feat: Add Puma server with HTTP Basic auth in front of Jekyll site

Author: smockle

sites/site-with-errors/Gemfile

@@ -31,3 +31,7 @@ gem "wdm", "~> 0.1", :platforms => [:mingw, :x64_mingw, :mswin]
 # Lock `http_parser.rb` gem to `v0.6.x` on JRuby builds since newer versions of the gem
 # do not have a Java counterpart.
 gem "http_parser.rb", "~> 0.6.0", :platforms => [:jruby]
+
+# Web server
+gem "rack", "~> 3.2"
+gem "puma", "~> 6.0"

sites/site-with-errors/Gemfile.lock

@@ -95,9 +95,13 @@ GEM
       jekyll (>= 3.5, < 5.0)
       jekyll-feed (~> 0.9)
       jekyll-seo-tag (~> 2.1)
+    nio4r (2.7.4)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
     public_suffix (6.0.2)
+    puma (6.6.1)
+      nio4r (~> 2.0)
+    rack (3.2.1)
     rake (13.3.0)
     rb-fsevent (0.11.2)
     rb-inotify (0.11.1)
@@ -167,6 +171,8 @@ DEPENDENCIES
   jekyll (~> 4.4.1)
   jekyll-feed (~> 0.12)
   minima (~> 2.5)
+  puma (~> 6.0)
+  rack (~> 3.2)
   tzinfo (>= 1, < 3)
   tzinfo-data
   wdm (~> 0.1)

sites/site-with-errors/config.ru

@@ -0,0 +1,53 @@
+require 'rack'
+require 'rack/auth/basic'
+require 'rack/static'
+
+# Basic authentication middleware
+use Rack::Auth::Basic, "Protected Area" do |username, password|
+  expected_username = ENV['TEST_USERNAME']
+  expected_password = ENV['TEST_PASSWORD']
+
+  # Check if environment variables are set
+  if expected_username.nil? || expected_password.nil?
+    puts "Warning: TEST_USERNAME and/or TEST_PASSWORD environment variables not set"
+    false
+  else
+    username == expected_username && password == expected_password
+  end
+end
+
+# Serve static files from _site directory
+use Rack::Static,
+  urls: %w[/],
+  root: File.expand_path('_site', __dir__),
+  index: 'index.html'
+
+# Fallback for requests that don't match static files
+run lambda { |env|
+  path = env['PATH_INFO']
+  
+  # Try to serve the requested file
+  file_path = File.join(File.expand_path('_site', __dir__), path)
+  
+  # If it's a directory, try to serve index.html
+  if File.directory?(file_path)
+    index_path = File.join(file_path, 'index.html')
+    if File.exist?(index_path)
+      [200, {'Content-Type' => 'text/html'}, [File.read(index_path)]]
+    else
+      [404, {'Content-Type' => 'text/html'}, [File.read(File.join(File.expand_path('_site', __dir__), '404.html'))]]
+    end
+  elsif File.exist?(file_path)
+    content_type = case File.extname(file_path)
+                   when '.html' then 'text/html'
+                   when '.css' then 'text/css'
+                   when '.js' then 'application/javascript'
+                   when '.xml' then 'application/xml'
+                   else 'text/plain'
+                   end
+    [200, {'Content-Type' => content_type}, [File.read(file_path)]]
+  else
+    # Serve 404 page
+    [404, {'Content-Type' => 'text/html'}, [File.read(File.join(File.expand_path('_site', __dir__), '404.html'))]]
+  end
+}