src/backend/trojan_api.py

from flask import Flask, request, jsonify
from flask_sqlalchemy import SQLAlchemy
from flask_migrate import Migrate
import logging
import json
import os
from sqlalchemy.exc import SQLAlchemyError
import random
import subprocess
import time

app = Flask(__name__)

# Configure logging
logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')
logger = logging.getLogger(__name__)

# Database Configuration
app.config['SQLALCHEMY_DATABASE_URI'] = os.environ.get('DATABASE_URL', 'sqlite:///trojan.db')
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
db = SQLAlchemy(app)
migrate = Migrate(app, db)

# --- Data Models ---
class TrojanServer(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    server_ip = db.Column(db.String(255), nullable=False)
    server_port = db.Column(db.Integer, nullable=False)
    encryption_method = db.Column(db.String(255))
    deployment_method = db.Column(db.String(255))

class TrojanClient(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    config = db.Column(db.JSON, nullable=False)
    deployment_method = db.Column(db.String(255))

# --- API Endpoints ---
@app.route('/servers', methods=['GET', 'POST'])
def manage_trojan_servers():
    if request.method == 'GET':
        try:
            servers = TrojanServer.query.all()
            return jsonify([{'id': s.id, 'server_ip': s.server_ip, 'server_port': s.server_port, 'encryption_method': s.encryption_method, 'deployment_method': s.deployment_method} for s in servers])
        except SQLAlchemyError as e:
            logger.error(f"Database error listing servers: {str(e)}")
            return jsonify({'message': 'Error listing trojan servers', 'error': str(e)}), 500
    elif request.method == 'POST':
        data = request.get_json()
        if not data or 'server_ip' not in data or 'server_port' not in data or 'deployment_method' not in data:
            logger.error("Invalid input for creating server")
            return jsonify({'message': 'Invalid input for creating server'}), 400
        try:
            new_server = TrojanServer(server_ip=data['server_ip'], server_port=data['server_port'], encryption_method=data.get('encryption_method'), deployment_method=data['deployment_method'])
            db.session.add(new_server)
            db.session.commit()
            logger.info(f"Created new trojan server: {new_server.server_ip}:{new_server.server_port}")
            return jsonify({'message': 'Trojan server created successfully', 'id': new_server.id}), 201
        except SQLAlchemyError as e:
            db.session.rollback()
            logger.error(f"Database error creating server: {str(e)}")
            return jsonify({'message': 'Error creating trojan server', 'error': str(e)}), 500

@app.route('/clients', methods=['GET', 'POST'])
def manage_trojan_clients():
    if request.method == 'GET':
        try:
            clients = TrojanClient.query.all()
            return jsonify([{'id': c.id, 'config': c.config, 'deployment_method': c.deployment_method} for c in clients])
        except SQLAlchemyError as e:
            logger.error(f"Database error listing clients: {str(e)}")
            return jsonify({'message': 'Error listing trojan clients', 'error': str(e)}), 500
    elif request.method == 'POST':
        data = request.get_json()
        if not data or 'config' not in data or 'deployment_method' not in data:
            logger.error("Invalid input for creating client")
            return jsonify({'message': 'Invalid input for creating client'}), 400
        try:
            new_client = TrojanClient(config=data['config'], deployment_method=data['deployment_method'])
            db.session.add(new_client)
            db.session.commit()
            logger.info(f"Created new trojan client: {new_client.id}")
            return jsonify({'message': 'Trojan client created successfully', 'id': new_client.id}), 201
        except SQLAlchemyError as e:
            db.session.rollback()
            logger.error(f"Database error creating client: {str(e)}")
            return jsonify({'message': 'Error creating trojan client', 'error': str(e)}), 500

@app.route('/generate', methods=['POST'])
def generate_trojan_config_api():
    data = request.get_json()
    goal = data.get('goal')
    constraints = data.get('constraints', {})

    if not goal:
        logger.error("AI goal is required")
        return jsonify({'message': 'AI goal is required'}), 400

    try:
        # Placeholder for AI logic (replace with actual AI integration)
        logger.info(f"Generating trojan config with AI. Goal: {goal}, Constraints: {constraints}")
        ai_config = generate_trojan_config(goal, constraints)
        logger.info(f"AI generated config: {ai_config}")
        return jsonify(ai_config)
    except Exception as e:
        logger.error(f"Error generating trojan config with AI: {str(e)}")
        return jsonify({'message': 'Error generating trojan config with AI', 'error': str(e)}), 500

