diff --git a/middleman-core/lib/middleman-core/meta_pages.rb b/middleman-core/lib/middleman-core/meta_pages.rb
new file mode 100644
index 00000000..7e38ba9f
--- /dev/null
+++ b/middleman-core/lib/middleman-core/meta_pages.rb
@@ -0,0 +1,59 @@
+require 'rack/builder'
+require 'rack/static'
+require 'tilt'
+
+module Middleman
+ # Metadata pages to be served in preview, in order to present information about the Middleman
+ # application and its configuration. Analogous to Firefox/Chrome's "about:" pages.
+ #
+ # Built using a ghetto little Rack web framework cobbled together because I didn't want to depend
+ # on Sinatra or figure out how to host Middleman inside Middleman.
+ class MetaPages
+ def initialize(middleman)
+ # Hold a reference to the middleman application
+ @middleman = middleman
+
+ meta_pages = self
+ @rack_app = Rack::Builder.new do
+ # Serve assets from metadata/assets
+ use Rack::Static, :urls => ["/assets"], :root => File.join(File.dirname(__FILE__), 'meta_pages')
+
+ map '/' do
+ run meta_pages.method(:index)
+ end
+
+ map '/sitemap' do
+ run meta_pages.method(:sitemap)
+ end
+ end
+ end
+
+ def call(*args)
+ @rack_app.call(*args)
+ end
+
+ # The index page
+ def index(env)
+ template('index.html.erb')
+ end
+
+ # Inspect the sitemap
+ def sitemap(env)
+ template('sitemap.html.erb', :resources => @middleman.sitemap.resources(true))
+ end
+
+ private
+
+ # Render a template with the given name and locals
+ def template(template_name, locals={})
+ template_path = File.join(File.dirname(__FILE__), 'meta_pages', 'templates', template_name)
+ content = Tilt.new(template_path).render(nil, locals)
+ response(content)
+ end
+
+ # Respond to an HTML request
+ def response(content)
+ [ 200, {"Content-Type" => "text/html"}, Array(content) ]
+ end
+ end
+end
diff --git a/middleman-core/lib/middleman-core/meta_pages/templates/index.html.erb b/middleman-core/lib/middleman-core/meta_pages/templates/index.html.erb
new file mode 100644
index 00000000..2de502a7
--- /dev/null
+++ b/middleman-core/lib/middleman-core/meta_pages/templates/index.html.erb
@@ -0,0 +1,19 @@
+
+
+
+
+
+ Middleman Meta Pages
+
+
+
+ Middleman Meta Pages
+
+ Peer into the bowels of your Middleman application with these handy views!
+
+
+
+
+
diff --git a/middleman-core/lib/middleman-core/meta_pages/templates/sitemap.html.erb b/middleman-core/lib/middleman-core/meta_pages/templates/sitemap.html.erb
new file mode 100644
index 00000000..c8c3eb8b
--- /dev/null
+++ b/middleman-core/lib/middleman-core/meta_pages/templates/sitemap.html.erb
@@ -0,0 +1,20 @@
+
+
+
+
+
+ Middleman Sitemap
+
+
+
+ Middleman Sitemap
+ More meta pages
+
+
+ <% resources.each do |resource| %>
+ - <%= resource.path %>
+ <% end %>
+
+
+
+
diff --git a/middleman-core/lib/middleman-core/preview_server.rb b/middleman-core/lib/middleman-core/preview_server.rb
index eddd6637..6e2f19ec 100644
--- a/middleman-core/lib/middleman-core/preview_server.rb
+++ b/middleman-core/lib/middleman-core/preview_server.rb
@@ -1,4 +1,5 @@
require "webrick"
+require 'middleman-core/meta_pages'
module Middleman
module PreviewServer
@@ -156,8 +157,16 @@ module Middleman
@webrick ||= setup_webrick(@options[:debug] || false)
start_file_watcher
+
+ rack_app = app.class.to_rack_app
- @webrick.mount "/", ::Rack::Handler::WEBrick, app.class.to_rack_app
+ # Add in the meta pages application
+ meta_app = Middleman::MetaPages.new(app.class.inst)
+ rack_app.map '/__middleman' do
+ run meta_app
+ end
+
+ @webrick.mount "/", ::Rack::Handler::WEBrick, rack_app
end
# Detach the current Middleman::Application instance