Land #10410, add script for setting up and managing data services

The msfdb script allows you to create, delete, start, and
stop local and remote data services. The database backend requires
PostgreSQL and the webservice provides a REST API to interact with it.

lib/msf/core/db_manager/http/servlet_helper.rb

@@ -2,10 +2,13 @@
 require 'msf/core/db_manager/http/db_manager_proxy'
 require 'msf/core/db_manager/http/job_processor'
 require 'metasploit/framework/data_service/remote/http/response_data_helper'
+require 'rex/ui/text/output/stdio'
 
 module ServletHelper
   include ResponseDataHelper
 
+  @@console_printer = Rex::Ui::Text::Output::Stdio.new
+
   def set_error_on_response(error)
     print_error "Error handling request: #{error.message}", error
     headers = {'Content-Type' => 'text/plain'}
@@ -134,7 +137,32 @@ def warden
   def warden_options
     env['warden.options']
   end
-
+
+  def print_line(msg)
+    @@console_printer.print_line(msg)
+  end
+
+  def print_warning(msg)
+    @@console_printer.print_warning(msg)
+  end
+
+  def print_good(msg)
+    @@console_printer.print_good(msg)
+  end
+
+  def print_error(msg, exception = nil)
+    unless exception.nil?
+      msg += "\n    Call Stack:"
+      exception.backtrace.each {|line|
+        msg += "\n"
+        msg += "\t #{line}"
+      }
+    end
+
+    @@console_printer.print_error(msg)
+  end
+
+
   #######
   private
   #######