def parse_transaction(b64_tx, success_callback=None, error_callback=None):
# we will go to main afterwards
show_main()
try:
raw = a2b_base64(b64_tx)
tx = psbt.PSBT.parse(raw)
except:
gui.error("Failed at transaction parsing")
if error_callback is not None:
error_callback("invalid argument")
return
# blue wallet trick - if the fingerprint is 0 we use our fingerprint
for scope in [tx.inputs, tx.outputs]:
for el in scope:
for der in el.bip32_derivations:
if el.bip32_derivations[
der].fingerprint == b'\x00\x00\x00\x00':
el.bip32_derivations[
der].fingerprint = keystore.fingerprint
try:
data = keystore.check_psbt(tx)
except Exception as e:
gui.error("Problem with the transaction: %r" % e)
if error_callback is not None:
error_callback("invalid argument")
return
title = "Spending %u\nfrom %s" % (data["spending"], data["wallet"].name)
popups.prompt_tx(title,
data,
ok=cb_with_args(sign_psbt,
wallet=data["wallet"],
tx=tx,
success_callback=success_callback),
cancel=cb_with_args(error_callback, "user cancel"))
def parse_transaction(b64_tx, success_callback=None, error_callback=None):
# we will go to main afterwards
show_main()
try:
raw = a2b_base64(b64_tx)
tx = psbt.PSBT.parse(raw)
except:
gui.error("Failed at transaction parsing")
if error_callback is not None:
error_callback("invalid argument")
return
# blue wallet trick - if the fingerprint is 0 we use our fingerprint
for scope in [tx.inputs, tx.outputs]:
for el in scope:
for der in el.bip32_derivations:
if el.bip32_derivations[der].fingerprint == b'\x00\x00\x00\x00':
el.bip32_derivations[der].fingerprint = keystore.fingerprint
try:
data = keystore.check_psbt(tx)
except Exception as e:
gui.error("Problem with the transaction: %r" % e)
if error_callback is not None:
error_callback("invalid argument")
return
# check for address gap limit
gap_limit = False
w = data["wallet"]
wallet_key = b"\xfc\xca\x01" + data["wallet"].fingerprint
for el in tx.inputs + tx.outputs:
if el.bip32_derivations:
# full PSBT
for der in el.bip32_derivations:
drv = el.bip32_derivations[der].derivation
if drv[-1] > w.gap_limit + (w.last_chg_idx if drv[-2] else w.last_rcv_idx):
gap_limit = True
elif wallet_key in el.unknown:
# compressed PSBT
idxs = el.unknown[wallet_key]
chg = int.from_bytes(idxs[0:4], 'little')
idx = int.from_bytes(idxs[4:8], 'little')
if idx > w.gap_limit + (w.last_chg_idx if chg else w.last_rcv_idx):
gap_limit = True
if gap_limit:
data["warning"] = ("#ff0000 Possible gap limit exceeded with some#\n"
"#ff0000 addresses. Your funds may get locked. #\n "
"#ff0000 Proceed at your own risk!#")
title = "Spending %u\nfrom %s" % (data["spending"], data["wallet"].name)
popups.prompt_tx(title, data,
ok=cb_with_args(sign_psbt, wallet=data["wallet"], tx=tx, success_callback=success_callback),
cancel=cb_with_args(error_callback, "user cancel")
)
def parse_new_wallet(s):
show_main()
gui.update(30)
# wallet format:
# name&descriptor
arr = s.split("&")
if len(arr) != 2:
gui.error("Invalid wallet format")
return
w = keystore.check_new_wallet(*arr)
keys_str = []
for key in w.keys:
k = ("%r" % key).replace("]", "]\n")
if keystore.owns_key(key):
keys_str.append("#7ED321 My key: # %s" % k)
else:
keys_str.append("#F5A623 External key: # %s" % k)
keys = "\n\n".join(keys_str)
if w.script_type not in SUPPORTED_SCRIPTS.keys():
raise ValueError("Script type \"%s\" is not supported" % w.script_type)
sc = w.script_type
msg = "Policy: %s\nScript: %s\n%s\n\n%s" % (w.policy, SUPPORTED_SCRIPTS[w.script_type], sc, keys)
scr = popups.prompt("Add wallet \"%s\"?" % arr[0], msg, ok=cb_with_args(new_wallet_confirm, name=arr[0], descriptor=arr[1]))
scr.message.set_recolor(True)
def settings_menu():
gui.create_menu(buttons=[
("Show recovery phrase", show_mnemonic),
("Save key to memory", save_entropy),
("Delete key from memory", delete_entropy),
("Security settings",
cb_with_args(popups.show_settings,
{"usb": USB_ENABLED, "developer": DEV_ENABLED},
save_settings)),
], cb_back=show_main,title="Careful. Think twice.")
