96 lines
3.3 KiB
Python
96 lines
3.3 KiB
Python
#!/usr/bin/env python2
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# -*- mode: python -*-
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#
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# Electrum - lightweight Bitcoin client
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# Copyright (C) 2016 The Electrum developers
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#
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# Permission is hereby granted, free of charge, to any person
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# obtaining a copy of this software and associated documentation files
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# (the "Software"), to deal in the Software without restriction,
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# including without limitation the rights to use, copy, modify, merge,
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# publish, distribute, sublicense, and/or sell copies of the Software,
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# and to permit persons to whom the Software is furnished to do so,
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# subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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from struct import pack
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from electrum.wallet import BIP44_Wallet
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class BIP44_HW_Wallet(BIP44_Wallet):
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'''A BIP44 hardware wallet base class.'''
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# Derived classes must set:
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# - device
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# - DEVICE_IDS
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# - wallet_type
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restore_wallet_class = BIP44_Wallet
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max_change_outputs = 1
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def __init__(self, storage):
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BIP44_Wallet.__init__(self, storage)
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# Errors and other user interaction is done through the wallet's
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# handler. The handler is per-window and preserved across
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# device reconnects
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self.handler = None
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def unpaired(self):
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'''A device paired with the wallet was diconnected. This can be
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called in any thread context.'''
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self.print_error("unpaired")
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def paired(self):
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'''A device paired with the wallet was (re-)connected. This can be
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called in any thread context.'''
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self.print_error("paired")
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def get_action(self):
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pass
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def can_create_accounts(self):
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return True
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def can_export(self):
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return False
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def is_watching_only(self):
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'''The wallet is not watching-only; the user will be prompted for
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pin and passphrase as appropriate when needed.'''
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assert not self.has_seed()
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return False
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def can_change_password(self):
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return False
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def get_client(self, force_pair=True):
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return self.plugin.get_client(self, force_pair)
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def first_address(self):
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'''Used to check a hardware wallet matches a software wallet'''
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account = self.accounts.get('0')
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derivation = self.address_derivation('0', 0, 0)
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return (account.first_address()[0] if account else None, derivation)
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def derive_xkeys(self, root, derivation, password):
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if self.master_public_keys.get(self.root_name):
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return BIP44_wallet.derive_xkeys(self, root, derivation, password)
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# When creating a wallet we need to ask the device for the
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# master public key
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xpub = self.get_public_key(derivation)
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return xpub, None
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def i4b(self, x):
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return pack('>I', x)
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