LOGFILE = '/tmp/lightchain-shell.log'
LOGLEVEL = logging.INFO
parser = argparse.ArgumentParser()
parser.add_argument('-db', type=str, required=True)
parser.add_argument('-debug', action='store_true')
args = parser.parse_args()
print("Logging to", LOGFILE)
if args.debug:
LOGLEVEL = logging.DEBUG
logging.basicConfig(level=LOGLEVEL, filename=LOGFILE)
DemoLightChain = LightChain.configure(
name='Demo LightChain',
privkey=ecies.generate_privkey(),
vm_configuration=MAINNET_VM_CONFIGURATION,
network_id=ROPSTEN_NETWORK_ID,
)
chaindb = BaseChainDB(LevelDB(args.db))
try:
chaindb.get_canonical_head()
except CanonicalHeadNotFound:
# We're starting with a fresh DB.
chain = DemoLightChain.from_genesis_header(chaindb, ROPSTEN_GENESIS_HEADER)
else:
# We're reusing an existing db.
chain = DemoLightChain(chaindb)
loop = asyncio.get_event_loop()
t = threading.Thread(target=loop.run_until_complete,
LOGFILE = '/tmp/lightchain-shell.log'
LOGLEVEL = logging.INFO
parser = argparse.ArgumentParser()
parser.add_argument('-db', type=str, required=True)
parser.add_argument('-debug', action='store_true')
args = parser.parse_args()
print("Logging to", LOGFILE)
if args.debug:
LOGLEVEL = logging.DEBUG
logging.basicConfig(level=LOGLEVEL, filename=LOGFILE)
DemoLightChain = LightChain.configure(
name='Demo LightChain',
vm_configuration=MAINNET_VM_CONFIGURATION,
network_id=ROPSTEN_NETWORK_ID,
)
chaindb = ChainDB(LevelDB(args.db))
peer_pool = PeerPool(LESPeer, chaindb, ROPSTEN_NETWORK_ID,
ecies.generate_privkey())
try:
chaindb.get_canonical_head()
except CanonicalHeadNotFound:
# We're starting with a fresh DB.
chain = DemoLightChain.from_genesis_header(chaindb, ROPSTEN_GENESIS_HEADER,
peer_pool)
else:
# We're reusing an existing db.
chain = DemoLightChain(chaindb, peer_pool)
class MockPeerPool:
def __init__(self, *args, **kwargs):
pass
async def run(self):
pass
async def stop(self):
pass
LightChainForTests = LightChain.configure(
'LightChainForTests',
vm_configuration=MAINNET_VM_CONFIGURATION,
network_id=MAINNET_NETWORK_ID,
peer_pool_class=MockPeerPool,
)
def assert_canonical_chains_are_equal(chaindb1, chaindb2, block_number=None):
"""Assert that the canonical chains in both DBs are identical up to block_number."""
if block_number is None:
block_number = chaindb1.get_canonical_head().block_number
assert block_number == chaindb2.get_canonical_head().block_number
for i in range(0, block_number + 1):
assert chaindb1.get_canonical_block_header_by_number(i) == (
chaindb2.get_canonical_block_header_by_number(i))
@pytest.fixture
logging.basicConfig(level=logging.INFO, format='%(levelname)s: %(message)s')
logging.getLogger("evm.p2p.lightchain").setLevel(logging.DEBUG)
parser = argparse.ArgumentParser()
parser.add_argument('-db', type=str, required=True)
parser.add_argument('-mainnet', action="store_true")
args = parser.parse_args()
GENESIS_HEADER = ROPSTEN_GENESIS_HEADER
NETWORK_ID = ROPSTEN_NETWORK_ID
if args.mainnet:
GENESIS_HEADER = MAINNET_GENESIS_HEADER
NETWORK_ID = MAINNET_NETWORK_ID
DemoLightChain = LightChain.configure(
'RPCDemoLightChain',
vm_configuration=MAINNET_VM_CONFIGURATION,
network_id=NETWORK_ID,
privkey=ecies.generate_privkey(),
)
chaindb = ChainDB(LevelDB(args.db))
try:
chaindb.get_canonical_head()
except CanonicalHeadNotFound:
# We're starting with a fresh DB.
chain = DemoLightChain.from_genesis_header(chaindb, GENESIS_HEADER)
else:
# We're reusing an existing db.
chain = DemoLightChain(chaindb)
app = App(chain)
web.run_app(app, port=8080)
from evm.chains.ropsten import ROPSTEN_NETWORK_ID, ROPSTEN_GENESIS_HEADER
from evm.chains.mainnet import MAINNET_VM_CONFIGURATION
from evm.db.backends.memory import MemoryDB
from evm.db.chain import ChainDB
from evm.utils.keccak import keccak
from evm.vm.forks.frontier import FrontierBlock
from evm.p2p import ecies
from evm.p2p.integration_test_helpers import LocalGethPeerPool
from evm.p2p.lightchain import LightChain
from evm.p2p.peer import LESPeer
IntegrationTestLightChain = LightChain.configure(
name='IntegrationTest LightChain',
vm_configuration=MAINNET_VM_CONFIGURATION,
network_id=ROPSTEN_NETWORK_ID,
max_consecutive_timeouts=1,
)
@pytest.mark.asyncio
async def test_lightchain_integration(request, event_loop):
"""Test LightChain against a local geth instance.
This test assumes a geth/ropsten instance is listening on 127.0.0.1:30303 and serving light
clients. In order to achieve that, simply run it with the following command line:
$ geth -nodekeyhex 45a915e4d060149eb4365960e6a7a45f334393093061116b197e3240065ff2d8 \
-testnet -lightserv 90
"""
# TODO: Implement a pytest fixture that runs geth as above, so that we don't need to run it
async def get_nodes_to_connect(self):
nodekey = keys.PrivateKey(
decode_hex(
"45a915e4d060149eb4365960e6a7a45f334393093061116b197e3240065ff2d8"
))
remoteid = nodekey.public_key.to_hex()
return [
kademlia.Node(keys.PublicKey(decode_hex(remoteid)),
kademlia.Address('127.0.0.1', 30303, 30303))
]
IntegrationTestLightChain = LightChain.configure(
name='IntegrationTest LightChain',
privkey=ecies.generate_privkey(),
vm_configuration=MAINNET_VM_CONFIGURATION,
network_id=ROPSTEN_NETWORK_ID,
peer_pool_class=LocalGethPeerPool,
max_consecutive_timeouts=1,
)
@pytest.mark.asyncio
async def test_lightchain_integration(request, event_loop):
"""Test LightChain against a local geth instance.
This test assumes a geth/ropsten instance is listening on 127.0.0.1:30303 and serving light
clients. In order to achieve that, simply run it with the following command line:
$ geth -nodekeyhex 45a915e4d060149eb4365960e6a7a45f334393093061116b197e3240065ff2d8 \
-testnet -lightserv 90
"""
def __init__(self, *args, **kwargs):
pass
def subscribe(self, subscriber):
pass
async def run(self):
pass
async def stop(self):
pass
LightChainForTests = LightChain.configure(
'LightChainForTests',
vm_configuration=MAINNET_VM_CONFIGURATION,
network_id=MAINNET_NETWORK_ID,
)
def assert_canonical_chains_are_equal(chaindb1, chaindb2, block_number=None):
"""Assert that the canonical chains in both DBs are identical up to block_number."""
if block_number is None:
block_number = chaindb1.get_canonical_head().block_number
assert block_number == chaindb2.get_canonical_head().block_number
for i in range(0, block_number + 1):
assert chaindb1.get_canonical_block_header_by_number(i) == (
chaindb2.get_canonical_block_header_by_number(i))
@pytest.fixture
"receiptsRoot": encode_hex(block.header.receipt_root),
"sha3Uncles": encode_hex(block.header.uncles_hash),
"stateRoot": encode_hex(block.header.state_root),
"timestamp": hex(block.header.timestamp),
"totalDifficulty": hex(self.chain.chaindb.get_score(block.hash)),
"transactions": [encode_hex(tx.hash) for tx in block.transactions],
"transactionsRoot": encode_hex(block.header.transaction_root),
"uncles": [encode_hex(uncle.hash) for uncle in block.uncles],
"size": hex(len(rlp.encode(block))),
"miner": encode_hex(block.header.coinbase),
}
DemoLightChain = LightChain.configure(
'RPCDemoLightChain',
vm_configuration=MAINNET_VM_CONFIGURATION,
network_id=NETWORK_ID,
)
if __name__ == '__main__':
import argparse
from evm.db.backends.level import LevelDB
from evm.db.chain import BaseChainDB
from evm.exceptions import CanonicalHeadNotFound
logging.basicConfig(level=logging.INFO,
format='%(levelname)s: %(message)s')
logging.getLogger("evm.p2p.lightchain").setLevel(logging.DEBUG)
parser = argparse.ArgumentParser()
parser.add_argument('-db', type=str, required=True)
args = parser.parse_args()