731 lines
29 KiB
Python
731 lines
29 KiB
Python
import asyncio
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import time
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import urllib
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import re
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from decimal import Decimal, InvalidOperation
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from enum import IntEnum
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from typing import NamedTuple, Optional, Callable, List, TYPE_CHECKING
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from . import bitcoin
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from .contacts import AliasNotFoundException
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from .i18n import _
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from .logging import Logger
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from .util import parse_max_spend, format_satoshis_plain
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from .util import get_asyncio_loop, log_exceptions
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from .transaction import PartialTxOutput
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from .lnurl import decode_lnurl, request_lnurl, callback_lnurl, LNURLError, lightning_address_to_url
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from .bitcoin import COIN, TOTAL_COIN_SUPPLY_LIMIT_IN_BTC, opcodes, construct_script
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from .lnaddr import lndecode, LnDecodeException, LnInvoiceException
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from .lnutil import IncompatibleOrInsaneFeatures
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if TYPE_CHECKING:
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from .wallet import Abstract_Wallet
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from .transaction import Transaction
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def maybe_extract_lightning_payment_identifier(data: str) -> Optional[str]:
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data = data.strip() # whitespaces
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data = data.lower()
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if data.startswith(LIGHTNING_URI_SCHEME + ':ln'):
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cut_prefix = LIGHTNING_URI_SCHEME + ':'
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data = data[len(cut_prefix):]
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if data.startswith('ln'):
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return data
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return None
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# note: when checking against these, use .lower() to support case-insensitivity
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BITCOIN_BIP21_URI_SCHEME = 'bitcoin'
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LIGHTNING_URI_SCHEME = 'lightning'
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class InvalidBitcoinURI(Exception):
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pass
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def parse_bip21_URI(uri: str) -> dict:
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"""Raises InvalidBitcoinURI on malformed URI."""
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if not isinstance(uri, str):
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raise InvalidBitcoinURI(f"expected string, not {repr(uri)}")
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if ':' not in uri:
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if not bitcoin.is_address(uri):
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raise InvalidBitcoinURI("Not a bitcoin address")
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return {'address': uri}
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u = urllib.parse.urlparse(uri)
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if u.scheme.lower() != BITCOIN_BIP21_URI_SCHEME:
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raise InvalidBitcoinURI("Not a bitcoin URI")
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address = u.path
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# python for android fails to parse query
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if address.find('?') > 0:
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address, query = u.path.split('?')
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pq = urllib.parse.parse_qs(query)
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else:
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pq = urllib.parse.parse_qs(u.query)
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for k, v in pq.items():
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if len(v) != 1:
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raise InvalidBitcoinURI(f'Duplicate Key: {repr(k)}')
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out = {k: v[0] for k, v in pq.items()}
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if address:
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if not bitcoin.is_address(address):
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raise InvalidBitcoinURI(f"Invalid bitcoin address: {address}")
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out['address'] = address
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if 'amount' in out:
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am = out['amount']
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try:
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m = re.match(r'([0-9.]+)X([0-9])', am)
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if m:
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k = int(m.group(2)) - 8
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amount = Decimal(m.group(1)) * pow(Decimal(10), k)
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else:
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amount = Decimal(am) * COIN
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if amount > TOTAL_COIN_SUPPLY_LIMIT_IN_BTC * COIN:
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raise InvalidBitcoinURI(f"amount is out-of-bounds: {amount!r} BTC")
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out['amount'] = int(amount)
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except Exception as e:
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raise InvalidBitcoinURI(f"failed to parse 'amount' field: {repr(e)}") from e
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if 'message' in out:
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out['message'] = out['message']
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out['memo'] = out['message']
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if 'time' in out:
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try:
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out['time'] = int(out['time'])
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except Exception as e:
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raise InvalidBitcoinURI(f"failed to parse 'time' field: {repr(e)}") from e
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if 'exp' in out:
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try:
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out['exp'] = int(out['exp'])
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except Exception as e:
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raise InvalidBitcoinURI(f"failed to parse 'exp' field: {repr(e)}") from e
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if 'sig' in out:
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try:
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out['sig'] = bitcoin.base_decode(out['sig'], base=58).hex()
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except Exception as e:
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raise InvalidBitcoinURI(f"failed to parse 'sig' field: {repr(e)}") from e
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if 'lightning' in out:
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try:
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lnaddr = lndecode(out['lightning'])
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except LnDecodeException as e:
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raise InvalidBitcoinURI(f"Failed to decode 'lightning' field: {e!r}") from e
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amount_sat = out.get('amount')
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if amount_sat:
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# allow small leeway due to msat precision
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if abs(amount_sat - int(lnaddr.get_amount_sat())) > 1:
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raise InvalidBitcoinURI("Inconsistent lightning field in bip21: amount")
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address = out.get('address')
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ln_fallback_addr = lnaddr.get_fallback_address()
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if address and ln_fallback_addr:
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if ln_fallback_addr != address:
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raise InvalidBitcoinURI("Inconsistent lightning field in bip21: address")
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return out
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def create_bip21_uri(addr, amount_sat: Optional[int], message: Optional[str],
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*, extra_query_params: Optional[dict] = None) -> str:
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if not bitcoin.is_address(addr):
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return ""
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if extra_query_params is None:
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extra_query_params = {}
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query = []
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if amount_sat:
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query.append('amount=%s' % format_satoshis_plain(amount_sat))
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if message:
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query.append('message=%s' % urllib.parse.quote(message))
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for k, v in extra_query_params.items():
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if not isinstance(k, str) or k != urllib.parse.quote(k):
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raise Exception(f"illegal key for URI: {repr(k)}")
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v = urllib.parse.quote(v)
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query.append(f"{k}={v}")
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p = urllib.parse.ParseResult(
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scheme=BITCOIN_BIP21_URI_SCHEME,
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netloc='',
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path=addr,
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params='',
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query='&'.join(query),
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fragment=''
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)
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return str(urllib.parse.urlunparse(p))
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def is_uri(data: str) -> bool:
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data = data.lower()
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if (data.startswith(LIGHTNING_URI_SCHEME + ":") or
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data.startswith(BITCOIN_BIP21_URI_SCHEME + ':')):
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return True
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return False
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RE_ALIAS = r'(.*?)\s*\<([0-9A-Za-z]{1,})\>'
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RE_EMAIL = r'\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,7}\b'
