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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 | #!/usr/bin/env node import http from 'node:http'; import fs from 'node:fs/promises'; import path from 'node:path'; import { fileURLToPath } from 'node:url'; import { spawn } from 'node:child_process'; import { createRequire } from 'node:module'; // Lazy imports for optional dev-only deps (ws, chokidar) let WebSocketServer = null; let chokidar = null; const req = createRequire(import.meta.url); const __filename = fileURLToPath(import.meta.url); const __dirname = path.dirname(__filename); const repoRoot = path.resolve(__dirname, '..'); const DIST_DIR = path.join(repoRoot, 'website', 'dist'); const SRC_DIR = path.join(repoRoot, 'src'); const EXAMPLES_DIR = path.join(repoRoot, 'examples'); const WEBSITE_SRC_DIR = path.join(repoRoot, 'website', 'src'); const PORT = Number(process.env.PORT || 8081); const HOST = process.env.HOST || '127.0.0.1'; const MIME = { '.html': 'text/html; charset=UTF-8', '.css': 'text/css; charset=UTF-8', '.js': 'application/javascript; charset=UTF-8', '.mjs': 'application/javascript; charset=UTF-8', '.json': 'application/json; charset=UTF-8', '.svg': 'image/svg+xml', '.png': 'image/png', '.jpg': 'image/jpeg', '.jpeg': 'image/jpeg', '.gif': 'image/gif', '.webp': 'image/webp', '.ico': 'image/x-icon', '.map': 'application/json; charset=UTF-8' }; function safeJoin(base, target) { const sanitized = path.normalize(target).replace(/^\/+/, ''); const p = path.join(base, sanitized); if (!p.startsWith(base)) return base; // prevent path traversal return p; } async function exists(p) { try { await fs.access(p); return true; } catch { return false; } } function transformImports(code, repoRoot) { // Transform relative imports to absolute file URLs let transformedCode = code; // Common import patterns to transform const importTransforms = [ // From packages (most common in examples) { from: /from ['"]\.\.\/packages\/([^'"]+)['"]/g, to: (match, packagePath) => `from 'file://${path.join(repoRoot, 'packages', packagePath)}'` }, // From src directory { from: /from ['"]\.\.\/src\/([^'"]+)['"]/g, to: (match, srcPath) => `from 'file://${path.join(repoRoot, 'src', srcPath)}'` }, // Direct core imports { from: /from ['"]@coherentjs\/core['"]/g, to: () => `from 'file://${path.join(repoRoot, 'packages/core/src/index.js')}'` }, // Direct imports from current directory { from: /from ['"]\.\/([^'"]+)['"]/g, to: (match, localPath) => `from 'file://${path.join(repoRoot, 'examples', localPath)}'` } ]; // Apply all transformations for (const transform of importTransforms) { transformedCode = transformedCode.replace(transform.from, transform.to); } // Also handle dynamic imports const dynamicImportTransforms = [ { from: /import\(['"]\.\.\/packages\/([^'"]+)['"]\)/g, to: (match, packagePath) => `import('file://${path.join(repoRoot, 'packages', packagePath)}')` }, { from: /import\(['"]\.\.\/src\/([^'"]+)['"]\)/g, to: (match, srcPath) => `import('file://${path.join(repoRoot, 'src', srcPath)}')` } ]; for (const transform of dynamicImportTransforms) { transformedCode = transformedCode.replace(transform.from, transform.to); } return transformedCode; } function injectHMR(html) { try { // Only inject once if (html.includes('__coherent_hmr_initialized')) return html; let tags = '\n<script type="module" src="/__coherent/hmr.js"></script>\n'; // Also inject CodeMirror editor for playground pages if (html.includes('playground-container') || html.includes('editor-container')) { tags += '<script src="/codemirror-editor.js"></script>\n<script src="/playground.js"></script>\n'; } if (html.includes('</body>')) return html.replace('</body>', `${tags}</body>`); return html + tags; } catch { return html; } } async function handlePlaygroundRun(req, res) { try { if (req.method !== 'POST') { res.statusCode = 405; res.setHeader('Content-Type', 'application/json'); res.end(JSON.stringify({ error: 'Method Not Allowed' })); return; } let body = ''; for await (const chunk of req) body += chunk; let data = {}; try { data = JSON.parse(body || '{}'); } catch {} const runtime = String(data.runtime || 'node'); const userCode = String(data.code || ''); // Minimal validation and limits const MAX_CODE = 50_000; // 50KB if (userCode.length > MAX_CODE) { res.statusCode = 400; res.setHeader('Content-Type', 'application/json'); res.end(JSON.stringify({ error: 'Code too large' })); return; } const tmpDir = path.join(repoRoot, '.playground-tmp'); await fs.mkdir(tmpDir, { recursive: true }); // Transform relative imports in user code to absolute file URLs const defaultExample = `// Example: Hello World with Coherent.js const { renderToString } = await import('file://${path.join(repoRoot, 'packages/core/src/index.js')}'); const html = renderToString({ div: { text: 'Hello, Coherent.js! š' } }); console.log(html);`; const processedUserCode = transformImports(userCode.trim() || defaultExample, repoRoot); // Extract imports from the code and move them to top level // Convert exports to const declarations for execution context const lines = processedUserCode.split('\n'); const importLines = []; const executableLines = []; for (const line of lines) { const trimmed = line.trim(); if (trimmed.startsWith('import ')) { importLines.push(line); } else if (trimmed.startsWith('export const ') || trimmed.startsWith('export function ') || trimmed.startsWith('export class ')) { // Convert export to regular declaration for execution executableLines.push(line.replace(/^export /, '')); } else if (trimmed.startsWith('export default ')) { // Convert export default to regular const declaration executableLines.push(line.replace('export default ', 'const __default = ')); } else if (trimmed.startsWith('export ')) { // Handle other export patterns - convert to regular statements executableLines.push(line.replace(/^export /, '')); } else { executableLines.push(line); } } // Check if code has explicit console.log or if we need to auto-render const hasConsoleLog = executableLines.some(line => line.includes('console.log')); const hasDefaultExport = executableLines.some(line => line.includes('const __default =')); let wrapperCode = executableLines.join('\n'); // If no console.log and has default export, auto-render the default export with scoping if (!hasConsoleLog && hasDefaultExport) { wrapperCode += `\n\n// Auto-render default export with CSS scoping const { renderScopedComponent } = await import('file://${path.join(repoRoot, 'packages/core/src/index.js')}'); if (__default && typeof __default === 'object') { const html = renderScopedComponent(__default); console.log(html); console.log('\\n<!-- CSS scoped to prevent playground conflicts -->'); }`; } const fullCode = `// Auto-generated by Playground ${importLines.join('\n')} (async () => { ${wrapperCode} })();`; const fileName = `play-${ Date.now() }-${ Math.random().toString(36).slice(2) }.mjs`; const filePath = path.join(tmpDir, fileName); await fs.writeFile(filePath, fullCode, 'utf8'); let cmd = 'node'; let args = [filePath]; if (runtime === 'deno') { cmd = 'deno'; args = ['run', '--quiet', '--allow-read', filePath]; } else if (runtime === 'bun') { cmd = 'bun'; args = [filePath]; } const child = spawn(cmd, args, { cwd: repoRoot }); let stdout = ''; let stderr = ''; const MAX_OUTPUT = 200_000; // 200KB cap child.stdout.on('data', (d) => { if ((stdout.length + d.length) < MAX_OUTPUT) stdout += d.toString(); }); child.stderr.on('data', (d) => { if ((stderr.length + d.length) < MAX_OUTPUT) stderr += d.toString(); }); const timeoutMs = Number(process.env.PLAYGROUND_TIMEOUT_MS || 5000); const killer = setTimeout(() => { try { child.kill('SIGKILL'); } catch {} }, timeoutMs); child.on('exit', async (code) => { clearTimeout(killer); // Debug: Log the generated file content if there's an error if (code !== 0) { try { const debugContent = await fs.readFile(filePath, 'utf8'); console.error('Generated file content:'); console.error(debugContent); } catch (e) { console.error('Could not read generated file for debugging'); } } // best effort cleanup try { await fs.unlink(filePath); } catch {} res.statusCode = 200; res.setHeader('Content-Type', 'application/json; charset=UTF-8'); res.end(JSON.stringify({ code, stdout, stderr, runtime })); }); } catch (e) { res.statusCode = 500; res.setHeader('Content-Type', 'application/json; charset=UTF-8'); res.end(JSON.stringify({ error: 'Playground execution failed', details: String(e && e.message || e) })); } } const server = http.createServer(async (req, res) => { try { let urlPath = decodeURIComponent((req.url || '/').split('?')[0]); if (urlPath === '') urlPath = '/'; // Playground execution API if (urlPath === '/__playground/run') { console.log('šÆ Playground request received:', req.method); await handlePlaygroundRun(req, res); return; } // Serve example files for playground (only for .js files, not the /examples page) if (urlPath.startsWith('/examples/') && urlPath.endsWith('.js')) { const exampleFile = urlPath.replace('/examples/', ''); // Security check - prevent path traversal if (exampleFile.includes('..') || exampleFile.includes('/') || exampleFile.includes('\\')) { res.statusCode = 400; res.setHeader('Content-Type', 'text/plain; charset=UTF-8'); res.end('Invalid filename'); return; } const examplePath = path.join(EXAMPLES_DIR, exampleFile); try { const content = await fs.readFile(examplePath, 'utf-8'); res.statusCode = 200; res.setHeader('Content-Type', 'text/plain; charset=UTF-8'); res.end(content); return; } catch (error) { if (error.code === 'ENOENT') { res.statusCode = 404; res.setHeader('Content-Type', 'text/plain; charset=UTF-8'); res.end('Example file not found'); } else { res.statusCode = 500; res.setHeader('Content-Type', 'text/plain; charset=UTF-8'); res.end('Error