499 lines
17 KiB
Python
499 lines
17 KiB
Python
# (c) Copyright 2018 by Coinkite Inc. This file is covered by license found in COPYING-CC.
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#
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# export.py - Export and share various semi-public data
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#
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import stash, chains, version, ujson, ngu
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from uio import StringIO
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from ucollections import OrderedDict
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from utils import xfp2str, swab32
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from ux import ux_show_story, import_export_prompt
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from glob import settings
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from msgsign import write_sig_file
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from public_constants import AF_CLASSIC, AF_P2WPKH, AF_P2WPKH_P2SH, AF_P2WSH, AF_P2WSH_P2SH, AF_P2SH
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from charcodes import KEY_NFC, KEY_CANCEL, KEY_QR
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from ownership import OWNERSHIP
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async def export_by_qr(body, label, type_code, force_bbqr=False):
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# render as QR and show on-screen
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from ux import show_qr_code
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try:
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# ignore label/title - provides no useful info
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# makes qr smaller and harder to read
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if force_bbqr:
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raise ValueError
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await show_qr_code(body)
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except (ValueError, RuntimeError, TypeError):
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if version.has_qwerty:
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# do BBQr on Q
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from ux_q1 import show_bbqr_codes
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await show_bbqr_codes(type_code, body, label)
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# on Mk4, if too big ... just do nothing (but JSON should have fit?)
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return
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async def export_contents(title, contents, fname_pattern, derive=None, addr_fmt=None, no_qr=None,
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is_json=False, force_bbqr=False, force_prompt=False):
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# export text and json files while offering NFC, QR & Vdisk
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# produces signed export in case of SD/Vdisk (signed with key at deriv and addr_fmt)
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# checks if suitable to offer QR export on Mk4
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# argument contents can support function that generates content
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from glob import dis, NFC
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from files import CardSlot, CardMissingError, needs_microsd
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from qrs import MAX_V11_CHAR_LIMIT
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if callable(contents):
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dis.fullscreen('Generating...')
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contents, derive, addr_fmt = contents()
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if no_qr is not None:
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no_qr = not version.has_qwerty and (len(contents) >= MAX_V11_CHAR_LIMIT)
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sig = not (derive is None and addr_fmt is None)
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while True:
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ch = await import_export_prompt("%s file" % title,
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force_prompt=force_prompt, no_qr=no_qr)
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if ch == KEY_CANCEL:
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break
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elif ch == KEY_QR:
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await export_by_qr(contents, title, "J" if is_json else "U", force_bbqr=force_bbqr)
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continue
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elif ch == KEY_NFC:
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if is_json:
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await NFC.share_json(contents)
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else:
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await NFC.share_text(contents)
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continue
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# choose a filename
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try:
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dis.fullscreen("Saving...")
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with CardSlot(**ch) as card:
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fname, nice = card.pick_filename(fname_pattern)
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# do actual write
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with open(fname, 'wt' if is_json else 'wb') as fd:
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fd.write(contents)
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if sig:
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h = ngu.hash.sha256s(contents.encode())
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sig_nice = write_sig_file([(h, fname)], derive, addr_fmt)
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except CardMissingError:
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await needs_microsd()
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continue
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except Exception as e:
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await ux_show_story('Failed to write!\n\n\n' + str(e))
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continue
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msg = '%s file written:\n\n%s' % (title, nice)
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if sig:
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msg += "\n\n%s signature file written:\n\n%s" % (title, sig_nice)
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await ux_show_story(msg)
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def generate_public_contents():
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# Generate public details about wallet.
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#
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# simple text format:
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# key = value
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# or #comments
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# but value is JSON
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num_rx = 5
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chain = chains.current_chain()
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with stash.SensitiveValues() as sv:
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xfp = xfp2str(swab32(sv.node.my_fp()))
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yield ('''\
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# Coldcard Wallet Summary File
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## For wallet with master key fingerprint: {xfp}
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Wallet operates on blockchain: {nb}
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For BIP-44, this is coin_type '{ct}', and internally we use
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symbol {sym} for this blockchain.
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## IMPORTANT WARNING
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**NEVER** deposit to any address in this file unless you have a working
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wallet system that is ready to handle the funds at that address!
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## Top-level, 'master' extended public key ('m/'):
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{xpub}
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What follows are derived public keys and payment addresses, as may
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be needed for different systems.
