forked from LBRYCommunity/lbry-sdk
320 lines
11 KiB
Python
320 lines
11 KiB
Python
import os
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import json
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from binascii import hexlify
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from twisted.internet import defer
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from torba.basemanager import BaseWalletManager
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from lbryschema.uri import parse_lbry_uri
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from lbryschema.error import URIParseError
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from lbryschema.claim import ClaimDict
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from .ledger import MainNetLedger
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from .account import generate_certificate
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from .transaction import Transaction
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from .database import WalletDatabase
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class BackwardsCompatibleNetwork:
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def __init__(self, manager):
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self.manager = manager
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def get_local_height(self):
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for ledger in self.manager.ledgers.values():
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assert isinstance(ledger, MainNetLedger)
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return ledger.headers.height
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def get_server_height(self):
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return self.get_local_height()
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class LbryWalletManager(BaseWalletManager):
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@property
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def ledger(self) -> MainNetLedger:
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return self.default_account.ledger
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@property
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def db(self) -> WalletDatabase:
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return self.ledger.db
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@property
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def wallet(self):
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return self
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@property
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def network(self):
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return BackwardsCompatibleNetwork(self)
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@property
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def use_encryption(self):
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# TODO: implement this
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return False
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@property
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def is_first_run(self):
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return True
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def check_locked(self):
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return defer.succeed(False)
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@classmethod
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def from_lbrynet_config(cls, settings, db):
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ledger_id = {
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'lbrycrd_main': 'lbc_mainnet',
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'lbrycrd_testnet': 'lbc_testnet',
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'lbrycrd_regtest': 'lbc_regtest'
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}[settings['blockchain_name']]
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ledger_config = {
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'auto_connect': True,
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'default_servers': settings['lbryum_servers'],
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'data_path': settings['lbryum_wallet_dir'],
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'use_keyring': settings['use_keyring'],
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#'db': db
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}
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wallet_file_path = os.path.join(settings['lbryum_wallet_dir'], 'default_wallet')
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if os.path.exists(wallet_file_path):
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with open(wallet_file_path, 'r') as f:
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json_data = f.read()
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json_dict = json.loads(json_data)
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# TODO: After several public releases of new torba based wallet, we can delete
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# this lbryum->torba conversion code and require that users who still
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# have old structured wallets install one of the earlier releases that
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# still has the below conversion code.
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if 'master_public_keys' in json_dict:
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json_data = json.dumps({
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'version': 1,
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'name': 'My Wallet',
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'accounts': [{
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'version': 1,
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'name': 'Main Account',
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'ledger': 'lbc_mainnet',
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'encrypted': json_dict['use_encryption'],
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'seed': json_dict['seed'],
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'seed_version': json_dict['seed_version'],
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'private_key': json_dict['master_private_keys']['x/'],
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'public_key': json_dict['master_public_keys']['x/'],
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'certificates': json_dict.get('claim_certificates', {}),
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'address_generator': {
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'name': 'deterministic-chain',
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'receiving': {'gap': 20, 'maximum_uses_per_address': 2},
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'change': {'gap': 6, 'maximum_uses_per_address': 2}
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}
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}]
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}, indent=4, sort_keys=True)
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with open(wallet_file_path, 'w') as f:
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f.write(json_data)
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return cls.from_config({
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'ledgers': {ledger_id: ledger_config},
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'wallets': [wallet_file_path]
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})
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def get_best_blockhash(self):
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return defer.succeed('')
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def get_unused_address(self):
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return self.default_account.receiving.get_or_create_usable_address()
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def get_new_address(self):
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return self.get_unused_address()
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def reserve_points(self, address, amount):
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# TODO: check if we have enough to cover amount
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return ReservedPoints(address, amount)
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def send_points_to_address(self, reserved, amount):
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destination_address = reserved.identifier.encode('latin1')
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return self.send_amount_to_address(amount, destination_address)
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def get_wallet_info_query_handler_factory(self):
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return LBRYcrdAddressQueryHandlerFactory(self)
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def get_info_exchanger(self):
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return LBRYcrdAddressRequester(self)
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def resolve(self, *uris, **kwargs):
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page = kwargs.get('page', 0)
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page_size = kwargs.get('page_size', 10)
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ledger = self.default_account.ledger # type: MainNetLedger
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return ledger.resolve(page, page_size, *uris)
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def get_name_claims(self):
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return defer.succeed([])
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def address_is_mine(self, address):
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return defer.succeed(True)
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def get_history(self):
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return defer.succeed([])
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@defer.inlineCallbacks
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def claim_name(self, name, amount, claim_dict, certificate=None, claim_address=None):
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account = self.default_account
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claim = ClaimDict.load_dict(claim_dict)
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if not claim_address:
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claim_address = yield account.receiving.get_or_create_usable_address()
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if certificate:
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claim = claim.sign(
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certificate.private_key, claim_address, certificate.claim_id
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)