def __init__(self, title, message, note=None):
super().__init__()
self.title = add_label(title, scr=self, style="title")
obj = self.title
if note is not None:
self.note = add_label(note, scr=self, style="hint")
self.note.align(self.title, lv.ALIGN.OUT_BOTTOM_MID, 0, 5)
obj = self.note
self.page = lv.page(self)
self.page.set_size(480, 600)
self.message = add_label(message, scr=self.page)
self.page.align(obj, lv.ALIGN.OUT_BOTTOM_MID, 0, 0)
(self.close_button, self.again_button) = add_button_pair(
lv.SYMBOL.LEFT + " Back",
on_release(cb_with_args(self.set_value, False)),
"Roll again",
on_release(cb_with_args(self.set_value, True)),
scr=self,
)
def confirm_new_wallet(s):
show_main()
gui.update(30)
# wallet format:
# name&descriptor
arr = s.split("&")
if len(arr) != 2:
gui.error("Invalid wallet format")
return
try:
keystore.check_new_wallet(*arr)
except Exception as e:
gui.error("%r" % e)
return
popups.prompt("Add wallet \"%s\"?" % arr[0], arr[1], ok=cb_with_args(new_wallet_confirm, name=arr[0], descriptor=arr[1]))
def __init__(self, title, message, note=None):
super().__init__()
self.title = add_label(title, scr=self, style="title")
obj = self.title
if note is not None:
self.note = add_label(note, scr=self, style="hint")
self.note.align(self.title, lv.ALIGN.OUT_BOTTOM_MID, 0, 5)
obj = self.note
self.page = lv.page(self)
self.page.set_size(480, 600)
self.message = add_label(message, scr=self.page)
self.page.align(obj, lv.ALIGN.OUT_BOTTOM_MID, 0, -10)
self.pips_1 = add_button("1",
on_release(
cb_with_args(self.set_value,
DICE_ROLLED_1)),
scr=self)
self.pips_1.set_width(130)
self.pips_1.align(self.page, lv.ALIGN.OUT_LEFT_MID, 20, 20)
self.pips_1.set_x(100)
self.pips_2 = add_button("2",
on_release(
cb_with_args(self.set_value,
DICE_ROLLED_2)),
scr=self)
self.pips_2.set_width(130)
self.pips_2.align(self.page, lv.ALIGN.OUT_RIGHT_MID, 20, 20)
self.pips_2.set_x(HOR_RES - 230)
self.pips_3 = add_button("3",
on_release(
cb_with_args(self.set_value,
DICE_ROLLED_3)),
scr=self)
self.pips_3.set_width(130)
self.pips_3.align(self.page, lv.ALIGN.OUT_LEFT_MID, -20, 110)
self.pips_3.set_x(100)
self.pips_4 = add_button(u"4",
on_release(
cb_with_args(self.set_value,
DICE_ROLLED_4)),
scr=self)
self.pips_4.set_width(130)
self.pips_4.align(self.page, lv.ALIGN.OUT_RIGHT_MID, 20, 110)
self.pips_4.set_x(HOR_RES - 230)
self.pips_5 = add_button("5",
on_release(
cb_with_args(self.set_value,
DICE_ROLLED_5)),
scr=self)
self.pips_5.set_width(130)
self.pips_5.align(self.page, lv.ALIGN.OUT_LEFT_MID, -20, 200)
self.pips_5.set_x(100)
self.pips_6 = add_button("6",
on_release(
cb_with_args(self.set_value,
DICE_ROLLED_6)),
scr=self)
self.pips_6.set_width(130)
self.pips_6.align(self.page, lv.ALIGN.OUT_RIGHT_MID, 20, 200)
self.pips_6.set_x(HOR_RES - 230)
(self.close_button, self.again_button) = add_button_pair(
lv.SYMBOL.LEFT + " Back",
on_release(cb_with_args(self.set_value, BACK)),
"TODO: Use this seed",
on_release(cb_with_args(self.set_value, USE_SEED)),
scr=self,
)