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95 lines
3.3 KiB
95 lines
3.3 KiB
#!/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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