deseed command

electrum

@@ -24,8 +24,8 @@ from decimal import Decimal
 
 from electrum import Wallet, SecretToASecret, WalletSynchronizer, format_satoshis
 
-known_commands = ['help', 'validateaddress', 'balance', 'contacts', 'create', 'restore', 'payto', 'sendtx', 'password', 'addresses', 'history', 'label', 'mktx','seed','import','signmessage','verifymessage','eval']
-offline_commands = ['password', 'mktx', 'history', 'label', 'contacts', 'help', 'validateaddress', 'signmessage', 'verifymessage', 'eval', 'create', 'addresses', 'import', 'seed']
+known_commands = ['help', 'validateaddress', 'balance', 'contacts', 'create', 'restore', 'payto', 'sendtx', 'password', 'addresses', 'history', 'label', 'mktx','seed','import','signmessage','verifymessage','eval','deseed']
+offline_commands = ['password', 'mktx', 'history', 'label', 'contacts', 'help', 'validateaddress', 'signmessage', 'verifymessage', 'eval', 'create', 'addresses', 'import', 'seed','deseed']
 protected_commands = ['payto', 'password', 'mktx', 'seed', 'import','signmessage' ]
 
 if __name__ == '__main__':
@@ -237,6 +237,8 @@ if __name__ == '__main__':
             print "options: --fee, --fromaddr, --changeaddr"
         elif cmd2 == 'seed':
             print "show generation seed of your wallet. password protected."
+        elif cmd2 == 'deseed':
+            print "remove the seed of your wallet."
         elif cmd2 == 'eval':
             print "Run python eval() on an object\nSyntax: eval <expression>\nExample: eval \"wallet.aliases\""
 
@@ -245,6 +247,16 @@ if __name__ == '__main__':
         seed = wallet.pw_decode( wallet.seed, password)
         print seed, '"'+' '.join(mnemonic.mn_encode(seed))+'"'
 
+    elif cmd == 'deseed':
+        print "Warning: you are going to remove the seed from this wallet, which will forbid to send coins.\nPlease make sure that you have saved the seed elsewhere."
+        if raw_input("Are you sure you want to continue? (y/n) ") in ['y','Y','yes']:
+            wallet.seed = ''
+            wallet.use_encryption = False
+            wallet.save()
+            print "Done."
+        else:
+            print "Action canceled."
+
     elif cmd == 'validateaddress':
         addr = args[1]
         print wallet.is_valid(addr)

lib/gui.py

@@ -60,6 +60,9 @@ def numbify(entry, is_int = False):
 
 def show_seed_dialog(wallet, password, parent):
     from electrum import mnemonic
+    if not wallet.seed:
+        show_message("No seed")
+        return
     try:
         seed = wallet.pw_decode( wallet.seed, password)
     except:
@@ -483,6 +486,10 @@ def password_dialog(parent):
     if result != gtk.RESPONSE_CANCEL: return pw
 
 def change_password_dialog(wallet, parent, icon):
+    if not wallet.seed:
+        show_message("No seed")
+        return
+
     if parent:
         msg = 'Your wallet is encrypted. Use this dialog to change the password. To disable wallet encryption, enter an empty new password.' if wallet.use_encryption else 'Your wallet keys are not encrypted'
     else:

lib/gui_qt.py

@@ -695,6 +695,11 @@ class ElectrumWindow(QMainWindow):
     @staticmethod
     def show_seed_dialog(wallet, parent=None):
         from electrum import mnemonic
+
+        if not wallet.seed:
+            QMessageBox.information(parent, 'Message', 'No seed', 'OK')
+            return
+
         if wallet.use_encryption:
             password = parent.password_dialog()
             if not password: return
@@ -852,6 +857,11 @@ class ElectrumWindow(QMainWindow):
 
     @staticmethod
     def change_password_dialog( wallet, parent=None ):
+
+        if not wallet.seed:
+            QMessageBox.information(parent, 'Message', 'No seed', 'OK')
+            return
+
         d = QDialog(parent)
         d.setModal(1)