lbry-sdk/lbry/wallet/database.py
2020-01-01 15:57:56 -05:00

222 lines
8.2 KiB
Python

from typing import List
from lbry.wallet.client.basedatabase import BaseDatabase
from lbry.wallet.transaction import Output
from lbry.wallet.constants import TXO_TYPES, CLAIM_TYPES
class WalletDatabase(BaseDatabase):
SCHEMA_VERSION = f"{BaseDatabase.SCHEMA_VERSION}+1"
CREATE_TX_TABLE = """
create table if not exists tx (
txid text primary key,
raw blob not null,
height integer not null,
position integer not null,
is_verified boolean not null default 0,
purchased_claim_id text
);
create index if not exists tx_purchased_claim_id_idx on tx (purchased_claim_id);
"""
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,
txo_type integer not null default 0,
claim_id text,
claim_name text
);
create index if not exists txo_txid_idx on txo (txid);
create index if not exists txo_address_idx on txo (address);
create index if not exists txo_claim_id_idx on txo (claim_id);
create index if not exists txo_txo_type_idx on txo (txo_type);
"""
CREATE_TABLES_QUERY = (
BaseDatabase.PRAGMAS +
BaseDatabase.CREATE_ACCOUNT_TABLE +
BaseDatabase.CREATE_PUBKEY_ADDRESS_TABLE +
CREATE_TX_TABLE +
CREATE_TXO_TABLE +
BaseDatabase.CREATE_TXI_TABLE
)
def tx_to_row(self, tx):
row = super().tx_to_row(tx)
txos = tx.outputs
if len(txos) >= 2 and txos[1].can_decode_purchase_data:
txos[0].purchase = txos[1]
row['purchased_claim_id'] = txos[1].purchase_data.claim_id
return row
def txo_to_row(self, tx, address, txo):
row = super().txo_to_row(tx, address, txo)
if txo.is_claim:
if txo.can_decode_claim:
row['txo_type'] = TXO_TYPES.get(txo.claim.claim_type, TXO_TYPES['stream'])
else:
row['txo_type'] = TXO_TYPES['stream']
elif txo.is_support:
row['txo_type'] = TXO_TYPES['support']
elif txo.purchase is not None:
row['txo_type'] = TXO_TYPES['purchase']
row['claim_id'] = txo.purchased_claim_id
if txo.script.is_claim_involved:
row['claim_id'] = txo.claim_id
row['claim_name'] = txo.claim_name
return row
async def get_transactions(self, **constraints):
txs = await super().get_transactions(**constraints)
for tx in txs:
txos = tx.outputs
if len(txos) >= 2 and txos[1].can_decode_purchase_data:
txos[0].purchase = txos[1]
return txs
@staticmethod
def constrain_purchases(constraints):
accounts = constraints.pop('accounts', None)
assert accounts, "'accounts' argument required to find purchases"
if not {'purchased_claim_id', 'purchased_claim_id__in'}.intersection(constraints):
constraints['purchased_claim_id__is_not_null'] = True
constraints.update({
f'$account{i}': a.public_key.address for i, a in enumerate(accounts)
})
account_values = ', '.join([f':$account{i}' for i in range(len(accounts))])
constraints['txid__in'] = f"""
SELECT txid FROM txi JOIN account_address USING (address)
WHERE account_address.account IN ({account_values})
"""
async def get_purchases(self, **constraints):
self.constrain_purchases(constraints)
return [tx.outputs[0] for tx in await self.get_transactions(**constraints)]
def get_purchase_count(self, **constraints):
self.constrain_purchases(constraints)
return self.get_transaction_count(**constraints)
async def get_txos(self, wallet=None, no_tx=False, **constraints) -> List[Output]:
txos = await super().get_txos(wallet=wallet, no_tx=no_tx, **constraints)
channel_ids = set()
for txo in txos:
if txo.is_claim and txo.can_decode_claim:
if txo.claim.is_signed:
channel_ids.add(txo.claim.signing_channel_id)
if txo.claim.is_channel and wallet:
for account in wallet.accounts:
private_key = account.get_channel_private_key(
txo.claim.channel.public_key_bytes
)
if private_key:
txo.private_key = private_key
break
if channel_ids:
channels = {
txo.claim_id: txo for txo in
(await self.get_channels(
wallet=wallet,
claim_id__in=channel_ids
))
}
for txo in txos:
if txo.is_claim and txo.can_decode_claim:
txo.channel = channels.get(txo.claim.signing_channel_id, None)
return txos
@staticmethod
def constrain_claims(constraints):
claim_type = constraints.pop('claim_type', None)
if claim_type is not None:
constraints['txo_type'] = TXO_TYPES[claim_type]
else:
constraints['txo_type__in'] = CLAIM_TYPES
async def get_claims(self, **constraints) -> List[Output]:
self.constrain_claims(constraints)
return await self.get_utxos(**constraints)
def get_claim_count(self, **constraints):
self.constrain_claims(constraints)
return self.get_utxo_count(**constraints)
@staticmethod
def constrain_streams(constraints):
constraints['txo_type'] = TXO_TYPES['stream']
def get_streams(self, **constraints):
self.constrain_streams(constraints)
return self.get_claims(**constraints)
def get_stream_count(self, **constraints):
self.constrain_streams(constraints)
return self.get_claim_count(**constraints)
@staticmethod
def constrain_channels(constraints):
constraints['txo_type'] = TXO_TYPES['channel']
def get_channels(self, **constraints):
self.constrain_channels(constraints)
return self.get_claims(**constraints)
def get_channel_count(self, **constraints):
self.constrain_channels(constraints)
return self.get_claim_count(**constraints)
@staticmethod
def constrain_supports(constraints):
constraints['txo_type'] = TXO_TYPES['support']
def get_supports(self, **constraints):
self.constrain_supports(constraints)
return self.get_utxos(**constraints)
def get_support_count(self, **constraints):
self.constrain_supports(constraints)
return self.get_utxo_count(**constraints)
@staticmethod
def constrain_collections(constraints):
constraints['txo_type'] = TXO_TYPES['collection']
def get_collections(self, **constraints):
self.constrain_collections(constraints)
return self.get_utxos(**constraints)
def get_collection_count(self, **constraints):
self.constrain_collections(constraints)
return self.get_utxo_count(**constraints)
async def release_all_outputs(self, account):
await self.db.execute_fetchall(
"UPDATE txo SET is_reserved = 0 WHERE"
" is_reserved = 1 AND txo.address IN ("
" SELECT address from account_address WHERE account = ?"
" )", (account.public_key.address, )
)
def get_supports_summary(self, account_id):
return self.db.execute_fetchall(f"""
select txo.amount, exists(select * from txi where txi.txoid=txo.txoid) as spent,
(txo.txid in
(select txi.txid from txi join account_address a on txi.address = a.address
where a.account = ?)) as from_me,
(txo.address in (select address from account_address where account=?)) as to_me,
tx.height
from txo join tx using (txid) where txo_type={TXO_TYPES['support']}
""", (account_id, account_id))