joaquin/KiraTV-APP-NodeCast-Modificada-y-Personalizada
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Refactored server/db.js and all routes to use asynchronous fs operations, refactored m3uParser and epgParser to use streaming (via readline and sax) to prevent errors with large files, updated server/routes/proxy.js to use native stream piping for images and video, reducing latency and memory overhead

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This commit is contained in:
Trevor Mears
2025-12-30 00:34:55 -08:00
parent 3b0d311756
commit d63c9c37d7
9 changed files with 366 additions and 311 deletions
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server/routes/proxy.js
+26 -42
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@@ -5,6 +5,7 @@ const xtreamApi = require('../services/xtreamApi');
const m3uParser = require('../services/m3uParser');
const epgParser = require('../services/epgParser');
const cache = require('../services/cache');
const { Readable } = require('stream');
// Default cache TTL: 24 hours
const DEFAULT_MAX_AGE_HOURS = 24;
@@ -16,7 +17,7 @@ const DEFAULT_MAX_AGE_HOURS = 24;
router.get('/xtream/:sourceId/:action', async (req, res) => {
try {
const sourceId = req.params.sourceId;
const source = sources.getById(sourceId);
const source = await sources.getById(sourceId);
if (!source || source.type !== 'xtream') {
return res.status(404).json({ error: 'Xtream source not found' });
}
@@ -99,9 +100,9 @@ router.get('/xtream/:sourceId/:action', async (req, res) => {
* Get Xtream stream URL
* GET /api/proxy/xtream/:sourceId/stream/:streamId
*/
router.get('/xtream/:sourceId/stream/:streamId/:type?', (req, res) => {
router.get('/xtream/:sourceId/stream/:streamId/:type?', async (req, res) => {
try {
const source = sources.getById(req.params.sourceId);
const source = await sources.getById(req.params.sourceId);
if (!source || source.type !== 'xtream') {
return res.status(404).json({ error: 'Xtream source not found' });
}
@@ -125,7 +126,7 @@ router.get('/xtream/:sourceId/stream/:streamId/:type?', (req, res) => {
router.get('/m3u/:sourceId', async (req, res) => {
try {
const sourceId = req.params.sourceId;
const source = sources.getById(sourceId);
const source = await sources.getById(sourceId);
if (!source || source.type !== 'm3u') {
return res.status(404).json({ error: 'M3U source not found' });
}
@@ -164,7 +165,7 @@ router.get('/m3u/:sourceId', async (req, res) => {
router.get('/epg/:sourceId', async (req, res) => {
try {
const sourceId = req.params.sourceId;
const source = sources.getById(sourceId);
const source = await sources.getById(sourceId);
if (!source || (source.type !== 'epg' && source.type !== 'xtream')) {
return res.status(404).json({ error: 'Valid EPG source not found' });
}
@@ -226,7 +227,7 @@ router.delete('/epg/:sourceId/cache', (req, res) => {
*/
router.post('/epg/:sourceId/channels', async (req, res) => {
try {
const source = sources.getById(req.params.sourceId);
const source = await sources.getById(req.params.sourceId);
if (!source || source.type !== 'epg') {
return res.status(404).json({ error: 'EPG source not found' });
}
@@ -277,7 +278,6 @@ router.get('/stream', async (req, res) => {
const response = await fetch(url, { headers });
if (!response.ok) {
console.error(`Upstream error for ${url.substring(0, 80)}...: ${response.status} ${response.statusText}`);
// Log response body for debugging 403s
if (response.status === 403) {
const errorBody = await response.text().catch(() => 'N/A');
console.error(`403 Response body: ${errorBody.substring(0, 200)}`);
@@ -289,25 +289,22 @@ router.get('/stream', async (req, res) => {
res.set('Access-Control-Allow-Origin', '*');
// Create an async iterator for the response body
// Note: undici fetch returns an iterable body
