WIP add erc20 transfer executable

MANIFEST.in

@@ -0,0 +1 @@
+include requirements.txt

cic_tools/eth/connection.py

@@ -6,7 +6,7 @@ from urllib.request import (
         )
 
 from .error import DefaultErrorParser
-from .method import jsonrpc_result
+from .rpc import jsonrpc_result
 
 error_parser = DefaultErrorParser()
 logg = logging.getLogger(__name__)

cic_tools/eth/constant.py

@@ -1,3 +1,4 @@
 ZERO_ADDRESS = '0x{:040x}'.format(0)
 ZERO_CONTENT = '0x{:064x}'.format(0)
 MINIMUM_FEE_UNITS = 21000
+MINIMUM_FEE_PRICE = 1000000000

cic_tools/eth/erc20.py

@@ -0,0 +1,69 @@
+# third-party imports
+import sha3
+from hexathon import add_0x
+from eth_abi import encode_single
+
+# local imports
+from .hash import keccak256_string_to_hex
+from .constant import ZERO_ADDRESS
+from .rpc import jsonrpc_template
+from .tx import TxFactory
+        
+
+# TODO: move to cic-contracts
+erc20_balance_signature = keccak256_string_to_hex('balanceOf(address)')[:8]
+erc20_decimals_signature = keccak256_string_to_hex('decimals()')[:8]
+erc20_transfer_signature = keccak256_string_to_hex('transfer(address,uint256')[:8]
+
+
+class ERC20TxFactory(TxFactory):
+
+    def build(self, tx):
+        txe = EIP155Transaction(tx, tx['nonce'], tx['chainId'])
+        self.signer.signTransaction(txe)
+        tx_raw = txe.rlp_serialize()
+        tx_raw_hex = add_0x(tx_raw.hex())
+        tx_hash_hex = add_0x(keccak256_hex_to_hex(tx_raw_hex))
+
+        o = jsonrpc_template()
+        o['method'] = 'eth_sendRawTransaction'
+        o['params'].append(tx_raw_hex)
+
+        return (tx_hash_hex, o)
+
+
+    def erc20_balance(self, contract_address, address, sender_address=ZERO_ADDRESS):
+        o = jsonrpc_template()
+        o['method'] = 'eth_call'
+        data = erc20_balance_signature
+        data += encode_single('address', address).hex()
+        data = add_0x(data)
+        tx = self.template(sender_address, contract_address)
+        tx = self.set_code(tx, data)
+        o['params'].append(self.normalize(tx))
+        o['params'].append('latest')
+        return o
+
+
+    def erc20_decimals(self, contract_address, sender_address=ZERO_ADDRESS):
+        o = jsonrpc_template()
+        o['method'] = 'eth_call'
+        data = add_0x(erc20_decimals_signature)
+        tx = self.template(sender_address, contract_address)
+        tx = self.set_code(tx, data, update_fee=False)
+        o['params'].append(self.normalize(tx))
+        o['params'].append('latest')
+        return o
+
+
+    def erc20_transfer(self, contract_address, sender_address, value):
+        o = jsonrpc_template()
+        o['method'] = 'eth_sendRawTransaction'
+        data = erc20_transfer_signature
+        data += encode_single('address', sender_address).hex()
+        data += encode_single('uint256', value).hex()
+        data = add_0x(data)
+        tx = self.template(sender_address, contract_address)
+        tx = self.set_code(tx, data)
+        o['params'].append(tx)
+        return self.build(o)

cic_tools/eth/gas.py

@@ -6,9 +6,7 @@ from hexathon import (
 from crypto_dev_signer.eth.transaction import EIP155Transaction
 
 # local imports
-from cic_tools.eth.method import (
-        jsonrpc_template,
-        )
+from cic_tools.eth.rpc import jsonrpc_template
 from cic_tools.eth.tx import TxFactory
 from cic_tools.eth.hash import keccak256_hex_to_hex
 