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class PaymentIdentifierState(IntEnum):
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EMPTY = 0 # Initial state.
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INVALID = 1 # Unrecognized PI
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AVAILABLE = 2 # PI contains a payable destination
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# payable means there's enough addressing information to submit to one
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# of the channels Electrum supports (on-chain, lightning)
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NEED_RESOLVE = 3 # PI contains a recognized destination format, but needs an online resolve step
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LNURLP_FINALIZE = 4 # PI contains a resolved LNURLp, but needs amount and comment to resolve to a bolt11
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MERCHANT_NOTIFY = 5 # PI contains a valid payment request and on-chain destination. It should notify
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# the merchant payment processor of the tx after on-chain broadcast,
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# and supply a refund address (bip70)
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MERCHANT_ACK = 6 # PI notified merchant. nothing to be done.
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ERROR = 50 # generic error
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NOT_FOUND = 51 # PI contains a recognized destination format, but resolve step was unsuccesful
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MERCHANT_ERROR = 52 # PI failed notifying the merchant after broadcasting onchain TX
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INVALID_AMOUNT = 53 # Specified amount not accepted
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class PaymentIdentifierType(IntEnum):
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UNKNOWN = 0
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SPK = 1
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BIP21 = 2
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BIP70 = 3
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MULTILINE = 4
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BOLT11 = 5
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LNURLP = 6
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EMAILLIKE = 7
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OPENALIAS = 8
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LNADDR = 9
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class PaymentIdentifier(Logger):
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"""
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Takes:
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* bitcoin addresses or script
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* paytomany csv
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* openalias
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* bip21 URI
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* lightning-URI (containing bolt11 or lnurl)
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* bolt11 invoice
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* lnurl
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* lightning address
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"""
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def __init__(self, wallet: 'Abstract_Wallet', text):
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Logger.__init__(self)
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self._state = PaymentIdentifierState.EMPTY
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self.wallet = wallet
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self.contacts = wallet.contacts if wallet is not None else None
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self.config = wallet.config if wallet is not None else None
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self.text = text.strip()
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self._type = PaymentIdentifierType.UNKNOWN
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self.error = None # if set, GUI should show error and stop
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self.warning = None # if set, GUI should ask user if they want to proceed
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# more than one of those may be set
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self.multiline_outputs = None
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self._is_max = False
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self.bolt11 = None
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self.bip21 = None
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self.spk = None
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#
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self.emaillike = None
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self.openalias_data = None
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#
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self.bip70 = None
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self.bip70_data = None
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self.merchant_ack_status = None
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self.merchant_ack_message = None
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#
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self.lnurl = None
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self.lnurl_data = None
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self.parse(text)
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@property
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def type(self):
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return self._type
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def set_state(self, state: 'PaymentIdentifierState'):
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self.logger.debug(f'PI state {self._state} -> {state}')
