Re: [naviserver-devel] gzipping static content - how to do?

[Gustaf N. <ne...@wu...>]

Dear John,

The option "gzip_static" requires, that the files to be delivered are gzip
compressed in the file system. In order to have "gzip_rerfresh" working
(automatically re-compress the file when the version has changed) requires
that the server has write permissions on the .gz file and that "gzip_cmd"
points to the gzip program.

Below is something some data from a life site (openacs.org) having
static gzip delivery enabled with a snippet from the config file.

There is no extra filter necessary to get this working.

best regards
-gustaf neumann

URL: 
http://www.openacs.org/resources/openacs-bootstrap3-theme/css/all.min.css

Snippet from the config file:

#---------------------------------------------------------------------
# Global fastpath parameters
#---------------------------------------------------------------------
ns_section      "ns/fastpath"
     #ns_param        cache               true       ;# default: false
     #ns_param        cachemaxsize        10240000   ;# default: 1024*10000
     #ns_param        cachemaxentry       100000     ;# default: 8192
     #ns_param        mmap                true       ;# default: false
     ns_param        gzip_static         true       ;# check for static gzip; default: false
     ns_param        gzip_refresh        true       ;# refresh stale .gz files on the fly using ::ns_gzipfile
     ns_param        gzip_cmd            "/bin/gzip -9"  ;# use for re-compressing


files in the file system
/var/www/openacs.org/packages/openacs-bootstrap3-theme/www/resources/css# ls -ltr
-rw-rw-r-- 1 openacs  nsadmin 115102 Jul 15  2016 all.min.css
-rw-rw-r-- 1 openacs  nsadmin  20213 Jul 15  2016 all.min.css.gz
...

Reply header fields:

Accept-Ranges	|bytes|
Connection	|keep-alive|
Content-Encoding	|gzip|
Content-Length	|20213|
Content-Type	|text/css|
Date	|Sat, 14 Jan 2017 15:01:46 GMT|
Expires	|Mon, 13 Feb 2017 15:01:46 GMT|
Last-Modified	|Fri, 15 Jul 2016 15:39:21 GMT|
Server	|NaviServer/4.99.15|
Vary	|Accept-Encoding|
X-Content-Type-Options	|nosniff|
X-Frame-Options	|SAMEORIGIN|
X-XSS-Protection	|1; mode=block|

  

Am 14.01.17 um 06:10 schrieb John from Decent Espresso:
> I’m struggling a bit to get naviserver to gzip static content (.js 
> and.css). ADP gzipping is working.
> According to the docs, it’d seem that all I need to do is enable all 
> the fastpath config stuff below, and it’d work, but that’s not doing 
> the trick.  Perhaps there is additional fast path configuring to do to 
> enable certain directories?
> According to this code by Daniel Clark, a fast path filter is needed 
> to make this work, but it seems that (a) his code may not be current 
> and (b) his filter doesn’t work because he doesn’t supply the other 
> dependent functions his code calls.
> https://www.qcode.co.uk/post/121
> I’ve looked at the fastpath.c/fastpath.tcl as the docs indicated, but 
> was not illuminated.
> I probably just don’t know where to look, but after about 2h of 
> banging on this, I thought I’d ask for help….
> -john
> ns_section"ns/fastpath"
>    # Enable cache for normal URLs. Optional, default is false.
>    ns_paramcachetrue
>    # Size of fast path cache. Optional, default is ~10M.
>    ns_paramcachemaxsize[expr 1024*10000]
>    # Largest file size allowed in cache. Optional, default is 8K
>    ns_paramcachemaxentry8192
>    # Use mmap() for cache. Optional, default is false.
>    ns_parammmaptrue
>    # Return gzip-ed variant, if available and allowed by client 
> (default false)
>    ns_paramgzip_statictrue
>    # Refresh stale .gz files on the fly using ::ns_gzipfile (default 
> false)
>    ns_paramgzip_refreshtrue
>    # Return the specified command for re-compressing when gzip file is 
> outdated
>    ns_paramgzip_cmd"/usr/bin/gzip -9"
>
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-- 
Univ.Prof. Dr. Gustaf Neumann
WU Vienna
Institute of Information Systems and New Media
Welthandelsplatz 1, A-1020 Vienna, Austria