const iterator = response.body[Symbol.asyncIterator]();
const first = await iterator.next();
if (first.done) {
// Empty response
res.set('Content-Type', contentType || 'application/octet-stream');
return res.end();
}
const firstChunk = Buffer.from(first.value);
// Peek at first bytes to check for HLS manifest (#EXTM3U)
// Peek at first bytes to check for HLS manifest ({ #EXTM3U })
const textPrefix = firstChunk.subarray(0, 7).toString('utf8');
const contentLooksLikeHls = textPrefix === '#EXTM3U';
if (contentLooksLikeHls) {
// HLS Manifest: We must read the WHOLE stream to rewrite it
// This is fine because manifests are small text files
// HLS Manifest: We must read the WHOLE manifest to rewrite it
const chunks = [firstChunk];
// Consume the rest of the stream
@@ -318,8 +315,6 @@ router.get('/stream', async (req, res) => {
}
const buffer = Buffer.concat(chunks);
// Use the final URL after redirects for base URL calculation
const finalUrl = response.url || url;
console.log(`[Proxy] Processing HLS manifest from: ${finalUrl.substring(0, 80)}...`);
res.set('Content-Type', 'application/vnd.apple.mpegurl');
@@ -328,11 +323,9 @@ router.get('/stream', async (req, res) => {
const finalUrlObj = new URL(finalUrl);
const baseUrl = finalUrlObj.origin + finalUrlObj.pathname.substring(0, finalUrlObj.pathname.lastIndexOf('/') + 1);
console.log(`[Proxy] Base URL for rewriting: ${baseUrl}`);
manifest = manifest.split('\n').map(line => {
const trimmed = line.trim();
// ... same rewrite logic as before ...
if (trimmed === '' || trimmed.startsWith('#')) {
if (trimmed.includes('URI="')) {
return line.replace(/URI="([^"]+)"/g, (match, p1) => {
@@ -360,34 +353,19 @@ router.get('/stream', async (req, res) => {
return res.send(manifest);
}
// Binary content (Video Segment): STREAM IT!
// This is the critical fix for "SocketError: other side closed"
// Binary content (Video Segment): Efficient Pipe
console.log(`[Proxy] Piping binary stream (${contentType})`);
res.set('Content-Type', contentType || 'application/octet-stream');
// Write the first chunk we already peeked
// Write the chunk we peeked
res.write(firstChunk);
// Pipe the rest of the iterator to the response
try {
let result = await iterator.next();
while (!result.done) {
// If client disconnects, stop reading
if (res.writableEnded || res.closed) break;
// Stream the rest
// Create a readable stream from the iterator
const restOfStream = Readable.from(iterator);
const canWrite = res.write(Buffer.from(result.value));
if (!canWrite) {
// Handle backpressure
await new Promise(resolve => res.once('drain', resolve));
}
result = await iterator.next();
}
res.end();
} catch (streamErr) {
console.error('Stream pipe error:', streamErr);
if (!res.headersSent) res.status(500).end();
else res.end();
}
// Pipe to response
restOfStream.pipe(res);
} catch (err) {
console.error('Stream proxy error:', err);
@@ -420,15 +398,21 @@ router.get('/image', async (req, res) => {
return res.status(response.status).send('Failed to fetch image');
}
// Forward content type
const contentType = response.headers.get('content-type') || 'image/png';
res.set('Content-Type', contentType);
res.set('Access-Control-Allow-Origin', '*');
res.set('Cache-Control', 'public, max-age=86400'); // Cache for 24 hours
// Pipe the image data
const buffer = await response.arrayBuffer();
res.send(Buffer.from(buffer));
// Efficiently pipe the response body
if (response.body) {
// response.body is an AsyncIterable in standard fetch/undici
// Readable.from converts it to a Node.js Readable stream
const stream = Readable.from(response.body);
stream.pipe(res);
} else {
res.end();
}
} catch (err) {
console.error('Image proxy error:', err.message);
res.status(500).send('Image proxy error');