feat: Add initial IPTV player with web-based playback and streaming API.

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Michael committed 2025-12-15 13:01:24 +01:00
1 parent e3f5bc6e66
commit f290f5a7fc
7 files changed
+354 -1440

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-289
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@@ -1,289 +0,0 @@
import 'dart:io';
import 'dart:async';
import 'dart:convert';
import 'package:shelf/shelf.dart';
/// Active FFmpeg processes and their temp directories
final Map<String, Process> _activeStreams = {};
final Map<String, Directory> _streamDirs = {};
/// Create handler for HLS file serving
///
/// Serves playlist.m3u8 and segment files created by FFmpeg
Handler createHlsFileHandler() {
return (Request request) async {
final path = request.url.path;
// Only handle /api/hls/* requests
if (!path.startsWith('api/hls/')) {
return Response.notFound('Not found');
}
try {
// Parse path: /api/hls/{streamId}/{filename}
final pathParts = path.split('/');
if (pathParts.length < 4) {
return Response.badRequest(body: 'Invalid HLS path');
}
final streamId = pathParts[2];
final filename = pathParts[3];
// Get temp directory for this stream
final tempDir = Directory('${Directory.systemTemp.path}/hls_$streamId');
if (!await tempDir.exists()) {
return Response.notFound('Stream not found');
}
// Construct file path
final filePath = '${tempDir.path}/$filename';
final file = File(filePath);
if (!await file.exists()) {
return Response.notFound('File not found');
}
// Determine content type
String contentType;
if (filename.endsWith('.m3u8')) {
contentType = 'application/vnd.apple.mpegurl';
} else if (filename.endsWith('.ts')) {
contentType = 'video/MP2T';
} else {
contentType = 'application/octet-stream';
}
// Read and return file
final fileBytes = await file.readAsBytes();
return Response.ok(
fileBytes,
headers: {
'Content-Type': contentType,
'Access-Control-Allow-Origin': '*',
'Cache-Control': 'no-cache',
'Connection': 'keep-alive',
},
);
} catch (e, stackTrace) {
print('HLS file serving error: $e');
print(stackTrace);
return Response.internalServerError(
body: jsonEncode({'error': 'File serving error', 'message': e.toString()}),
headers: {'content-type': 'application/json'},
);
}
};
}
/// Create handler for FFmpeg HLS transcoding
///
/// Starts FFmpeg process that creates HLS segments for VOD
Handler createStreamInitHandler() {
return (Request request) async {
final path = request.url.path;
// Only handle /api/stream/* requests
if (!path.startsWith('api/stream/')) {
return Response.notFound('Not found');
}
try {
// Extract stream ID
final pathParts = path.split('/');
if (pathParts.length < 3) {
return Response.badRequest(body: 'Invalid stream path');
}
final streamId = pathParts[2];
// Get parameters
final iptvUrl = request.url.queryParameters['url'];
final quality = request.url.queryParameters['quality'] ?? 'high';
if (iptvUrl == null || iptvUrl.isEmpty) {
return Response.badRequest(body: 'Missing url parameter');
}
print('Starting HLS Stream for ID: $streamId');
print('Source: $iptvUrl');
// Create temp directory for HLS segments
final tempDir = Directory('${Directory.systemTemp.path}/hls_$streamId');
if (await tempDir.exists()) {
await tempDir.delete(recursive: true);
}
await tempDir.create(recursive: true);
_streamDirs[streamId] = tempDir;
final playlistPath = '${tempDir.path}/playlist.m3u8';
// FFmpeg HLS arguments
final ffmpegArgs = <String>[
'-hide_banner',
'-loglevel', 'error',
'-user_agent', 'VLC/3.0.18 LibVLC/3.0.18',
'-headers', 'Accept: */*\r\nConnection: keep-alive\r\n',
// Input resilience
'-reconnect', '1',
'-reconnect_streamed', '1',
'-reconnect_delay_max', '10',
'-rw_timeout', '15000000',
'-analyzeduration', '10000000',
'-probesize', '5000000',
'-i', iptvUrl,
// Output format: HLS
'-f', 'hls',
'-hls_time', '4',
'-hls_list_size', '0', // Keep all segments in playlist
'-hls_playlist_type', 'event', // Allow appending new segments, keep old ones
'-hls_segment_type', 'mpegts',
'-hls_segment_filename', '${tempDir.path}/segment_%03d.ts',
];
// Video encoding: Always transcode for HLS timestamp compatibility
// Using ultrafast preset for Live TV to minimize latency
final isLiveStream = iptvUrl.endsWith('.ts') || iptvUrl.contains('/live/');
if (isLiveStream) {
// LIVE TV: Transcode to H.264 for browser compatibility
// Source may be HEVC/H.265 which browsers don't support
// Using superfast preset for minimal CPU usage
ffmpegArgs.addAll([
'-c:v', 'libx264',
'-preset', 'superfast', // Fast encoding to prevent buffering
'-tune', 'zerolatency', // Minimize latency
'-profile:v', 'baseline', // Maximum browser compatibility
