db and settings encryption

src/history.py

@@ -2,6 +2,8 @@
 from sqlite3 import connect
 import settings
 from os import chdir
+import os.path
+from toxencryptsave import LibToxEncryptSave
 
 
 PAGE_SIZE = 42
@@ -17,6 +19,15 @@ class History(object):
     def __init__(self, name):
         self._name = name
         chdir(settings.ProfileHelper.get_path())
+        path = settings.ProfileHelper.get_path() + self._name + '.hstr'
+        if os.path.exists(path):
+            decr = LibToxEncryptSave.get_instance()
+            if decr.has_password():
+                with open(path, 'rb') as fin:
+                    data = fin.read()
+                data = decr.pass_decrypt(data)
+                with open(path, 'wb') as fout:
+                    fout.write(data)
         db = connect(name + '.hstr')
         cursor = db.cursor()
         cursor.execute('CREATE TABLE IF NOT EXISTS friends('
@@ -24,6 +35,16 @@ class History(object):
                        ')')
         db.close()
 
+    def save(self):
+        encr = LibToxEncryptSave.get_instance()
+        if encr.has_password():
+            path = settings.ProfileHelper.get_path() + self._name + '.hstr'
+            with open(path, 'rb') as fin:
+                data = fin.read()
+            data = encr.pass_encrypt(data)
+            with open(path, 'wb') as fout:
+                fout.write(data)
+
     def export(self, directory):
         path = settings.ProfileHelper.get_path() + self._name + '.hstr'
         new_path = directory + self._name + '.hstr'

src/profile.py

@@ -580,6 +580,7 @@ class Profile(Contact, Singleton):
                     if not self._history.friend_exists_in_db(friend.tox_id):
                         self._history.add_friend_to_db(friend.tox_id)
                     self._history.save_messages_to_db(friend.tox_id, messages)
+            self._history.save()
             del self._history
 
     def clear_history(self, num=None):

src/settings.py

@@ -18,6 +18,9 @@ class Settings(Singleton, dict):
         if os.path.isfile(self.path):
             with open(self.path) as fl:
                 data = fl.read()
+            inst = LibToxEncryptSave.get_instance()
+            if inst.has_password():
+                data = inst.pass_decrypt(data)
             try:
                 info = json.loads(data)
             except Exception as ex:
@@ -97,6 +100,9 @@ class Settings(Singleton, dict):
 
     def save(self):
         text = json.dumps(self)
+        inst = LibToxEncryptSave.get_instance()
+        if inst.has_password():
+            text = inst.pass_encrypt(text)
         with open(self.path, 'w') as fl:
             fl.write(text)