From c4765dba833fe37e9842872a7a4a2c2045421783 Mon Sep 17 00:00:00 2001
From: Pedro Pedruzzi <240791+pedropedruzzi@users.noreply.github.com>
Date: Wed, 9 Jul 2025 23:46:11 -0300
Subject: [PATCH] Fix protobuf parser for new WA fields and unknown ones

---
 dump-messages.js | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/dump-messages.js b/dump-messages.js
index 5ed6fd6..a0cbf68 100644
--- a/dump-messages.js
+++ b/dump-messages.js
@@ -38,13 +38,10 @@
   function decodeProtobufWithState(spec, s) {
     const result = {};
     while (s.cursor < s.length) {
-      const header = s.data.getUint8(s.cursor); s.cursor += 1;
+      const header = decodeVarint(s);
       const field = header >> 3;
       const wireType = header & 0x7;
-      const fieldSpec = spec[field];
-      if (fieldSpec === undefined) {
-        throw `non-specced field ${field}`;
-      }
+      const fieldSpec = spec[field] ?? { type: "bytes", name: `unknown_${field}` };
       let fieldValue = null;
       if (wireType == 0) { // varint (int32, int64, uint32, uint64, sint32, sint64, bool, enum)
         fieldValue = decodeVarint(s);
@@ -63,6 +60,9 @@
         if (fieldSpec.type === "string") {
           fieldValue = utf8Decoder.decode(new DataView(s.data.buffer, s.data.byteOffset + s.cursor, length));
           s.cursor += length;
+        } else if (fieldSpec.type === "bytes") {
+          fieldValue = `(${length} bytes)`;
+          s.cursor += length;
         } else if (typeof fieldSpec.type === "object") {
           fieldValue = decodeProtobufWithState(fieldSpec.type, {
             data: new DataView(s.data.buffer, s.data.byteOffset + s.cursor, length),