lbry-sdk/lbrynet/wallet/manager.py

323 lines
11 KiB
Python
Raw Normal View History

2018-05-26 05:26:07 +02:00
import os
2018-07-13 06:46:34 +02:00
import six
2018-07-12 05:18:59 +02:00
import json
from binascii import hexlify
from twisted.internet import defer
2018-05-26 05:26:07 +02:00
from torba.manager import WalletManager as BaseWalletManager
2018-07-05 04:16:02 +02:00
from lbryschema.uri import parse_lbry_uri
from lbryschema.error import URIParseError
2018-07-12 19:23:18 +02:00
from lbryschema.claim import ClaimDict
2018-07-01 23:21:18 +02:00
2018-07-05 05:16:52 +02:00
from .ledger import MainNetLedger # pylint: disable=unused-import
2018-07-05 04:16:02 +02:00
from .account import generate_certificate
from .transaction import Transaction
2018-07-12 18:14:47 +02:00
from .database import WalletDatabase # pylint: disable=unused-import
2018-06-14 21:18:36 +02:00
2018-07-13 06:46:34 +02:00
if six.PY3:
buffer = memoryview
2018-07-05 05:16:52 +02:00
class BackwardsCompatibleNetwork(object):
2018-05-26 05:26:07 +02:00
def __init__(self, manager):
self.manager = manager
2018-05-26 05:26:07 +02:00
def get_local_height(self):
return len(self.manager.ledgers.values()[0].headers)
2018-05-26 05:26:07 +02:00
def get_server_height(self):
return self.get_local_height()
class LbryWalletManager(BaseWalletManager):
2018-07-12 18:14:47 +02:00
@property
def ledger(self): # type: () -> MainNetLedger
return self.default_account.ledger
@property
def db(self): # type: () -> WalletDatabase
return self.ledger.db
2018-05-26 05:26:07 +02:00
@property
def wallet(self):
return self
@property
def network(self):
return BackwardsCompatibleNetwork(self)
@property
2018-05-26 05:26:07 +02:00
def use_encryption(self):
# TODO: implement this
return False
@property
2018-05-26 05:26:07 +02:00
def is_first_run(self):
return True
def check_locked(self):
return defer.succeed(False)
@classmethod
2018-07-12 05:18:59 +02:00
def from_lbrynet_config(cls, settings, db):
2018-07-01 23:21:18 +02:00
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'],
2018-07-07 07:11:27 +02:00
'data_path': settings['lbryum_wallet_dir'],
2018-07-12 05:18:59 +02:00
'use_keyring': settings['use_keyring'],
2018-07-12 07:05:24 +02:00
#'db': db
2018-07-01 23:21:18 +02:00
}
2018-07-12 05:18:59 +02:00
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
2018-07-12 05:18:59 +02:00
}]
}, indent=4, sort_keys=True)
with open(wallet_file_path, 'w') as f:
f.write(json_data)
2018-07-01 23:21:18 +02:00
return cls.from_config({
'ledgers': {ledger_id: ledger_config},
2018-07-12 05:18:59 +02:00
'wallets': [wallet_file_path]
2018-05-26 05:26:07 +02:00
})
def get_best_blockhash(self):
return defer.succeed('')
def get_unused_address(self):
2018-07-12 18:44:19 +02:00
return self.default_account.receiving.get_or_create_usable_address()
2018-05-26 05:26:07 +02:00
def get_new_address(self):
return self.get_unused_address()
2018-05-26 05:26:07 +02:00
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)
2018-05-26 05:26:07 +02:00
def get_wallet_info_query_handler_factory(self):
return LBRYcrdAddressQueryHandlerFactory(self)
def get_info_exchanger(self):
return LBRYcrdAddressRequester(self)
2018-07-01 23:21:18 +02:00
def resolve(self, *uris, **kwargs):
2018-07-10 06:30:13 +02:00
page = kwargs.get('page', 0)
page_size = kwargs.get('page_size', 10)
2018-07-01 23:21:18 +02:00
ledger = self.default_account.ledger # type: MainNetLedger
2018-07-10 06:30:13 +02:00
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([])
2018-07-12 05:18:59 +02:00
@defer.inlineCallbacks
2018-07-12 19:23:18 +02:00
def claim_name(self, name, amount, claim_dict, certificate=None, claim_address=None):
2018-07-12 05:18:59 +02:00
account = self.default_account
2018-07-12 19:23:18 +02:00
claim = ClaimDict.load_dict(claim_dict)
2018-07-12 05:18:59 +02:00
if not claim_address:
claim_address = yield account.receiving.get_or_create_usable_address()
if certificate:
claim = claim.sign(
2018-07-12 18:14:47 +02:00
certificate.private_key, claim_address, certificate.claim_id
2018-07-12 05:18:59 +02:00
)
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
)])
2018-07-12 05:18:59 +02:00
# TODO: release reserved tx outputs in case anything fails by this point
defer.returnValue(tx)
2018-07-05 04:16:02 +02:00
def _old_get_temp_claim_info(self, tx, txo, address, claim_dict, name, bid):
2018-07-13 06:46:34 +02:00
if isinstance(address, buffer):
address = str(address)
return {
"claim_id": hexlify(tx.get_claim_id(txo.position)).decode(),
"name": name,
"amount": bid,
"address": address.decode(),
"txid": tx.id.decode(),
"nout": txo.position,
"value": claim_dict,
"height": -1,
"claim_sequence": -1,
}
2018-07-05 04:16:02 +02:00
@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")
2018-06-12 17:53:29 +02:00
account = self.default_account
2018-07-05 04:16:02 +02:00
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)
2018-07-12 18:32:04 +02:00
account.add_certificate_private_key(tx, 0, key.decode())
2018-07-05 04:16:02 +02:00
# TODO: release reserved tx outputs in case anything fails by this point
defer.returnValue(tx)
2018-06-12 17:53:29 +02:00
2018-07-12 18:14:47 +02:00
def get_certificates(self, name):
return self.db.get_certificates(name, [self.default_account], exclude_without_key=True)
2018-07-10 06:30:13 +02:00
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.
2018-05-26 05:26:07 +02:00
2018-07-12 18:18:58 +02:00
def save(self):
for wallet in self.wallets:
wallet.save()
2018-07-12 18:14:47 +02:00
2018-07-05 05:16:52 +02:00
class ReservedPoints(object):
2018-05-26 05:26:07 +02:00
def __init__(self, identifier, amount):
self.identifier = identifier
self.amount = amount
2018-07-05 05:16:52 +02:00
class ClientRequest(object):
2018-05-26 05:26:07 +02:00
def __init__(self, request_dict, response_identifier=None):
self.request_dict = request_dict
self.response_identifier = response_identifier
2018-07-05 05:16:52 +02:00
class LBRYcrdAddressRequester(object):
2018-05-26 05:26:07 +02:00
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):
2018-07-05 05:16:52 +02:00
raise Exception(
"A peer failed to send a valid public key response. Error: {}, peer: {}".format(
error.getErrorMessage(), str(peer)
)
)
2018-05-26 05:26:07 +02:00
2018-07-05 05:16:52 +02:00
class LBRYcrdAddressQueryHandlerFactory(object):
2018-05-26 05:26:07 +02:00
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"
2018-07-05 05:16:52 +02:00
class LBRYcrdAddressQueryHandler(object):
2018-05-26 05:26:07 +02:00
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
2018-03-27 08:40:44 +02:00
2018-05-26 05:26:07 +02:00
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({})