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tx = yield Transaction.claim(name.encode(), claim, amount, claim_address, [account], account)
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yield account.ledger.broadcast(tx)
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yield self.old_db.save_claims([self._old_get_temp_claim_info(
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tx, tx.outputs[0], claim_address, claim_dict, name, amount
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)])
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# TODO: release reserved tx outputs in case anything fails by this point
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defer.returnValue(tx)
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def _old_get_temp_claim_info(self, tx, txo, address, claim_dict, name, bid):
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if isinstance(address, memoryview):
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address = str(address)
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return {
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"claim_id": hexlify(tx.get_claim_id(txo.position)).decode(),
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"name": name,
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"amount": bid,
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"address": address,
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"txid": tx.id,
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"nout": txo.position,
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"value": claim_dict,
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"height": -1,
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"claim_sequence": -1,
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}
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@defer.inlineCallbacks
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def claim_new_channel(self, channel_name, amount):
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try:
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parsed = parse_lbry_uri(channel_name)
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if not parsed.is_channel:
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raise Exception("Cannot make a new channel for a non channel name")
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if parsed.path:
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raise Exception("Invalid channel uri")
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except (TypeError, URIParseError):
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raise Exception("Invalid channel name")
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if amount <= 0:
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raise Exception("Invalid amount")
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account = self.default_account
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address = yield account.receiving.get_or_create_usable_address()
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cert, key = generate_certificate()
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tx = yield Transaction.claim(channel_name.encode(), cert, amount, address, [account], account)
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yield account.ledger.broadcast(tx)
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account.add_certificate_private_key(tx, 0, key.decode())
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# TODO: release reserved tx outputs in case anything fails by this point
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defer.returnValue(tx)
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def get_certificates(self, name):
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return self.db.get_certificates(name, [self.default_account], exclude_without_key=True)
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def update_peer_address(self, peer, address):
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pass # TODO: Data payments is disabled
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def get_unused_address_for_peer(self, peer):
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# TODO: Data payments is disabled
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return self.get_unused_address()
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def add_expected_payment(self, peer, amount):
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pass # TODO: Data payments is disabled
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def send_points(self, reserved_points, amount):
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defer.succeed(True) # TODO: Data payments is disabled
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def cancel_point_reservation(self, reserved_points):
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pass # fixme: disabled for now.
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def save(self):
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for wallet in self.wallets:
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wallet.save()
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class ReservedPoints:
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def __init__(self, identifier, amount):
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self.identifier = identifier
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self.amount = amount
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class ClientRequest:
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def __init__(self, request_dict, response_identifier=None):
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self.request_dict = request_dict
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self.response_identifier = response_identifier
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class LBRYcrdAddressRequester:
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def __init__(self, wallet):
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self.wallet = wallet
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self._protocols = []
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def send_next_request(self, peer, protocol):
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if not protocol in self._protocols:
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r = ClientRequest({'lbrycrd_address': True}, 'lbrycrd_address')
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d = protocol.add_request(r)
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d.addCallback(self._handle_address_response, peer, r, protocol)
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d.addErrback(self._request_failed, peer)
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self._protocols.append(protocol)
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return defer.succeed(True)
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else:
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return defer.succeed(False)
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def _handle_address_response(self, response_dict, peer, request, protocol):
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if request.response_identifier not in response_dict:
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raise ValueError(
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"Expected {} in response but did not get it".format(request.response_identifier))
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assert protocol in self._protocols, "Responding protocol is not in our list of protocols"
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address = response_dict[request.response_identifier]
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self.wallet.update_peer_address(peer, address)
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def _request_failed(self, error, peer):
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raise Exception(
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"A peer failed to send a valid public key response. Error: {}, peer: {}".format(
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error.getErrorMessage(), str(peer)
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)
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)
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class LBRYcrdAddressQueryHandlerFactory:
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def __init__(self, wallet):
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self.wallet = wallet
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def build_query_handler(self):
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q_h = LBRYcrdAddressQueryHandler(self.wallet)
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return q_h
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def get_primary_query_identifier(self):
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return 'lbrycrd_address'
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def get_description(self):
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return "LBRYcrd Address - an address for receiving payments via LBRYcrd"
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class LBRYcrdAddressQueryHandler:
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def __init__(self, wallet):
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self.wallet = wallet
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self.query_identifiers = ['lbrycrd_address']
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self.address = None
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self.peer = None
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def register_with_request_handler(self, request_handler, peer):
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self.peer = peer
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request_handler.register_query_handler(self, self.query_identifiers)
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def handle_queries(self, queries):
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def create_response(address):
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self.address = address
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fields = {'lbrycrd_address': address}
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return fields
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if self.query_identifiers[0] in queries:
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d = self.wallet.get_unused_address_for_peer(self.peer)
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d.addCallback(create_response)
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return d
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if self.address is None:
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raise Exception("Expected a request for an address, but did not receive one")
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else:
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return defer.succeed({})
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