95 lines
No EOL
3.7 KiB
Python
95 lines
No EOL
3.7 KiB
Python
import logging
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from binascii import unhexlify
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from twisted.internet import defer
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from torba.baseaccount import BaseAccount
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from lbryschema.claim import ClaimDict
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from lbryschema.signer import SECP256k1, get_signer
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from .transaction import Transaction
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log = logging.getLogger(__name__)
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def generate_certificate():
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secp256k1_private_key = get_signer(SECP256k1).generate().private_key.to_pem()
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return ClaimDict.generate_certificate(secp256k1_private_key, curve=SECP256k1), secp256k1_private_key
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def get_certificate_lookup(tx_or_hash, nout):
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if isinstance(tx_or_hash, Transaction):
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return '{}:{}'.format(tx_or_hash.id, nout)
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else:
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return '{}:{}'.format(tx_or_hash, nout)
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class Account(BaseAccount):
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self.certificates = {}
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def add_certificate_private_key(self, tx_or_hash, nout, private_key):
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lookup_key = get_certificate_lookup(tx_or_hash, nout)
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assert lookup_key not in self.certificates, 'Trying to add a duplicate certificate.'
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self.certificates[lookup_key] = private_key
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def get_certificate_private_key(self, tx_or_hash, nout):
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return self.certificates.get(get_certificate_lookup(tx_or_hash, nout))
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@defer.inlineCallbacks
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def maybe_migrate_certificates(self):
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failed, succeded, total = 0, 0, 0
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for maybe_claim_id in self.certificates.keys():
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total += 1
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if ':' not in maybe_claim_id:
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claims = yield self.ledger.network.get_claims_by_ids(maybe_claim_id)
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claim = claims[maybe_claim_id]
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txhash = unhexlify(claim['txid'])[::-1]
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tx = yield self.ledger.get_transaction(txhash)
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if tx is not None:
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txo = tx.outputs[claim['nout']]
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assert txo.script.is_claim_involved,\
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"Certificate with claim_id {} doesn't point to a valid transaction."\
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.format(maybe_claim_id)
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tx_nout = '{txid}:{nout}'.format(**claim)
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self.certificates[tx_nout] = self.certificates[maybe_claim_id]
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del self.certificates[maybe_claim_id]
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log.info(
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"Migrated certificate with claim_id '%s' ('%s') to a new look up key %s.",
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maybe_claim_id, txo.script.values['claim_name'], tx_nout
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)
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succeded += 1
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else:
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log.warning(
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"Failed to migrate claim '%s', it's not associated with any of your addresses.",
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maybe_claim_id
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)
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failed += 1
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log.info('Checked: %s, Converted: %s, Failed: %s', total, succeded, failed)
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def get_balance(self, confirmations=6, include_claims=False, **constraints):
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if not include_claims:
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constraints.update({'is_claim': 0, 'is_update': 0, 'is_support': 0})
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return super().get_balance(confirmations, **constraints)
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def get_unspent_outputs(self, include_claims=False, **constraints):
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if not include_claims:
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constraints.update({'is_claim': 0, 'is_update': 0, 'is_support': 0})
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return super().get_unspent_outputs(**constraints)
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@classmethod
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def from_dict(cls, ledger, d): # type: (torba.baseledger.BaseLedger, Dict) -> BaseAccount
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account = super().from_dict(ledger, d)
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account.certificates = d['certificates']
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return account
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def to_dict(self):
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d = super().to_dict()
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d['certificates'] = self.certificates
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return d
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def get_claim(self, claim_id):
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return self.ledger.db.get_claim(self, claim_id) |