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'''.format(nb=chain.name, xpub=chain.serialize_public(sv.node),
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sym=chain.ctype, ct=chain.b44_cointype, xfp=xfp))
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for name, path, addr_fmt in chains.CommonDerivations:
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path = path.replace('{coin_type}', str(chain.b44_cointype))
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yield ('''## For {name}: {path}\n\n'''.format(name=name, path=path))
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yield ('''First %d receive addresses (account=0, change=0):\n\n''' % num_rx)
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submaster = None
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for i in range(num_rx):
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subpath = path.format(account=0, change=0, idx=i)
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# find the prefix of the path that is hardneded
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if "h" in subpath:
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hard_sub = subpath.rsplit("h", 1)[0] + "h"
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else:
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hard_sub = 'm'
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if hard_sub != submaster:
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# dump the xpub needed
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if submaster:
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yield "\n"
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node = sv.derive_path(hard_sub, register=False)
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yield ("%s => %s\n" % (hard_sub, chain.serialize_public(node)))
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if addr_fmt != AF_CLASSIC and (addr_fmt in chain.slip132):
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yield ("%s => %s ##SLIP-132##\n" % (
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hard_sub, chain.serialize_public(node, addr_fmt)))
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submaster = hard_sub
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node.blank()
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del node
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# show the payment address
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node = sv.derive_path(subpath, register=False)
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yield ('%s => %s\n' % (subpath, chain.address(node, addr_fmt)))
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node.blank()
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del node
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yield ('\n\n')
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from multisig import MultisigWallet
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if MultisigWallet.exists():
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yield '\n# Your Multisig Wallets\n\n'
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for ms in MultisigWallet.get_all():
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fp = StringIO()
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ms.render_export(fp)
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print("\n---\n", file=fp)
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yield fp.getvalue()
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del fp
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async def make_summary_file(fname_pattern='public.txt'):
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from glob import dis
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# record **public** values and helpful data into a text file
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dis.fullscreen('Generating...')
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# generator function:
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body = "".join(list(generate_public_contents()))
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ch = chains.current_chain()
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await export_contents('Summary', body, fname_pattern,
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"m/44h/%dh/0h/0/0" % ch.b44_cointype,
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AF_CLASSIC)
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async def make_bitcoin_core_wallet(account_num=0, fname_pattern='bitcoin-core.txt'):
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from glob import dis
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xfp = xfp2str(settings.get('xfp'))
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dis.fullscreen('Generating...')
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# make the data
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examples = []
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imp_multi, imp_desc = generate_bitcoin_core_wallet(account_num, examples)
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imp_multi = ujson.dumps(imp_multi)
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imp_desc = ujson.dumps(imp_desc)
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body = '''\
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# Bitcoin Core Wallet Import File
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https://github.com/Coldcard/firmware/blob/master/docs/bitcoin-core-usage.md
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## For wallet with master key fingerprint: {xfp}
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Wallet operates on blockchain: {nb}
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## Bitcoin Core RPC
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The following command can be entered after opening Window -> Console
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in Bitcoin Core, or using bitcoin-cli:
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importdescriptors '{imp_desc}'
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> **NOTE** If your UTXO was created before generating `importdescriptors` command, you should adjust the value of `timestamp` before executing command in bitcoin core.
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By default it is set to `now` meaning do not rescan the blockchain. If approximate time of UTXO creation is known - adjust `timestamp` from `now` to UNIX epoch time.
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0 can be specified to scan the entire blockchain. Alternatively `rescanblockchain` command can be used after executing importdescriptors command.
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### Bitcoin Core before v0.21.0
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This command can be used on older versions, but it is not as robust
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and "importdescriptors" should be prefered if possible:
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importmulti '{imp_multi}'
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## Resulting Addresses (first 3)
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'''.format(imp_multi=imp_multi, imp_desc=imp_desc, xfp=xfp, nb=chains.current_chain().name)
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body += '\n'.join('%s => %s' % t for t in examples)
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body += '\n'
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OWNERSHIP.note_wallet_used(AF_P2WPKH, account_num)
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ch = chains.current_chain()
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derive = "84h/{coin_type}h/{account}h".format(account=account_num, coin_type=ch.b44_cointype)
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await export_contents('Bitcoin Core', body, fname_pattern, derive + "/0/0", AF_P2WPKH)
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def generate_bitcoin_core_wallet(account_num, example_addrs):
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# Generate the data for an RPC command to import keys into Bitcoin Core
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# - yields dicts for json purposes
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from descriptor import Descriptor
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chain = chains.current_chain()
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derive = "84h/{coin_type}h/{account}h".format(account=account_num,
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coin_type=chain.b44_cointype)
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with stash.SensitiveValues() as sv:
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prefix = sv.derive_path(derive)
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xpub = chain.serialize_public(prefix)
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for i in range(3):
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sp = '0/%d' % i
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node = sv.derive_path(sp, master=prefix)
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a = chain.address(node, AF_P2WPKH)
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example_addrs.append( ('m/%s/%s' % (derive, sp), a) )
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xfp = settings.get('xfp')
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_, vers, _ = version.get_mpy_version()
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OWNERSHIP.note_wallet_used(AF_P2WPKH, account_num)
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desc_obj = Descriptor(keys=[(xfp, derive, xpub)], addr_fmt=AF_P2WPKH)
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# for importmulti
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imm_list = [
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{
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'desc': desc_obj.serialize(internal=internal),
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'range': [0, 1000],
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'timestamp': 'now',
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'internal': internal,
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'keypool': True,
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'watchonly': True
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}
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for internal in [False, True]
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]
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# for importdescriptors
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imd_list = desc_obj.bitcoin_core_serialize()
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return imm_list, imd_list
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def generate_wasabi_wallet():
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# Generate the data for a JSON file which Wasabi can open directly as a new wallet.