'-level', '3.1',
'-pix_fmt', 'yuv420p',
'-g', '30', // Keyframe every second at 30fps
'-b:v', '2500k', // 2.5Mbps - balance quality/speed
'-maxrate', '3000k',
'-bufsize', '5000k',
]);
} else {
// VOD: Use ultrafast preset to prevent buffer stalls
// FFmpeg must transcode FASTER than realtime to keep the buffer full
ffmpegArgs.addAll([
'-c:v', 'libx264',
'-preset', 'ultrafast', // CRITICAL: Fast encoding to prevent buffer stalls
'-tune', 'fastdecode', // Optimize for fast decoding in browser
'-profile:v', 'main', // Good compatibility, better than baseline for VOD
'-level', '4.0',
'-pix_fmt', 'yuv420p',
'-g', '48', // Keyframe every 2s at 24fps
'-threads', '0', // Use all available CPU cores
]);
if (quality == 'low') {
ffmpegArgs.addAll([
'-vf', 'scale=-2:480',
'-b:v', '1000k',
'-maxrate', '1200k',
'-bufsize', '2000k',
]);
} else {
// High quality but still fast enough to prevent stalls
ffmpegArgs.addAll([
'-b:v', '2500k', // Reduced from 6000k for faster encoding
'-maxrate', '3000k', // Reduced from 8000k
'-bufsize', '5000k', // Reduced from 12000k
'-crf', '23', // Slightly lower quality but much faster
]);
}
}
// Audio: Always transcode to AAC
ffmpegArgs.addAll([
'-c:a', 'aac',
'-b:a', '192k',
'-ar', '48000',
'-ac', '2',
]);
ffmpegArgs.add(playlistPath);
// Start FFmpeg process
final process = await Process.start('ffmpeg', ffmpegArgs);
_activeStreams[streamId] = process;
// Log stderr
process.stderr.transform(utf8.decoder).listen((data) {
if (data.contains('Error') || data.contains('error')) {
print('FFmpeg Error [$streamId]: $data');
}
});
// Wait for playlist creation
var attempts = 0;
while (!await File(playlistPath).exists() && attempts < 50) {
await Future.delayed(const Duration(milliseconds: 100));
attempts++;
}
if (!await File(playlistPath).exists()) {
process.kill();
_activeStreams.remove(streamId);
_streamDirs.remove(streamId);
await tempDir.delete(recursive: true);
return Response.internalServerError(
body: 'FFmpeg failed to create playlist',
);
}
// CRITICAL: Wait for first segment to exist AND HAVE DATA > 5MB to be safe?
// No, 10KB is enough for header + some data
attempts = 0;
final firstSegment = File('${tempDir.path}/segment_000.ts');
while (attempts < 100) {
if (await firstSegment.exists()) {
final len = await firstSegment.length();
if (len > 10240) break; // Wait for > 10KB
}
await Future.delayed(const Duration(milliseconds: 100));
attempts++;
}
if (!await firstSegment.exists()) {
print('Warning: First segment not created yet for $streamId');
} else {
print('First segment ready for $streamId (${await firstSegment.length()} bytes)');
}
print('HLS playlist created for $streamId');
// Cleanup on process exit
process.exitCode.then((_) {
print('FFmpeg finished for $streamId');
_activeStreams.remove(streamId);
final dir = _streamDirs.remove(streamId);
dir?.delete(recursive: true).catchError((e) {
print('Cleanup error for $streamId: $e');
});
});
// Return playlist URL
return Response.ok(
jsonEncode({'playlist': '/api/hls/$streamId/playlist.m3u8'}),
headers: {
'Content-Type': 'application/json',
'Access-Control-Allow-Origin': '*',
},
);
} catch (e, stackTrace) {
print('Stream init error: $e');
print(stackTrace);
return Response.internalServerError(
body: jsonEncode({'error': e.toString()}),
headers: {'content-type': 'application/json'},
);
}
};
}
+225
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@@ -0,0 +1,225 @@
import 'dart:async';
import 'dart:convert';
import 'dart:io';
import 'dart:math';
import 'package:shelf/shelf.dart';
import 'package:shelf_router/shelf_router.dart';
import '../../lib/core/models/playlist_config.dart';
/// Active FFmpeg processes for VOD transcoding
final Map<String, Process> _vodProcesses = {};
/// Directory for temporary HLS segments
final Directory _hlsTempDir = Directory('/tmp/hls_vod');
/// Initialize streaming subsystem
Future<void> initStreaming() async {
if (!_hlsTempDir.existsSync()) {
await _hlsTempDir.create(recursive: true);
}
}
/// Helper to get current playlist configuration (mocked for now, implies single user)
/// In a real scenario, this should come from the request session/context
PlaylistConfig? _getCurrentPlaylist(Request request) {
// TODO: Retrieve from DB/Session based on Auth
// For now, we assume the frontend sends enough info or we look up the active one
return null; // Implemented later in server.dart injection
}
// ==========================================
// 1. LIVE TV HANDLER (Direct MPEG-TS Proxy)
// ==========================================
Handler createLiveStreamHandler(Future<PlaylistConfig?> Function(Request) getPlaylist) {
final router = Router();
