Issue 3094 - Redirect CN requests to browser download page

modules/web/templates/adblockplus.org.conf.erb

 # XSS and clickjacking prevention headers
 
 set $csp_frame "";
 if ($uri ~ ^/(:?\w\w(_\w\w)?/)?(?:index|firefox|chrome|opera|android|internet-explorer|safari|yandex-browser|maxthon)?$)
 {
   set $csp_frame "; frame-src www.youtube-nocookie.com;";
 }
 add_header Content-Security-Policy "default-src 'self'; img-src * data:; style-src 'self' 'unsafe-inline'; script-src 'self' 'unsafe-inline' 'unsafe-eval' $csp_frame";
 add_header X-Frame-Options "sameorigin";
 
@@ skipping 73 matching lines @@
 rewrite ^/update.rdf$ https://update.adblockplus.org/gecko/update.rdf permanent;
 rewrite ^/updates.plist$ https://update.adblockplus.org/adblockplussafari/updates.plist permanent;
 rewrite ^/androidupdate.json$ https://update.adblockplus.org/adblockplusandroid/update.json permanent;
 rewrite ^/androidupdates.xml$ https://update.adblockplus.org/adblockplusandroid/updates.xml permanent;
 rewrite ^/ieupdate.json$ https://update.adblockplus.org/adblockplusie/update.json permanent;
 
 rewrite ^/(\w\w(_\w\w)?/)?adblock-browser/?$ https://adblockbrowser.org/ permanent;
 
 location /redirect
 {
+  set $adblock_browser_android_download "https://downloads.adblockplus.org/adblockbrowser-1.0.0-arm.apk";
+  set $adblock_browser_android_store "https://play.google.com/store/apps/details?id=org.adblockplus.browser";
+
+  # Google Play is not available in China, so we redirect them to the
+  # builds for download, see https://issues.adblockplus.org/ticket/3094
+  if ($geoip_country_code = 'CN')
+  {
+    set $adblock_browser_android_store $adblock_browser_android_download;
+  }
+
   if ($arg_link = "reporter_connect_issue")
   {
     rewrite ^ /forum/? redirect;
   }
   if ($arg_link = "reporter_other_link")
   {
     rewrite ^ /forum/? redirect;
   }
   if ($arg_link = "chrome_support")
   {
@@ skipping 22 matching lines @@
   if ($arg_link = "adblock_browser_android_support")
   {
     rewrite ^ https://adblockbrowser.org/en/android-support/? redirect;
   }
   if ($arg_link = "adblock_browser_ios_support")
   {
     rewrite ^ https://adblockbrowser.org/en/ios-support/? redirect;
   }
   if ($arg_link = "adblock_browser_android_store")
   {
-    rewrite ^ https://play.google.com/store/apps/details?id=org.adblockplus.browser? redirect;
+    rewrite ^ $adblock_browser_android_store? redirect;
   }
   if ($arg_link = "adblock_browser_ios_store")
   {
     rewrite ^ https://itunes.apple.com/us/app/adblock-browser/id1015653330?ls=1&mt=8? redirect;
   }
   if ($arg_link = "adblock_browser_android_download")
   {
-    rewrite ^ https://downloads.adblockplus.org/adblockbrowser-1.0.0-arm.apk? redirect;
+    rewrite ^ $adblock_browser_android_download? redirect;
   }
   if ($arg_link = "adblock_plus_safari_ios_support")
   {
     rewrite ^ /forum/viewforum.php?f=26? redirect;
   }
   if ($arg_link = "adblock_plus_safari_ios_store")
   {
     rewrite ^ https://itunes.apple.com/app/adblock-plus-abp/id1028871868? redirect;
   }
 
@@ skipping 132 matching lines @@
 location /403.html
 {
   try_files $uri @proxied;
 }
 location @proxied
 {
   proxy_pass https://server16.adblockplus.org;
   proxy_set_header Host adblockplus.org;
   proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
 }