Initial commit — OFApp client + server

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-12 20:07:06 -06:00
commit c60de19348
43 changed files with 8679 additions and 0 deletions
--- a/server/hls.js
+++ b/server/hls.js
@@ -0,0 +1,116 @@
+import { Router } from 'express';
+import { join } from 'path';
+import { existsSync } from 'fs';
+import { execFile, spawn } from 'child_process';
+import { promisify } from 'util';
+import { getSetting } from './db.js';
+
+const execFileAsync = promisify(execFile);
+const router = Router();
+const MEDIA_PATH = process.env.MEDIA_PATH || './data/media';
+const SEGMENT_DURATION = 10;
+
+function isHlsEnabled() {
+  return (getSetting('hls_enabled') || process.env.HLS_ENABLED) === 'true';
+}
+
+function validatePath(folder, filename) {
+  if (folder.includes('..') || filename.includes('..')) return null;
+  if (folder.includes('/') || folder.includes('\\')) return null;
+  if (filename.includes('/') || filename.includes('\\')) return null;
+  const filePath = join(MEDIA_PATH, folder, filename);
+  if (!existsSync(filePath)) return null;
+  return filePath;
+}
+
+// GET /api/hls/:folder/:filename/master.m3u8
+router.get('/api/hls/:folder/:filename/master.m3u8', async (req, res) => {
+  if (!isHlsEnabled()) {
+    return res.status(404).json({ error: 'HLS not enabled' });
+  }
+
+  const { folder, filename } = req.params;
+  const filePath = validatePath(folder, filename);
+  if (!filePath) {
+    return res.status(400).json({ error: 'Invalid path' });
+  }
+
+  try {
+    const { stdout } = await execFileAsync('ffprobe', [
+      '-v', 'error',
+      '-show_entries', 'format=duration',
+      '-of', 'csv=p=0',
+      filePath,
+    ]);
+
+    const duration = parseFloat(stdout.trim());
+    if (isNaN(duration) || duration <= 0) {
+      return res.status(500).json({ error: 'Could not determine video duration' });
+    }
+
+    const segmentCount = Math.ceil(duration / SEGMENT_DURATION);
+    let playlist = '#EXTM3U\n#EXT-X-VERSION:3\n';
+    playlist += `#EXT-X-TARGETDURATION:${SEGMENT_DURATION}\n`;
+    playlist += '#EXT-X-MEDIA-SEQUENCE:0\n';
+
+    for (let i = 0; i < segmentCount; i++) {
+      const remaining = duration - i * SEGMENT_DURATION;
+      const segDuration = Math.min(SEGMENT_DURATION, remaining);
+      playlist += `#EXTINF:${segDuration.toFixed(3)},\n`;
+      playlist += `segment-${i}.ts\n`;
+    }
+
+    playlist += '#EXT-X-ENDLIST\n';
+
+    res.setHeader('Content-Type', 'application/vnd.apple.mpegurl');
+    res.send(playlist);
+  } catch (err) {
+    console.error('[hls] ffprobe error:', err.message);
+    res.status(500).json({ error: 'Failed to probe video' });
+  }
+});
+
+// GET /api/hls/:folder/:filename/segment-:index.ts
+router.get('/api/hls/:folder/:filename/segment-:index.ts', (req, res) => {
+  if (!isHlsEnabled()) {
+    return res.status(404).json({ error: 'HLS not enabled' });
+  }
+
+  const { folder, filename, index } = req.params;
+  const filePath = validatePath(folder, filename);
+  if (!filePath) {
+    return res.status(400).json({ error: 'Invalid path' });
+  }
+
+  const segIndex = parseInt(index, 10);
+  if (isNaN(segIndex) || segIndex < 0) {
+    return res.status(400).json({ error: 'Invalid segment index' });
+  }
+
+  const offset = segIndex * SEGMENT_DURATION;
+
+  const ffmpeg = spawn('ffmpeg', [
+    '-ss', String(offset),
+    '-i', filePath,
+    '-t', String(SEGMENT_DURATION),
+    '-c', 'copy',
+    '-f', 'mpegts',
+    'pipe:1',
+  ], { stdio: ['ignore', 'pipe', 'ignore'] });
+
+  res.setHeader('Content-Type', 'video/MP2T');
+  ffmpeg.stdout.pipe(res);
+
+  req.on('close', () => {
+    ffmpeg.kill('SIGKILL');
+  });
+
+  ffmpeg.on('error', (err) => {
+    console.error('[hls] ffmpeg error:', err.message);
+    if (!res.headersSent) {
+      res.status(500).json({ error: 'Transcoding failed' });
+    }
+  });
+});
+
+export default router;