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self._state = state
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def is_state(self, state: 'PaymentIdentifierState'):
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return self._state == state
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def need_resolve(self):
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return self._state == PaymentIdentifierState.NEED_RESOLVE
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def need_finalize(self):
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return self._state == PaymentIdentifierState.LNURLP_FINALIZE
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def need_merchant_notify(self):
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return self._state == PaymentIdentifierState.MERCHANT_NOTIFY
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def is_valid(self):
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return self._state not in [PaymentIdentifierState.INVALID, PaymentIdentifierState.EMPTY]
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def is_available(self):
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return self._state in [PaymentIdentifierState.AVAILABLE]
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def is_lightning(self):
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return self.lnurl or self.bolt11
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def is_multiline(self):
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return bool(self.multiline_outputs)
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def is_multiline_max(self):
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return self.is_multiline() and self._is_max
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def is_amount_locked(self):
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if self._type == PaymentIdentifierType.SPK:
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return False
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elif self._type == PaymentIdentifierType.BIP21:
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return bool(self.bip21.get('amount'))
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elif self._type == PaymentIdentifierType.BIP70:
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return True # TODO always given?
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elif self._type == PaymentIdentifierType.BOLT11:
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lnaddr = lndecode(self.bolt11)
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return bool(lnaddr.amount)
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elif self._type in [PaymentIdentifierType.LNURLP, PaymentIdentifierType.LNADDR]:
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# amount limits known after resolve, might be specific amount or locked to range
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if self.need_resolve():
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return True
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if self.need_finalize():
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self.logger.debug(f'lnurl f {self.lnurl_data.min_sendable_sat}-{self.lnurl_data.max_sendable_sat}')
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return not (self.lnurl_data.min_sendable_sat < self.lnurl_data.max_sendable_sat)
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return True
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elif self._type == PaymentIdentifierType.MULTILINE:
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return True
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elif self._type == PaymentIdentifierType.EMAILLIKE:
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return False
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elif self._type == PaymentIdentifierType.OPENALIAS:
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return False
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def is_error(self) -> bool:
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return self._state >= PaymentIdentifierState.ERROR
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def get_error(self) -> str:
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return self.error
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def parse(self, text):
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# parse text, set self._type and self.error
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text = text.strip()
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if not text:
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return
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if outputs := self._parse_as_multiline(text):
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self._type = PaymentIdentifierType.MULTILINE
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self.multiline_outputs = outputs
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if self.error:
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self.set_state(PaymentIdentifierState.INVALID)
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else:
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self.set_state(PaymentIdentifierState.AVAILABLE)
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elif invoice_or_lnurl := maybe_extract_lightning_payment_identifier(text):
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if invoice_or_lnurl.startswith('lnurl'):
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self._type = PaymentIdentifierType.LNURLP
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try:
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self.lnurl = decode_lnurl(invoice_or_lnurl)
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self.set_state(PaymentIdentifierState.NEED_RESOLVE)
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except Exception as e:
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self.error = _("Error parsing LNURL") + f":\n{e}"
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self.set_state(PaymentIdentifierState.INVALID)
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return