// Route: /api/live/{streamId}.ts
router.get('/<streamId>.ts', (Request request, String streamId) async {
final playlist = await getPlaylist(request);
if (playlist == null) {
return Response.internalServerError(body: 'No playlist configured');
}
final targetUrl = Uri.parse('${playlist.dns}/live/${playlist.username}/${playlist.password}/$streamId.ts');
print('[Live] Proxying: $targetUrl');
try {
final client = HttpClient();
client.connectionTimeout = const Duration(seconds: 10); // Connection timeout
client.idleTimeout = const Duration(hours: 6); // Keep alive long time
final req = await client.getUrl(targetUrl);
req.headers.set('User-Agent', 'VLC/3.0.18 LibVLC/3.0.18'); // Simulate VLC
req.headers.set('Connection', 'keep-alive');
final response = await req.close();
if (response.statusCode != 200) {
return Response(response.statusCode, body: 'Upstream error: ${response.statusCode}');
}
print('[Live] Connected to upstream. Streaming...');
// Pipe the response stream to the client
// We use a StreamController to handle cancellation
final controller = StreamController<List<int>>();
response.listen(
(data) => controller.add(data),
onError: (e) => controller.addError(e),
onDone: () => controller.close(),
cancelOnError: true,
);
// Cleanup when client disconnects
controller.onCancel = () {
print('[Live] Client disconnected: $streamId');
// response.detachSocket() if possible, or just let GC handle it
};
return Response.ok(
controller.stream,
headers: {
'Content-Type': 'video/mp2t',
'Cache-Control': 'no-cache',
'Connection': 'keep-alive',
'Access-Control-Allow-Origin': '*',
},
);
} catch (e) {
print('[Live] Error: $e');
return Response.internalServerError(body: 'Live stream error: $e');
}
});
return router;
}
// ==========================================
// 2. VOD HANDLER (FFmpeg HLS Transcoding)
// ==========================================
// ==========================================
// 2. VOD HANDLER (FFmpeg HLS Transcoding)
// ==========================================
Handler createVodStreamHandler(Future<PlaylistConfig?> Function(Request) getPlaylist) {
final router = Router();
// Route: /api/vod/{streamId}/playlist.m3u8
router.get('/<streamId>/playlist.m3u8', (Request request, String streamId) async {
final playlist = await getPlaylist(request);
if (playlist == null) return Response.internalServerError(body: 'No playlist');
// Clean up old session if exists
if (_vodProcesses.containsKey(streamId)) {
print('[VOD] Killing previous session for $streamId');
_vodProcesses[streamId]?.kill();
_vodProcesses.remove(streamId);
}
// Prepare directory
final streamDir = Directory('${_hlsTempDir.path}/$streamId');
if (streamDir.existsSync()) {
streamDir.deleteSync(recursive: true);
}
streamDir.createSync(recursive: true);
// Build Upstream URL (Try MKV first, then generic)
// Note: We don't know the extension here easily unless passed.
// Xtream usually allows access via streamId.mkv or streamId.mp4 regardless of actual file
// We'll trust the ID.
final targetUrl = '${playlist.dns}/movie/${playlist.username}/${playlist.password}/$streamId.mkv';
print('[VOD] Starting Transcode: $targetUrl');
// Start FFmpeg
final ffmpegArgs = [
'-hide_banner', '-loglevel', 'error',
'-headers', 'User-Agent: VLC/3.0.18 LibVLC/3.0.18\r\n',
'-i', targetUrl,
// Video: H.264 Ultrafast (Low CPU)
'-c:v', 'libx264',
'-preset', 'ultrafast',
'-tune', 'fastdecode',
'-crf', '23',
'-maxrate', '3000k',
'-bufsize', '6000k',
'-pix_fmt', 'yuv420p',
'-threads', '0',
// Audio: AAC (Browser compatible)
'-c:a', 'aac',
'-b:a', '128k',
'-ac', '2',
// HLS Output options
'-f', 'hls',
'-hls_time', '4',
'-hls_list_size', '0', // Keep all segments
'-hls_segment_type', 'mpegts',
'-hls_segment_filename', '${streamDir.path}/segment_%03d.ts',
'-start_number', '0',
// Write playlist to stdout or file? File is easier for static serving
'${streamDir.path}/playlist.m3u8'
];
Process.start('ffmpeg', ffmpegArgs).then((process) {
_vodProcesses[streamId] = process;
process.stderr.transform(utf8.decoder).listen((data) {
if (data.contains('Error')) print('[FFmpeg $streamId] $data');
});
process.exitCode.then((code) {
print('[VOD] FFmpeg exited with code $code');
_vodProcesses.remove(streamId);
});
});
// Wait for playlist to appear (max 10s)
final playlistFile = File('${streamDir.path}/playlist.m3u8');
int retries = 0;
while (!playlistFile.existsSync() && retries < 20) {
await Future.delayed(const Duration(milliseconds: 500));
retries++;
}
if (!playlistFile.existsSync()) {
return Response.internalServerError(body: 'Timeout waiting for transcoder');
}
return Response.ok(
playlistFile.openRead(),
headers: {
