From 6ba7944bb230d76c9c5e5a9ad26850589fa7409f Mon Sep 17 00:00:00 2001
From: Claus Lohmar <claus.lohmar@lohmar.co.uk>
Date: Tue, 21 Jul 2026 19:37:27 +0000
Subject: [PATCH] fix: add unrar-free, use 7z for .zip extraction (more
 reliable)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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- Added unrar-free package to backend installer
- Added .rar to archive extension detection
- Changed .zip extraction from unzip → 7z (x -y)
  7z handles .zip, .7z, and other formats with one tool
- Added unrar handler for .rar files
---
 backend/converter.py | 5 +++--
 backend/install.sh   | 1 +
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/backend/converter.py b/backend/converter.py
index 2a5b1f1..1ae989b 100644
--- a/backend/converter.py
+++ b/backend/converter.py
@@ -19,7 +19,7 @@ STAGING_OUT = Path("/mnt/converter/out")
 
 DISK_EXTENSIONS = {".vmdk", ".qcow2", ".qcow", ".img", ".raw", ".vhd", ".vhdx"}
 
-ARCHIVE_EXTENSIONS = {".7z", ".zip", ".tar.gz", ".tgz", ".tar", ".gz", ".bz2", ".xz"}
+ARCHIVE_EXTENSIONS = {".7z", ".zip", ".rar", ".tar.gz", ".tgz", ".tar", ".gz", ".bz2", ".xz"}
 
 MIN_DISK_BYTES = 1024
 
@@ -56,7 +56,8 @@ def extract_if_needed(filename: str) -> Path:
     # Determine extraction tool
     tool_map = {
         ".7z":     ("7z",   ["7z", "x", "-y", str(filepath)]),
-        ".zip":    ("unzip", ["unzip", "-o", str(filepath)]),
+        ".zip":    ("7z",   ["7z", "x", "-y", str(filepath)]),
+        ".rar":    ("unrar", ["unrar", "x", "-y", str(filepath)]),
         ".tar.gz": ("tar",   ["tar", "-xzf", str(filepath)]),
         ".tgz":    ("tar",   ["tar", "-xzf", str(filepath)]),
         ".tar":    ("tar",   ["tar", "-xf", str(filepath)]),
diff --git a/backend/install.sh b/backend/install.sh
index 3d5e895..5349127 100755
--- a/backend/install.sh
+++ b/backend/install.sh
@@ -110,6 +110,7 @@ REQUIRED=(
     libguestfs-tools   "guestfish"
     p7zip-full         "7z"
     unzip              "unzip"
+    unrar-free          "unrar"
     tar                "tar"
     gzip               "gunzip"
     bzip2              "bunzip2"