feat: server-side ACK flow control (chunk→ack→next), bump 1.0.17

site/static/app.js

@@ -211,28 +211,8 @@ function uploadFileWS(url, f, idx) {
     ws.onopen = function () {
       var reader = new FileReader();
 
-      function sendOrWait(data) {
-        if (ws.bufferedAmount > 256 * 1024) {
-          setTimeout(function () { sendOrWait(data); }, 10);
-          return;
-        }
-        ws.send(data);
-        offset += CHUNK;
-        if (offset < f.size) {
-          var pct = Math.round(offset / f.size * 100);
-          if (pct - lastProgress >= 10) {
-            lastProgress = pct;
-            f.progress = pct;
-            renderTable();
-          }
-          readNext();
-        } else {
-          ws.send('DONE');
-        }
-      }
-
       reader.onload = function (e) {
-        sendOrWait(e.target.result);
+        ws.send(e.target.result);
       };
       function readNext() {
         var end = Math.min(offset + CHUNK, f.size);
@@ -244,11 +224,28 @@ function uploadFileWS(url, f, idx) {
     ws.onmessage = function (e) {
       try {
         var r = JSON.parse(e.data);
-        clearTimeout(timer);
-        f.progress = 100;
-        renderTable();
-        ws.close();
-        resolve({ bytes: r.bytes, elapsed_ms: Date.now() - startTime });
+        if (r.ack) {
+          // Сервер подтвердил получение N байт
+          offset = r.ack;
+          var pct = Math.round(offset / f.size * 100);
+          if (pct - lastProgress >= 10) {
+            lastProgress = pct;
+            f.progress = pct;
+            renderTable();
+          }
+          if (offset < f.size) {
+            readNext();
+          } else {
+            ws.send('DONE');
+          }
+        } else if (r.ok) {
+          // Финальный ответ
+          clearTimeout(timer);
+          f.progress = 100;
+          renderTable();
+          ws.close();
+          resolve({ bytes: r.bytes, elapsed_ms: Date.now() - startTime });
+        }
       } catch (err) {
         reject(new Error('Bad response'));
       }