add support for unix socket

lib/reverse_proxy/client.rb

@@ -49,13 +49,18 @@ module ReverseProxy
       source_request = Rack::Request.new(env)
 
       # We can pass in a custom path
-      uri = Addressable::URI.parse("#{url}#{options[:path] || env['ORIGINAL_FULLPATH']}")
+      uri = Addressable::URI.parse(self.url)
+      prefix_path = uri.request_uri
+      path = "#{prefix_path}#{options[:path] || env['ORIGINAL_FULLPATH']}"
+      if path.blank?
+        path = "/"
+      end
 
       # Define headers
       target_request_headers = extract_http_request_headers(source_request.env).merge(options[:headers])
 
       # Initialize request
-      target_request = Net::HTTP.const_get(source_request.request_method.capitalize).new(uri.request_uri, target_request_headers)
+      target_request = Net::HTTP.const_get(source_request.request_method.capitalize).new(path, target_request_headers)
 
       # Basic auth
       target_request.basic_auth(options[:username], options[:password]) if options[:username] and options[:password]
@@ -85,7 +90,8 @@ module ReverseProxy
       http_options.merge!(options[:http]) if options[:http]
 
       # Make the request
-      Net::HTTP.start(uri.hostname, uri.port, http_options) do |http|
+      hostname =  self.url.starts_with?("unix://") ? uri.to_s : uri.hostname
+      NetX::HTTPUnix.start(hostname, uri.port, http_options) do |http|
         callbacks[:on_connect].call(http)
         target_response = http.request(target_request)
       end