Create trace data resource

app/controllers/traces/data_controller.rb

@@ -0,0 +1,41 @@
+module Traces
+  class DataController < ApplicationController
+    layout "site"
+
+    before_action :authorize_web
+    before_action :set_locale
+    before_action :check_database_readable
+
+    authorize_resource :class => Trace
+
+    before_action :offline_redirect
+
+    def show
+      trace = Trace.visible.find(params[:trace_id])
+
+      if trace.public? || (current_user && current_user == trace.user)
+        if Acl.no_trace_download(request.remote_ip)
+          head :forbidden
+        elsif request.format == Mime[:xml]
+          send_data(trace.xml_file.read, :filename => "#{trace.id}.xml", :type => request.format.to_s, :disposition => "attachment")
+        elsif request.format == Mime[:gpx]
+          send_data(trace.xml_file.read, :filename => "#{trace.id}.gpx", :type => request.format.to_s, :disposition => "attachment")
+        elsif trace.file.attached?
+          redirect_to rails_blob_path(trace.file, :disposition => "attachment")
+        else
+          send_file(trace.trace_name, :filename => "#{trace.id}#{trace.extension_name}", :type => trace.mime_type, :disposition => "attachment")
+        end
+      else
+        head :not_found
+      end
+    rescue ActiveRecord::RecordNotFound
+      head :not_found
+    end
+
+    private
+
+    def offline_redirect
+      render :template => "traces/offline" if Settings.status == "gpx_offline"
+    end
+  end
+end