text: from builtins import object
  from lib.common import helpers
  
  class Module(object):
  
      def __init__(self, mainMenu, params=[]):
  
          # metadata info about the module, not modified during runtime
          self.info = {
              # name for the module that will appear in module menus
              'Name': 'Port Scanner.',
  
              # list of one or more authors for the module
              'Author': ['@424f424f'],
  
              # more verbose multi-line description of the module
              'Description': ('Simple Port Scanner.'),
  
              # True if the module needs to run in the background
              'Background' : True,
  
              # File extension to save the file as
              'OutputExtension' : None,
  
              # if the module needs administrative privileges
              'NeedsAdmin' : False,
  
              # True if the method doesn't touch disk/is reasonably opsec safe
              'OpsecSafe' : True,
  
              # the module language
              'Language' : 'python',
  
              # the minimum language version needed
              'MinLanguageVersion' : '2.6',
  
              # list of any references/other comments
              'Comments': ['CIDR Parser credits to http://bibing.us.es/proyectos/abreproy/12106/fichero/ARCHIVOS%252Fservidor_xmlrpc%252Fcidr.py']
          }
  
          # any options needed by the module, settable during runtime
          self.options = {
              # format:
              #   value_name : {description, required, default_value}
              'Agent' : {
                  # The 'Agent' option is the only one that MUST be in a module
                  'Description'   :   'Agent to execute module on.',
                  'Required'      :   True,
                  'Value'         :   ''
              },
              'Target' : {
                  # The 'Agent' option is the only one that MUST be in a module
                  'Description'   :   'Targets to scan in single, range 0-255 or CIDR format.',
                  'Required'      :   True,
                  'Value'         :   ''
              },
              'Port' : {
                  # The 'Agent' option is the only one that MUST be in a module
                  'Description'   :   'The port to scan for.',
                  'Required'      :   True,
                  'Value'         :   '8080'
              }
          }
  
          # save off a copy of the mainMenu object to access external functionality
          #   like listeners/agent handlers/etc.
          self.mainMenu = mainMenu
  
          # During instantiation, any settable option parameters
          #   are passed as an object set to the module and the
          #   options dictionary is automatically set. This is mostly
          #   in case options are passed on the command line
          if params:
              for param in params:
                  # parameter format is [Name, Value]
                  option, value = param
                  if option in self.options:
                      self.options[option]['Value'] = value
  
  
      def generate(self, obfuscate=False, obfuscationCommand=""):
          target = self.options['Target']['Value']
          port = self.options['Port']['Value']
          
  
          script = """
  import socket
  
  iplist = []
  
  
  def iprange(addressrange): # converts a ip range into a list
      first3octets = '.'.join(addressrange.split('-')[0].split('.')[:3]) + '.'
      for i in range(int(addressrange.split('-')[0].split('.')[3]),int(addressrange.split('-')[1])+1):
          iplist.append(first3octets+str(i))
      return iplist
  
  def ip2bin(ip):
      b = ""
      inQuads = ip.split(".")
      outQuads = 4
      for q in inQuads:
          if q != "":
              b += dec2bin(int(q),8)
              outQuads -= 1
      while outQuads > 0:
          b += "00000000"
          outQuads -= 1
      return b
  
  
  def dec2bin(n,d=None):
      s = ""
      while n>0:
          if n&1:
              s = "1"+s
          else:
              s = "0"+s
          n >>= 1
      if d is not None:
          while len(s)<d:
              s = "0"+s
      if s == "": s = "0"
      return s
  
  
  def bin2ip(b):
      ip = ""
      for i in range(0,len(b),8):
          ip += str(int(b[i:i+8],2))+"."
      return ip[:-1]
  
  
  def printCIDR(c):
      parts = c.split("/")
      baseIP = ip2bin(parts[0])
      subnet = int(parts[1])
  
      if subnet == 32:
          print bin2ip(baseIP)
  
      else:
          ipPrefix = baseIP[:-(32-subnet)]
          for i in range(2**(32-subnet)):
              iplist.append(bin2ip(ipPrefix+dec2bin(i, (32-subnet))))
          return
  
  
  def validateCIDRBlock(b):
  
      p = re.compile("^([0-9]{1,3}\.){0,3}[0-9]{1,3}(/[0-9]{1,2}){1}$")
      if not p.match(b):
          print "Error: Invalid CIDR format!"
          return False
  
      prefix, subnet = b.split("/")
  
      quads = prefix.split(".")
      for q in quads:
          if (int(q) < 0) or (int(q) > 255):
              print "Error: quad "+str(q)+" wrong size."
              return False
  
      if (int(subnet) < 1) or (int(subnet) > 32):
          print "Error: subnet "+str(subnet)+" wrong size."
          return False
  
      return True
  
  
  def portscan(target,port):
  
      try:  
          s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
          s.settimeout(0.1)
          s.connect((target, port))
      except Exception:
          failvar = 0
          print "Host {} {}/tcp closed".format(target, port)
      else:
          print "Host {} {}/tcp open".format(target, port)
      s.close()
  
  
  def main(target, port):
      
      if '/' in target:
          printCIDR(target)
          for ip in iplist:
              portscan(ip, port)
      elif '-' in target:
          iprange(target)
          for ip in iplist:
              portscan(ip, port)
      else:
          portscan(target, port)
  
  target = "%s"
  port = %s
  
  main(target, port)
  
  """ %(target, port)
  
          return script