fix: 增加对无效文件传输时的异常处理

src/index.tsx

@@ -847,6 +847,18 @@ export function Home() {
     await releaseJensen();
   }
 
+  const handleTransferX = async () => {
+    let jensen = await getJensen();
+    if (jensen == null) return;
+    let rst = await jensen.getFile('aabccd.txt', 100, (data) => {
+      console.log('data', data.length);
+    }, (size) => {
+      console.log('size', size);
+    });
+    Logger.info('jensen', 'transfer-x', 'Transfer X: ' + JSON.stringify(rst));
+    await releaseJensen();
+  }
+
   return (
     <>
     <div className="btn-container" style={{ display: 'flex', flexDirection: 'row', gap: '16px', padding: '16px', alignItems: 'center', flexWrap: 'wrap' }}>
@@ -893,6 +905,7 @@ export function Home() {
       <button onClick={getAudioInputDevice}>Get Audio Input Device</button>
       <button onClick={switchAudioInputDevice}>Switch Audio Input Device</button>
       <button onClick={handleReadBlock}>Read Block</button>
+      <button onClick={handleTransferX}>Transer Filex</button>
 
       <span style={{ marginLeft: '8px' }}>Interval(ms): </span>
       <input

src/utils/jensen.js

@@ -1164,7 +1164,13 @@ Jensen.prototype.getFilePart = async function (filename, length, ondata, onprogr
   let flen = 0;
   let handler = (msg) => {
     if (msg != null) {
-      flen += msg.body.length || msg.body.byteLength;
+      const bodyLen = msg.body ? (msg.body.byteLength ?? msg.body.length ?? 0) : 0;
+      if (bodyLen === 0 && flen === 0) {
+        Logger.info('jensen', 'getFilePart', 'file not found (0-length body).');
+        ondata('fail');
+        return 'fail';
+      }
+      flen += bodyLen;
       ondata(msg.body);
       Logger.info('jensen', 'getFilePart length', `${length} ${flen}`);
       if (flen >= length) {
@@ -1174,6 +1180,7 @@ Jensen.prototype.getFilePart = async function (filename, length, ondata, onprogr
     } else {
       Logger.info('jensen', 'getFilePart', 'file download fail.');
       ondata('fail');
+      return 'fail';
     }
   };
   this.onreceive = onprogress;
@@ -1236,7 +1243,13 @@ Jensen.prototype.getFile = async function (filename, length, ondata, onprogress)
   let flen = 0;
   let handler = (msg) => {
     if (msg != null) {
-      flen += msg.body.length || msg.body.byteLength;
+      const bodyLen = msg.body ? (msg.body.byteLength ?? msg.body.length ?? 0) : 0;
+      if (bodyLen === 0 && flen === 0) {
+        Logger.info('jensen', 'getFile', 'file not found (0-length body).');
+        ondata('fail');
+        return 'fail';
+      }
+      flen += bodyLen;
       ondata(msg.body);
       // Logger.info('jensen', 'getFile length', `${length} ${flen}`);
       if (flen >= length) {