Merge pull request #2441 from basecamp/mobile/verify-app-links

Add the public Digital Asset Links file to verify app links on Android

saas/lib/fizzy/saas/engine.rb

@@ -17,6 +17,11 @@ module Fizzy
         app.config.assets.paths << root.join("app/assets/stylesheets")
       end
 
+      initializer "fizzy_saas.public_files" do |app|
+        app.middleware.insert_after ActionDispatch::Static, ActionDispatch::Static, root.join("public").to_s,
+          headers: app.config.public_file_server.headers
+      end
+
       initializer "fizzy.saas.routes", after: :add_routing_paths do |app|
         # Routes that rely on the implicit account tenant should go here instead of in +routes.rb+.
         app.routes.prepend do

saas/public/.well-known/assetlinks.json

@@ -0,0 +1,11 @@
+[
+  {
+    "relation": ["delegate_permission/common.handle_all_urls"],
+    "target": {
+      "namespace": "android_app",
+      "package_name": "do.fizzy.app",
+      "sha256_cert_fingerprints":
+        ["3B:17:E4:FF:F0:2E:E0:CE:D7:94:F9:9E:71:3C:A8:14:7C:FA:B7:F2:99:35:98:03:E9:E0:EB:B3:6E:12:E2:0F"]
+    }
+  }
+]