Add IP-based SMTP authentication (#1149)

app/controllers/credentials_controller.rb

@@ -3,7 +3,7 @@ class CredentialsController < ApplicationController
   include WithinOrganization
 
   before_action { @server = organization.servers.present.find_by_permalink!(params[:server_id]) }
-  before_action { params[:id] && @credential = @server.credentials.find_by_key!(params[:id]) }
+  before_action { params[:id] && @credential = @server.credentials.find_by_uuid!(params[:id]) }
 
   def index
     @credentials = @server.credentials.order(:name).to_a
@@ -14,7 +14,7 @@ class CredentialsController < ApplicationController
   end
 
   def create
-    @credential = @server.credentials.build(params.require(:credential).permit(:type, :name, :hold))
+    @credential = @server.credentials.build(params.require(:credential).permit(:type, :name, :key, :hold))
     if @credential.save
       redirect_to_with_json [organization, @server, :credentials]
     else
@@ -23,7 +23,7 @@ class CredentialsController < ApplicationController
   end
 
   def update
-    if @credential.update(params.require(:credential).permit(:name, :hold))
+    if @credential.update(params.require(:credential).permit(:name, :key, :hold))
       redirect_to_with_json [organization, @server, :credentials]
     else
       render_form_errors 'edit', @credential