'Content-Type': 'application/vnd.apple.mpegurl', // Correct HLS Mime
'Access-Control-Allow-Origin': '*',
'Cache-Control': 'no-cache',
},
);
});
// Route: /api/vod/{streamId}/segment_{n}.ts (Serve segments)
router.get('/<streamId>/<segment>', (Request request, String streamId, String segment) async {
final file = File('${_hlsTempDir.path}/$streamId/$segment');
if (!file.existsSync()) {
return Response.notFound('Segment not found');
}
return Response.ok(
file.openRead(),
headers: {
'Content-Type': 'video/mp2t',
'Access-Control-Allow-Origin': '*',
'Cache-Control': 'max-age=3600', // Cache segments
},
);
});
return router;
}
+55 -589
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@@ -9,16 +9,16 @@ import 'package:http/http.dart' as http;
import 'package:args/args.dart';
import 'database/database.dart';
import 'models/user.dart';
import 'api/auth_handler.dart';
import 'api/users_handler.dart';
import 'models/playlist.dart';
import 'package:xtremflow/core/models/playlist_config.dart';
import 'api/auth_handler.dart';
import 'api/users_handler.dart';
import 'api/playlists_handler.dart';
import 'api/settings_handler.dart';
import 'api/streaming_handler.dart';
import 'middleware/auth_middleware.dart';
import 'middleware/security_middleware.dart';
import 'services/cleanup_service.dart';
import 'api/hls_handler.dart';
void main(List<String> args) async {
// Parse command line arguments
@@ -35,6 +35,9 @@ void main(List<String> args) async {
await db.init();
await db.seedAdmin();
// Initialize Streaming Subsystem
await initStreaming();
// Create API handlers
final authHandler = AuthHandler(db);
final playlistsHandler = PlaylistsHandler(db);
@@ -43,26 +46,24 @@ void main(List<String> args) async {
// Setup router
final apiRouter = Router()
// Auth endpoints (no auth middleware) - full path including /api/
// Auth endpoints
..mount('/api/auth', authHandler.router)
// Playlists endpoints (with auth middleware)
// Playlists endpoints
..mount('/api/playlists', Pipeline()
.addMiddleware(authMiddleware(db))
.addHandler(playlistsHandler.router.call))
// Users endpoints (with auth middleware)
// Users endpoints
..mount('/api/users', Pipeline()
.addMiddleware(authMiddleware(db))
.addHandler(usersHandler.router.call))
// Settings endpoints (with auth middleware)
// Settings endpoints
..mount('/api/settings', Pipeline()
.addMiddleware(authMiddleware(db))
.addHandler(settingsHandler.router.call));
// Initialize Cleanup Service
final cleanupService = CleanupService();
// Target system temp directory (often used by FFmpeg/Dart)
cleanupService.addTarget(Directory.systemTemp);
// Target local logs/cache if they exist
cleanupService.addTarget(Directory('/app/data/logs'));
cleanupService.addTarget(Directory('/app/data/tmp'));
@@ -89,9 +90,8 @@ void main(List<String> args) async {
});
return router(request);
}),);
}));
// Create handlers
// Create static handler
final baseStaticHandler = createStaticHandler(
webPath,
@@ -107,8 +107,8 @@ void main(List<String> args) async {
final path = request.url.path;
if (path.isEmpty ||
path == 'index.html' ||
path.endsWith('.js') || // Disable cache for ALL JS files (main.dart.js, bootstrap, etc)
path.endsWith('.json')) { // version.json etc
path.endsWith('.js') ||
path.endsWith('.json')) {
return response.change(headers: {
'Cache-Control': 'no-store, no-cache, must-revalidate, max-age=0',
'Pragma': 'no-cache',
@@ -116,30 +116,58 @@ void main(List<String> args) async {
});
}
// Allow aggressive caching for hashed assets (images, compiled JS)
// Flutter web builds usually hash main.dart.js, but let's be safe with 1 day
// Allow aggressive caching for hashed assets
return response.change(headers: {
'Cache-Control': 'public, max-age=86400',
});
};
// Main handler with API proxy and FFmpeg streaming
// Helper to get playlist from request
Future<PlaylistConfig?> _getPlaylist(Request request) async {
Playlist? playlist;
final user = request.context['user'] as User?;
if (user != null) {
final playlists = db.getPlaylists(user.id);
if (playlists.isNotEmpty) playlist = playlists.first;
} else {
// Fallback: Try to find a playlist for any user if no specific user is logged in
final users = db.getAllUsers();
if (users.isNotEmpty) {
final playlists = db.getPlaylists(users[0].id);
if (playlists.isNotEmpty) playlist = playlists.first;
}
}
if (playlist != null) {
return PlaylistConfig(
id: playlist.id,
name: playlist.name,
dns: playlist.serverUrl,
username: playlist.username,
password: playlist.password,
createdAt: playlist.createdAt,
isActive: true,
);
}
return null;
}
// Main handler with API proxy and NEW Streaming Handlers
final handler = Cascade()
.add(_createApiHandler(apiRouter))