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import version
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# bitcoin (xpub) is used, even for testnet case (i.e. no tpub)
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# even though wasabi can properly parse tpub and generate correct addresses
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# it would be confusing for user if he sees tpub in our export and then xpub in wasabi
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# therefore we rather export xpub with correct testnet derivation path
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btc = chains.BitcoinMain
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with stash.SensitiveValues() as sv:
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dd = "84h/%dh/0h" % chains.current_chain().b44_cointype
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xpub = btc.serialize_public(sv.derive_path(dd))
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xfp = settings.get('xfp')
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txt_xfp = xfp2str(xfp)
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# chain = chains.current_chain()
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# https://docs.wasabiwallet.io/using-wasabi/Testnet.html#activating-testnet-in-wasabi
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# https://github.com/zkSNACKs/WalletWasabi/blob/master/WalletWasabi.Documentation/WasabiSetupRegtest.md
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# as we do not shitcoin here - check is useless
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# would yikes on XRT
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# assert chain.ctype in {'BTC', 'XTN', 'XRT'}, "Only Bitcoin supported"
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_,vers,_ = version.get_mpy_version()
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rv = OrderedDict(ColdCardFirmwareVersion=vers, MasterFingerprint=txt_xfp, ExtPubKey=xpub)
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return ujson.dumps(rv), dd + "/0/0", AF_P2WPKH
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def generate_unchained_export(account_num=0):
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# They used to rely on our airgapped export file, so this is same style
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# - for multisig purposes
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# - BIP-45 style paths for now
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# - no account numbers (at this level)
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chain = chains.current_chain()
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xfp = xfp2str(settings.get('xfp', 0))
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rv = OrderedDict(xfp=xfp, account=account_num)
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sign_der = None
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with stash.SensitiveValues() as sv:
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for name, deriv, fmt in chains.MS_STD_DERIVATIONS:
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if fmt == AF_P2SH and account_num:
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continue
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dd = deriv.format(coin=chain.b44_cointype, acct_num=account_num)
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if fmt == AF_P2WSH:
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sign_der = dd + "/0/0"
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node = sv.derive_path(dd)
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xp = chain.serialize_public(node, fmt)
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OWNERSHIP.note_wallet_used(fmt, account_num)
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rv['%s_deriv' % name] = dd
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rv[name] = xp
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return ujson.dumps(rv), sign_der, AF_CLASSIC
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def generate_generic_export(account_num=0):
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# Generate data that other programers will use to import Coldcard (single-signer)
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from descriptor import Descriptor, multisig_descriptor_template
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chain = chains.current_chain()
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master_xfp = settings.get("xfp")
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master_xfp_str = xfp2str(master_xfp)
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rv = OrderedDict(chain=chain.ctype,
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xfp=master_xfp_str,
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account=account_num,
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xpub=settings.get('xpub'))
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with stash.SensitiveValues() as sv:
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# each of these paths would have /{change}/{idx} in usage (not hardened)
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for name, deriv, fmt, atype, is_ms in [
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( 'bip44', "m/44h/{ct}h/{acc}h", AF_CLASSIC, 'p2pkh', False ),
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( 'bip49', "m/49h/{ct}h/{acc}h", AF_P2WPKH_P2SH, 'p2sh-p2wpkh', False ), # was "p2wpkh-p2sh"
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( 'bip84', "m/84h/{ct}h/{acc}h", AF_P2WPKH, 'p2wpkh', False ),
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( 'bip48_1', "m/48h/{ct}h/{acc}h/1h", AF_P2WSH_P2SH, 'p2sh-p2wsh', True ),
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( 'bip48_2', "m/48h/{ct}h/{acc}h/2h", AF_P2WSH, 'p2wsh', True ),
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( 'bip45', "m/45h", AF_P2SH, 'p2sh', True ),
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]:
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if fmt == AF_P2SH and account_num:
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continue
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dd = deriv.format(ct=chain.b44_cointype, acc=account_num)
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node = sv.derive_path(dd)
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xfp = xfp2str(swab32(node.my_fp()))
