From 84ae911e093f54567fbe382a585a7f16c6ed6056 Mon Sep 17 00:00:00 2001
From: zeromus <zeromus@users.noreply.github.com>
Date: Sat, 5 Jun 2021 05:16:26 -0400
Subject: [PATCH] for some reason 7z dropped the signature for zip at some
 point. so add our own PK signature checker

---
 src/drivers/win/archive.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/drivers/win/archive.cpp b/src/drivers/win/archive.cpp
index b6723a2b..cf9672ab 100644
--- a/src/drivers/win/archive.cpp
+++ b/src/drivers/win/archive.cpp
@@ -370,6 +370,18 @@ void initArchiveSystem()
 		for(int j=0;j<len;j++)
 			fr.signature.push_back(((char*)prop.bstrVal)[j]);
 
+		//for some reason 7z dropped the signature for zip at some point
+		//it was working perfectly fine before...
+		GetHandlerProperty2(i,NArchive::kExtension,&prop);
+		if(!wcscmp((wchar_t*)prop.bstrVal,L"zip z01 zipx jar xpi odt ods docx xlsx epub ipa apk appx"))
+		{
+			if(fr.signature.size() == 0)
+			{
+				fr.signature.push_back('P');
+				fr.signature.push_back('K');
+			}
+		}
+
 		GetHandlerProperty2(i,NArchive::kClassID,&prop);
 		memcpy((char*)&fr.guid,(char*)prop.bstrVal,16);