reading example file'); } return; } } // API endpoint for example files (alternative route) if (urlPath.startsWith('/api/example/')) { const exampleFile = urlPath.replace('/api/example/', ''); // Security check - prevent path traversal if (exampleFile.includes('..') || exampleFile.includes('/') || exampleFile.includes('\\')) { res.statusCode = 400; res.setHeader('Content-Type', 'application/json'); res.end(JSON.stringify({ error: 'Invalid filename' })); return; } const examplePath = path.join(EXAMPLES_DIR, exampleFile); try { const content = await fs.readFile(examplePath, 'utf-8'); res.statusCode = 200; res.setHeader('Content-Type', 'text/plain; charset=UTF-8'); res.end(content); return; } catch (error) { if (error.code === 'ENOENT') { res.statusCode = 404; res.setHeader('Content-Type', 'application/json'); res.end(JSON.stringify({ error: 'Example file not found' })); } else { res.statusCode = 500; res.setHeader('Content-Type', 'application/json'); res.end(JSON.stringify({ error: 'Error reading example file' })); } return; } } // Serve HMR client from source during dev if (urlPath === '/__coherent/hmr.js') { const hmrPath = path.join(repoRoot, 'packages', 'client', 'src', 'hmr.js'); try { const buf = await fs.readFile(hmrPath); res.statusCode = 200; res.setHeader('Content-Type', 'application/javascript; charset=UTF-8'); res.end(buf); return; } catch { // Fallback: serve empty HMR script to prevent 404 errors res.statusCode = 200; res.setHeader('Content-Type', 'application/javascript; charset=UTF-8'); res.end(`// HMR client fallback console.log('HMR client loaded (fallback mode)'); // This prevents 404 errors when HMR files are missing `); return; } } let filePath = safeJoin(DIST_DIR, urlPath); let statIsDir = false; try { const s = await fs.stat(filePath); statIsDir = s.isDirectory(); } catch {} if (statIsDir) { // Append trailing slash and serve index.html if (!urlPath.endsWith('/')) { res.statusCode = 301; res.setHeader('Location', `${urlPath }/`); res.end(); return; } filePath = path.join(filePath, 'index.html'); } else { // If path has no extension and no direct file, try directory index if (!path.extname(filePath)) { const asDir = `${filePath }/`; if (await exists(asDir)) { res.statusCode = 301; res.setHeader('Location', `${urlPath }/`); res.end(); return; } const indexHtml = path.join(filePath, 'index.html'); if (await exists(indexHtml)) filePath = indexHtml; } } if (!(await exists(filePath))) { res.statusCode = 404; res.setHeader('Content-Type', 'text/plain; charset=UTF-8'); res.end('Not Found'); return; } const ext = path.extname(filePath).toLowerCase(); const type = MIME[ext] || 'application/octet-stream'; const content = await fs.readFile(filePath); res.statusCode = 200; res.setHeader('Content-Type', type); if (type.startsWith('text/html')) { res.end(injectHMR(content.toString('utf8'))); } else { res.end(content); } } catch (_err) { res.statusCode = 500; res.setHeader('Content-Type', 'text/plain; charset=UTF-8'); res.end('Internal Server Error'); } }); // Start server first; then attach WS and watcher server.listen(PORT, HOST, () => { console.log(`Serving website from ${DIST_DIR}`); console.log(`ā http://${HOST}:${PORT}/`); // Dynamically require dev-only dependencies if available try { WebSocketServer = req('ws').WebSocketServer; } catch {} try { chokidar = req('chokidar'); } catch {} if (!WebSocketServer || !chokidar) { console.log('HMR disabled (install dev deps to enable): pnpm add -D ws chokidar'); return; } const wss = new WebSocketServer({ server }); const clients = new Set(); wss.on('connection', (ws) => { clients.add(ws); ws.on('close', () => clients.delete(ws)); ws.send(JSON.stringify({ type: 'connected' })); }); let building = false; let pending = false; function triggerBuild(reason, file) { if (building) { pending = true; return; } building = true; const args = ['run', 'website:build']; console.log(`ā»ļø Change detected (${reason}): ${file || ''}\nšØ Rebuilding...`); const proc = spawn('pnpm', args, { stdio: 'inherit' }); proc.on('exit', (code) => { building = false; if (code === 0) { // Notify clients a full reload is safest for now for (const ws of clients) { try { ws.send(JSON.stringify({ type: 'reload' })); } catch {} } console.log('ā Rebuilt. Notified clients to reload.'); if (pending) { pending = false; // debounce chain setTimeout(() => triggerBuild('pending'), 50); } } else { console.error('ā Rebuild failed'); } }); } // Watch source and content; ignore dist to prevent loops const watcher = chokidar.watch([ SRC_DIR, EXAMPLES_DIR, WEBSITE_SRC_DIR, path.join(repoRoot, 'docs') ], { ignored: [DIST_DIR, path.join(repoRoot, 'node_modules'), '**/.git/**'], ignoreInitial: true, }); watcher.on('add', (f) => triggerBuild('add', f)); watcher.on('change', (f) => triggerBuild('change', f)); watcher.on('unlink', (f) => triggerBuild('unlink', f)); }); |