erc20-faucet

ERC20 token faucet
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gift.py (2631B)

      1 """Set identifier value on contract registry
      2 
      3 .. moduleauthor:: Louis Holbrook <dev@holbrook.no>
      4 .. pgp:: 0826EDA1702D1E87C6E2875121D2E7BB88C2A746 
      5 
      6 """
      7 
      8 # standard imports
      9 import sys
     10 import os
     11 import json
     12 import argparse
     13 import logging
     14 
     15 # external imports
     16 import chainlib.eth.cli
     17 from chainlib.chain import ChainSpec
     18 from chainlib.eth.connection import EthHTTPConnection
     19 from chainlib.eth.tx import receipt
     20 from chainlib.eth.constant import ZERO_CONTENT
     21 from chainlib.eth.address import to_checksum_address
     22 from hexathon import (
     23         add_0x,
     24         strip_0x,
     25         )
     26 
     27 # local imports
     28 from erc20_faucet import Faucet
     29 from erc20_faucet.faucet import SingleShotFaucet
     30 
     31 logging.basicConfig(level=logging.WARNING)
     32 logg = logging.getLogger()
     33 
     34 arg_flags = chainlib.eth.cli.argflag_std_write | chainlib.eth.cli.Flag.EXEC
     35 argparser = chainlib.eth.cli.ArgumentParser(arg_flags)
     36 argparser.add_positional('address', type=str, help='Contract address to invoke faucet for')
     37 args = argparser.parse_args()
     38 
     39 extra_args = {
     40     'address': None,
     41         }
     42 config = chainlib.eth.cli.Config.from_args(args, arg_flags, extra_args=extra_args, default_fee_limit=SingleShotFaucet.gas())
     43 
     44 wallet = chainlib.eth.cli.Wallet()
     45 wallet.from_config(config)
     46 
     47 rpc = chainlib.eth.cli.Rpc(wallet=wallet)
     48 conn = rpc.connect_by_config(config)
     49 
     50 chain_spec = ChainSpec.from_chain_str(config.get('CHAIN_SPEC'))
     51    
     52 
     53 def main():
     54 
     55     signer = rpc.get_signer()
     56     signer_address = rpc.get_sender_address()
     57 
     58     gas_oracle = rpc.get_gas_oracle()
     59     nonce_oracle = rpc.get_nonce_oracle()
     60 
     61     c = Faucet(chain_spec, signer=signer, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle)
     62 
     63     faucet_address = to_checksum_address(config.get('_EXEC_ADDRESS'))
     64     if not config.true('_UNSAFE') and faucet_address != add_0x(config.get('_EXEC_ADDRESS')):
     65         raise ValueError('invalid checksum address for faucet')
     66 
     67     address = config.get('_ADDRESS')
     68     if address == None:
     69         address = signer_address
     70     else:
     71         address = to_checksum_address(address)
     72     if not config.true('_UNSAFE') and address != add_0x(config.get('_EXEC_ADDRESS')):
     73         raise ValueError('invalid checksum address for faucet')
     74 
     75     (tx_hash_hex, o) = c.give_to(faucet_address, signer_address, address)
     76 
     77     if config.get('_RPC_SEND'):
     78         conn.do(o)
     79         if config.get('_WAIT'):
     80             r = conn.wait(tx_hash_hex)
     81             if r['status'] == 0:
     82                 sys.stderr.write('EVM revert while deploying contract. Wish I had more to tell you')
     83                 sys.exit(1)
     84 
     85         print(tx_hash_hex)
     86     else:
     87         print(o)
     88 
     89 
     90 if __name__ == '__main__':
     91     main()