gh-91387: Strip trailing slash from tarfile longname directories (GH-32423)

Co-authored-by: Brett Cannon <brett@python.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/Lib/tarfile.py b/Lib/tarfile.py
index 8d43d0da7b9..169c88d63f7 100755
--- a/Lib/tarfile.py
+++ b/Lib/tarfile.py
@@ -1163,6 +1163,11 @@ class TarInfo(object):
         # header information.
         self._apply_pax_info(tarfile.pax_headers, tarfile.encoding, tarfile.errors)
 
+        # Remove redundant slashes from directories. This is to be consistent
+        # with frombuf().
+        if self.isdir():
+            self.name = self.name.rstrip("/")
+
         return self
 
     def _proc_gnulong(self, tarfile):
@@ -1185,6 +1190,11 @@ class TarInfo(object):
         elif self.type == GNUTYPE_LONGLINK:
             next.linkname = nts(buf, tarfile.encoding, tarfile.errors)
 
+        # Remove redundant slashes from directories. This is to be consistent
+        # with frombuf().
+        if next.isdir():
+            next.name = next.name.removesuffix("/")
+
         return next
 
     def _proc_sparse(self, tarfile):