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xp = chain.serialize_public(node, AF_CLASSIC)
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zp = chain.serialize_public(node, fmt) if fmt != AF_CLASSIC else None
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if is_ms:
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desc = multisig_descriptor_template(xp, dd, master_xfp_str, fmt)
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else:
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desc = Descriptor(keys=[(master_xfp, dd, xp)], addr_fmt=fmt).serialize(int_ext=True)
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OWNERSHIP.note_wallet_used(fmt, account_num)
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rv[name] = OrderedDict(name=atype,
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xfp=xfp,
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deriv=dd,
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xpub=xp,
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desc=desc)
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if zp and zp != xp:
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rv[name]['_pub'] = zp
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if not is_ms:
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# bonus/check: first non-change address: 0/0
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node.derive(0, False).derive(0, False)
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rv[name]['first'] = chain.address(node, fmt)
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sig_deriv = "m/44h/{ct}h/{acc}h".format(ct=chain.b44_cointype, acc=account_num) + "/0/0"
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return ujson.dumps(rv), sig_deriv, AF_CLASSIC
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def generate_electrum_wallet(addr_type, account_num):
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# Generate line-by-line JSON details about wallet.
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#
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# Much reverse enginerring of Electrum here. It's a complex
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# legacy file format.
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chain = chains.current_chain()
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xfp = settings.get('xfp')
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# Must get the derivation path, and the SLIP32 version bytes right!
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mode = chains.af_to_bip44_purpose(addr_type)
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OWNERSHIP.note_wallet_used(addr_type, account_num)
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derive = "m/{mode}h/{coin_type}h/{account}h".format(mode=mode,
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account=account_num, coin_type=chain.b44_cointype)
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with stash.SensitiveValues() as sv:
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top = chain.serialize_public(sv.derive_path(derive), addr_type)
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# most values are nicely defaulted, and for max forward compat, don't want to set
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# anything more than I need to
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rv = OrderedDict(seed_version=17, use_encryption=False, wallet_type='standard')
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lab = 'Coldcard Import %s' % xfp2str(xfp)
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if account_num:
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lab += ' Acct#%d' % account_num
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# the important stuff.
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rv['keystore'] = OrderedDict(type='hardware',
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hw_type='coldcard',
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label=lab,
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ckcc_xfp=xfp,
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ckcc_xpub=settings.get('xpub'),
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derivation=derive,
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xpub=top)
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return ujson.dumps(rv), derive + "/0/0", addr_type
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async def make_descriptor_wallet_export(addr_type, account_num=0, mode=None, int_ext=True,
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fname_pattern="descriptor.txt"):
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from descriptor import Descriptor
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from glob import dis
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dis.fullscreen('Generating...')
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chain = chains.current_chain()
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xfp = settings.get('xfp')
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dis.progress_bar_show(0.1)
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if mode is None:
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mode = chains.af_to_bip44_purpose(addr_type)
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OWNERSHIP.note_wallet_used(addr_type, account_num)
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derive = "m/{mode}h/{coin_type}h/{account}h".format(mode=mode,
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account=account_num, coin_type=chain.b44_cointype)
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dis.progress_bar_show(0.2)
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with stash.SensitiveValues() as sv:
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dis.progress_bar_show(0.3)
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xpub = chain.serialize_public(sv.derive_path(derive))
|
|
|
|
dis.progress_bar_show(0.7)
|
|
desc = Descriptor(keys=[(xfp, derive, xpub)], addr_fmt=addr_type)
|
|
dis.progress_bar_show(0.8)
|
|
if int_ext:
|
|
# with <0;1> notation
|
|
body = desc.serialize(int_ext=True)
|
|
else:
|
|
# external descriptor
|
|
# internal descriptor
|
|
body = "%s\n%s" % (
|
|
desc.serialize(internal=False),
|
|
desc.serialize(internal=True),
|
|
)
|
|
|
|
dis.progress_bar_show(1)
|
|
await export_contents("Descriptor", body, fname_pattern, derive + "/0/0",
|
|
addr_type, force_prompt=True)
|
|
|
|
# EOF
|
|
|