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else:
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self._type = PaymentIdentifierType.BOLT11
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try:
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lndecode(invoice_or_lnurl)
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except LnInvoiceException as e:
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self.error = _("Error parsing Lightning invoice") + f":\n{e}"
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self.set_state(PaymentIdentifierState.INVALID)
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return
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except IncompatibleOrInsaneFeatures as e:
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self.error = _("Invoice requires unknown or incompatible Lightning feature") + f":\n{e!r}"
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self.set_state(PaymentIdentifierState.INVALID)
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return
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self.bolt11 = invoice_or_lnurl
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self.set_state(PaymentIdentifierState.AVAILABLE)
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elif text.lower().startswith(BITCOIN_BIP21_URI_SCHEME + ':'):
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try:
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out = parse_bip21_URI(text)
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except InvalidBitcoinURI as e:
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self.error = _("Error parsing URI") + f":\n{e}"
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self.set_state(PaymentIdentifierState.INVALID)
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return
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self.bip21 = out
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self.bip70 = out.get('r')
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if self.bip70:
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self._type = PaymentIdentifierType.BIP70
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self.set_state(PaymentIdentifierState.NEED_RESOLVE)
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else:
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self._type = PaymentIdentifierType.BIP21
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# check optional lightning in bip21, set self.bolt11 if valid
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bolt11 = out.get('lightning')
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if bolt11:
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try:
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lndecode(bolt11)
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# if we get here, we have a usable bolt11
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self.bolt11 = bolt11
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except LnInvoiceException as e:
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self.logger.debug(_("Error parsing Lightning invoice") + f":\n{e}")
|
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except IncompatibleOrInsaneFeatures as e:
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self.logger.debug(_("Invoice requires unknown or incompatible Lightning feature") + f":\n{e!r}")
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self.set_state(PaymentIdentifierState.AVAILABLE)
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elif scriptpubkey := self.parse_output(text):
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self._type = PaymentIdentifierType.SPK
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self.spk = scriptpubkey
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self.set_state(PaymentIdentifierState.AVAILABLE)
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elif re.match(RE_EMAIL, text):
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self._type = PaymentIdentifierType.EMAILLIKE
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self.emaillike = text
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self.set_state(PaymentIdentifierState.NEED_RESOLVE)
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elif self.error is None:
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truncated_text = f"{text[:100]}..." if len(text) > 100 else text
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self.error = f"Unknown payment identifier:\n{truncated_text}"
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self.set_state(PaymentIdentifierState.INVALID)
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|
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def resolve(self, *, on_finished: 'Callable'):
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assert self._state == PaymentIdentifierState.NEED_RESOLVE
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coro = self._do_resolve(on_finished=on_finished)
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asyncio.run_coroutine_threadsafe(coro, get_asyncio_loop())
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|
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@log_exceptions
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async def _do_resolve(self, *, on_finished=None):
|
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try:
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if self.emaillike:
|
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# TODO: parallel lookup?
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data = await self.resolve_openalias()
|
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if data:
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self.openalias_data = data
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self.logger.debug(f'OA: {data!r}')
|
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name = data.get('name')
|
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address = data.get('address')
|
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self.contacts[self.emaillike] = ('openalias', name)