@app.route('/deploy/<int:trojan_id>', methods=['POST'])
def deploy_trojan_api(trojan_id):
    try:
        # Placeholder for deployment logic (replace with actual deployment)
        logger.info(f"Deploying trojan with ID: {trojan_id}")
        deployment_feedback = deploy_trojan(trojan_id)
        logger.info(f"Trojan {trojan_id} deployed successfully.")
        return jsonify({'message': 'Trojan deployed successfully', 'feedback': deployment_feedback})
    except subprocess.CalledProcessError as e:
        logger.error(f"Subprocess error deploying trojan: {str(e)}")
        return jsonify({'message': f'Subprocess error deploying trojan: {str(e)}', 'error': str(e)}), 500
    except Exception as e:
        logger.error(f"Error deploying trojan: {str(e)}")
        return jsonify({'message': f'Error deploying trojan: {str(e)}', 'error': str(e)}), 500

def generate_trojan_config(goal, constraints):
    """
    AI-driven trojan configuration generation.
    """
    server_ip = f"192.168.{random.randint(1, 254)}.{random.randint(1, 254)}"
    server_port = random.randint(1024, 65535)
    encryption_methods = ['AES-256', 'ChaCha20', 'RSA']
    encryption_method = random.choice(encryption_methods)
    deployment_methods = ['ssh', 'powershell', 'manual']
    deployment_method = random.choice(deployment_methods)

    client_config = {
        'server_ip': server_ip,
        'server_port': server_port,
        'encryption_method': encryption_method,
        'custom_data': constraints,
        'trojan_version': '1.2.3',
        'os': 'windows',
        'arch': 'x64'
    }

    return {
        'server_ip': server_ip,
        'server_port': server_port,
        'encryption_method': encryption_method,
        'client_config': client_config,
        'deployment_method': deployment_method
    }

def deploy_trojan(trojan_id):
    """
    Deployment logic.
    """
    time.sleep(1)
    trojan = TrojanServer.query.get(trojan_id) or TrojanClient.query.get(trojan_id)
    if not trojan:
        return {'status': 'error', 'message': f'Trojan with ID {trojan_id} not found.'}
    
    deployment_method = trojan.deployment_method
    
    if isinstance(trojan, TrojanServer):
        target = f"{trojan.server_ip}:{trojan.server_port}"
    else:
        target = "client"
    
    if deployment_method == 'ssh':
        command = ['bash', 'deploy_ssh.sh', target, json.dumps(trojan.config) if hasattr(trojan, 'config') else '']
    elif deployment_method == 'powershell':
        command = ['powershell', 'deploy_powershell.ps1', target, json.dumps(trojan.config) if hasattr(trojan, 'config') else '']
    elif deployment_method == 'manual':
        command = ['echo', 'Manual deployment required for', target]
    else:
        return {'status': 'error', 'message': f'Invalid deployment method: {deployment_method}'}
    
    try:
        process = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
        stdout, stderr = process.communicate()
        if process.returncode == 0:
            feedback = {
                'status': 'success',
                'message': f'Trojan {trojan_id} deployed successfully using {deployment_method}.',
                'details': {
                    'stdout': stdout.decode('utf-8'),
                    'stderr': stderr.decode('utf-8')
                }
            }
        else:
            feedback = {
                'status': 'error',
                'message': f'Trojan {trojan_id} deployment failed using {deployment_method}.',
                'details': {
                    'stdout': stdout.decode('utf-8'),
                    'stderr': stderr.decode('utf-8')
                }
            }
    except subprocess.CalledProcessError as e:
        feedback = {
            'status': 'error',
            'message': f'Subprocess error deploying trojan {trojan_id}: {str(e)}',
            'details': {}
        }
    except Exception as e:
        feedback = {
            'status': 'error',
            'message': f'Error deploying trojan {trojan_id}: {str(e)}',
            'details': {}
        }
    return feedback

if __name__ == '__main__':
    with app.app_context():
        db.create_all()
    app.run(debug=True)