from lib.common import helpers

class Module:

    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': 'Translate a host name to IPv4 address format using a remote agent.',

            # list of one or more authors for the module
            'Author': ['@TweekFawkes'],

            # more verbose multi-line description of the module
            'Description': ('Uses Python\'s socket.gethostbyname("example.com") function to resolve host names on a remote agent.'),

            # 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': ['none']
        }

        # 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'   :   'FQDN, domain name, or hostname to lookup using the remote target.',
                'Required'      :   True,
                'Value'         :   ''
            }
        }

        # 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:
                option, value = param
                if option in self.options:
                    self.options[option]['Value'] = value


    def generate(self, obfuscate=False, obfuscationCommand=""):
        target = self.options['Target']['Value']
        

        script = """
import socket

def main(target):
    return_Str = ''
    try:
        return_Str = str(socket.gethostbyname(target))
        print "{} resolved to {} !".format(target, return_Str)
    except socket.error:
        print "{} failed to resolve :(".format(target)

target = "%s"

main(target)

""" %(target)

        return script
