def sign_psbt(wallet=None, tx=None, success_callback=None):
wallet.fill_psbt(tx)
keystore.sign(tx)
keystore.update_wallet_indexes(wallet, tx)
# remove everything but partial sigs
# to reduce QR code size
tx.unknown = {}
tx.xpubs = {}
for i in range(len(tx.inputs)):
tx.inputs[i].unknown = {}
tx.inputs[i].non_witness_utxo = None
tx.inputs[i].witness_utxo = None
tx.inputs[i].sighash_type = None
tx.inputs[i].bip32_derivations = {}
tx.inputs[i].witness_script = None
tx.inputs[i].redeem_script = None
for i in range(len(tx.outputs)):
tx.outputs[i].unknown = {}
tx.outputs[i].bip32_derivations = {}
tx.outputs[i].witness_script = None
tx.outputs[i].redeem_script = None
b64_tx = b2a_base64(tx.serialize()).decode('utf-8')
if b64_tx[-1:] == "\n":
b64_tx = b64_tx[:-1]
popups.qr_alert("Signed transaction:", b64_tx, "Scan it with your software wallet", width=480)
if success_callback is not None:
success_callback(b64_tx)
def verify_address(s):
# we will go to main afterwards
show_main()
# verifies address in the form [bitcoin:]addr?index=i
s = s.replace("bitcoin:", "")
arr = s.split("?")
index = None
addr = None
# check that ?index= is there
if len(arr) > 1:
addr = arr[0]
meta_arr = arr[1].split("&")
# search for `index=`
for meta in meta_arr:
if meta.startswith("index="):
try:
index = int(meta.split("=")[1])
except:
gui.error("Index is not an integer...")
return
if index is None or addr is None:
# where we will go next
gui.error(
"No derivation index in the address metadata - can't verify.")
return
for w in keystore.wallets:
if w.address(index) == addr:
popups.qr_alert("Address #%d from wallet\n\"%s\"" %
(index + 1, w.name),
"bitcoin:%s" % addr,
message_text=addr)
return
gui.error("Address doesn't belong to any wallet. Wrong device or network?")
def verify_address(s):
# we will go to main afterwards
show_main()
# verifies address in the form [bitcoin:]addr?index=i
s = s.replace("bitcoin:", "")
arr = s.split("?")
index = None
addr = None
# check that ?index= is there
if len(arr) > 1:
addr = arr[0]
meta_arr = arr[1].split("&")
# search for `index=`
for meta in meta_arr:
if meta.startswith("index="):
try:
index = int(meta.split("=")[1])
except:
gui.error("Index is not an integer...")
return
if index is None or addr is None:
# where we will go next
gui.error("No derivation index in the address metadata - can't verify.")
return
for w in keystore.wallets:
if w.address(index) == addr:
warning = ""
if index > w.last_rcv_idx + w.gap_limit:
warning = ("\n\n #ff0000 Possible gap limit. Using this address# "
"#ff0000 may lead to locking of your funds!#")
elif index <= w.last_rcv_idx:
warning = ("\n\n #ff0000 This address may have been used before.#\n"
"#ff0000 Reusing it would diminish your privacy!#")
popups.qr_alert("Address #%d from wallet\n\"%s\"" % (index, w.name),
"bitcoin:%s"%addr, message_text=addr + warning)
return
gui.error("Address doesn't belong to any wallet. Wrong device or network?")
def host_callback(data):
# close all existing popups
popups.close_all_popups()
if data=="fingerprint":
usb_host.respond(hexlify(keystore.fingerprint).decode('ascii'))
return
if data.startswith("xpub "):
path = data[5:].strip(" /\r\n")
try:
if path == "m":
hd = keystore.root.to_public()
else:
hd = keystore.get_xpub(path)
xpub = hd.to_base58(network["xpub"])
usb_host.respond(xpub)
show_xpub("Master key requested from host:", path, hd)
except Exception as e:
print(e)
usb_host.respond("error: bad derivation path '%s'" % path)
return
if data.startswith("sign "):
def success_cb(signed_tx):
usb_host.respond(signed_tx)
def error_cb(error):
usb_host.respond("error: %s" % error)
parse_transaction(data[5:], success_callback=success_cb, error_callback=error_cb)
return
if data.startswith("showaddr "):
arr = data.split(" ")
path = arr[-1].strip()
addrtype = "wpkh"
if len(arr) > 2:
addrtype = arr[-2].strip()
# TODO: detect wallet this address belongs to
try:
key = keystore.get_xpub(path)
if addrtype == "wpkh":
sc = script.p2wpkh(key)
elif addrtype == "pkh":
sc = script.p2pkh(key)
elif addrtype == "sh-wpkh":
sc = script.p2sh(script.p2wpkh(key))
else:
raise RuntimeError()
addr=sc.address(network)
usb_host.respond(addr)
popups.qr_alert("Address with path %s\n(requested by host)" % (path),
"bitcoin:"+addr, message_text=addr)
except Exception as e:
print(e)
usb_host.respond("error: invalid argument")
return
if data.startswith("importwallet "):
parse_new_wallet(data[13:])