web-parser-mcp/bin/server.js

🚀 MCP SERVER FIXED v3.7.9! Resolved import errors, middleware conflicts, type hints - NOW WORKING PERFECTLY!

#!/usr/bin/env node

const { spawn } = require('child_process');
const path = require('path');
const fs = require('fs');

function findPython() {
    // Try different Python command variations
    const pythonCommands = ['python3', 'python', 'py'];
    
    for (const cmd of pythonCommands) {
        try {
            const result = require('child_process').execSync(`${cmd} --version`, { stdio: 'pipe' });
            if (result.toString().includes('Python 3.')) {
                return cmd;
            }
        } catch (e) {
            // Command not found, try next
        }
    }
    
    console.error('Error: Python 3.x not found. Please install Python 3.x and ensure it\'s in your PATH.');
    process.exit(1);
}

function checkUvInstalled() {
    try {
        require('child_process').execSync('uv --version', { stdio: 'pipe' });
        return true;
    } catch (e) {
        return false;
    }
}

function main() {
    // Find the main.py file relative to this script
    const scriptDir = path.dirname(__filename);
    const projectDir = path.dirname(scriptDir);
    const mainPyPath = path.join(projectDir, 'main.py');
    
    if (!fs.existsSync(mainPyPath)) {
        console.error(`Error: main.py not found at ${mainPyPath}`);
        process.exit(1);
    }
    
    // Check if uv is available for better dependency management
    const hasUv = checkUvInstalled();
    
    let pythonCmd;
    let args;
    
    if (hasUv) {
        // Use uv to run the script with proper dependencies
        pythonCmd = 'uv';
        args = ['run', mainPyPath];
    } else {
        // Fallback to regular Python
        pythonCmd = findPython();
        args = [mainPyPath];
        
        console.warn('Warning: uv not found. Using system Python. Consider installing uv for better dependency management:');
        console.warn('  pip install uv');
        console.warn('  or visit: https://docs.astral.sh/uv/getting-started/installation/');
    }
    
    // Start the MCP server
    console.log('Starting Web Parser MCP Server...');
    console.log(`Using command: ${pythonCmd} ${args.join(' ')}`);
    
    const child = spawn(pythonCmd, args, {
        cwd: projectDir,
        stdio: 'inherit',
        shell: process.platform === 'win32'
    });
    
    child.on('error', (err) => {
        console.error('Failed to start server:', err.message);
        process.exit(1);
    });
    
    child.on('exit', (code, signal) => {
        if (signal) {
            console.log(`Server terminated by signal: ${signal}`);
        } else {
            console.log(`Server exited with code: ${code}`);
        }
        process.exit(code || 0);
    });
    
    // Handle graceful shutdown
    process.on('SIGINT', () => {
        console.log('Shutting down server...');
        child.kill('SIGINT');
    });
    
    process.on('SIGTERM', () => {
        console.log('Shutting down server...');
        child.kill('SIGTERM');
    });
}

if (require.main === module) {
    main();
}

module.exports = { main };