expose logs

packages/express/src/app.ts

@@ -22,6 +22,7 @@ import { prepareNote55 } from '../../vue/src/db/prepareNote55';
 import ENV from './utils/env';
 import morgan from 'morgan';
 import logger from './logger';
+import logsRouter from './routes/logs';
 
 process.on('unhandledRejection', (reason, promise) => {
   logger.error('Unhandled Rejection at:', promise, 'reason:', reason);
@@ -49,6 +50,7 @@ app.use(
   })
 );
 app.use(morgan('combined', { stream: { write: (message) => logger.info(message.trim()) } }));
+app.use('/logs', logsRouter);
 
 export interface VueClientRequest extends express.Request {
   body: ServerRequest;

packages/express/src/routes/logs.ts

@@ -0,0 +1,70 @@
+import express from 'express';
+import { promises as fs } from 'fs';
+import path from 'path';
+import { requestIsAdminAuthenticated } from '../couchdb/authentication';
+import logger from '../logger';
+import process from 'process';
+
+const router = express.Router();
+
+// Get list of available log files
+router.get('/', async (req, res) => {
+  const auth = await requestIsAdminAuthenticated(req);
+  if (!auth) {
+    res.status(401).json({ error: 'Unauthorized' });
+    return;
+  }
+
+  try {
+    const logsDir = path.join(process.cwd(), 'logs');
+    const files = await fs.readdir(logsDir);
+    res.json(files);
+  } catch (error) {
+    logger.error('Error reading logs directory:', error);
+    res.status(500).json({ error: 'Failed to retrieve log files' });
+  }
+});
+
+// Get contents of specific log file
+router.get('/:filename', async (req, res) => {
+  const auth = await requestIsAdminAuthenticated(req);
+  if (!auth) {
+    res.status(401).json({ error: 'Unauthorized' });
+    return;
+  }
+
+  try {
+    const filename = req.params.filename;
+    // Sanitize filename to prevent directory traversal
+    if (filename.includes('..') || !filename.match(/^[a-zA-Z0-9-_.]+$/)) {
+      res.status(400).json({ error: 'Invalid filename' });
+      return;
+    }
+
+    const logPath = path.join(process.cwd(), 'logs', filename);
+    const content = (await fs.readFile(logPath, 'utf-8')).toString();
+
+    // If the client requests JSON format
+    if (req.headers.accept === 'application/json') {
+      const lines = content
+        .split('\n')
+        .filter((line) => line.trim())
+        .map((line) => {
+          try {
+            return JSON.parse(line);
+          } catch {
+            return line;
+          }
+        });
+      res.json(lines);
+    } else {
+      // Return plain text by default
+      res.type('text/plain').send(content);
+    }
+  } catch (error) {
+    logger.error(`Error reading log file ${req.params.filename}:`, error);
+    res.status(500).json({ error: 'Failed to retrieve log file' });
+  }
+});
+
+export default router;