Hello world

First open source release of Campfire 🎉

app/controllers/qr_code_controller.rb

@@ -0,0 +1,11 @@
+class QrCodeController < ApplicationController
+  allow_unauthenticated_access
+
+  def show
+    url = Base64.urlsafe_decode64(params[:id])
+    qr_code = RQRCode::QRCode.new(url).as_svg(viewbox: true, fill: :white, color: :black)
+
+    expires_in 1.year, public: true
+    render plain: qr_code, content_type: "image/svg+xml"
+  end
+end