cic_tools/eth/method.py

@@ -1,61 +0,0 @@
-import sha3
-import uuid
-
-from hexathon import add_0x
-from eth_abi import encode_single
-
-from .hash import keccak256_string_to_hex
-from .constant import ZERO_ADDRESS
-
-
-# TODO: move to cic-contracts
-erc20_balance_signature = keccak256_string_to_hex('balanceOf(address)')[:8]
-erc20_decimals_signature = keccak256_string_to_hex('decimals()')[:8]
-
-
-def jsonrpc_template():
-    return {
-        'jsonrpc': '2.0',
-        'id': str(uuid.uuid4()),
-        'method': None,
-        'params': [],
-            }
-
-
-def erc20_balance(contract_address, address, sender_address=ZERO_ADDRESS):
-    o = jsonrpc_template()
-    o['method'] = 'eth_call'
-    data = erc20_balance_signature
-    data += encode_single('address', address).hex()
-    data = add_0x(data)
-    a = call(contract_address, data=data)
-    o['params'].append(a)
-    o['params'].append('latest')
-    return o
-
-
-def erc20_decimals(contract_address, sender_address=ZERO_ADDRESS):
-    o = jsonrpc_template()
-    o['method'] = 'eth_call'
-    arg = add_0x(erc20_decimals_signature)
-    #o['params'].append(arg)
-    a = call(contract_address, arg)
-    o['params'].append(a)
-    o['params'].append('latest')
-    return o
-
-
-def call(contract_address, data, sender_address=ZERO_ADDRESS):
-    return {
-        'from': sender_address,
-        'to': contract_address,
-        'data': data,
-            }
-
-
-def jsonrpc_result(o, ep):
-    if o.get('error') != None:
-        raise ep.translate(o)
-    return o['result']
-
-

cic_tools/eth/nonce.py

@@ -5,9 +5,7 @@ from hexathon import (
         )
 
 # local imports
-from cic_tools.eth.method import (
-        jsonrpc_template,
-        )
+from cic_tools.eth.rpc import jsonrpc_template
 
 
 def nonce(address):

cic_tools/eth/rpc.py

@@ -0,0 +1,17 @@
+# standard imports
+import uuid
+
+
+def jsonrpc_template():
+    return {
+        'jsonrpc': '2.0',
+        'id': str(uuid.uuid4()),
+        'method': None,
+        'params': [],
+            }
+
+
+def jsonrpc_result(o, ep):
+    if o.get('error') != None:
+        raise ep.translate(o)
+    return o['result']

cic_tools/eth/runnable/balance.py

@@ -26,14 +26,14 @@ from eth_abi import encode_single
 
 # local imports
 from cic_tools.eth.address import to_checksum
-from cic_tools.eth.method import (
+from cic_tools.eth.rpc import (
         jsonrpc_template,
-        erc20_balance,
-        erc20_decimals,
         jsonrpc_result,
         )
+from cic_tools.eth.erc20 import ERC20TxFactory
 from cic_tools.eth.connection import HTTPConnection
-
+from cic_tools.eth.nonce import DefaultNonceOracle
+from cic_tools.eth.gas import DefaultGasOracle
 
 logging.basicConfig(level=logging.WARNING)
 logg = logging.getLogger()
@@ -55,6 +55,8 @@ if args.v:
     logg.setLevel(logging.DEBUG)
 
 conn = HTTPConnection(args.p)
+gas_oracle = DefaultGasOracle(conn)
+
 
 def main():
     account = to_checksum(args.account)
@@ -64,13 +66,14 @@ def main():
     r = None
     decimals = 18
     if args.t != None:
+        g = ERC20TxFactory()
         # determine decimals
-        decimals_o = erc20_decimals(args.t)
+        decimals_o = g.erc20_decimals(args.t)
         r = conn.do(decimals_o)
         decimals = int(strip_0x(r), 16)
 
         # get balance
-        balance_o = erc20_balance(args.t, account)
+        balance_o = g.erc20_balance(args.t, account)
         r = conn.do(balance_o)
 
     else:

cic_tools/eth/runnable/gas.py

@@ -19,7 +19,6 @@ import logging
 # third-party imports
 from crypto_dev_signer.eth.signer import ReferenceSigner as EIP155Signer
 from crypto_dev_signer.keystore import DictKeystore
-from crypto_dev_signer.eth.helper import EthTxExecutor
 from hexathon import (
         add_0x,
         strip_0x,
@@ -28,9 +27,7 @@ from hexathon import (
 # local imports
 from cic_tools.eth.address import to_checksum
 from cic_tools.eth.connection import HTTPConnection
-from cic_tools.eth.method import (
-        jsonrpc_template,
-        )
+from cic_tools.eth.rpc import jsonrpc_template
 from cic_tools.eth.nonce import DefaultNonceOracle
 from cic_tools.eth.gas import (
         DefaultGasOracle,
@@ -52,8 +49,8 @@ argparser.add_argument('-ww', action='store_true', help='Wait for every transact
 argparser.add_argument('-i', '--chain-spec', dest='i', type=str, default='Ethereum:1', help='Chain specification string')
 argparser.add_argument('-a', '--signer-address', dest='a', type=str, help='Signing address')
 argparser.add_argument('-y', '--key-file', dest='y', type=str, help='Ethereum keystore file to use for signing')
-argparser.add_argument('-v', action='store_true', help='Be verbose')
 argparser.add_argument('-u', '--unsafe', dest='u', action='store_true', help='Auto-convert address to checksum adddress')
+argparser.add_argument('-v', action='store_true', help='Be verbose')
 argparser.add_argument('-vv', action='store_true', help='Be more verbose')
 argparser.add_argument('recipient', type=str, help='Ethereum address of recipient')
 argparser.add_argument('amount', type=int, help='Amount of tokens to mint and gift')
@@ -101,10 +98,14 @@ def main():
     logg.debug('sender {} balance before: {}'.format(signer_address, balance(signer_address)))
     logg.debug('recipient {} balance before: {}'.format(recipient, balance(recipient)))
  