.add(createStreamInitHandler()) // FFmpeg HLS transcoding
.add(createHlsFileHandler()) // Serve HLS files (.m3u8, .ts)
.add(_createXtreamProxyHandler())
.add(_createXtreamProxyHandler()) /* Keep for general API calls */
.add(createLiveStreamHandler(_getPlaylist))
.add(createVodStreamHandler(_getPlaylist))
.add(staticHandler)
.handler;
// Add middleware
final pipeline = Pipeline()
.addMiddleware(logRequests())
.addMiddleware(securityHeadersMiddleware()) // Basic Headers
.addMiddleware(honeypotMiddleware()) // Trap Bots
.addMiddleware(rateLimitMiddleware()) // Anti-DoS
.addMiddleware(securityHeadersMiddleware())
.addMiddleware(honeypotMiddleware())
.addMiddleware(rateLimitMiddleware())
.addMiddleware(_corsMiddleware())
.addHandler(handler);
@@ -154,7 +182,6 @@ void main(List<String> args) async {
print('Serving static files from: $webPath');
print('REST API available at: /api/auth/* and /api/playlists/*');
print('Xtream proxy available at: /api/xtream/*');
print('FFmpeg streaming available at: /api/stream/*');
// Clean expired sessions periodically (every hour)
Timer.periodic(const Duration(hours: 1), (_) {
@@ -163,7 +190,6 @@ void main(List<String> args) async {
});
}
/// Create API handler
/// Create API handler
Handler _createApiHandler(Router apiRouter) {
return (Request request) async {
@@ -172,8 +198,8 @@ Handler _createApiHandler(Router apiRouter) {
// Only handle /api/* requests (excluding special handlers)
if (path.startsWith('api/') &&
!path.startsWith('api/xtream/') &&
!path.startsWith('api/stream/') &&
!path.startsWith('api/hls/')) {
!path.startsWith('api/live/') &&
!path.startsWith('api/vod/')) {
return apiRouter(request);
}
@@ -216,25 +242,21 @@ Handler _createXtreamProxyHandler() {
try {
// Extract target URL from request
// Format: /api/xtream/http://server:port/path
// Note: URL might be URL-encoded (e.g., http%3A%2F%2F...)
String apiPath = path.substring('api/xtream/'.length);
// Decode URL if it's encoded (http%3A%2F%2F -> http://)
// Decode URL if it's encoded
if (apiPath.startsWith('http%3A') || apiPath.startsWith('https%3A')) {
apiPath = Uri.decodeComponent(apiPath);
}
// The client will send the full URL after /api/xtream/
if (!apiPath.startsWith('http://') && !apiPath.startsWith('https://')) {
return Response.badRequest(
body: 'Invalid API URL. Expected format: /api/xtream/http://...',
);
}
// Reconstruct the full target URL with query parameters
String fullUrl = apiPath;
if (request.url.query.isNotEmpty) {
// If the target URL already has query params, append with &
if (fullUrl.contains('?')) {
fullUrl = '$fullUrl&${request.url.query}';
} else {
@@ -243,47 +265,14 @@ Handler _createXtreamProxyHandler() {
}
final targetUrl = Uri.parse(fullUrl);
final baseUrl = '${targetUrl.scheme}://${targetUrl.host}${targetUrl.hasPort ? ':${targetUrl.port}' : ''}';
// Check if this is a video file that needs streaming
final lowerPath = targetUrl.path.toLowerCase();
// Detect LIVE TV streams (infinite streams)
final isLiveStream = lowerPath.contains('/live/') && lowerPath.endsWith('.ts');
// Detect VOD files (finite, seekable)
final isVodFile = !isLiveStream && (
lowerPath.endsWith('.mp4') ||
lowerPath.endsWith('.mkv') ||
lowerPath.endsWith('.avi') ||
lowerPath.endsWith('.ts') ||
lowerPath.endsWith('.m4v') ||
lowerPath.contains('/movie/') ||
lowerPath.contains('/series/'));
print('Proxying request to: $targetUrl (live: $isLiveStream, vod: $isVodFile)');
// For LIVE streams, use infinite streaming handler
if (isLiveStream) {
return _streamLiveChannel(targetUrl);
}
// For VOD files, use streaming with Range support for seeking
if (isVodFile) {
final rangeHeader = request.headers['range'];
return _streamVideoFile(targetUrl, rangeHeader);
}
// Headers to simulate a legitimate IPTV client (VLC/Kodi style)
final proxyHeaders = {
'User-Agent': 'VLC/3.0.18 LibVLC/3.0.18',
'Accept': '*/*',
'Accept-Encoding': 'identity',
'Connection': 'keep-alive',
'Icy-MetaData': '1',
};
// Use simple http.get/post for non-video content
http.Response response;
if (request.method == 'GET') {
response = await http.get(targetUrl, headers: proxyHeaders).timeout(
@@ -300,49 +289,12 @@ Handler _createXtreamProxyHandler() {
return Response(405, body: 'Method not allowed');
}
// Check if this is an M3U8/HLS playlist that needs URL rewriting
final contentType = response.headers['content-type'] ?? '';
final isM3u8 = fullUrl.endsWith('.m3u8') ||
contentType.contains('application/vnd.apple.mpegurl') ||
contentType.contains('application/x-mpegurl') ||
contentType.contains('audio/mpegurl');
if (isM3u8 && response.statusCode == 200) {
// Rewrite URLs in M3U8 playlist to go through proxy
