Please helpe me, hacking the module Gzip Pre-Compression Module

Maxim Dounin mdounin at
Fri Dec 14 17:57:07 UTC 2012


On Fri, Dec 14, 2012 at 12:29:15PM -0500, vvpham wrote:

> Hello,
> I wrote to Igor but do not have the response so I write my question here and
> please help me.
> Firse of all, excuse me for my bad english!!!!!
> I hack the module "ngx_http_gzip_static_module.c" and I know that if client
> demande a file A, for example, the server NGINX will search the file "A.gz"
> and if it exist, Server will uncompress this gz file and the Server will
> serve the file uncompress of A.gz.

This is incorrect.  The gzip_static assumes there are two files 
with identical contents:


The "foo" file (uncompressed one) will be returned to clients 
which doesn't support gzip.  The "foo.gz" file (compressed one) 
will be returned to clients which support gzip.

If you want nginx to uncompress a gz file, you have to use 
recently introduced gunzip module, see, 
along with gzip_static set to "always".

> It is not my objectif. My objectif is if a client demande a file B, for
> example. The server will search the file B.gz(compressed file) and serve
> this file if it exists. Client will receive file B.gz, not file B
> uncompressed.
> I lost for weeks for hacking this function but do not success. Please help
> me to figure out how I can realize this.

I'm not sure I understand correctly what you want, but it looks 
like what you are asking for is "gzip_static always", as available 
in nginx 1.3.6+.  See for details.

Maxim Dounin

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