labels plugin: fix it. and extend to cli/daemon.

plugins/labels/__init__.py

@@ -5,5 +5,5 @@ description = ' '.join([
     _("Save your wallet labels on a remote server, and synchronize them across multiple devices where you use Electrum."),
     _("Labels, transactions IDs and addresses are encrypted before they are sent to the remote server.")
 ])
-available_for = ['qt', 'kivy']
+available_for = ['qt', 'kivy', 'cmdline']
 

plugins/labels/cmdline.py

@@ -0,0 +1,11 @@
+from .labels import LabelsPlugin
+from electrum.plugins import hook
+
+class Plugin(LabelsPlugin):
+
+    @hook
+    def load_wallet(self, wallet, window):
+        self.start_wallet(wallet)
+
+    def on_pulled(self, wallet):
+        self.print_error('labels pulled from server')

plugins/labels/labels.py

@@ -9,6 +9,7 @@ import base64
 
 import electrum
 from electrum.plugins import BasePlugin, hook
+from electrum.crypto import aes_encrypt_with_iv, aes_decrypt_with_iv
 from electrum.i18n import _
 
 
@@ -21,14 +22,14 @@ class LabelsPlugin(BasePlugin):
 
     def encode(self, wallet, msg):
         password, iv, wallet_id = self.wallets[wallet]
-        encrypted = electrum.bitcoin.aes_encrypt_with_iv(password, iv,
+        encrypted = aes_encrypt_with_iv(password, iv,
                                                          msg.encode('utf8'))
         return base64.b64encode(encrypted).decode()
 
     def decode(self, wallet, message):
         password, iv, wallet_id = self.wallets[wallet]
         decoded = base64.b64decode(message)
-        decrypted = electrum.bitcoin.aes_decrypt_with_iv(password, iv, decoded)
+        decrypted = aes_decrypt_with_iv(password, iv, decoded)
         return decrypted.decode('utf8')
 
     def get_nonce(self, wallet):