final rewrittenBody = _rewriteM3u8Urls(
response.body,
baseUrl,
targetUrl.path,
request.requestedUri.origin,
);
print('Rewrote M3U8 playlist URLs for: $targetUrl');
return Response(
response.statusCode,
body: rewrittenBody,
headers: {
'content-type': 'application/vnd.apple.mpegurl',
'access-control-allow-origin': '*',
},
);
}
return Response(
response.statusCode,
body: response.bodyBytes,
headers: {
'content-type': response.headers['content-type'] ?? 'application/json',
'access-control-allow-origin': '*',
// Forward cache headers from upstream
if (response.headers.containsKey('cache-control'))
'cache-control': response.headers['cache-control']!,
if (response.headers.containsKey('expires'))
'expires': response.headers['expires']!,
if (response.headers.containsKey('etag'))
'etag': response.headers['etag']!,
if (response.headers.containsKey('last-modified'))
'last-modified': response.headers['last-modified']!,
},
);
} catch (e, stackTrace) {
@@ -355,489 +307,3 @@ Handler _createXtreamProxyHandler() {
}
};
}
/// Stream video file using HttpClient with Range support for seeking
Future<Response> _streamVideoFile(Uri targetUrl, String? rangeHeader) async {
final maxRedirects = 5;
var currentUrl = targetUrl;
final cookies = <String, String>{}; // Cookie Jar for redirects
print('Stream Request: $targetUrl');
if (rangeHeader != null) print('Client Requested Range: $rangeHeader');
for (var i = 0; i < maxRedirects; i++) {
try {
final client = HttpClient();
// Increase timeouts for large video files
client.connectionTimeout = const Duration(seconds: 60);
client.idleTimeout = const Duration(minutes: 5);
final req = await client.getUrl(currentUrl);
req.followRedirects = false; // We handle redirects manually
req.headers.set('User-Agent', 'VLC/3.0.18 LibVLC/3.0.18');
req.headers.set('Accept', '*/*');
req.headers.set('Connection', 'keep-alive');
req.headers.set('Accept-Encoding', 'identity');
// Apply collected cookies
if (cookies.isNotEmpty) {
final cookieHeader = cookies.entries.map((e) => '${e.key}=${e.value}').join('; ');
req.headers.set(HttpHeaders.cookieHeader, cookieHeader);
}
// Forward request headers
if (rangeHeader != null && rangeHeader.isNotEmpty) {
if (!rangeHeader.startsWith('bytes=')) {
rangeHeader = 'bytes=$rangeHeader';
}
req.headers.set(HttpHeaders.rangeHeader, rangeHeader);
}
client.autoUncompress = false;
final response = await req.close();
print('Upstream Response: ${response.statusCode} (Redirect $i)');
// Collect Cookies from response
response.cookies.forEach((cookie) {
cookies[cookie.name] = cookie.value;
});
// Handle Redirects (301, 302, 303, 307, 308)
if (response.statusCode >= 300 && response.statusCode < 400) {
final location = response.headers.value(HttpHeaders.locationHeader);
if (location != null) {
print('Redirecting stream to: $location');
currentUrl = Uri.parse(location);
await response.drain(); // Drain body to release connection
continue; // Loop to next request
}
}
// Get content type
final contentType = response.headers.contentType?.mimeType ?? 'video/mp4';
// Build response headers
final responseHeaders = <String, String>{
'content-type': contentType,
'access-control-allow-origin': '*',
'accept-ranges': 'bytes',
'cache-control': 'no-cache',
'connection': 'keep-alive',
};
// Checks for 206 vs 200
if (response.statusCode == 200 && rangeHeader != null) {
print('WARNING: Upstream ignored Range header and returned 200. Seeking might fail.');
} else if (response.statusCode == 206) {
print('SUCCESS: Upstream returned 206 Partial Content.');
}
// Add Content-Length if available
if (response.contentLength > 0) {
responseHeaders['content-length'] = response.contentLength.toString();
}
// Add Content-Range if this is a partial response (206)
final contentRange = response.headers.value(HttpHeaders.contentRangeHeader);
if (contentRange != null) {
responseHeaders[HttpHeaders.contentRangeHeader] = contentRange;
}
// Propagate Accept-Ranges
responseHeaders[HttpHeaders.acceptRangesHeader] = 'bytes';
// Return appropriate status code
return Response(
response.statusCode,
body: response,
headers: responseHeaders,
);
} catch (e) {
print('Video streaming exception: $e');
if (i == maxRedirects - 1) {
return Response.internalServerError(
body: jsonEncode({'error': 'Video streaming error', 'message': e.toString()}),
headers: {'content-type': 'application/json'},
);
}
}
}
return Response.internalServerError(body: 'Too many redirects');
}
/// Stream LIVE TV channel with persistent connection (no Content-Length)
///
/// Unlike VOD streaming, live streams are infinite and should not close
/// the connection until the client disconnects.
