read command line arguments from stdin if '-' is passed

electrum

@@ -80,14 +80,11 @@ from electrum.commands import get_parser, known_commands, Commands, config_varia
 # get password routine
 def prompt_password(prompt, confirm=True):
     import getpass
-    if sys.stdin.isatty():
-        password = getpass.getpass(prompt)
-        if password and confirm:
-            password2 = getpass.getpass("Confirm: ")
-            if password != password2:
-                sys.exit("Error: Passwords do not match.")
-    else:
-        password = raw_input(prompt)
+    password = getpass.getpass(prompt)
+    if password and confirm:
+        password2 = getpass.getpass("Confirm: ")
+        if password != password2:
+            sys.exit("Error: Passwords do not match.")
     if not password:
         password = None
     return password
@@ -204,6 +201,20 @@ def run_cmdline(config):
     # options
     args += map(lambda x: config.get(x), cmd.options)
 
+    # pipe data
+    for i, arg in enumerate(args):
+        if arg == '-':
+            if not sys.stdin.isatty():
+                pipe_data = sys.stdin.read()
+                try:
+                    pipe_data = json.loads(pipe_data)
+                except:
+                    pass
+                args[i] = pipe_data
+                break
+            else:
+                raise BaseException('Cannot get argument from stdin')
+
     # instanciate wallet for command-line
     storage = WalletStorage(config.get_wallet_path())
 
@@ -272,14 +283,16 @@ def run_cmdline(config):
     always_hook('cmdline_load_wallet', wallet)
 
     # important warning
-    if cmd.name in ['dumpprivkey', 'dumpprivkeys']:
+    if cmd.name in ['getprivatekeys', 'dumpprivkeys']:
         print_stderr("WARNING: ALL your private keys are secret.")
         print_stderr("Exposing a single private key can compromise your entire wallet!")
         print_stderr("In particular, DO NOT use 'redeem private key' services proposed by third parties.")
 
     # commands needing password
-    if cmd.requires_password:
-        if wallet.use_encryption:
+    if cmd.requires_password and wallet.use_encryption:
+        if config.get('password'):
+            password = config.get('password')
+        else:
             password = prompt_password('Password:', False)
             if not password:
                 print_msg("Error: Password required")
@@ -290,8 +303,6 @@ def run_cmdline(config):
             except InvalidPassword:
                 print_msg("Error: This password does not decode this wallet.")
                 sys.exit(1)
-        else:
-            password = None
     else:
         password = None
 

lib/commands.py

@@ -239,8 +239,11 @@ class Commands:
 
     @command('wp')
     def getprivatekeys(self, address):
-        """Get the private keys of an address. Address must be in wallet."""
-        return self.wallet.get_private_key(address, self.password)
+        """Get the private keys of a wallet address, or list of wallet addresses."""
+        is_list = type(address) is list
+        domain = address if is_list else [address]
+        out = [self.wallet.get_private_key(address, self.password) for address in domain]
+        return out if is_list else out[0]
 
     @command('w')
     def ismine(self, address):
@@ -248,10 +251,9 @@ class Commands:
         return self.wallet.is_mine(address)
 
     @command('wp')
-    def dumpprivkeys(self, domain=None):
+    def dumpprivkeys(self):
         """Dump private keys from your wallet"""
-        if domain is None:
-            domain = self.wallet.addresses(True)
+        domain = self.wallet.addresses(True)
         return [self.wallet.get_private_key(address, self.password) for address in domain]
 
     @command('')
@@ -353,15 +355,16 @@ class Commands:
 
     @command('n')
     def sweep(self, privkey, destination, tx_fee=None, nocheck=False):
-        """Sweep private key. Returns a transaction that spends UTXOs from
+        """Sweep private keys. Returns a transaction that spends UTXOs from
         privkey to a destination address. The transaction is not
         broadcasted."""
+        privkeys = privkey if type(privkey) is list else [privkey]
         self.nocheck = nocheck
         dest = self._resolver(destination)
         if tx_fee is None:
             tx_fee = 0.0001
         fee = int(Decimal(tx_fee)*COIN)
-        return Transaction.sweep([privkey], self.network, dest, fee)
+        return Transaction.sweep(privkeys, self.network, dest, fee)
 
     @command('wp')
     def signmessage(self, address, message):