fixed login helper function

spec/support/beef_test.rb

@@ -3,29 +3,51 @@
 # Browser Exploitation Framework (BeEF) - https://beefproject.com
 # See the file 'doc/COPYING' for copying permission
 #
-require 'test/unit'
-
+require 'selenium-webdriver'
+require 'spec_helper'
 require 'capybara'
 require 'capybara/rspec'
 Capybara.run_server = false # we need to run our own BeEF server
 
-require 'selenium-webdriver'
-
 class BeefTest
-  def self.save_screenshot(session)
-    Dir.mkdir(BEEF_TEST_DIR) unless File.directory?(BEEF_TEST_DIR)
-    session.driver.browser.save_screenshot(BEEF_TEST_DIR + Time.now.strftime('%Y-%m-%d--%H-%M-%S-%N') + '.png')
+  def self.save_screenshot(session, dir = nil)
+    outputDir = dir || BEEF_TEST_DIR
+    Dir.mkdir(outputDir) unless File.directory?(outputDir)
+    session.driver.browser.save_screenshot(outputDir + Time.now.strftime('%Y-%m-%d--%H-%M-%S-%N') + '.png')
   end
 
   def self.login(session = nil)
     session = Capybara::Session.new(:selenium_headless) if session.nil?
     session.visit(ATTACK_URL)
-    sleep 2.0
-    session.has_content?('BeEF Authentication')
-    session.fill_in 'user', with: BEEF_USER
-    session.fill_in 'pass', with: BEEF_PASSWD
-    session.click_button('Login')
-    sleep 10.0
+    
+    session.has_content?('Authentication', wait: 10)
+    save_screenshot(session)
+
+    # enter the credentials
+    session.execute_script("document.getElementById('pass').value = '#{CGI.escapeHTML(BEEF_PASSWD)}'\;")
+    session.execute_script("document.getElementById('user').value = '#{CGI.escapeHTML(BEEF_USER)}'\;")
+
+    # due to using JS there seems to be a race condition - this is a workaround
+    session.has_content?('beef', wait: 10)
+
+    # click the login button
+    login_script = <<-JAVASCRIPT
+      var loginButton;
+      var buttons = document.getElementsByTagName('button');
+      for (var i = 0; i < buttons.length; i++) {
+        if (buttons[i].textContent === 'Login') {
+          loginButton = buttons[i];
+          break;
+        }
+      }
+      if (loginButton) {
+        loginButton.click();
+      }
+    JAVASCRIPT
+    session.execute_script(login_script)
+
+    session.has_content?('Hooked Browsers', wait: 10)
+    save_screenshot(session)
 
     session
   end