From ab45c8525d2e991657c64be40ceffd856d9c2a26 Mon Sep 17 00:00:00 2001
From: Chris Cormack <chris@bigballofwax.co.nz>
Date: Sat, 7 Nov 2009 20:10:58 +1300
Subject: [PATCH] Enabling mod_gzip for apache 1.3 and mod_deflate for 2.0+
 Patch courtesy of Pablo A. Bianchi

---
 etc/koha-httpd.conf | 93 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 93 insertions(+)

diff --git a/etc/koha-httpd.conf b/etc/koha-httpd.conf
index eaf249ea7e..2c8dfa0232 100644
--- a/etc/koha-httpd.conf
+++ b/etc/koha-httpd.conf
@@ -17,6 +17,53 @@
    SetEnv KOHA_CONF "__KOHA_CONF_DIR__/koha-conf.xml"
    SetEnv PERL5LIB "__PERL_MODULE_DIR__"
 
+   <IfModule mod_gzip.c>
+     mod_gzip_on yes
+     mod_gzip_dechunk yes
+     mod_gzip_keep_workfiles No
+     mod_gzip_can_negotiate yes
+     mod_gzip_update_static No
+     mod_gzip_temp_dir /tmp
+     mod_gzip_minimum_file_size 512
+     mod_gzip_maximum_file_size 1000000
+     mod_gzip_maximum_inmem_size 1000000
+     mod_gzip_handle_methods GET POST
+     mod_gzip_item_exclude reqheader "User-Agent: .*Mozilla/4\..*\["
+     mod_gzip_item_exclude mime ^image/.*
+     mod_gzip_item_exclude rspheader Content-Type:image/*
+     mod_gzip_item_include file \.js$
+     mod_gzip_item_include mime ^application/x-javascript$
+     mod_gzip_item_include file \.php$
+     mod_gzip_item_include mime ^text/html$
+     mod_gzip_item_include file \.css$
+     mod_gzip_item_include mime ^text/css$
+  </IfModule>
+
+  <IfModule mod_deflate.c>
+
+    # Compress content with type html, text, and css, ...
+    AddOutputFilterByType DEFLATE text/plain text/html text/xml text/css
+    AddOutputFilterByType DEFLATE application/xml application/xhtml+xml application/rss+xml application/javascript application/x-javascript
+
+    DeflateCompressionLevel 9
+
+    # Properly handle old browsers that do not support compression
+    BrowserMatch ^Mozilla/4 gzip-only-text/html
+    BrowserMatch ^Mozilla/4\.0[678] no-gzip
+    BrowserMatch \bMSIE !no-gzip !gzip-only-text/html
+
+    DeflateFilterNote Input instream
+    DeflateFilterNote Output outstream
+    DeflateFilterNote Ratio ratio
+
+    LogFormat '"%r" %{outstream}n/%{instream}n (%{ratio}n%%)' deflate
+    <IfModule mod_headers.c>
+       #properly handle requests coming from behind proxies
+       Header append Vary User-Agent
+    </IfModule>
+  </IfModule>
+
+
 #  Repeat this virtualhost stanza changing the following environment vars to
 #  create multiple OPAC interfaces with custom css and/or search limits:
 #  SetEnv OPAC_CSS_OVERRIDE mystyle.css
@@ -66,6 +113,52 @@
    ErrorDocument 404 /cgi-bin/koha/errors/404.pl
    ErrorDocument 500 /cgi-bin/koha/errors/500.pl
 
+   <IfModule mod_gzip.c>
+     mod_gzip_on yes
+     mod_gzip_dechunk yes
+     mod_gzip_keep_workfiles No
+     mod_gzip_can_negotiate yes
+     mod_gzip_update_static No
+     mod_gzip_temp_dir /tmp
+     mod_gzip_minimum_file_size 512
+     mod_gzip_maximum_file_size 1000000
+     mod_gzip_maximum_inmem_size 1000000
+     mod_gzip_handle_methods GET POST
+     mod_gzip_item_exclude reqheader "User-Agent: .*Mozilla/4\..*\["
+     mod_gzip_item_exclude mime ^image/.*
+     mod_gzip_item_exclude rspheader Content-Type:image/*
+     mod_gzip_item_include file \.js$
+     mod_gzip_item_include mime ^application/x-javascript$
+     mod_gzip_item_include file \.php$
+     mod_gzip_item_include mime ^text/html$
+     mod_gzip_item_include file \.css$
+     mod_gzip_item_include mime ^text/css$
+   </IfModule>
+
+   <IfModule mod_deflate.c>
+
+     # Compress content with type html, text, and css, ...
+     AddOutputFilterByType DEFLATE text/plain text/html text/xml text/css
+     AddOutputFilterByType DEFLATE application/xml application/xhtml+xml application/rss+xml application/javascript application/x-javascript
+
+     DeflateCompressionLevel 9
+
+     # Properly handle old browsers that do not support compression
+     BrowserMatch ^Mozilla/4 gzip-only-text/html
+     BrowserMatch ^Mozilla/4\.0[678] no-gzip
+     BrowserMatch \bMSIE !no-gzip !gzip-only-text/html
+
+     DeflateFilterNote Input instream
+     DeflateFilterNote Output outstream
+     DeflateFilterNote Ratio ratio
+
+     LogFormat '"%r" %{outstream}n/%{instream}n (%{ratio}n%%)' deflate
+     <IfModule mod_headers.c>
+       #properly handle requests coming from behind proxies
+       Header append Vary User-Agent
+     </IfModule>
+  </IfModule>
+
    RewriteEngine On    
 #  Uncomment to turn on rewrite logging
 #  RewriteLog __LOG_DIR__/koha-intranet-rewrite.log
-- 
2.39.2