import json import logging from twisted.internet import defer from torba.baseaccount import BaseAccount from torba.basetransaction import TXORef from lbryschema.claim import ClaimDict from lbryschema.signer import SECP256k1, get_signer log = logging.getLogger(__name__) def generate_certificate(): secp256k1_private_key = get_signer(SECP256k1).generate().private_key.to_pem() return ClaimDict.generate_certificate(secp256k1_private_key, curve=SECP256k1), secp256k1_private_key class Account(BaseAccount): def __init__(self, *args, **kwargs): super().__init__(*args, **kwargs) self.certificates = {} def add_certificate_private_key(self, ref: TXORef, private_key): assert ref.id not in self.certificates, 'Trying to add a duplicate certificate.' self.certificates[ref.id] = private_key def get_certificate_private_key(self, ref: TXORef): return self.certificates.get(ref.id) @defer.inlineCallbacks def maybe_migrate_certificates(self): if not self.certificates: return addresses = {} results = { 'total': 0, 'not-a-claim-tx': 0, 'migrate-success': 0, 'migrate-failed': 0, 'previous-success': 0, 'previous-corrupted': 0 } for maybe_claim_id in list(self.certificates): results['total'] += 1 if ':' not in maybe_claim_id: claims = yield self.ledger.network.get_claims_by_ids(maybe_claim_id) if maybe_claim_id not in claims: log.warning( "Failed to migrate claim '%s', server did not return any claim information.", maybe_claim_id ) results['migrate-failed'] += 1 continue claim = claims[maybe_claim_id] tx = None if claim: tx = yield self.ledger.get_transaction(claim['txid']) else: log.warning(maybe_claim_id) if tx is not None: txo = tx.outputs[claim['nout']] if not txo.script.is_claim_involved: results['not-a-claim-tx'] += 1 raise ValueError( "Certificate with claim_id {} doesn't point to a valid transaction." .format(maybe_claim_id) ) tx_nout = '{txid}:{nout}'.format(**claim) self.certificates[tx_nout] = self.certificates[maybe_claim_id] del self.certificates[maybe_claim_id] log.info( "Migrated certificate with claim_id '%s' ('%s') to a new look up key %s.", maybe_claim_id, txo.script.values['claim_name'], tx_nout ) results['migrate-success'] += 1 else: if claim: addresses.setdefault(claim['address'], 0) addresses[claim['address']] += 1 log.warning( "Failed to migrate claim '%s', it's not associated with any of your addresses.", maybe_claim_id ) else: log.warning( "Failed to migrate claim '%s', it appears abandoned.", maybe_claim_id ) results['migrate-failed'] += 1 else: try: txid, nout = maybe_claim_id.split(':') tx = yield self.ledger.get_transaction(txid) if tx.outputs[int(nout)].script.is_claim_involved: results['previous-success'] += 1 else: results['previous-corrupted'] += 1 except Exception: log.exception("Couldn't verify certificate with look up key: %s", maybe_claim_id) results['previous-corrupted'] += 1 self.wallet.save() log.info('verifying and possibly migrating certificates:') log.info(json.dumps(results, indent=2)) if addresses: log.warning('failed for addresses:') log.warning(json.dumps( [{'address': a, 'number of certificates': c} for a, c in addresses.items()], indent=2 )) def get_balance(self, confirmations=6, include_claims=False, **constraints): if not include_claims: constraints.update({'is_claim': 0, 'is_update': 0, 'is_support': 0}) return super().get_balance(confirmations, **constraints) def get_unspent_outputs(self, include_claims=False, **constraints): if not include_claims: constraints.update({'is_claim': 0, 'is_update': 0, 'is_support': 0}) return super().get_unspent_outputs(**constraints) @defer.inlineCallbacks def get_channels(self): utxos = yield super().get_unspent_outputs( claim_type__any={'is_claim': 1, 'is_update': 1}, claim_name__like='@%' ) channels = [] for utxo in utxos: d = ClaimDict.deserialize(utxo.script.values['claim']) channels.append({ 'name': utxo.claim_name, 'claim_id': utxo.claim_id, 'txid': utxo.tx_ref.id, 'nout': utxo.position, 'have_certificate': utxo.ref.id in self.certificates }) return channels @classmethod def get_private_key_from_seed(cls, ledger: 'baseledger.BaseLedger', seed: str, password: str): return super().get_private_key_from_seed( ledger, seed, password or 'lbryum' ) @classmethod def from_dict(cls, ledger, wallet, d: dict) -> 'Account': account = super().from_dict(ledger, wallet, d) account.certificates = d.get('certificates', {}) return account def to_dict(self): d = super().to_dict() d['certificates'] = self.certificates return d @defer.inlineCallbacks def get_details(self, **kwargs): details = yield super().get_details(**kwargs) details['certificates'] = len(self.certificates) return details def get_claim(self, claim_id=None, txid=None, nout=None): if claim_id is not None: return self.ledger.db.get_claims(account=self, claim_id=claim_id) elif txid is not None and nout is not None: return self.ledger.db.get_claims(**{'account': self, 'txo.txid': txid, 'txo.position': nout}) def get_claims(self): return self.ledger.db.get_claims(account=self)