Merge pull request Growstuff#740 from yez/feature/robots-dissalow-on-…

…staging

Feature/robots dissalow on staging

CONTRIBUTORS.md

@@ -54,4 +54,5 @@ submit the change with your pull request.
 - Rocky Jaiswal / [rocky-jaiswal](https://github.com/rocky-jaiswal)
 - Robert Landreaux / [robertlandreaux](https://github.com/robertlandreaux)
 - Savant Krishna / [sksavant](https://github.com/sksavant)
+- Jake Yesbeck / [yez](https://github.com/yez)
 

app/controllers/robots_controller.rb

@@ -0,0 +1,20 @@
+class RobotsController < ApplicationController
+
+  DEFAULT_FILENAME = 'config/robots.txt'.freeze
+
+  def robots
+    filename = if subdomain && subdomain != 'www'
+      "config/robots.#{ subdomain }.txt"
+    end
+
+    file_to_render = File.exists?(filename.to_s) ? filename : DEFAULT_FILENAME
+
+    render file: file_to_render, layout: false, content_type: 'text/plain'
+  end
+
+  private
+
+  def subdomain
+    request.subdomain.present? ? request.subdomain : nil
+  end
+end

config/robots.staging.txt

@@ -0,0 +1,2 @@
+User-Agent: *
+Disallow: /

config/routes.rb

@@ -1,5 +1,6 @@
 Growstuff::Application.routes.draw do
 
+  get '/robots.txt' => 'robots#robots'
 
   resources :plant_parts
 

spec/controllers/robots_controller_spec.rb

@@ -0,0 +1,56 @@
+require 'rails_helper'
+
+describe RobotsController do
+  describe '#robots' do
+    let(:production_filename) { 'config/robots.txt' }
+    let(:staging_filename)    { 'config/robots.staging.txt' }
+
+    before do
+      @request.host = "#{ subdomain }.localhost.com"
+    end
+
+    context 'subdomain is staging' do
+      let(:subdomain) { 'staging' }
+
+      it 'loads the staging robots.txt file' do
+        get :robots
+
+        expect(response).to be_success
+        expect(response.body).to eq(File.read(staging_filename))
+      end
+    end
+
+    context 'subdomain is www' do
+      let(:subdomain) { 'www' }
+
+      it 'loads the production robots.txt file' do
+        get :robots
+
+        expect(response).to be_success
+        expect(response.body).to eq(File.read(production_filename))
+      end
+    end
+
+    context 'subdomain is not present' do
+      let(:subdomain) { '' }
+
+      it 'loads the production robots.txt file' do
+        get :robots
+
+        expect(response).to be_success
+        expect(response.body).to eq(File.read(production_filename))
+      end
+    end
+
+    context 'subdomain is nonsense' do
+      let(:subdomain) { '1874ajnfien' }
+
+      it 'loads the production robots.txt file' do
+        get :robots
+
+        expect(response).to be_success
+        expect(response.body).to eq(File.read(production_filename))
+      end
+    end
+  end
+end