infrastructure: Redirects for the new website

modules/adblockplusorg/files/adblockplus.org

 server {
   root /var/www/adblockplus.org/httpdocs;
 
   location / {
     index index.php index index.html;
 
     if ($arg_a = "view") {
       rewrite ^(.*) $1? permanent;
     }
 
     set $preferredLang en;
     if ($http_accept_language ~ ^(\w\w)\b) {
       set $preferredLang $1;
     }
     if (!-f $document_root/static/$preferredLang/index) {
       set $preferredLang en;
     }
 
-    if ($arg_a ~ ^(view|show)?$) {
-      rewrite ^/(index\.html)?$ /$preferredLang/? redirect;
-      rewrite ^/(\w\w(_\w\w)?)$ /$1/ redirect;
+    set $browser "firefox";
+    if ($http_user_agent ~ \bChrome/\d+) {
+      set $browser "chrome";
+    }
+    if ($http_user_agent ~ \bPresto/\d+) {
+      set $browser "opera";
+    }
+    if ($http_user_agent ~ \bAndroid\s.*\bAppleWebKit/\d+) {
+      set $browser "android";
     }
 
-    rewrite ^/(\w\w)/installation$ /$1/ permanent;
+    if ($arg_a ~ ^(view|show)?$) {
+      rewrite ^/(index\.html)?$ /$preferredLang/#$browser redirect;
+      rewrite ^/(\w\w(_\w\w)?)$ /$1/#$browser redirect;
+    }
+
+    rewrite ^/(\w\w(_\w\w)?)/(firefox|chrome|opera|android) /$1/#$3 permanent;
+    rewrite ^/(\w\w(_\w\w)?)/installation$ /$1/ permanent;
     rewrite ^/anwiki/(.*) /$1 permanent;
 
     if (-f $request_filename) {
       break;
     }
     if (-d $request_filename) {
       break;
     }
 
-    if ($http_user_agent ~ \bChrome/\d+) {
-      rewrite ^/(\w\w(_\w\w)?)/?$ /$1/chrome;
-    }
-    if ($http_user_agent ~ \bPresto/\d+) {
-      rewrite ^/(\w\w(_\w\w)?)/?$ /$1/opera;
-    }
-    if ($http_user_agent !~ \bChrome/\d+) {
-      rewrite ^/(\w\w(_\w\w)?)/?$ /$1/firefox;
-    }
-
     set $static "";
     if (-f "$document_root/static$uri") {
       set $static "ok";
     }
     if (-d "$document_root/static$uri") {
       set $static "ok";
     }
     set $static "$static!$arg_a!$cookie_anwiki_anwsesscode";
     if ($static ~ ^ok!(view|show)?!$) {
       rewrite (.*) /static$1 last;
@@ skipping 67 matching lines @@
     fastcgi_param GATEWAY_INTERFACE CGI/1.1;
     fastcgi_param SERVER_SOFTWARE nginx/$nginx_version;
 
     fastcgi_param REMOTE_ADDR $remote_addr;
     fastcgi_param REMOTE_PORT $remote_port;
     fastcgi_param SERVER_ADDR $server_addr;
     fastcgi_param SERVER_PORT $server_port;
     fastcgi_param SERVER_NAME $server_name;
   }
 }