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fix max_key_fee

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This commit is contained in:
Jack Robison 2019-02-08 21:08:41 -05:00
parent f65e70df2f
commit c9d54bb049
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GPG key ID: DF25C68FE0239BB2
4 changed files with 52 additions and 10 deletions
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2
lbrynet/conf.py
View file

@ -498,7 +498,7 @@ class Config(CLIConfig):
)
max_key_fee = MaxKeyFee(
"Don't download streams with fees exceeding this amount", {'currency': 'USD', 'amount': 50.0}
) # TODO: use this
)
# reflector settings
reflect_streams = Toggle(

20
lbrynet/stream/stream_manager.py
View file

@ -4,7 +4,7 @@ import typing
import binascii
import logging
import random
from lbrynet.error import ResolveError, InvalidStreamDescriptorError
from lbrynet.error import ResolveError, InvalidStreamDescriptorError, KeyFeeAboveMaxAllowed, InsufficientFundsError
from lbrynet.stream.downloader import StreamDownloader
from lbrynet.stream.managed_stream import ManagedStream
from lbrynet.schema.claim import ClaimDict
@ -287,9 +287,6 @@ class StreamManager:
already_started = tuple(filter(lambda s: s.descriptor.sd_hash == sd_hash, self.streams))
if already_started:
return already_started[0]
if should_pay and fee_address and fee_amount and fee_amount > await self.wallet.default_account.get_balance():
raise Exception("not enough funds")
self.starting_streams[sd_hash] = asyncio.Future(loop=self.loop)
stream_task = self.loop.create_task(
self._download_stream_from_claim(node, self.config.download_dir, claim_info, file_name)
@ -354,7 +351,7 @@ class StreamManager:
timeout = timeout or self.config.download_timeout
parsed_uri = parse_lbry_uri(uri)
if parsed_uri.is_channel:
raise Exception("cannot download a channel claim, specify a /path")
raise ResolveError("cannot download a channel claim, specify a /path")
resolved = (await self.wallet.resolve(uri)).get(uri, {})
resolved = resolved if 'value' in resolved else resolved.get('claim')
@ -372,6 +369,19 @@ class StreamManager:
fee_amount = round(exchange_rate_manager.convert_currency(
claim.source_fee.currency, "LBC", claim.source_fee.amount
), 5)
max_fee_amount = round(exchange_rate_manager.convert_currency(
self.config.max_key_fee['currency'], "LBC", self.config.max_key_fee['amount']
), 5)
if fee_amount > max_fee_amount:
msg = f"fee of {fee_amount} exceeds max configured to allow of {max_fee_amount}"
log.warning(msg)
raise KeyFeeAboveMaxAllowed(msg)
else:
balance = await self.wallet.default_account.get_balance()
if fee_amount > balance:
msg = f"fee of {fee_amount} exceeds max available balance"
log.warning(msg)
raise InsufficientFundsError(msg)
fee_address = claim.source_fee.address.decode()
outpoint = f"{resolved['txid']}:{resolved['nout']}"
existing = self.get_filtered_streams(outpoint=outpoint)

2
tests/unit/lbrynet_daemon/test_ExchangeRateManager.py
View file

@ -40,7 +40,7 @@ def get_dummy_exchange_rate_manager(time):
'BTCLBC': {'spot': 3.0, 'ts': time.time() + 1},
'USDBTC': {'spot': 2.0, 'ts': time.time() + 2}
}
return DummyExchangeRateManager([BTCLBCFeed()], rates)
return DummyExchangeRateManager([BTCLBCFeed(), USDBTCFeed()], rates)
class FeeFormatTest(unittest.TestCase):

38
tests/unit/stream/test_stream_manager.py
View file

@ -5,7 +5,7 @@ import asyncio
import time
from tests.unit.blob_exchange.test_transfer_blob import BlobExchangeTestBase
from tests.unit.lbrynet_daemon.test_ExchangeRateManager import get_dummy_exchange_rate_manager
from lbrynet.error import InsufficientFundsError, KeyFeeAboveMaxAllowed
from lbrynet.extras.wallet.manager import LbryWalletManager
from lbrynet.stream.stream_manager import StreamManager
from lbrynet.stream.descriptor import StreamDescriptor
@ -26,7 +26,7 @@ def get_mock_node(peer):
return mock_node
def get_mock_wallet(sd_hash, storage):
def get_mock_wallet(sd_hash, storage, balance=10.0, fee=None):
claim = {
"address": "bYFeMtSL7ARuG1iMpjFyrnTe4oJHSAVNXF",
"amount": "0.1",
@ -69,6 +69,8 @@ def get_mock_wallet(sd_hash, storage):
"version": "_0_0_1"
}
}
if fee:
claim['value']['stream']['metadata']['fee'] = fee
claim_dict = ClaimDict.load_dict(claim['value'])
claim['hex'] = binascii.hexlify(claim_dict.serialized).decode()
@ -80,6 +82,11 @@ def get_mock_wallet(sd_hash, storage):
mock_wallet = mock.Mock(spec=LbryWalletManager)
mock_wallet.resolve = mock_resolve
async def get_balance(*_):
return balance
mock_wallet.default_account.get_balance = get_balance
return mock_wallet, claim['permanent_url']
@ -91,12 +98,15 @@ class TestStreamManager(BlobExchangeTestBase):
f.write(os.urandom(20000000))
descriptor = await StreamDescriptor.create_stream(self.loop, self.server_blob_manager.blob_dir, file_path)
self.sd_hash = descriptor.calculate_sd_hash()
self.mock_wallet, self.uri = get_mock_wallet(self.sd_hash, self.client_storage)
async def setup_stream_manager(self, balance=10.0, fee=None):
self.mock_wallet, self.uri = get_mock_wallet(self.sd_hash, self.client_storage, balance, fee)
self.stream_manager = StreamManager(self.loop, self.client_config, self.client_blob_manager, self.mock_wallet,
self.client_storage, get_mock_node(self.server_from_client))
self.exchange_rate_manager = get_dummy_exchange_rate_manager(time)
async def test_download_stop_resume_delete(self):
await self.setup_stream_manager()
self.assertSetEqual(self.stream_manager.streams, set())
stream = await self.stream_manager.download_stream_from_uri(self.uri, self.exchange_rate_manager)
stream_hash = stream.stream_hash
@ -137,3 +147,25 @@ class TestStreamManager(BlobExchangeTestBase):
"select status from file where stream_hash=?", stream_hash
)
self.assertEqual(stored_status, None)
async def test_insufficient_funds(self):
fee = {
'currency': 'LBC',
'amount': 11.0,
'address': 'bYFeMtSL7ARuG1iMpjFyrnTe4oJHSAVNXF',
'version': '_0_0_1'
}
await self.setup_stream_manager(10.0, fee)
with self.assertRaises(InsufficientFundsError):
await self.stream_manager.download_stream_from_uri(self.uri, self.exchange_rate_manager)
async def test_fee_above_max_allowed(self):
fee = {
'currency': 'USD',
'amount': 51.0,
'address': 'bYFeMtSL7ARuG1iMpjFyrnTe4oJHSAVNXF',
'version': '_0_0_1'
}
await self.setup_stream_manager(1000000.0, fee)
with self.assertRaises(KeyFeeAboveMaxAllowed):
await self.stream_manager.download_stream_from_uri(self.uri, self.exchange_rate_manager)