import os import six import json from binascii import hexlify from twisted.internet import defer from torba.manager import WalletManager as BaseWalletManager from torba.wallet import WalletStorage from lbryschema.uri import parse_lbry_uri from lbryschema.error import URIParseError from lbryschema.claim import ClaimDict from .ledger import MainNetLedger # pylint: disable=unused-import from .account import generate_certificate from .transaction import Transaction from .database import WalletDatabase # pylint: disable=unused-import if six.PY3: buffer = memoryview class BackwardsCompatibleNetwork(object): def __init__(self, manager): self.manager = manager def get_local_height(self): return len(self.manager.ledgers.values()[0].headers) def get_server_height(self): return self.get_local_height() class LbryWalletManager(BaseWalletManager): @property def ledger(self): # type: () -> MainNetLedger return self.default_account.ledger @property def db(self): # type: () -> WalletDatabase return self.ledger.db @property def wallet(self): return self @property def network(self): return BackwardsCompatibleNetwork(self) @property def use_encryption(self): # TODO: implement this return False @property def is_first_run(self): return True def check_locked(self): return defer.succeed(False) @classmethod def from_lbrynet_config(cls, settings, db): ledger_id = { 'lbrycrd_main': 'lbc_mainnet', 'lbrycrd_testnet': 'lbc_testnet', 'lbrycrd_regtest': 'lbc_regtest' }[settings['blockchain_name']] ledger_config = { 'auto_connect': True, 'default_servers': settings['lbryum_servers'], 'data_path': settings['lbryum_wallet_dir'], 'use_keyring': settings['use_keyring'], #'db': db } wallet_file_path = os.path.join(settings['lbryum_wallet_dir'], 'default_wallet') if os.path.exists(wallet_file_path): with open(wallet_file_path, 'r') as f: json_data = f.read() json_dict = json.loads(json_data) # TODO: After several public releases of new torba based wallet, we can delete # this lbryum->torba conversion code and require that users who still # have old structured wallets install one of the earlier releases that # still has the below conversion code. if 'master_public_keys' in json_dict: json_data = json.dumps({ 'version': 1, 'name': 'My Wallet', 'accounts': [{ 'version': 1, 'name': 'Main Account', 'ledger': 'lbc_mainnet', 'encrypted': json_dict['use_encryption'], 'seed': json_dict['seed'], 'seed_version': json_dict['seed_version'], 'private_key': json_dict['master_private_keys']['x/'], 'public_key': json_dict['master_public_keys']['x/'], 'certificates': json_dict['claim_certificates'], 'receiving_gap': 20, 'change_gap': 6, 'receiving_maximum_uses_per_address': 2, 'change_maximum_uses_per_address': 2, 'is_hd': True }] }, indent=4, sort_keys=True) with open(wallet_file_path, 'w') as f: f.write(json_data) return cls.from_config({ 'ledgers': {ledger_id: ledger_config}, 'wallets': [wallet_file_path] }) def get_best_blockhash(self): return defer.succeed('') def get_unused_address(self): return self.default_account.receiving.get_or_create_usable_address() def get_new_address(self): return self.get_unused_address() def reserve_points(self, address, amount): # TODO: check if we have enough to cover amount return ReservedPoints(address, amount) def send_points_to_address(self, reserved, amount): destination_address = reserved.identifier.encode('latin1') return self.send_amount_to_address(amount, destination_address) def get_wallet_info_query_handler_factory(self): return LBRYcrdAddressQueryHandlerFactory(self) def get_info_exchanger(self): return LBRYcrdAddressRequester(self) def resolve(self, *uris, **kwargs): page = kwargs.get('page', 0) page_size = kwargs.get('page_size', 10) ledger = self.default_account.ledger # type: MainNetLedger return ledger.resolve(page, page_size, *uris) def get_name_claims(self): return defer.succeed([]) def address_is_mine(self, address): return defer.succeed(True) def get_history(self): return defer.succeed([]) @defer.inlineCallbacks def claim_name(self, name, amount, claim_dict, certificate=None, claim_address=None): account = self.default_account claim = ClaimDict.load_dict(claim_dict) if not claim_address: claim_address = yield account.receiving.get_or_create_usable_address() if certificate: claim = claim.sign( certificate.private_key, claim_address, certificate.claim_id ) tx = yield Transaction.claim(name.encode(), claim, amount, claim_address, [account], account) yield account.ledger.broadcast(tx) yield