funga-eth/funga/eth/runnable/msg.py

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# standard imports
import os
import logging
import sys
import json
import argparse
import getpass
# external impors
import coincurve
from hexathon import strip_0x
# local imports
from funga.error import DecryptError
from funga.eth.keystore.dict import DictKeystore
from funga.eth.signer import EIP155Signer
logging.basicConfig(level=logging.WARNING)
logg = logging.getLogger()
argparser = argparse.ArgumentParser()
argparser.add_argument('-f', type=str, help='Keyfile to use for signing')
argparser.add_argument('-z', action='store_true', help='zero-length password')
argparser.add_argument('-v', action='store_true', help='be verbose')
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argparser.add_argument('-0', dest='nonl', action='store_true', help='no newline at end of output')
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argparser.add_argument('msg', type=str, help='Message to sign')
args = argparser.parse_args()
if args.v:
logg.setLevel(logging.DEBUG)
def main():
passphrase = os.environ.get('WALLET_PASSPHRASE', os.environ.get('PASSPHRASE'))
if args.z:
passphrase = ''
if passphrase == None:
passphrase = getpass.getpass('decryption phrase: ')
keystore = DictKeystore()
address = keystore.import_keystore_file(args.f, password=passphrase)
signer = EIP155Signer(keystore)
sig = signer.sign_ethereum_message(address, args.msg.encode('utf-8').hex(), password=passphrase)
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r = sig.hex()
if not args.nonl:
r += "\n"
sys.stdout.write(r)
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if __name__ == '__main__':
main()