|
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if not data.get('validated'):
|
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self.warning = _(
|
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'WARNING: the alias "{}" could not be validated via an additional '
|
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'security check, DNSSEC, and thus may not be correct.').format(self.emaillike)
|
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try:
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scriptpubkey = self.parse_output(address)
|
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self._type = PaymentIdentifierType.OPENALIAS
|
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self.spk = scriptpubkey
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self.set_state(PaymentIdentifierState.AVAILABLE)
|
|
except Exception as e:
|
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self.error = str(e)
|
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self.set_state(PaymentIdentifierState.NOT_FOUND)
|
|
else:
|
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lnurl = lightning_address_to_url(self.emaillike)
|
|
try:
|
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data = await request_lnurl(lnurl)
|
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self._type = PaymentIdentifierType.LNADDR
|
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self.lnurl = lnurl
|
|
self.lnurl_data = data
|
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self.set_state(PaymentIdentifierState.LNURLP_FINALIZE)
|
|
except LNURLError as e:
|
|
self.set_state(PaymentIdentifierState.NOT_FOUND)
|
|
except Exception as e:
|
|
# NOTE: any other exception is swallowed here (e.g. DNS error)
|
|
# as the user may be typing and we have an incomplete emaillike
|
|
self.set_state(PaymentIdentifierState.NOT_FOUND)
|
|
elif self.bip70:
|
|
from . import paymentrequest
|
|
data = await paymentrequest.get_payment_request(self.bip70)
|
|
self.bip70_data = data
|
|
self.set_state(PaymentIdentifierState.MERCHANT_NOTIFY)
|
|
elif self.lnurl:
|
|
data = await request_lnurl(self.lnurl)
|
|
self.lnurl_data = data
|
|
self.set_state(PaymentIdentifierState.LNURLP_FINALIZE)
|
|
self.logger.debug(f'LNURL data: {data!r}')
|
|
else:
|
|
self.set_state(PaymentIdentifierState.ERROR)
|
|
return
|
|
except Exception as e:
|
|
self.error = str(e)
|
|
self.logger.error(repr(e))
|
|
self.set_state(PaymentIdentifierState.ERROR)
|
|
finally:
|
|
if on_finished:
|
|
on_finished(self)
|
|
|
|
def finalize(self, *, amount_sat: int = 0, comment: str = None, on_finished: Callable = None):
|
|
assert self._state == PaymentIdentifierState.LNURLP_FINALIZE
|
|
coro = self._do_finalize(amount_sat, comment, on_finished=on_finished)
|
|
asyncio.run_coroutine_threadsafe(coro, get_asyncio_loop())
|
|
|
|
@log_exceptions
|
|
async def _do_finalize(self, amount_sat: int = None, comment: str = None, on_finished: Callable = None):
|
|
from .invoices import Invoice
|
|
try:
|
|
if not self.lnurl_data:
|
|
raise Exception("Unexpected missing LNURL data")
|
|
|
|
if not (self.lnurl_data.min_sendable_sat <= amount_sat <= self.lnurl_data.max_sendable_sat):
|
|
self.error = _('Amount must be between %d and %d sat.') \
|
|
% (self.lnurl_data.min_sendable_sat, self.lnurl_data.max_sendable_sat)
|
|
self.set_state(PaymentIdentifierState.INVALID_AMOUNT)
|
|
return
|
|
|
|
if self.lnurl_data.comment_allowed == 0:
|
|
comment = None
|
|
params = {'amount': amount_sat * 1000}
|
|
if comment:
|
|
params['comment'] = comment
|
|
|
|
try:
|
|
invoice_data = await callback_lnurl(self.lnurl_data.callback_url, params=params)
|
|
except LNURLError as e:
|
|
self.error = f"LNURL request encountered error: {e}"
|
|
self.set_state(PaymentIdentifierState.ERROR)
|
|
return
|
|
|
|
bolt11_invoice = invoice_data.get('pr')
|
|
invoice = Invoice.from_bech32(bolt11_invoice)
|
|
if invoice.get_amount_sat() != amount_sat:
|
|
raise Exception("lnurl returned invoice with wrong amount")
|
|
# this will change what is returned by get_fields_for_GUI
|
|
self.bolt11 = bolt11_invoice
|
|
self.set_state(PaymentIdentifierState.AVAILABLE)
|
|
except Exception as e:
|
|
self.error = str(e)
|
|
self.logger.error(repr(e))
|
|
self.set_state(PaymentIdentifierState.ERROR)
|
|
finally:
|
|
if on_finished:
|
|
on_finished(self)
|
|
|
|
def notify_merchant(self, *, tx: 'Transaction' = None, refund_address: str = None, on_finished: 'Callable' = None):
|
|
assert self._state == PaymentIdentifierState.MERCHANT_NOTIFY
|
|
assert tx
|
|
coro = self._do_notify_merchant(tx, refund_address, on_finished=on_finished)
|
|
asyncio.run_coroutine_threadsafe(coro, get_asyncio_loop())
|
|
|
|
@log_exceptions
|
|
async def _do_notify_merchant(self, tx, refund_address, *, on_finished: 'Callable'):
|
|
try:
|
|
if not self.bip70_data:
|
|
self.set_state(PaymentIdentifierState.ERROR)
|
|
return
|
|
|
|
ack_status, ack_msg = await self.bip70_data.send_payment_and_receive_paymentack(tx.serialize(), refund_address)
|
|
self.logger.info(f"Payment ACK: {ack_status}. Ack message: {ack_msg}")
|
|
self.merchant_ack_status = ack_status
|
|
self.merchant_ack_message = ack_msg
|
|
self.set_state(PaymentIdentifierState.MERCHANT_ACK)
|
|
except Exception as e:
|
|
self.error = str(e)
|
|
self.logger.error(repr(e))
|
|
self.set_state(PaymentIdentifierState.MERCHANT_ERROR)
|
|
finally:
|
|
if on_finished:
|
|
on_finished(self)
|
|
|
|
def get_onchain_outputs(self, amount):
|
|
if self.bip70:
|
|
return self.bip70_data.get_outputs()
|
|
elif self.multiline_outputs:
|
|
return self.multiline_outputs
|
|
elif self.spk:
|
|
return [PartialTxOutput(scriptpubkey=self.spk, value=amount)]
|
|
elif self.bip21:
|
|
address = self.bip21.get('address')
|
|
scriptpubkey = self.parse_output(address)
|
|
return [PartialTxOutput(scriptpubkey=scriptpubkey, value=amount)]
|
|
else:
|
|
raise Exception('not onchain')
|
|
|
|
def _parse_as_multiline(self, text):
|
|
# filter out empty lines
|
|
lines = text.split('\n')
|
|
lines = [i for i in lines if i]
|
|
is_multiline = len(lines) > 1
|
|
outputs = [] # type: List[PartialTxOutput]
|
|
errors = ''
|
|
total = 0
|
|
self._is_max = False
|
|