Future<Response> _streamLiveChannel(Uri targetUrl) async {
final maxRedirects = 5;
var currentUrl = targetUrl;
final cookies = <String, String>{};
print('Live Stream Request: $targetUrl');
for (var i = 0; i < maxRedirects; i++) {
try {
final client = HttpClient();
// CRITICAL: Very long timeouts for live streaming
client.connectionTimeout = const Duration(minutes: 2);
client.idleTimeout = const Duration(hours: 2); // Keep alive for 2 hours
final req = await client.getUrl(currentUrl);
req.followRedirects = false;
req.persistentConnection = true; // Keep connection alive
// IPTV-compatible headers
req.headers.set('User-Agent', 'VLC/3.0.18 LibVLC/3.0.18');
req.headers.set('Accept', '*/*');
req.headers.set('Connection', 'keep-alive');
req.headers.set('Accept-Encoding', 'identity');
req.headers.set('Icy-MetaData', '1'); // IPTV metadata support
// Apply cookies from redirects
if (cookies.isNotEmpty) {
final cookieHeader = cookies.entries.map((e) => '${e.key}=${e.value}').join('; ');
req.headers.set(HttpHeaders.cookieHeader, cookieHeader);
}
client.autoUncompress = false;
final response = await req.close();
print('Live Stream Response: ${response.statusCode} from $currentUrl');
// Collect cookies
response.cookies.forEach((cookie) {
cookies[cookie.name] = cookie.value;
});
// Handle redirects
if (response.statusCode >= 300 && response.statusCode < 400) {
final location = response.headers.value(HttpHeaders.locationHeader);
if (location != null) {
print('Live stream redirecting to: $location');
currentUrl = Uri.parse(location);
await response.drain();
continue;
}
}
// Get content type
final contentType = response.headers.contentType?.mimeType ?? 'video/MP2T';
print('Live stream connected: $contentType');
// Use StreamController to pipe the live stream to the client
// This keeps the connection open and actively streams data
final controller = StreamController<List<int>>();
// Listen to the upstream response and forward data to the client
response.listen(
(data) {
if (!controller.isClosed) {
controller.add(data);
}
},
onError: (error) {
print('Live stream error: $error');
if (!controller.isClosed) {
controller.addError(error);
}
},
onDone: () {
print('Live stream upstream ended');
if (!controller.isClosed) {
controller.close();
}
},
cancelOnError: false,
);
// When client disconnects, close the controller
controller.onCancel = () {
print('Live stream client disconnected');
// Note: The response stream will be garbage collected
};
// Response headers for live streaming (NO Content-Length!)
final responseHeaders = <String, String>{
'content-type': contentType,
'access-control-allow-origin': '*',
'cache-control': 'no-cache, no-store',
'connection': 'keep-alive',
// Don't set transfer-encoding or content-length for raw binary streams
};
// Return streaming response
return Response.ok(
controller.stream,
headers: responseHeaders,
);
} catch (e) {
print('Live streaming exception: $e');
if (i == maxRedirects - 1) {
return Response.internalServerError(
body: jsonEncode({'error': 'Live streaming error', 'message': e.toString()}),
headers: {'content-type': 'application/json'},
);
}
}
}
return Response.internalServerError(body: 'Too many redirects');
}
/// Rewrite URLs in M3U8 playlist to go through the proxy
///
/// Handles both relative and absolute URLs in HLS playlists
String _rewriteM3u8Urls(String m3u8Content, String baseUrl, String originalPath, String proxyOrigin) {
final lines = m3u8Content.split('\n');
final rewrittenLines = <String>[];
// Get directory path for relative URL resolution
final pathSegments = originalPath.split('/');
pathSegments.removeLast(); // Remove filename
final basePath = pathSegments.join('/');
for (final line in lines) {
final trimmedLine = line.trim();
// Skip empty lines and comments (except URI in comments)
if (trimmedLine.isEmpty) {
rewrittenLines.add(line);
continue;
}
// Handle lines that contain URLs (not starting with #, or EXT-X-KEY/EXT-X-MAP with URI)
if (!trimmedLine.startsWith('#')) {
// This is a segment URL
final rewrittenUrl = _rewriteUrl(trimmedLine, baseUrl, basePath, proxyOrigin);
rewrittenLines.add(rewrittenUrl);
} else if (trimmedLine.contains('URI="')) {
// Handle EXT-X-KEY, EXT-X-MAP, etc. with URI attribute
final rewrittenLine = trimmedLine.replaceAllMapped(
RegExp(r'URI="([^"]+)"'),
(match) {
final uri = match.group(1)!;
final rewrittenUri = _rewriteUrl(uri, baseUrl, basePath, proxyOrigin);
return 'URI="$rewrittenUri"';
},
);
rewrittenLines.add(rewrittenLine);
} else {
rewrittenLines.add(line);
}
}
return rewrittenLines.join('\n');
}
/// Rewrite a single URL to go through the proxy
String _rewriteUrl(String url, String baseUrl, String basePath, String proxyOrigin) {
String fullUrl;
if (url.startsWith('http://') || url.startsWith('https://')) {
// Already absolute URL
fullUrl = url;
} else if (url.startsWith('/')) {
// Absolute path, relative to server root
fullUrl = '$baseUrl$url';
} else {
// Relative path, relative to current directory
fullUrl = '$baseUrl$basePath/$url';
}
// Wrap with proxy
return '$proxyOrigin/api/xtream/$fullUrl';
}
// ============================================
// FFmpeg Stream Transcoding Handler
// ============================================
/// Active FFmpeg processes by stream ID
final Map<String, Process> _activeStreams = {};
/// Create handler for FFmpeg streaming
///
/// This endpoint starts an FFmpeg process that connects to the IPTV server
/// with proper headers and transcodes the stream to local HLS files.
