restore unprotected etree on save

CHANGELOG.rst

@@ -1,7 +1,10 @@
 3.2.0 - 2019-
 ------------------
-- fix for binary attachments missing Compressed attribute
+- fix #181 - binary attachments missing Compressed attribute unparseable
 - added PyKeePass.xml()
+- fix #129 - protected multiline fields missing newline
+- added tag searching - #182
+- fix problem where entries are protected after save
 
 3.1.0 - 2019-10-24
 ------------------

pykeepass/kdbx_parsing/common.py

@@ -6,6 +6,7 @@
     Adapter, BitStruct, BitsSwapped, Container, Flag, Padding, ListContainer, Mapping, GreedyBytes, Int32ul, Switch
 )
 from lxml import etree
+from copy import deepcopy
 import base64
 import unicodedata
 import zlib
@@ -198,8 +199,9 @@ def _decode(self, tree, con, path):
         return tree
 
     def _encode(self, tree, con, path):
+        tree_copy = deepcopy(tree)
         cipher = self.get_cipher(self.protected_stream_key(con))
-        for elem in tree.xpath(self.unprotected_xpath):
+        for elem in tree_copy.xpath(self.unprotected_xpath):
             if elem.text is not None:
                 elem.text = base64.b64encode(
                     cipher.encrypt(

pykeepass/pykeepass.py

@@ -11,6 +11,7 @@
 import re
 import uuid
 import zlib
+from copy import deepcopy
 
 from construct import Container, ChecksumError
 from lxml import etree
@@ -69,15 +70,13 @@ def save(self, filename=None, transformed_key=None):
         if not filename:
             filename = self.filename
 
-        with open(filename, 'wb') as f:
-            f.write(
-                KDBX.build(
-                    self.kdbx,
-                    password=self.password,
-                    keyfile=self.keyfile,
-                    transformed_key=transformed_key
-                )
-            )
+        KDBX.build_file(
+            self.kdbx,
+            filename,
+            password=self.password,
+            keyfile=self.keyfile,
+            transformed_key=transformed_key
+        )
 
     @property
     def version(self):

requirements.txt

@@ -1,6 +1,6 @@
-lxml==4.3.4
-pycryptodome==3.8.2
-construct==2.9.45
-argon2-cffi==19.1.0
+lxml==4.4.0
+pycryptodome==3.9.4
+construct==2.9.51
+argon2-cffi==19.2.0
 python-dateutil==2.8.0
 future==0.17.1

tests/tests.py

@@ -732,27 +732,31 @@ def test_129(self):
         e = self.kp.find_entries(title='foobar_entry', first=True)
         self.assertEqual(e.get_custom_property('multiline'), 'hello\nworld')
 
+    def test_pull102(self):
+        # PR 102 - entries are protected after save
+        # reset self.kp
+        self.setUp()
+        e = self.kp.find_entries(title='foobar_entry', first=True)
+        self.assertEqual(e.password, 'foobar')
+        self.kp.save()
+        self.assertEqual(e.password, 'foobar')
+
 
 class EntryFindTests4(KDBX4Tests, EntryFindTests3):
     pass
 
-
 class GroupFindTests4(KDBX4Tests, GroupFindTests3):
     pass
 
-
 class EntryTests4(KDBX4Tests, EntryTests3):
     pass
 
-
 class GroupTests3(KDBX4Tests, GroupTests3):
     pass
 
-
 class AttachmentTests4(KDBX4Tests, AttachmentTests3):
     pass
 
-
 class PyKeePassTests4(KDBX4Tests, PyKeePassTests3):
     pass