flatterline.rb

## Required libraries ##
  require 'rubygems'
  require 'sinatra'

## Global Settings ##
  set :public_folder,  Proc.new { File.join(root, "_site") }
  set :email_username, ENV['SENDGRID_USERNAME']
  set :email_password, ENV['SENDGRID_PASSWORD']
  set :email_address,  'Flatterline <contact@flatterline.com>'
  set :email_service,  ENV['SENDGRID_ADDRESS']
  set :email_domain,   ENV['SENDGRID_DOMAIN']

  set :protection, :except => :frame_options

## Configuration ##
  configure :production do
    require 'newrelic_rpm'
  end

  IP_BLACKLIST = %w(122.255.96.164 91.196.216.20)

## Before callback ##
  # Added headers for Varnish
  before do
    if ENV['RACK_ENV'] == 'production' and request.path != '/blog'
      response.headers['Cache-Control'] = 'public, max-age=259200'
    end
  end

## Error Handling
  not_found do
    if @not_found.nil?
      @not_found = true
      send_email params, 'views/error_email_template.txt.erb', "Missing Page"
    end
    File.read("_site/404.html")
  end

  error 500..510 do
    send_email params, 'views/error_email_template.txt.erb', "Internal Error"
    File.read("_site/500.html")
  end

## GET requests ##
  ############################################################
  # Redirects
  ############################################################

  # Handle old site URLs with a permanent redirect
  get '/index.php/blog/?' do
    redirect '/blog', 301
  end

  get '/index.php/team/?' do
    redirect '/team', 301
  end

  get '/index.php/services/?' do
    redirect '/services', 301
  end

  get "/index.php/*/?" do |title|
    redirect "blog/#{title}", 301
  end

  get '/index.php' do
    redirect '/', 301
  end

  # Redirect trailing slash URLs
  get %r{\/(.*)\/$} do |url|
    redirect url, 301
  end

  # Redirects for Ad links
  get %r{^\/(ruby|rails|ruby-on-rails|ruby-on-rails-development|ruby-development|rails-development)} do
    redirect "/services/ruby-on-rails-development", 301
  end

  get %r{^\/code-audits?} do
    redirect "/services/code-audits", 301
  end

  ############################################################
  # GET routes
  ############################################################
  # Index page
  get '/' do
    page_num = (params[:p] || params[:page_id]).to_i
    if page_num == 1
      redirect "blog", 301
    elsif page_num > 1
      redirect "blog/page/#{page_num}", 301
    else
      File.read("_site/index.html")
    end
  end

  # Dynamic contact form
  get '/contact-form' do
    @errors = {}
    @title = "Ready to start developing? Contact us today."
    erb :contact_form
  end

  # RSS Feed
  get '/feed' do
    if request.user_agent =~ /FeedBurner/
      content_type 'application/atom+xml', :charset => 'utf-8'
      File.read("_site/feed/index.xml")
    else
      redirect 'http://feeds.feedburner.com/flatterline', 301
    end
  end

  get %r{^\/blog\/(feed|feed\/atom|blog\/feed)$} do
    redirect 'feed', 301
  end


  # Blitz.io routes
  get '/mu-3dd0acec-2383268f-097a0ad7-4e11727c' do
    '42'
  end

  get '/mu-1b15f325-41eb9c2d-c6972725-c56f1bfb' do
    '42'
  end

  # Catch All
  get "/*" do |title|
    if request.user_agent == '<?php system("id"); ?>' or IP_BLACKLIST.include?(request.ip)
      '' 
    else
      File.read("_site/#{title}/index.html") rescue raise Sinatra::NotFound
    end
  end

  ############################################################
  # POST routes
  ############################################################
  # Dynamic contact form
  post '/contact-form/?' do
    @title = "Ready to start developing? Contact us today."

    if (@errors = validate(params)).empty?
      begin
        send_email params, 'views/contact_email_template.txt.erb', "Contact form received from #{params[:name]}"
        @sent = true
        @title = "Thanks!"

      rescue => e
        puts e
        @failure = "Ooops, it looks like something went wrong while attempting to contact us. Mind trying again now or later? :)"
      end
    end

    erb :contact_form
  end

## Helper Methods ##
  def send_email(params, template, subject)
    from = "Flatterline <morecowbell@flatterline.com>"
    if params[:name] && params[:email]
      from = params[:name] + " <" + params[:email] + ">"
    end

    if settings.email_service.nil?
      puts "Sending email from #{from}>:"
      puts ERB.new(File.read(template)).result(binding)
    else
      require 'pony'
      Pony.mail(
        :from    => from,
        :to      => settings.email_address,
        :subject => "[Flatterline] #{subject}",
        :body    => ERB.new(File.read(template)).result(binding),
        :port    => '587',
        :via     => :smtp,
        :via_options => { 
          :address              => settings.email_service,
          :port                 => '587',
          :enable_starttls_auto => true,
          :user_name            => settings.email_username,
          :password             => settings.email_password,
          :authentication       => :plain,
          :domain               => settings.email_domain
        }
      )

      puts "Sent email from #{from}>"
    end
  end

  def valid_email?(email)
    email =~ /^[a-zA-Z][\w\.-]*[a-zA-Z0-9]@[a-zA-Z0-9][\w\.-]*[a-zA-Z0-9]\.[a-zA-Z][a-zA-Z\.]*[a-zA-Z]$/
  end

  def validate(params)
    {}.tap do |errors|
      [:name, :email, :message].each do |key|
        params[key] = (params[key] || '').strip
        errors[key] = "This field is required" if params[key].empty?
      end

      unless params[:email].empty?
        errors[:email] = "Please enter a valid email address" unless valid_email?(params[:email])
      end
    end
  end

__END__

@@ layout
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <link href="/stylesheets/screen.css" media="screen, projection" rel="stylesheet" type="text/css" />
    <!--[if IE]>
        <link href="/stylesheets/ie.css" media="screen, projection" rel="stylesheet" type="text/css" />
    <![endif]-->

    <!-- Le HTML5 shim, for IE6-8 support of HTML elements -->
    <!--[if lt IE 9]>
      <script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>
    <![endif]-->

    <script src="//ajax.googleapis.com/ajax/libs/jquery/1.7.0/jquery.min.js"></script>
  </head>

  <body>
    <%= yield %>
  </body>
</html>