lbry-sdk/lbrynet/wallet/database.py

105 lines
3.7 KiB
Python

from twisted.internet import defer
from torba.basedatabase import BaseDatabase
from torba.hash import TXRefImmutable
from torba.basetransaction import TXORef
from .certificate import Certificate
class WalletDatabase(BaseDatabase):
CREATE_TXO_TABLE = """
create table if not exists txo (
txid text references tx,
txoid text primary key,
address text references pubkey_address,
position integer not null,
amount integer not null,
script blob not null,
is_reserved boolean not null default 0,
claim_id text,
claim_name text,
is_claim boolean not null default 0,
is_update boolean not null default 0,
is_support boolean not null default 0,
is_buy boolean not null default 0,
is_sell boolean not null default 0
);
"""
CREATE_TABLES_QUERY = (
BaseDatabase.CREATE_TX_TABLE +
BaseDatabase.CREATE_PUBKEY_ADDRESS_TABLE +
CREATE_TXO_TABLE +
BaseDatabase.CREATE_TXI_TABLE
)
def txo_to_row(self, tx, address, txo):
row = super().txo_to_row(tx, address, txo)
row.update({
'is_claim': txo.script.is_claim_name,
'is_update': txo.script.is_update_claim,
'is_support': txo.script.is_support_claim,
'is_buy': txo.script.is_buy_claim,
'is_sell': txo.script.is_sell_claim,
})
if txo.script.is_claim_involved:
row['claim_id'] = txo.claim_id
row['claim_name'] = txo.claim_name
return row
@defer.inlineCallbacks
def get_certificates(self, name=None, channel_id=None, private_key_accounts=None, exclude_without_key=False):
if name is not None:
filter_sql = 'claim_name=?'
filter_value = name
elif channel_id is not None:
filter_sql = 'claim_id=?'
filter_value = channel_id
else:
raise ValueError("'name' or 'claim_id' is required")
txos = yield self.db.runQuery(
"""
SELECT tx.txid, txo.position, txo.claim_id
FROM txo JOIN tx ON tx.txid=txo.txid
WHERE {} AND (is_claim OR is_update)
GROUP BY txo.claim_id ORDER BY tx.height DESC;
""".format(filter_sql), (filter_value,)
)
certificates = []
# Lookup private keys for each certificate.
if private_key_accounts is not None:
for txid, nout, claim_id in txos:
for account in private_key_accounts:
private_key = account.get_certificate_private_key(
TXORef(TXRefImmutable.from_id(txid), nout)
)
certificates.append(Certificate(txid, nout, claim_id, name, private_key))
if exclude_without_key:
return [c for c in certificates if c.private_key is not None]
return certificates
@defer.inlineCallbacks
def get_claim(self, account, claim_id):
utxos = yield self.db.runQuery(
"""
SELECT amount, script, txo.txid, position
FROM txo JOIN tx ON tx.txid=txo.txid
WHERE claim_id=? AND (is_claim OR is_update) AND txoid NOT IN (SELECT txoid FROM txi)
ORDER BY tx.height DESC LIMIT 1;
""", (claim_id,)
)
output_class = account.ledger.transaction_class.output_class
defer.returnValue([
output_class(
values[0],
output_class.script_class(values[1]),
TXRefImmutable.from_id(values[2]),
position=values[3]
) for values in utxos
])