eth-cache/eth_cache/runnable/get.py

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2021-06-14 09:27:10 +02:00
# SPDX-License-Identifier: GPL-3.0-or-later
# standard imports
import sys
import os
import argparse
import logging
import select
# external imports
from chainlib.chain import ChainSpec
from chainlib.eth.connection import EthHTTPConnection
from chainlib.eth.tx import (
pack,
receipt,
transaction,
Tx,
)
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from chainlib.eth.block import (
Block,
block_by_hash,
)
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from hexathon import strip_0x
# local imports
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from eth_cache.store import (
PointerHexDir,
TxFileStore,
)
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logging.basicConfig(level=logging.WARNING)
logg = logging.getLogger()
default_eth_provider = os.environ.get('ETH_PROVIDER', 'http://localhost:8545')
default_data_dir = os.path.realpath(os.path.join(os.environ.get('HOME', ''), '.eth_cache'))
def stdin_arg(t=0):
h = select.select([sys.stdin], [], [], t)
if len(h[0]) > 0:
v = h[0][0].read()
return v.rstrip()
return None
argparser = argparse.ArgumentParser('eth-get', description='display information about an Ethereum address or transaction', epilog='address/transaction can be provided as an argument or from standard input')
argparser.add_argument('-p', '--provider', dest='p', default=default_eth_provider, type=str, help='Web3 provider url (http only)')
argparser.add_argument('-i', '--chain-spec', dest='i', type=str, default='evm:ethereum:1', help='Chain specification string')
argparser.add_argument('-v', action='store_true', help='Be verbose')
argparser.add_argument('-vv', action='store_true', help='Be more verbose')
argparser.add_argument('--data-dir', dest='data_dir', type=str, help='Be more verbose')
argparser.add_argument('tx_hash', nargs='?', default=stdin_arg(), type=str, help='Item to get information for (address og transaction)')
args = argparser.parse_args()
if args.vv:
logg.setLevel(logging.DEBUG)
elif args.v:
logg.setLevel(logging.INFO)
tx_hash = args.tx_hash
if tx_hash == None:
tx_hash = stdin_arg(t=None)
if tx_hash == None:
argparser.error('need first positional argument or value from stdin')
chain_spec = ChainSpec.from_chain_str(args.i)
data_dir = args.data_dir
if data_dir == None:
data_dir = os.path.join(default_data_dir, str(chain_spec))
rpc_provider = args.p
if __name__ == '__main__':
rpc = EthHTTPConnection(rpc_provider)
o = transaction(tx_hash)
r = rpc.do(o)
tx = Tx(r)
tx_raw = pack(tx.src, chain_spec)
o = receipt(tx_hash)
r = rpc.do(o)
tx.apply_receipt(r)
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rcpt = Tx.src_normalize(r)
o = block_by_hash(rcpt['block_hash'])
r = rpc.do(o)
block = Block(r)
tx.apply_block(block)
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store_backend = PointerHexDir(data_dir, 32)
store_backend.register_pointer('address')
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store = TxFileStore(chain_spec, store_backend)
#store_backend.add(bytes.fromhex(strip_0x(tx_hash)), tx_raw)
store.put(block, tx, [])