Redirect for more granular control of lists

modules/filterserver/files/site.conf

 root /var/www/easylist;
 keepalive_timeout 0;
 charset utf-8;
 gzip_static on;
 default_type text/plain;
+
+set $use_alternative_resource_flags 0;

[mathias, 2017/04/10 17:20:00]

We should link to the Hub tickets where appropriate, in order to explain what
the fuzz is about.

+
+if ($arg_addonName ~ ^([Mm]axthon)$)
+{
+  set $use_alternative_resource_flags "BROWSER";
+}
+
+if ($arg_addonName ~ ^(adblockplusie)$)
+{
+  set $use_alternative_resource_flags "IE";
+}
+
+if ($arg_application ~ ^(yowser|adblockbrowser)$)
+{
+  set $use_alternative_resource_flags "BROWSER";
+}
+
+if ($arg_addonName = "libadblockplus-android")
+{
+  set $use_alternative_resource_flags "ZTE";
+}
+
+if ($geoip_country_code = "DE")
+{
+  set $use_alternative_resource_flags "${use_alternative_resource_flags}+LOCATION";
+}
+
+if ($use_alternative_resource_flags = "BROWSER+LOCATION")
+{
+  rewrite ^/easylist\.(.+) /easylist_noelemhide.$1 redirect;
+  rewrite ^/easylistgermany\+easylist\.(.+) /easylistgermany_noelemhide+easylist_noelemhide.$1 redirect;
+  rewrite ^/easylistgermany\.(.+) /easylistgermany_noelemhide.$1 redirect;
+}
+
+if ($use_alternative_resource_flags = "IE+LOCATION")
+{
+  rewrite ^/easylist\.(.+) /easylist_noelemhide.$1 break;
+  rewrite ^/easylistgermany\+easylist\.(.+) /easylistgermany_noelemhide+easylist_noelemhide.$1 break;
+  rewrite ^/easylistgermany\.(.+) /easylistgermany_noelemhide.$1 break;
+}
+
+if ($use_alternative_resource_flags = "ZTE")
+{
+  rewrite ^/exceptionrules\.(.+) /exceptionrules-minimal.$1 break;
+}
+