cic-stack/apps/contract-migration/scripts/verify.py

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2021-02-21 16:41:37 +01:00
# standard imports
import os
import sys
import logging
import time
import argparse
import sys
import re
import hashlib
import csv
import json
import urllib
# external imports
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import celery
import eth_abi
import confini
from hexathon import (
strip_0x,
add_0x,
)
from chainsyncer.backend import MemBackend
from chainsyncer.driver import HeadSyncer
from chainlib.chain import ChainSpec
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from chainlib.eth.connection import HTTPConnection
from chainlib.eth.constant import ZERO_ADDRESS
from chainlib.eth.block import (
block_latest,
block_by_number,
Block,
)
from chainlib.eth.hash import keccak256_string_to_hex
from chainlib.eth.address import to_checksum
from chainlib.eth.erc20 import ERC20TxFactory
from chainlib.eth.gas import DefaultGasOracle
from chainlib.eth.nonce import DefaultNonceOracle
from chainlib.eth.tx import TxFactory
from chainlib.eth.rpc import jsonrpc_template
from chainlib.eth.error import EthException
from crypto_dev_signer.eth.signer import ReferenceSigner as EIP155Signer
from crypto_dev_signer.keystore import DictKeystore
from cic_eth.api.api_admin import AdminApi
from cic_types.models.person import (
Person,
generate_metadata_pointer,
)
logging.basicConfig(level=logging.WARNING)
logg = logging.getLogger()
config_dir = '/usr/local/etc/cic-syncer'
argparser = argparse.ArgumentParser(description='daemon that monitors transactions in new blocks')
argparser.add_argument('-p', '--provider', dest='p', type=str, help='chain rpc provider address')
argparser.add_argument('-c', type=str, default=config_dir, help='config root to use')
argparser.add_argument('--old-chain-spec', type=str, dest='old_chain_spec', default='evm:oldchain:1', help='chain spec')
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argparser.add_argument('-i', '--chain-spec', type=str, dest='i', help='chain spec')
argparser.add_argument('--meta-provider', type=str, dest='meta_provider', default='http://localhost:63380', help='cic-meta url')
argparser.add_argument('-r', '--registry-address', type=str, dest='r', help='CIC Registry address')
argparser.add_argument('--env-prefix', default=os.environ.get('CONFINI_ENV_PREFIX'), dest='env_prefix', type=str, help='environment prefix for variables to overwrite configuration')
argparser.add_argument('-v', help='be verbose', action='store_true')
argparser.add_argument('-vv', help='be more verbose', action='store_true')
argparser.add_argument('user_dir', type=str, help='user export directory')
args = argparser.parse_args(sys.argv[1:])
if args.v == True:
logging.getLogger().setLevel(logging.INFO)
elif args.vv == True:
logging.getLogger().setLevel(logging.DEBUG)
config_dir = os.path.join(args.c)
os.makedirs(config_dir, 0o777, True)
config = confini.Config(config_dir, args.env_prefix)
config.process()
# override args
args_override = {
'CIC_CHAIN_SPEC': getattr(args, 'i'),
'ETH_PROVIDER': getattr(args, 'p'),
'CIC_REGISTRY_ADDRESS': getattr(args, 'r'),
}
config.dict_override(args_override, 'cli flag')
config.censor('PASSWORD', 'DATABASE')
config.censor('PASSWORD', 'SSL')
logg.debug('config loaded from {}:\n{}'.format(config_dir, config))
celery_app = celery.Celery(backend=config.get('CELERY_RESULT_URL'), broker=config.get('CELERY_BROKER_URL'))
chain_spec = ChainSpec.from_chain_str(config.get('CIC_CHAIN_SPEC'))
chain_str = str(chain_spec)
old_chain_spec = ChainSpec.from_chain_str(args.old_chain_spec)
old_chain_str = str(old_chain_spec)
user_dir = args.user_dir # user_out_dir from import_users.py
meta_url = args.meta_provider
class VerifierError(Exception):
def __init__(self, e, c):
super(VerifierError, self).__init__(e)
self.c = c
def __str__(self):
super_error = super(VerifierError, self).__str__()
return '[{}] {}'.format(self.c, super_error)
class Verifier:
def __init__(self, conn, cic_eth_api, gas_oracle, chain_spec, index_address, token_address, data_dir):
self.conn = conn
self.gas_oracle = gas_oracle
self.chain_spec = chain_spec
self.index_address = index_address
self.token_address = token_address
self.erc20_tx_factory = ERC20TxFactory(chain_id=chain_spec.chain_id(), gas_oracle=gas_oracle)
self.tx_factory = TxFactory(chain_id=chain_spec.chain_id(), gas_oracle=gas_oracle)
self.api = cic_eth_api
self.data_dir = data_dir
def verify_accounts_index(self, address):
tx = self.tx_factory.template(ZERO_ADDRESS, self.index_address)
data = keccak256_string_to_hex('have(address)')[:8]
data += eth_abi.encode_single('address', address).hex()
tx = self.tx_factory.set_code(tx, data)
tx = self.tx_factory.normalize(tx)
o = jsonrpc_template()
o['method'] = 'eth_call'
o['params'].append(tx)
r = self.conn.do(o)
logg.debug('index check for {}: {}'.format(address, r))
n = eth_abi.decode_single('uint256', bytes.fromhex(strip_0x(r)))
if n != 1:
raise VerifierError(n, 'accounts index')
