From: Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com>
Date: Mon, 22 Jun 2020 08:46:11 +0000 (-0700)
Subject: bpo-41068: Fix read after write in zipfile for non-ASCII files names. (GH-21040)
X-Git-Tag: v3.9.0b4~53
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=c916c48afc02c26a50843c7b381a2b567bb72e46;p=thirdparty%2FPython%2Fcpython.git

bpo-41068: Fix read after write in zipfile for non-ASCII files names. (GH-21040)

(cherry picked from commit 36ff513f82e372ed3cea0bf7cbdf15a1ef6dab9e)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
---

diff --git a/Lib/test/test_zipfile.py b/Lib/test/test_zipfile.py
index c9ca1ddaafe1..b7bc218d17a3 100644
--- a/Lib/test/test_zipfile.py
+++ b/Lib/test/test_zipfile.py
@@ -1600,6 +1600,11 @@ class OtherTests(unittest.TestCase):
             self.assertEqual(zf.filelist[0].filename, "foo.txt")
             self.assertEqual(zf.filelist[1].filename, "\xf6.txt")
 
+    def test_read_after_write_unicode_filenames(self):
+        with zipfile.ZipFile(TESTFN2, 'w') as zipfp:
+            zipfp.writestr('приклад', b'sample')
+            self.assertEqual(zipfp.read('приклад'), b'sample')
+
     def test_exclusive_create_zip_file(self):
         """Test exclusive creating a new zipfile."""
         unlink(TESTFN2)
diff --git a/Lib/zipfile.py b/Lib/zipfile.py
index 8903d6a42ee4..915698f9e058 100644
--- a/Lib/zipfile.py
+++ b/Lib/zipfile.py
@@ -1534,7 +1534,7 @@ class ZipFile:
                 # strong encryption
                 raise NotImplementedError("strong encryption (flag bit 6)")
 
-            if zinfo.flag_bits & 0x800:
+            if fheader[_FH_GENERAL_PURPOSE_FLAG_BITS] & 0x800:
                 # UTF-8 filename
                 fname_str = fname.decode("utf-8")
             else:
diff --git a/Misc/NEWS.d/next/Library/2020-06-22-10-25-39.bpo-41068._bX2BW.rst b/Misc/NEWS.d/next/Library/2020-06-22-10-25-39.bpo-41068._bX2BW.rst
new file mode 100644
index 000000000000..20580c7886fa
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2020-06-22-10-25-39.bpo-41068._bX2BW.rst
@@ -0,0 +1,2 @@
+Fixed reading files with non-ASCII names from ZIP archive directly after
+writing them.