Implemented RecoveryDevice

cmd.py

@@ -113,6 +113,10 @@ class Commands(object):
     def wipe_device(self, args):
         return self.client.wipe_device()
 
+    def recovery_device(self, args):
+        return self.client.recovery_device(args.words, args.passphrase_protection,
+                                    args.pin_protection, args.label, 'english')
+
     def load_device(self, args):
         if not args.mnemonic and not args.xprv:
             raise Exception("Please provide mnemonic or xprv")
@@ -127,7 +131,8 @@ class Commands(object):
                         args.passphrase_protection, args.label, 'english')
 
     def reset_device(self, args):
-        return self.client.reset_device(True, args.strength, args.passphrase, args.pin, args.label, 'english')
+        return self.client.reset_device(True, args.strength, args.passphrase_protection,
+                                        args.pin_protection, args.label, 'english')
 
     def sign_message(self, args):
         return pb2json(self.client.sign_message(args.n, args.message), {'message': args.message})
@@ -155,6 +160,7 @@ class Commands(object):
     change_pin.help = 'Change new PIN or remove existing'
     list_coins.help = 'List all supported coin types by the device'
     wipe_device.help = 'Reset device to factory defaults and remove all private data.'
+    recovery_device.help = 'Start safe recovery workflow'
     load_device.help = 'Load custom configuration to the device'
     reset_device.help = 'Perform device setup and generate new seed'
     sign_message.help = 'Sign message using address of given path'
@@ -190,6 +196,13 @@ class Commands(object):
     
     wipe_device.arguments = ()
 
+    recovery_device.arguments = (
+        (('-w', '--words'), {'type': int}),
+        (('-p', '--pin-protection'), {'action': 'store_true', 'default': False}),
+        (('-r', '--passphrase-protection'), {'action': 'store_true', 'default': False}),
+        (('-l', '--label'), {'type': str, 'default': ''}),
+    )
+
     load_device.arguments = (
         (('-m', '--mnemonic'), {'type': str, 'nargs': '+'}),
         (('-x', '--xprv'), {'type': str}),
@@ -200,8 +213,8 @@ class Commands(object):
 
     reset_device.arguments = (
         (('-t', '--strength'), {'type': int, 'choices': [128, 192, 256], 'default': 128}),
-        (('-p', '--pin'), {'action': 'store_true', 'default': False}),
-        (('-r', '--passphrase'), {'action': 'store_true', 'default': False}),
+        (('-p', '--pin-protection'), {'action': 'store_true', 'default': False}),
+        (('-r', '--passphrase-protection'), {'action': 'store_true', 'default': False}),
         (('-l', '--label'), {'type': str, 'default': ''}),
     )
 

trezorlib/client.py

@@ -26,6 +26,9 @@ def pin_func(input_text, message=None):
 def passphrase_func(input_text):
     return show_input(input_text)
 
+def word_func():
+    return raw_input("Enter one word of mnemonic: ")
+
 class CallException(Exception):
     pass
 
@@ -39,7 +42,7 @@ class TrezorClient(object):
     def __init__(self, transport, debuglink=None,
                  message_func=show_message, input_func=show_input,
                  pin_func=pin_func, passphrase_func=passphrase_func,
-                 blockchain_api=None, debug=False):
+                 word_func=word_func, blockchain_api=None, debug=False):
         self.transport = transport
         self.debuglink = debuglink
 
@@ -47,6 +50,7 @@ class TrezorClient(object):
         self.input_func = input_func
         self.pin_func = pin_func
         self.passphrase_func = passphrase_func
+        self.word_func = word_func
 
         self.debug = debug
 
@@ -325,18 +329,38 @@ class TrezorClient(object):
         self.init_device()
         return ret
 
+    def recovery_device(self, word_count, passphrase_protection, pin_protection, label, language):
+        if word_count not in (12, 18, 24):
+            raise Exception("Invalid word count. Use 12/18/24")
+        
+        res = self.call(proto.RecoveryDevice(word_count=int(word_count),
+                                   passphrase_protection=bool(passphrase_protection),
+                                   pin_protection=bool(pin_protection),
+                                   label=label,
+                                   language=language))
+
+        while isinstance(res, proto.WordRequest):
+            word = self.word_func()
+            res = self.call(proto.WordAck(word=word))
+
+        if not isinstance(res, proto.Success):
+            raise Exception("Recovery device failed")
+
+        self.init_device()
+        return True
+
     def reset_device(self, display_random, strength, passphrase_protection, pin_protection, label, language):
         if self.features.initialized:
             raise Exception("Device is initialized already. Call wipe_device() and try again.")
 
         # Begin with device reset workflow
         msg = proto.ResetDevice(display_random=display_random,
-                                           strength=strength,
-                                           language=language,
-                                           passphrase_protection=bool(passphrase_protection),
-                                           pin_protection=bool(pin_protection),
-                                           label=label
-                                           )
+                                strength=strength,
+                                language=language,
+                                passphrase_protection=bool(passphrase_protection),
+                                pin_protection=bool(pin_protection),
+                                label=label)
+
         resp = self.call(msg)
         if not isinstance(resp, proto.EntropyRequest):
             raise Exception("Invalid response, expected EntropyRequest")