def verify_balance(self, address, balance):
o = self.erc20_tx_factory.erc20_balance(self.token_address, address)
r = self.conn.do(o)
actual_balance = int(strip_0x(r), 16)
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balance = int(balance / 1000000) * 1000000
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logg.debug('balance for {}: {}'.format(address, balance))
if balance != actual_balance:
raise VerifierError((actual_balance, balance), 'balance')
def verify_local_key(self, address):
r = self.api.have_account(address, str(self.chain_spec))
logg.debug('verify local key result {}'.format(r))
if r != address:
raise VerifierError((address, r), 'local key')
def verify_metadata(self, address):
k = generate_metadata_pointer(bytes.fromhex(strip_0x(address)), ':cic.person')
url = os.path.join(meta_url, k)
logg.debug('verify metadata url {}'.format(url))
try:
res = urllib.request.urlopen(url)
except urllib.error.HTTPError as e:
raise VerifierError(
'({}) {}'.format(url, e),
'metadata (person)',
)
b = res.read()
o_retrieved = json.loads(b.decode('utf-8'))
upper_address = strip_0x(address).upper()
f = open(os.path.join(
self.data_dir,
'new',
upper_address[:2],
upper_address[2:4],
upper_address + '.json',
), 'r'
)
o_original = json.load(f)
f.close()
if o_original != o_retrieved:
raise VerifierError(o_retrieved, 'metadata (person)')
def verify(self, address, balance):
logg.debug('verify {} {}'.format(address, balance))
try:
self.verify_local_key(address)
self.verify_accounts_index(address)
self.verify_balance(address, balance)
self.verify_metadata(address)
except VerifierError as e:
logg.critical('verification failed: {}'.format(e))
sys.exit(1)
class MockClient:
w3 = None
def main():
global chain_str, block_offset, user_dir
conn = HTTPConnection(config.get('ETH_PROVIDER'))
gas_oracle = DefaultGasOracle(conn)
# Get Token registry address
txf = TxFactory(signer=None, gas_oracle=gas_oracle, nonce_oracle=None, chain_id=chain_spec.chain_id())
tx = txf.template(ZERO_ADDRESS, config.get('CIC_REGISTRY_ADDRESS'))
registry_addressof_method = keccak256_string_to_hex('addressOf(bytes32)')[:8]
data = add_0x(registry_addressof_method)
data += eth_abi.encode_single('bytes32', b'TokenRegistry').hex()
txf.set_code(tx, data)
o = jsonrpc_template()
o['method'] = 'eth_call'
o['params'].append(txf.normalize(tx))
o['params'].append('latest')
r = conn.do(o)
print('r {}'.format(r))
token_index_address = to_checksum(eth_abi.decode_single('address', bytes.fromhex(strip_0x(r))))
logg.info('found token index address {}'.format(token_index_address))
data = add_0x(registry_addressof_method)
data += eth_abi.encode_single('bytes32', b'AccountRegistry').hex()
txf.set_code(tx, data)
o = jsonrpc_template()
o['method'] = 'eth_call'
o['params'].append(txf.normalize(tx))
o['params'].append('latest')
r = conn.do(o)
account_index_address = to_checksum(eth_abi.decode_single('address', bytes.fromhex(strip_0x(r))))
logg.info('found account index address {}'.format(account_index_address))
# Get Sarafu token address
tx = txf.template(ZERO_ADDRESS, token_index_address)
data = add_0x(registry_addressof_method)
h = hashlib.new('sha256')
h.update(b'SRF')
z = h.digest()
data += eth_abi.encode_single('bytes32', z).hex()
txf.set_code(tx, data)
o = jsonrpc_template()
o['method'] = 'eth_call'
o['params'].append(txf.normalize(tx))
o['params'].append('latest')
r = conn.do(o)
print('r {}'.format(r))
sarafu_token_address = to_checksum(eth_abi.decode_single('address', bytes.fromhex(strip_0x(r))))
logg.info('found token address {}'.format(sarafu_token_address))
balances = {}
f = open('{}/balances.csv'.format(user_dir, 'r'))
i = 0
while True:
l = f.readline()
if l == None:
break
r = l.split(',')
try:
address = to_checksum(r[0])
sys.stdout.write('loading balance {} {}'.format(i, address).ljust(200) + "\r")
except ValueError:
break
balance = int(r[1].rstrip())
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balances[address] = balance
i += 1
f.close()
api = AdminApi(MockClient())
verifier = Verifier(conn, api, gas_oracle, chain_spec, account_index_address, sarafu_token_address, user_dir)
user_new_dir = os.path.join(user_dir, 'new')
for x in os.walk(user_new_dir):
for y in x[2]:
if y[len(y)-5:] != '.json':
continue
filepath = os.path.join(x[0], y)
f = open(filepath, 'r')
try:
o = json.load(f)
except json.decoder.JSONDecodeError as e:
f.close()
logg.error('load error for {}: {}'.format(y, e))
continue
f.close()
u = Person.deserialize(o)
logg.debug('data {}'.format(u.identities['evm']))
subchain_str = '{}:{}'.format(chain_spec.common_name(), chain_spec.network_id())
new_address = u.identities['evm'][subchain_str][0]
subchain_str = '{}:{}'.format(old_chain_spec.common_name(), old_chain_spec.network_id())
old_address = u.identities['evm'][subchain_str][0]
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balance = balances[old_address]
logg.debug('checking {} -> {} = {}'.format(old_address, new_address, balance))
verifier.verify(new_address, balance)
if __name__ == '__main__':
main()