add log to check 0 byte error

api/src/stream/internal.js

@@ -8,11 +8,18 @@ const min = (a, b) => a < b ? a : b;
 
 async function* readChunks(streamInfo, size) {
     let read = 0n, chunksSinceTransplant = 0;
+    console.log(`[readChunks] Starting chunk download - Total size: ${size}, URL: ${streamInfo.url}`);
+    
     while (read < size) {
         if (streamInfo.controller.signal.aborted) {
+            console.log(`[readChunks] Controller aborted at read=${read}/${size}`);
             throw new Error("controller aborted");
         }
 
+        const rangeStart = read;
+        const rangeEnd = read + CHUNK_SIZE;
+        console.log(`[readChunks] Requesting chunk: bytes=${rangeStart}-${rangeEnd}, read=${read}/${size}`);
+
         const chunk = await request(streamInfo.url, {
             headers: {
                 ...getHeaders('youtube'),
@@ -23,12 +30,18 @@ async function* readChunks(streamInfo, size) {
             maxRedirections: 4
         });
 
+        console.log(`[readChunks] Chunk response: status=${chunk.statusCode}, content-length=${chunk.headers['content-length']}`);
+
         if (chunk.statusCode === 403 && chunksSinceTransplant >= 3 && streamInfo.transplant) {
             chunksSinceTransplant = 0;
+            console.log(`[readChunks] 403 error after ${chunksSinceTransplant} chunks, attempting transplant`);
             try {
                 await streamInfo.transplant(streamInfo.dispatcher);
+                console.log(`[readChunks] Transplant successful, retrying`);
                 continue;
-            } catch {}
+            } catch (error) {
+                console.log(`[readChunks] Transplant failed: ${error}`);
+            }
         }
 
         chunksSinceTransplant++;
@@ -36,24 +49,39 @@ async function* readChunks(streamInfo, size) {
         const expected = min(CHUNK_SIZE, size - read);
         const received = BigInt(chunk.headers['content-length']);
 
+        console.log(`[readChunks] Chunk validation: expected=${expected}, received=${received}, threshold=${expected / 2n}`);
+
         if (received < expected / 2n) {
+            console.log(`[readChunks] CRITICAL: Received size (${received}) < expected/2 (${expected / 2n}), closing controller`);
             closeRequest(streamInfo.controller);
         }
 
+        let chunkDataSize = 0;
         for await (const data of chunk.body) {
+            chunkDataSize += data.length;
             yield data;
         }
 
+        console.log(`[readChunks] Chunk processed: data size=${chunkDataSize}, header size=${received}, read progress=${read + received}/${size}`);
         read += received;
-    }
+    }    
+    console.log(`[readChunks] Download completed: total read=${read}/${size}`);
 }
 
 async function handleYoutubeStream(streamInfo, res) {
     const { signal } = streamInfo.controller;
-    const cleanup = () => (res.end(), closeRequest(streamInfo.controller));
+    const cleanup = () => {
+        console.log(`[handleYoutubeStream] Cleanup called`);
+        res.end();
+        closeRequest(streamInfo.controller);
+    };
+
+    console.log(`[handleYoutubeStream] Starting YouTube stream for URL: ${streamInfo.url}`);
 
     try {
         let req, attempts = 3;
+        console.log(`[handleYoutubeStream] Starting HEAD request with ${attempts} attempts`);
+        
         while (attempts--) {
             req = await fetch(streamInfo.url, {
                 headers: getHeaders('youtube'),
@@ -62,25 +90,34 @@ async function handleYoutubeStream(streamInfo, res) {
                 signal
             });
 
+            console.log(`[handleYoutubeStream] HEAD response: status=${req.status}, url=${req.url}`);
+            
             streamInfo.url = req.url;
             if (req.status === 403 && streamInfo.transplant) {
+                console.log(`[handleYoutubeStream] Got 403, attempting transplant`);
                 try {
                     await streamInfo.transplant(streamInfo.dispatcher);
-                } catch {
+                    console.log(`[handleYoutubeStream] Transplant successful`);
+                } catch (error) {
+                    console.log(`[handleYoutubeStream] Transplant failed: ${error}`);
                     break;
                 }
             } else break;
         }
 
         const size = BigInt(req.headers.get('content-length'));
+        console.log(`[handleYoutubeStream] Content length: ${size}, status: ${req.status}`);
 
         if (req.status !== 200 || !size) {
+            console.log(`[handleYoutubeStream] Invalid response - status: ${req.status}, size: ${size}, calling cleanup`);
             return cleanup();
         }
 