self.old_db.save_claims([self._old_get_temp_claim_info( tx, tx.outputs[0], claim_address, claim_dict, name, amount )]) # TODO: release reserved tx outputs in case anything fails by this point defer.returnValue(tx) def _old_get_temp_claim_info(self, tx, txo, address, claim_dict, name, bid): if isinstance(address, buffer): address = str(address) return { "claim_id": hexlify(tx.get_claim_id(txo.index)).decode(), "name": name, "amount": bid, "address": address.decode(), "txid": tx.hex_id.decode(), "nout": txo.index, "value": claim_dict, "height": -1, "claim_sequence": -1, } @defer.inlineCallbacks def claim_new_channel(self, channel_name, amount): try: parsed = parse_lbry_uri(channel_name) if not parsed.is_channel: raise Exception("Cannot make a new channel for a non channel name") if parsed.path: raise Exception("Invalid channel uri") except (TypeError, URIParseError): raise Exception("Invalid channel name") if amount <= 0: raise Exception("Invalid amount") account = self.default_account address = yield account.receiving.get_or_create_usable_address() cert, key = generate_certificate() tx = yield Transaction.claim(channel_name.encode(), cert, amount, address, [account], account) yield account.ledger.broadcast(tx) account.add_certificate_private_key(tx, 0, key.decode()) # TODO: release reserved tx outputs in case anything fails by this point defer.returnValue(tx) def get_certificates(self, name): return self.db.get_certificates(name, [self.default_account], exclude_without_key=True) def update_peer_address(self, peer, address): pass # TODO: Data payments is disabled def get_unused_address_for_peer(self, peer): # TODO: Data payments is disabled return self.get_unused_address() def add_expected_payment(self, peer, amount): pass # TODO: Data payments is disabled def send_points(self, reserved_points, amount): defer.succeed(True) # TODO: Data payments is disabled def cancel_point_reservation(self, reserved_points): pass # fixme: disabled for now. def save(self): for wallet in self.wallets: wallet.save() class ReservedPoints(object): def __init__(self, identifier, amount): self.identifier = identifier self.amount = amount class ClientRequest(object): def __init__(self, request_dict, response_identifier=None): self.request_dict = request_dict self.response_identifier = response_identifier class LBRYcrdAddressRequester(object): def __init__(self, wallet): self.wallet = wallet self._protocols = [] def send_next_request(self, peer, protocol): if not protocol in self._protocols: r = ClientRequest({'lbrycrd_address': True}, 'lbrycrd_address') d = protocol.add_request(r) d.addCallback(self._handle_address_response, peer, r, protocol) d.addErrback(self._request_failed, peer) self._protocols.append(protocol) return defer.succeed(True) else: return defer.succeed(False) def _handle_address_response(self, response_dict, peer, request, protocol): if request.response_identifier not in response_dict: raise ValueError( "Expected {} in response but did not get it".format(request.response_identifier)) assert protocol in self._protocols, "Responding protocol is not in our list of protocols" address = response_dict[request.response_identifier] self.wallet.update_peer_address(peer, address) def _request_failed(self, error, peer): raise Exception( "A peer failed to send a valid public key response. Error: {}, peer: {}".format( error.getErrorMessage(), str(peer) ) ) class LBRYcrdAddressQueryHandlerFactory(object): def __init__(self, wallet): self.wallet = wallet def build_query_handler(self): q_h = LBRYcrdAddressQueryHandler(self.wallet) return q_h def get_primary_query_identifier(self): return 'lbrycrd_address' def get_description(self): return "LBRYcrd Address - an address for receiving payments via LBRYcrd" class LBRYcrdAddressQueryHandler(object): def __init__(self, wallet): self.wallet = wallet self.query_identifiers = ['lbrycrd_address'] self.address = None self.peer = None def register_with_request_handler(self, request_handler, peer): self.peer = peer request_handler.register_query_handler(self, self.query_identifiers) def handle_queries(self, queries): def create_response(address): self.address = address fields = {'lbrycrd_address': address} return fields if self.query_identifiers[0] in queries: d = self.wallet.get_unused_address_for_peer(self.peer) d.addCallback(create_response) return d if self.address is None: raise Exception("Expected a request for an address, but did not receive one") else: return defer.succeed({})