Fix Tune validation

src/pages/Upload.tsx

@@ -319,16 +319,24 @@ const UploadPage = () => {
       }
 
       const parsed = tuneParser.parse(await file.arrayBuffer());
+      const { signature } = parsed.getTune().details;
+
+      if (!parsed.isValid()) {
+        return {
+          result: false,
+          message: 'Tune file is not valid or not supported!',
+        };
+      }
 
       try {
-        await fetchINIFile(parsed.getTune().details.signature);
+        await fetchINIFile(signature);
       } catch (e) {
         signatureNotSupportedWarning((e as Error).message);
       }
 
       return {
-        result: parsed.isValid(),
-        message: 'Tune file is not valid!',
+        result: true,
+        message: '',
       };
     });
   };

src/utils/tune/TuneParser.ts

@@ -23,16 +23,16 @@ class TuneParser {
     const bibliography = xml.getElementsByTagName('bibliography')[0]?.attributes as any;
     const versionInfo = xml.getElementsByTagName('versionInfo')[0]?.attributes as any;
 
-    if (!xmlPages || !bibliography || !versionInfo) {
+    if (!xmlPages || !versionInfo) {
       this.isTuneValid = false;
 
       return this;
     }
 
     this.tune.details = {
-      author: bibliography.author.value,
-      tuneComment: `${bibliography.tuneComment.value}`.trim(),
-      writeDate: bibliography.writeDate.value,
+      author: bibliography ? bibliography.author.value : '',
+      tuneComment: bibliography ? `${bibliography.tuneComment.value}`.trim() : '',
+      writeDate: bibliography ? bibliography.writeDate.value : '',
       fileFormat: versionInfo.fileFormat.value,
       firmwareInfo: versionInfo.firmwareInfo.value,
       nPages: Number.parseInt(versionInfo.nPages.value, 2),