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load_device_by_mnemonic and recovery_device: expand unique mnemonic word prefix matches (#96)

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mruddy 2017-02-11 14:15:09 -05:00 committed by Pavol Rusnak
parent ce54014f51
commit a2792cda19
2 changed files with 19 additions and 4 deletions
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7
trezorctl
View File

@ -271,7 +271,7 @@ class Commands(object):
'matrix': types.RecoveryDeviceType_Matrix }
return self.client.recovery_device(args.words, args.passphrase_protection,
args.pin_protection, args.label, 'english',
typemap[args.type])
typemap[args.type], args.expand)
def load_device(self, args):
if not args.mnemonic and not args.xprv:
@ -282,7 +282,8 @@ class Commands(object):
return self.client.load_device_by_mnemonic(mnemonic, args.pin,
args.passphrase_protection,
args.label, 'english',
args.skip_checksum)
args.skip_checksum,
args.expand)
else:
return self.client.load_device_by_xprv(args.xprv, args.pin,
args.passphrase_protection,
@ -456,6 +457,7 @@ class Commands(object):
recovery_device.arguments = (
(('-w', '--words'), {'type': int, 'choices': [12, 18, 24], 'default': 24}),
(('-e', '--expand'), {'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': ''}),
@ -464,6 +466,7 @@ class Commands(object):
load_device.arguments = (
(('-m', '--mnemonic'), {'type': str, 'nargs': '+'}),
(('-e', '--expand'), {'action': 'store_true', 'default': False}),
(('-x', '--xprv'), {'type': str}),
(('-p', '--pin'), {'type': str, 'default': ''}),
(('-r', '--passphrase-protection'), {'action': 'store_true', 'default': False}),

16
trezorlib/client.py
View File

@ -277,6 +277,8 @@ class TextUIMixin(object):
word = raw_input()
except NameError:
word = input() # Python 3
if self.expand:
word = self.mnemonic_wordlist.expand_word(word)
return proto.WordAck(word=word)
class DebugLinkMixin(object):
@ -812,7 +814,7 @@ class ProtocolMixin(object):
@field('message')
@expect(proto.Success)
def recovery_device(self, word_count, passphrase_protection, pin_protection, label, language, type=types.RecoveryDeviceType_ScrambledWords):
def recovery_device(self, word_count, passphrase_protection, pin_protection, label, language, type=types.RecoveryDeviceType_ScrambledWords, expand=False):
if self.features.initialized:
raise Exception("Device is initialized already. Call wipe_device() and try again.")
@ -820,6 +822,12 @@ class ProtocolMixin(object):
raise Exception("Invalid word count. Use 12/18/24")
self.recovery_matrix_first_pass = True
self.expand = expand
if self.expand:
# optimization to load the wordlist once, instead of for each recovery word
self.mnemonic_wordlist = Mnemonic('english')
res = self.call(proto.RecoveryDevice(word_count=int(word_count),
passphrase_protection=bool(passphrase_protection),
pin_protection=bool(pin_protection),
@ -858,7 +866,7 @@ class ProtocolMixin(object):
@field('message')
@expect(proto.Success)
def load_device_by_mnemonic(self, mnemonic, pin, passphrase_protection, label, language, skip_checksum=False):
def load_device_by_mnemonic(self, mnemonic, pin, passphrase_protection, label, language, skip_checksum=False, expand=False):
# Convert mnemonic to UTF8 NKFD
mnemonic = Mnemonic.normalize_string(mnemonic)
@ -866,6 +874,10 @@ class ProtocolMixin(object):
mnemonic = normalize_nfc(mnemonic)
m = Mnemonic('english')
if expand:
mnemonic = m.expand(mnemonic)
if not skip_checksum and not m.check(mnemonic):
raise Exception("Invalid mnemonic checksum")