-    g = GasTxFactory(signer, gas_oracle, nonce_oracle, chain_id=chain_id)
+    g = GasTxFactory(signer=signer, gas_oracle=gas_oracle, nonce_oracle=nonce_oracle, chain_id=chain_id)
     (tx_hash_hex, o) = g.create(signer_address, recipient, value)
     conn.do(o)
 
+    logg.debug('sender {} balance after: {}'.format(signer_address, balance(signer_address)))
+    logg.debug('recipient {} balance after: {}'.format(recipient, balance(recipient)))
+ 
+
     print(tx_hash_hex)
 
 

cic_tools/eth/runnable/transfer.py

@@ -0,0 +1,113 @@
+#!python3
+
+"""Token transfer script
+
+.. moduleauthor:: Louis Holbrook <dev@holbrook.no>
+.. pgp:: 0826EDA1702D1E87C6E2875121D2E7BB88C2A746 
+
+"""
+
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+# standard imports
+import os
+import json
+import argparse
+import logging
+
+# third-party imports
+from crypto_dev_signer.eth.signer import ReferenceSigner as EIP155Signer
+from crypto_dev_signer.keystore import DictKeystore
+from crypto_dev_signer.eth.helper import EthTxExecutor
+from hexathon import (
+        add_0x,
+        strip_0x,
+        )
+
+# local imports
+from cic_tools.eth.address import to_checksum
+from cic_tools.eth.connection import HTTPConnection
+from cic_tools.eth.rpc import jsonrpc_template
+from cic_tools.eth.nonce import DefaultNonceOracle
+from cic_tools.eth.gas import DefaultGasOracle
+from cic_tools.eth.erc20 import ERC20TxFactory
+
+
+logging.basicConfig(level=logging.WARNING)
+logg = logging.getLogger()
+
+logging.getLogger('web3').setLevel(logging.WARNING)
+logging.getLogger('urllib3').setLevel(logging.WARNING)
+
+default_abi_dir = '/usr/local/share/cic/solidity/abi'
+argparser = argparse.ArgumentParser()
+argparser.add_argument('-p', '--provider', dest='p', default='http://localhost:8545', type=str, help='Web3 provider url (http only)')
+argparser.add_argument('-w', action='store_true', help='Wait for the last transaction to be confirmed')
+argparser.add_argument('-ww', action='store_true', help='Wait for every transaction to be confirmed')
+argparser.add_argument('-i', '--chain-spec', dest='i', type=str, default='Ethereum:1', help='Chain specification string')
+argparser.add_argument('--token-address', required='True', dest='t', type=str, help='Token address')
+argparser.add_argument('-a', '--sender-address', dest='s', type=str, help='Sender account address')
+argparser.add_argument('-y', '--key-file', dest='y', type=str, help='Ethereum keystore file to use for signing')
+argparser.add_argument('--abi-dir', dest='abi_dir', type=str, default=default_abi_dir, help='Directory containing bytecode and abi (default {})'.format(default_abi_dir))
+argparser.add_argument('-u', '--unsafe', dest='u', action='store_true', help='Auto-convert address to checksum adddress')
+argparser.add_argument('-v', action='store_true', help='Be verbose')
+argparser.add_argument('-vv', action='store_true', help='Be more verbose')
+argparser.add_argument('recipient', type=str, help='Recipient account address')
+argparser.add_argument('amount', type=int, help='Amount of tokens to mint and gift')
+args = argparser.parse_args()
+
+
+if args.vv:
+    logg.setLevel(logging.DEBUG)
+elif args.v:
+    logg.setLevel(logging.INFO)
+
+block_last = args.w
+block_all = args.ww
+
+signer_address = None
+keystore = DictKeystore()
+if args.y != None:
+    logg.debug('loading keystore file {}'.format(args.y))
+    signer_address = keystore.import_keystore_file(args.y)
+    logg.debug('now have key for signer address {}'.format(signer_address))
+signer = EIP155Signer(keystore)
+
+conn = HTTPConnection(args.p)
+nonce_oracle = DefaultNonceOracle(signer_address, conn)
+gas_oracle = DefaultGasOracle(conn)
+
+chain_pair = args.i.split(':')
+chain_id = int(chain_pair[1])
+#g = ERC20TxFactory(signer=signer, gas_oracle=gas_oracle, nonce_oracle=nonce_oracle, chain_id=chain_id)
+g = ERC20TxFactory()
+
+def balance(token_address, address):
+    o = g.erc20_balance(token_address, address)
+    r = conn.do(o)
+    hx = strip_0x(r)
+    return int(hx, 16)
+
+
+def main():
+    recipient = args.recipient
+    if not args.u and recipient != add_0x(args.recipient):
+        raise ValueError('invalid checksum address')
+
+    value = args.amount
+
+    logg.debug('sender {} balance before: {}'.format(signer_address, balance(args.t, signer_address)))
+    logg.debug('recipient {} balance before: {}'.format(recipient, balance(args.t, recipient)))
+
+    logg.debug('sender {} balance after: {}'.format(signer_address, balance(args.t, signer_address)))
+    logg.debug('recipient {} balance after: {}'.format(recipient, balance(args.t, recipient)))
+
+
+    if block_last:
+        helper.wait_for()
+
+    print(tx_hash)
+
+
+if __name__ == '__main__':
+    main()