Handler _createStreamHandler() {
return (Request request) async {
final path = request.url.path;
// Only handle /api/stream/* requests
if (!path.startsWith('api/stream/')) {
return Response.notFound('Not found');
}
try {
// Extract stream ID
final pathParts = path.split('/');
if (pathParts.length < 3) {
return Response.badRequest(body: 'Invalid stream path');
}
final streamId = pathParts[2];
// Get parameters
final iptvUrl = request.url.queryParameters['url'];
final quality = request.url.queryParameters['quality'] ?? 'high';
final start = request.url.queryParameters['start']; // Start time in seconds
if (iptvUrl == null || iptvUrl.isEmpty) {
return Response.badRequest(body: 'Missing url parameter');
}
print('Starting Direct Stream for ID: $streamId');
print('Source: $iptvUrl');
// Setup FFmpeg arguments for fMP4 piping
// Determine if it's VOD or Live
final isVod = streamId.startsWith('vod_'); // Or use extension check
final ffmpegArgs = <String>[
'-hide_banner',
'-loglevel', 'error', // Minimize logs, only errors
'-user_agent', 'VLC/3.0.18 LibVLC/3.0.18',
'-headers', 'Accept: */*\r\nConnection: keep-alive\r\n',
// Input resilience flags
'-reconnect', '1',
'-reconnect_streamed', '1',
'-reconnect_delay_max', '10',
'-reconnect_on_network_error', '1',
'-reconnect_on_http_error', '4xx,5xx',
'-rw_timeout', '15000000', // 15s timeout
// Probing settings to ensure stream detection
'-analyzeduration', '20000000', // 20s
'-probesize', '10000000', // 10MB
'-i', iptvUrl,
// Output format: MPEG-TS for streaming (compatible with mpegts.js)
'-f', 'mpegts',
];
// Add seeking support if start time is provided
if (start != null && start.isNotEmpty) {
// Insert -ss before -i for faster seeking (input seeking)
final inputIndex = ffmpegArgs.indexOf('-i');
if (inputIndex != -1) {
ffmpegArgs.insertAll(inputIndex, ['-ss', start]);
}
}
// Video: Transcode based on quality
// High = Copy (efficient), Low/Medium = Transcode to H.264 (compatible)
if (quality == 'high') {
ffmpegArgs.addAll(['-c:v', 'copy']);
} else {
// Transcode to H.264 (Baseline profile for max mobile compatibility)
ffmpegArgs.addAll([
'-c:v', 'libx264',
'-preset', 'ultrafast', // Critical for live streaming
'-tune', 'zerolatency',
'-profile:v', 'baseline',
'-level', '3.0',
'-pix_fmt', 'yuv420p', // Ensure standard pixel format for web
'-g', '60', // Keyframe interval (2s at 30fps) for seeking
]);
if (quality == 'low') {
// Low: ~480p, 800k
ffmpegArgs.addAll([
'-vf', 'scale=-2:480',
'-b:v', '800k',
'-maxrate', '800k',
'-bufsize', '1600k',
]);
} else {
// Medium: Original res (or cap at 720p?), 2500k
ffmpegArgs.addAll([
'-b:v', '2500k',
'-maxrate', '2500k',
'-bufsize', '5000k',
]);
}
}
// Audio: Transcode to AAC is SAFEST for browsers
// (Many IPTV streams typically use MP2/AC3 which browsers hate)
ffmpegArgs.addAll([
'-c:a', 'aac',
'-b:a', '128k',
'-ar', '44100',
'-ac', '2',
// Fix for MPEG-TS timestamps
'-fflags', '+genpts',
// Output to stdout pipe
'pipe:1',
]);
// Start the process
final process = await Process.start('ffmpeg', ffmpegArgs);
// Manage process lifecycle
// We use a StreamController to pipe stdout to the response
// AND detect when the client disconnects to kill the process.
final controller = StreamController<List<int>>();
// Pipe stdout to controller
process.stdout.listen(
(data) {
if (!controller.isClosed) controller.add(data);
},
onError: (e) {
print('FFmpeg stdout error: $e');
if (!controller.isClosed) controller.addError(e);
},
onDone: () {
print('FFmpeg process finished for $streamId');
if (!controller.isClosed) controller.close();
},
);
// Log stderr for debug
process.stderr.transform(utf8.decoder).listen((data) {
if (data.contains('Error') || data.contains('error')) {
print('FFmpeg Error [$streamId]: $data');
}
});
// CLEANUP: When the HTTP client disconnects, the stream subscription
// will be cancelled. We MUST kill the FFmpeg process then.
controller.onCancel = () {
print('Client disconnected for $streamId. Killing FFmpeg...');
process.kill();
};
return Response.ok(
controller.stream,
headers: {
'Content-Type': 'video/MP2T',
'Access-Control-Allow-Origin': '*',
'Cache-Control': 'no-cache, no-store',
'Connection': 'keep-alive',
},
);
} catch (e, stackTrace) {
print('Stream setup error: $e');
print(stackTrace);
return Response.internalServerError(
body: jsonEncode({'error': 'Stream setup error', 'message': e.toString()}),
headers: {'content-type': 'application/json'},
);
}
};
}