bpo-41491: plistlib: accept hexadecimal integer values in xml plist files (GH-22764) (GH-22807)

(cherry picked from commit 3185267)

Co-authored-by: Ronald Oussoren <[email protected]>

Co-authored-by: Ronald Oussoren <[email protected]>

Author: miss-islington

Lib/plistlib.py

@@ -364,7 +364,11 @@ def end_false(self):
         self.add_object(False)
 
     def end_integer(self):
-        self.add_object(int(self.get_data()))
+        raw = self.get_data()
+        if raw.startswith('0x') or raw.startswith('0X'):
+            self.add_object(int(raw, 16))
+        else:
+            self.add_object(int(raw))
 
     def end_real(self):
         self.add_object(float(self.get_data()))

Lib/test/test_plistlib.py

@@ -499,6 +499,19 @@ def test_invalidreal(self):
         self.assertRaises(ValueError, plistlib.loads,
                           b"<plist><integer>not real</integer></plist>")
 
+    def test_integer_notations(self):
+        pl = b"<plist><integer>456</integer></plist>"
+        value = plistlib.loads(pl)
+        self.assertEqual(value, 456)
+
+        pl = b"<plist><integer>0xa</integer></plist>"
+        value = plistlib.loads(pl)
+        self.assertEqual(value, 10)
+
+        pl = b"<plist><integer>0123</integer></plist>"
+        value = plistlib.loads(pl)
+        self.assertEqual(value, 123)
+
     def test_xml_encodings(self):
         base = TESTDATA[plistlib.FMT_XML]
 

Misc/NEWS.d/next/Library/2020-10-19-14-02-09.bpo-41491.d1BUWH.rst

@@ -0,0 +1 @@
+plistlib: fix parsing XML plists with hexadecimal integer values