lbry-sdk/lbrynet/extras/wallet/ledger.py
2018-11-04 10:50:15 -05:00

113 lines
4.3 KiB
Python

import asyncio
import logging
from binascii import unhexlify
from lbrynet.schema.error import URIParseError
from lbrynet.schema.uri import parse_lbry_uri
from torba.client.baseledger import BaseLedger
from .resolve import Resolver
from .account import Account
from .network import Network
from .database import WalletDatabase
from .transaction import Transaction
from .header import Headers, UnvalidatedHeaders
log = logging.getLogger(__name__)
class MainNetLedger(BaseLedger):
name = 'LBRY Credits'
symbol = 'LBC'
network_name = 'mainnet'
headers: Headers
account_class = Account
database_class = WalletDatabase
headers_class = Headers
network_class = Network
transaction_class = Transaction
secret_prefix = bytes((0x1c,))
pubkey_address_prefix = bytes((0x55,))
script_address_prefix = bytes((0x7a,))
extended_public_key_prefix = unhexlify('0488b21e')
extended_private_key_prefix = unhexlify('0488ade4')
max_target = 0x0000ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
genesis_hash = '9c89283ba0f3227f6c03b70216b9f665f0118d5e0fa729cedf4fb34d6a34f463'
genesis_bits = 0x1f00ffff
target_timespan = 150
default_fee_per_byte = 50
default_fee_per_name_char = 200000
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.fee_per_name_char = self.config.get('fee_per_name_char', self.default_fee_per_name_char)
@property
def resolver(self):
return Resolver(self.headers.claim_trie_root, self.headers.height, self.transaction_class,
hash160_to_address=self.hash160_to_address, network=self.network)
async def resolve(self, page, page_size, *uris):
for uri in uris:
try:
parse_lbry_uri(uri)
except URIParseError as err:
return {'error': err.args[0]}
resolutions = await self.network.get_values_for_uris(self.headers.hash().decode(), *uris)
return await self.resolver._handle_resolutions(resolutions, uris, page, page_size)
async def get_claim_by_claim_id(self, claim_id):
result = (await self.network.get_claims_by_ids(claim_id)).pop(claim_id, {})
return await self.resolver.get_certificate_and_validate_result(result)
async def get_claim_by_outpoint(self, txid, nout):
claims = (await self.network.get_claims_in_tx(txid)) or []
for claim in claims:
if claim['nout'] == nout:
return await self.resolver.get_certificate_and_validate_result(claim)
return 'claim not found'
async def start(self):
await super().start()
await asyncio.gather(*(a.maybe_migrate_certificates() for a in self.accounts))
await asyncio.gather(*(a.save_max_gap() for a in self.accounts))
await self._report_state()
async def _report_state(self):
for account in self.accounts:
total_receiving = len((await account.receiving.get_addresses()))
total_change = len((await account.change.get_addresses()))
channel_count = await account.get_channel_count()
claim_count = await account.get_claim_count()
log.info("Loaded account %s with %d receiving addresses (gap: %d), "
"%d change addresses (gap: %d), %d channels, %d certificates and %d claims.",
account.id, total_receiving, account.receiving.gap, total_change, account.change.gap,
channel_count, len(account.certificates), claim_count)
class TestNetLedger(MainNetLedger):
network_name = 'testnet'
pubkey_address_prefix = bytes((111,))
script_address_prefix = bytes((196,))
extended_public_key_prefix = unhexlify('043587cf')
extended_private_key_prefix = unhexlify('04358394')
class RegTestLedger(MainNetLedger):
network_name = 'regtest'
headers_class = UnvalidatedHeaders
pubkey_address_prefix = bytes((111,))
script_address_prefix = bytes((196,))
extended_public_key_prefix = unhexlify('043587cf')
extended_private_key_prefix = unhexlify('04358394')
max_target = 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
genesis_hash = '6e3fcf1299d4ec5d79c3a4c91d624a4acf9e2e173d95a1a0504f677669687556'
genesis_bits = 0x207fffff
target_timespan = 1