From 5352d93fae187da6978c6279a051c260c862ef9c Mon Sep 17 00:00:00 2001
From: tke <tobias.kessels@certbw.de>
Date: Fri, 22 Mar 2024 14:28:54 +0100
Subject: [PATCH] Added Libarchive-Version tarsums

---
 tools/libarchivesum.py | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 tools/libarchivesum.py

diff --git a/tools/libarchivesum.py b/tools/libarchivesum.py
new file mode 100644
index 0000000..b8bb348
--- /dev/null
+++ b/tools/libarchivesum.py
@@ -0,0 +1,34 @@
+import hashlib
+import argparse
+import sys
+
+try:
+    import libarchive
+except ImportError:
+    sys.stderr.write('The libarchive package is missing. Please install libarchive-c first.\n\nsudo apt install python3-libarchive-c\n\n')
+    sys.exit(1)
+
+parser = argparse.ArgumentParser()
+parser.add_argument('infile', nargs="+")
+parser.add_argument('-c', '--hashtype', default="md5", choices=hashlib.algorithms_available)
+args = parser.parse_args()
+
+def hash_files_in_archive(archive_path):
+    try:
+        with libarchive.file_reader(archive_path) as archive:
+            for entry in archive:
+                hasher = hashlib.new(args.hashtype)
+                for block in entry.get_blocks():
+                    hasher.update(block)
+                print(f'{hasher.hexdigest()}  {entry.pathname}')
+    except AttributeError:
+        sys.stderr.write("It seems you're using a version of libarchive that doesn't have the 'file_reader' attribute. "
+                         "This script requires 'python-libarchive-c'. Please ensure it's installed.\n")
+        sys.exit(2)
+
+# Example usage:
+for infile in args.infile:
+    try:
+        hash_files_in_archive(infile)
+    except libarchive.exception.ArchiveError as e:
+        sys.stderr.write(f'Failed to open archive file {infile}: {e}\n')