python-trezor/trezorlib/debuglink.py

94 lines
2.6 KiB
Python

import messages_pb2 as proto
from transport import NotImplementedException
def pin_info(pin):
print "Device asks for PIN %s" % pin
def button_press(yes_no):
print "User pressed", '"y"' if yes_no else '"n"'
def pprint(msg):
return "<%s> (%d bytes):\n%s" % (msg.__class__.__name__, msg.ByteSize(), msg)
class DebugLink(object):
def __init__(self, transport, pin_func=pin_info, button_func=button_press):
self.transport = transport
self.pin_func = pin_func
self.button_func = button_func
def close(self):
self.transport.close()
def _call(self, msg, nowait=False):
print "DEBUGLINK SEND", pprint(msg)
self.transport.write(msg)
if nowait:
return
ret = self.transport.read_blocking()
print "DEBUGLINK RECV", pprint(ret)
return ret
def read_pin(self):
obj = self._call(proto.DebugLinkGetState())
print "Read PIN:", obj.pin
print "Read matrix:", obj.matrix
return (obj.pin, obj.matrix)
def read_pin_encoded(self):
pin, _ = self.read_pin()
pin_encoded = self.encode_pin(pin)
self.pin_func(pin_encoded)
return pin_encoded
def encode_pin(self, pin):
_, matrix = self.read_pin()
# Now we have real PIN and PIN matrix.
# We have to encode that into encoded pin,
# because application must send back positions
# on keypad, not a real PIN.
pin_encoded = ''.join([ str(matrix.index(p) + 1) for p in pin])
print "Encoded PIN:", pin_encoded
return pin_encoded
def read_layout(self):
obj = self._call(proto.DebugLinkGetState())
return obj.layout
def read_mnemonic(self):
obj = self._call(proto.DebugLinkGetState())
return obj.mnemonic
def read_node(self):
obj = self._call(proto.DebugLinkGetState())
return obj.node
def read_word(self):
obj = self._call(proto.DebugLinkGetState())
return (obj.word, obj.word_pos)
def read_entropy(self):
obj = self._call(proto.DebugLinkGetState())
return obj.entropy
def read_passphrase_protection(self):
obj = self._call(proto.DebugLinkGetState())
return obj.passphrase_protection
def press_button(self, yes_no):
print "Pressing", yes_no
self.button_func(yes_no)
self._call(proto.DebugLinkDecision(yes_no=yes_no), nowait=True)
def press_yes(self):
self.press_button(True)
def press_no(self):
self.press_button(False)
def stop(self):
self._call(proto.DebugLinkStop(), nowait=True)