# frozen_string_literal: true

##
# This file is part of WhatWeb and may be subject to
# redistribution and commercial restrictions. Please see the WhatWeb
# web site for more information on licensing and terms of use.
# http://www.morningstarsecurity.com/research/whatweb
##
WhatWeb::Plugin.define "Django" do
  @author = "Brendan Coles <bcoles@gmail.com>" # 2012-02-27
  @version = "0.1"
  @description = "Django is a high-level Python Web framework that encourages rapid development and clean, pragmatic design."
  @website = "https://www.djangoproject.com/"

  # ShodanHQ results as at 2012-02-27 #
  # 878 for WSGIServer Python

  # Matches #
  @matches = [

    # HTTP Server
    { certainty: 25, search: "headers[server]", regexp: /^WSGIServer\/[^\s]+ Python\/[^\s]+$/ },

    # Debug message # source: django/views/debug.py
    { regexp: /<div id="explanation">[\s]+<p>[\s]+You're seeing this error because you have <code>DEBUG = True<\/code> in your[\s]+Django settings file/ },

    # 404 Page # Debug message # source: django/views/debug.py
    { url: "/doesnotexist123highwaytothedangerzone", string: /<p>[\s]+Using the URLconf defined in <code>([^\.^\s]+)\.urls<\/code>,[\s]+Django tried these URL patterns, in this order:/ },

    # Default Welcome Message # source: django/views/debug.py
    { regexp: '<meta name="robots" content="NONE,NOARCHIVE"><title>Welcome to Django</title>' },

    # Default Welcome Message # Project Name # source: django/views/debug.py
    { string: /<li>Start your first app by running <code>python ([^\/]+)\/manage\.py startapp \[appname\]<\/code>\.<\/li>/ },

    # /admin # Login Page
    { regexp: /<form action="\/admin\/[^"^>]*" method="post" id="login-form"><div style='display:none;'><input type='hidden' id='csrfmiddlewaretoken' name='csrfmiddlewaretoken' value='[a-f\d]{32}' \/><\/div>/ },

    # Login Page
    { certainty: 75, text: '<input type="hidden" name="this_is_the_login_form" value="1" />' },

  ]

  # Passive #
  def passive(target)
    m = []

    unless target.headers["set-cookie"].nil? || target.headers["set-cookie"].empty?

      # Extract cookie names
      target.headers["set-cookie"].split("\n").each do |cookie|
        m << { string: cookie.split("=")[0], certainty: 75 } if cookie =~ /csrftoken=/
      end

    end

    # Return passive match
    m
  end
end