+ def permalink
+ lon, lat, zoom = ShortLink.decode(params[:code])
+ new_params = params.except(:host, :controller, :action, :code, :lon, :lat, :zoom, :layers, :node, :way, :relation, :changeset)
+
+ if new_params.key? :m
+ new_params.delete :m
+ new_params[:mlat] = lat
+ new_params[:mlon] = lon
+ end
+
+ new_params[:anchor] = "map=#{zoom}/#{lat}/#{lon}"
+ new_params[:anchor] += "&layers=#{params[:layers]}" if params.key? :layers
+
+ options = new_params.to_unsafe_h.to_options
+
+ path = if params.key? :node
+ node_path(params[:node], options)
+ elsif params.key? :way
+ way_path(params[:way], options)
+ elsif params.key? :relation
+ relation_path(params[:relation], options)
+ elsif params.key? :changeset
+ changeset_path(params[:changeset], options)
+ else
+ root_url(options)
+ end
+
+ redirect_to path
+ end
+
+ def key
+ expires_in 7.days, :public => true
+ render :layout => false
+ end
+
+ def edit
+ editor = preferred_editor
+
+ if editor == "remote"
+ require_oauth
+ render :action => :index, :layout => map_layout
+ return
+ else
+ require_user
+ end
+
+ if %w[id].include?(editor)
+ append_content_security_policy_directives(
+ :frame_src => %w[blob:]
+ )
+ end