cic_tools/eth/tx.py

@@ -7,10 +7,14 @@ from eth_keys import KeyAPI
 from eth_keys.backends import NativeECCBackend
 from rlp import decode as rlp_decode
 from rlp import encode as rlp_encode
+from crypto_dev_signer.eth.transaction import EIP155Transaction
 
 # local imports
 from .address import to_checksum
-from .constant import MINIMUM_FEE_UNITS
+from .constant import (
+        MINIMUM_FEE_UNITS,
+        MINIMUM_FEE_PRICE,
+        )
 
 logg = logging.getLogger(__name__)
 
@@ -84,7 +88,7 @@ def unpack_signed(tx_raw_bytes, chain_id=1):
 
 class TxFactory:
 
-    def __init__(self, signer, gas_oracle, nonce_oracle, chain_id=1):
+    def __init__(self, signer=None, gas_oracle=None, nonce_oracle=None, chain_id=1):
         self.gas_oracle = gas_oracle
         self.nonce_oracle = nonce_oracle
         self.chain_id = chain_id
@@ -92,8 +96,12 @@ class TxFactory:
 
 
     def template(self, sender, recipient):
+        gas_price = MINIMUM_FEE_PRICE
+        if self.gas_oracle != None:
             gas_price = self.gas_oracle.get()
         logg.debug('using gas price {}'.format(gas_price))
+        nonce = 0
+        if self.nonce_oracle != None:
             nonce = self.nonce_oracle.next()
         logg.debug('using nonce {} for address {}'.format(nonce, sender))
         return {
@@ -106,3 +114,24 @@ class TxFactory:
                 'gas': MINIMUM_FEE_UNITS,
                 'chainId': self.chain_id,
                 }
+
+
+    def normalize(self, tx):
+        txe = EIP155Transaction(tx, tx['nonce'], tx['chainId'])
+        txes = txe.serialize()
+        print(txes)
+        return {
+            'from': tx['from'],
+            'to': txes['to'],
+            'gasPrice': txes['gasPrice'],
+            'gas': txes['gas'],
+            'data': txes['data'],
+                }
+
+
+    def set_code(self, tx, data, update_fee=True):
+        tx['data'] = data
+        if update_fee:
+            logg.debug('using hardcoded gas limit of 8000000 until we have reliable vm executor')
+            tx['gas'] = 8000000
+        return tx

requirements.txt

@@ -1,13 +1,13 @@
 cryptocurrency-cli-tools==0.0.4
-giftable-erc20-token==0.0.7b6
-eth-accounts-index==0.0.10a6
-erc20-single-shot-faucet==0.2.0a5
-erc20-approval-escrow==0.3.0a4
-cic-eth==0.10.0a21+build.e4161b3e
+giftable-erc20-token~=0.0.7b7
+eth-accounts-index~=0.0.10a7
+erc20-single-shot-faucet~=0.2.0a6
+erc20-approval-escrow~=0.3.0a5
+cic-eth~=0.10.0a25
 vobject==0.9.6.1
 faker==4.17.1
-eth-address-index==0.1.0a5
-crypto-dev-signer==0.4.13rc2
+eth-address-index~=0.1.0a6
+crypto-dev-signer~=0.4.13rc2
 pysha3==1.0.2
 hexathon==0.0.1a2
 eth-abi==2.1.1