+        console.log(`[handleYoutubeStream] Creating generator for size: ${size}`);
         const generator = readChunks(streamInfo, size);
 
         const abortGenerator = () => {
+            console.log(`[handleYoutubeStream] Abort generator called`);
             generator.return();
             signal.removeEventListener('abort', abortGenerator);
         }
@@ -88,14 +125,21 @@ async function handleYoutubeStream(streamInfo, res) {
         signal.addEventListener('abort', abortGenerator);
 
         const stream = Readable.from(generator);
+        console.log(`[handleYoutubeStream] Created readable stream`);
 
+        // Set response headers
         for (const headerName of ['content-type', 'content-length']) {
             const headerValue = req.headers.get(headerName);
-            if (headerValue) res.setHeader(headerName, headerValue);
+            if (headerValue) {
+                res.setHeader(headerName, headerValue);
+                console.log(`[handleYoutubeStream] Set header ${headerName}: ${headerValue}`);
+            }
         }
 
+        console.log(`[handleYoutubeStream] Starting pipe operation`);
         pipe(stream, res, cleanup);
-    } catch {
+    } catch (error) {
+        console.log(`[handleYoutubeStream] Error occurred: ${error}`);
         cleanup();
     }
 }
@@ -142,14 +186,18 @@ async function handleGenericStream(streamInfo, res) {
 }
 
 export function internalStream(streamInfo, res) {
+    console.log(`[internalStream] Starting stream - service: ${streamInfo.service}, isHLS: ${streamInfo.isHLS}, URL: ${streamInfo.url}`);
+    
     if (streamInfo.headers) {
         streamInfo.headers.delete('icy-metadata');
     }
 
     if (streamInfo.service === 'youtube' && !streamInfo.isHLS) {
+        console.log(`[internalStream] Routing to handleYoutubeStream`);
         return handleYoutubeStream(streamInfo, res);
     }
 
+    console.log(`[internalStream] Routing to handleGenericStream`);
     return handleGenericStream(streamInfo, res);
 }
 

api/src/stream/shared.js

@@ -41,13 +41,38 @@ export function getHeaders(service) {
 }
 
 export function pipe(from, to, done) {
-    from.on('error', done)
+    let bytesTransferred = 0;
-        .on('close', done);
+    let startTime = Date.now();
+    console.log(`[pipe] Starting pipe operation`);
 
-    to.on('error', done)
+    from.on('error', (error) => {
-      .on('close', done);
+        console.log(`[pipe] Source stream error after ${bytesTransferred} bytes: ${error}`);
+        done(error);
+    })
+    .on('close', () => {
+        const duration = Date.now() - startTime;
+        console.log(`[pipe] Source stream closed after ${bytesTransferred} bytes in ${duration}ms`);
+        done();
+    })    .on('data', (chunk) => {
+        bytesTransferred += chunk.length;
+        // Log every 8MB (chunk size) or first few chunks
+        if (bytesTransferred % (8 * 1024 * 1024) < chunk.length || bytesTransferred < 32 * 1024) {
+            console.log(`[pipe] Data transferred: ${bytesTransferred} bytes`);
+        }
+    });
+
+    to.on('error', (error) => {
+        console.log(`[pipe] Destination stream error after ${bytesTransferred} bytes: ${error}`);
+        done(error);
+    })
+    .on('close', () => {
+        const duration = Date.now() - startTime;
+        console.log(`[pipe] Destination stream closed after ${bytesTransferred} bytes in ${duration}ms`);
+        done();
+    });
 
     from.pipe(to);
+    console.log(`[pipe] Pipe established between streams`);
 }
 
 export async function estimateTunnelLength(streamInfo, multiplier = 1.1) {