# Adding header/footer to gzip'ed html files
**URL:** \
**Category:** NGINX\
**Created:** [April 27, 2013, 7:41pm UTC](https://www.ruby-forum.com/t/adding-header-footer-to-gziped-html-files/228564 "2013-04-27T19:41:59Z")\
**Posts on this page:** 1\
**Page:** 1
**Author:**  [@Constantine\_ASMure](https://www.ruby-forum.com/u/Constantine_ASMure)\
**Post date:** [April 27, 2013, 7:41pm UTC](https://www.ruby-forum.com/t/adding-header-footer-to-gziped-html-files/228564/1 "2013-04-27T19:41:59Z")
Hello,
I’m trying to see ways in which OpenGrok could be optimised with nginx.
One of the ideas I have is using nginx to serve the /xref/ pages,
instead of them going through OpenGrok each time. OpenGrok (the
indexer) pre-generates the body of the /xref/ pages, and stores the
resulting html as .gz files, but those files don’t have any
header/footer, and require to be presented within “
```
” and “
```
”,
which OpenGrok (the webapp) then adds on the fly.
Would it be possible to use `add_before_body` and `add_after_body`
([http://nginx.org/docs/http/ngx\_http\_addition\_module.html](http://nginx.org/docs/http/ngx_http_addition_module.html)), together
with `gzip_static always`
([Module ngx\_http\_gzip\_static\_module](http://nginx.org/docs/http/ngx_http_gzip_static_module.html)), together
with `gunzip on`
([Module ngx\_http\_gunzip\_module](http://nginx.org/docs/http/ngx_http_gunzip_module.html)), to replace
passing /xref/ to OpenGrok (the webapp)?
Technically, gzip / deflate is a stream encoding, so, supposedly,
there’d be no need to decode and re-encode the .gz files, but some
special handling will probably still have to be performed nonetheless.
I presume a scenario as above would not currently work (but I might as
well be wrong); however, does this sound like something that’s
potentially interesting, and not overly difficult and complicated to fix
up? Or would it be simpler to amend all the /xref/ pages for all of
them to redundantly include the needed header and footer?
Cheers,
Constantine.