Add auth_server for testing

sample/auth_server.rb

@@ -0,0 +1,48 @@
+require 'webrick'
+require 'tempfile'
+
+class AuthServlet < WEBrick::HTTPServlet::AbstractServlet
+
+  @instance = nil
+
+  def self.get_instance server, *options
+    @instance ||= new(server, *options)
+  end
+
+  def initialize server
+    super server
+
+    config = {}
+    config[:Realm] = 'net-http-digest_auth'
+    config[:UseOpaque] = false
+    config[:AutoReloadUserDB] = false
+    config[:Algorithm] = 'MD5'
+
+    passwd_file = Tempfile.new 'net-http-digest_auth'
+    passwd_file.close
+
+    htpasswd = WEBrick::HTTPAuth::Htpasswd.new passwd_file.path
+    htpasswd.auth_type = WEBrick::HTTPAuth::DigestAuth
+    htpasswd.set_passwd config[:Realm], 'username', 'password'
+    htpasswd.flush
+
+    config[:UserDB] = htpasswd
+
+    @digest_auth = WEBrick::HTTPAuth::DigestAuth.new config
+  end
+
+  def do_GET req, res
+    @digest_auth.authenticate req, res
+
+    res.body = 'worked!'
+  end
+
+end
+
+s = WEBrick::HTTPServer.new :Port => 8000
+s.mount '/', AuthServlet
+
+trap 'INT' do s.shutdown end
+
+s.start
+