Enable unencrypted wallet import and export

lbry/extras/daemon/daemon.py

@@ -1345,8 +1345,10 @@ class Daemon(metaclass=JSONRPCServerType):
             (str) data
 
         """
-        assert password is not None, "passwordless use is not implemented yet"
+        # assert password is not None, "passwordless use is not implemented yet"
         wallet = self.wallet_manager.get_wallet_or_default(wallet_id)
+        if (password is None):
+            return wallet.pack()
         encrypted = wallet.pack(password)
         return encrypted.decode()
 
@@ -1370,7 +1372,7 @@ class Daemon(metaclass=JSONRPCServerType):
         Returns:
             (str) data
         """
-        assert not data.strip().startswith("{"), "unencrypted wallet import is not implemented yet"
+        # assert not data.strip().startswith("{"), "unencrypted wallet import is not implemented yet"
         wallet = self.wallet_manager.get_wallet_or_default(wallet_id)
         added_accounts, merged_accounts = wallet.merge(self.wallet_manager, password, data)
         for new_account in itertools.chain(added_accounts, merged_accounts):

lbry/wallet/wallet.py

@@ -163,15 +163,19 @@ class Wallet:
             h.update(account.hash)
         return h.digest()
 
-    def pack(self, password):
+    def pack(self, password=None):
         assert not self.is_locked, "Cannot pack a wallet with locked/encrypted accounts."
         new_data = json.dumps(self.to_dict())
+        if password is None:
+            return new_data.encode()
         new_data_compressed = zlib.compress(new_data.encode())
         return better_aes_encrypt(password, new_data_compressed)
 
     @classmethod
-    def unpack(cls, password, encrypted):
-        decrypted = better_aes_decrypt(password, encrypted)
+    def unpack(cls, password, data):
+        if password is None:
+            return json.loads(data)
+        decrypted = better_aes_decrypt(password, data)
         try:
             decompressed = zlib.decompress(decrypted)
         except zlib.error as e:

tests/integration/blockchain/test_wallet_commands.py

@@ -491,3 +491,21 @@ class WalletEncryptionAndSynchronization(CommandTestCase):
             daemon2.wallet_manager.default_account.channel_keys,
             daemon.wallet_manager.default_wallet.accounts[1].channel_keys
         )
+
+        # test without passwords
+        daemon2.jsonrpc_preference_set("three", "3")
+        jsondata = await daemon2.jsonrpc_wallet_export()
+        await daemon.jsonrpc_wallet_import(data=jsondata, blocking=True)
+        self.assertDictEqual(
+                    # "two" key added and "conflict" value changed to "2"
+                    daemon.jsonrpc_preference_get(),
+                    {
+                        "one": "1",
+                        "two": "2",
+                        "three": "3",
+                        "conflict": "2",
+                        "another": "B",
+                        "fruit": ["peach", "apricot"]
+                    }
+                )
+