From 45f4fb5a681a1f831c6df3cd8b464042a8e7c43e Mon Sep 17 00:00:00 2001
From: serversdwn <brianharrison02@gmail.com>
Date: Thu, 12 Mar 2026 13:51:00 -0400
Subject: [PATCH] fix: bug where parser incorrectly preserves both DLE and XX

---
 parsers/s3_parser.py | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/parsers/s3_parser.py b/parsers/s3_parser.py
index 2bd97c6..e76a691 100644
--- a/parsers/s3_parser.py
+++ b/parsers/s3_parser.py
@@ -321,13 +321,8 @@ def parse_bw(blob: bytes, trailer_len: int, validate_checksum: bool) -> List[Fra
             i += 1
             continue
 
-        # AFTER_DLE
-        if b == DLE:
-            body.append(DLE)  # 10 10 => literal 10
-        else:
-            # Robust recovery: treat as literal DLE + byte
-            body.append(DLE)
-            body.append(b)
+        # AFTER_DLE: DLE XX => literal XX for any XX (full DLE stuffing)
+        body.append(b)
         state = IN_FRAME
         i += 1