for i, line in enumerate(lines):
|
|
try:
|
|
output = self.parse_address_and_amount(line)
|
|
outputs.append(output)
|
|
if parse_max_spend(output.value):
|
|
self._is_max = True
|
|
else:
|
|
total += output.value
|
|
except Exception as e:
|
|
errors = f'{errors}line #{i}: {str(e)}\n'
|
|
continue
|
|
if is_multiline and errors:
|
|
self.error = errors.strip() if errors else None
|
|
self.logger.debug(f'multiline: {outputs!r}, {self.error}')
|
|
return outputs
|
|
|
|
def parse_address_and_amount(self, line) -> 'PartialTxOutput':
|
|
try:
|
|
x, y = line.split(',')
|
|
except ValueError:
|
|
raise Exception("expected two comma-separated values: (address, amount)") from None
|
|
scriptpubkey = self.parse_output(x)
|
|
if not scriptpubkey:
|
|
raise Exception('Invalid address')
|
|
amount = self.parse_amount(y)
|
|
return PartialTxOutput(scriptpubkey=scriptpubkey, value=amount)
|
|
|
|
def parse_output(self, x) -> bytes:
|
|
try:
|
|
address = self.parse_address(x)
|
|
return bytes.fromhex(bitcoin.address_to_script(address))
|
|
except Exception as e:
|
|
pass
|
|
try:
|
|
script = self.parse_script(x)
|
|
return bytes.fromhex(script)
|
|
except Exception as e:
|
|
pass
|
|
|
|
# raise Exception("Invalid address or script.")
|
|
|
|
def parse_script(self, x):
|
|
script = ''
|
|
for word in x.split():
|
|
if word[0:3] == 'OP_':
|
|
opcode_int = opcodes[word]
|
|
script += construct_script([opcode_int])
|
|
else:
|
|
bytes.fromhex(word) # to test it is hex data
|
|
script += construct_script([word])
|
|
return script
|
|
|
|
def parse_amount(self, x):
|
|
x = x.strip()
|
|
if not x:
|
|
raise Exception("Amount is empty")
|
|
if parse_max_spend(x):
|
|
return x
|
|
p = pow(10, self.config.get_decimal_point())
|
|
try:
|
|
return int(p * Decimal(x))
|
|
except InvalidOperation:
|
|
raise Exception("Invalid amount")
|
|
|
|
def parse_address(self, line):
|
|
r = line.strip()
|
|
m = re.match('^' + RE_ALIAS + '$', r)
|
|
address = str(m.group(2) if m else r)
|
|
assert bitcoin.is_address(address)
|
|
return address
|
|
|
|
def get_fields_for_GUI(self):
|
|
recipient = None
|
|
amount = None
|
|
description = None
|
|
validated = None
|
|
comment = None
|
|
|
|
if self.emaillike and self.openalias_data:
|
|
address = self.openalias_data.get('address')
|
|
name = self.openalias_data.get('name')
|
|
recipient = self.emaillike + ' <' + address + '>'
|
|
validated = self.openalias_data.get('validated')
|
|
if not validated:
|
|
self.warning = _('WARNING: the alias "{}" could not be validated via an additional '
|
|
'security check, DNSSEC, and thus may not be correct.').format(self.emaillike)
|
|
|
|
elif self.bolt11 and self.wallet.has_lightning():
|
|
recipient, amount, description = self._get_bolt11_fields(self.bolt11)
|
|
|
|
elif self.lnurl and self.lnurl_data:
|
|
domain = urllib.parse.urlparse(self.lnurl).netloc
|
|
recipient = f"{self.lnurl_data.metadata_plaintext} <{domain}>"
|
|
amount = self.lnurl_data.min_sendable_sat if self.lnurl_data.min_sendable_sat else None
|
|
description = self.lnurl_data.metadata_plaintext
|
|
if self.lnurl_data.comment_allowed:
|
|
comment = self.lnurl_data.comment_allowed
|
|
|
|
elif self.bip70 and self.bip70_data:
|
|
pr = self.bip70_data
|
|
if pr.error:
|
|
self.error = pr.error
|
|
return
|
|
recipient = pr.get_requestor()
|
|
amount = pr.get_amount()
|
|
description = pr.get_memo()
|
|
validated = not pr.has_expired()
|
|
# note: allow saving bip70 reqs, as we save them anyway when paying them
|
|
#for btn in [self.send_button, self.clear_button, self.save_button]:
|
|
# btn.setEnabled(True)
|
|
# signal to set fee
|
|
#self.amount_e.textEdited.emit("")
|
|
|
|
elif self.spk:
|
|
pass
|
|
|
|
elif self.multiline_outputs:
|
|
pass
|
|
|
|
elif self.bip21:
|
|
recipient = self.bip21.get('address')
|
|
amount = self.bip21.get('amount')
|
|
label = self.bip21.get('label')
|
|
description = self.bip21.get('message')
|
|
# use label as description (not BIP21 compliant)
|
|
if label and not description:
|
|
description = label
|
|
|
|
return recipient, amount, description, comment, validated
|
|
|
|
def _get_bolt11_fields(self, bolt11_invoice):
|
|
"""Parse ln invoice, and prepare the send tab for it."""
|
|
lnaddr = lndecode(bolt11_invoice) #
|
|
pubkey = lnaddr.pubkey.serialize().hex()
|
|
for k, v in lnaddr.tags:
|
|
if k == 'd':
|
|
description = v
|
|
break
|
|
else:
|
|
description = ''
|
|
amount = lnaddr.get_amount_sat()
|
|
return pubkey, amount, description
|
|
|
|
async def resolve_openalias(self) -> Optional[dict]:
|
|
key = self.emaillike
|
|
# TODO: below check needed? we already matched RE_EMAIL
|
|
# if not (('.' in key) and ('<' not in key) and (' ' not in key)):
|
|
# return None
|
|
parts = key.split(sep=',') # assuming single line
|
|
if parts and len(parts) > 0 and bitcoin.is_address(parts[0]):
|
|
return None
|
|
try:
|
|
data = self.contacts.resolve(key) # TODO: don't use contacts as delegate to resolve openalias, separate.
|
|
return data
|
|
except AliasNotFoundException as e:
|
|
self.logger.info(f'OpenAlias not found: {repr(e)}')
|
|
return None
|
|
except Exception as e:
|
|
self.logger.info(f'error resolving address/alias: {repr(e)}')
|
|
return None
|
|
|
|
def has_expired(self):
|
|
if self.bip70:
|
|
return self.bip70_data.has_expired()
|
|
elif self.bolt11:
|
|
lnaddr = lndecode(self.bolt11)
|
|
return lnaddr.is_expired()
|
|
elif self.bip21:
|
|
expires = self.bip21.get('exp') + self.bip21.get('time') if self.bip21.get('exp') else 0
|
|
return bool(expires) and expires < time.time()
|
|
return False
|
|
|
|
def get_invoice(self, amount_sat, message):
|
|
from .invoices import Invoice
|
|
if self.is_lightning():
|
|
invoice_str = self.bolt11
|
|
if not invoice_str:
|
|
return
|
|
invoice = Invoice.from_bech32(invoice_str)
|
|
if invoice.amount_msat is None:
|
|
invoice.amount_msat = int(amount_sat * 1000)
|
|
return invoice
|
|
else:
|
|
outputs = self.get_onchain_outputs(amount_sat)
|
|
message = self.bip21.get('message') if self.bip21 else message
|
|
bip70_data = self.bip70_data if self.bip70 else None
|
|
return self.wallet.create_invoice(
|
|
outputs=outputs,
|
|
message=message,
|
|
pr=bip70_data,
|
|
URI=self.bip21)
|