55 lines
1.4 KiB
Python
55 lines
1.4 KiB
Python
# standard imports
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import stat
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import os
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import logging
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# external imports
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from funga.eth.keystore.dict import DictKeystore
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from funga.eth.signer import EIP155Signer
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from chainlib.eth.cli import Rpc
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from chainlib.cli import Wallet
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# local imports
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from cic.keystore import KeystoreDirectory
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logg = logging.getLogger(__name__)
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class EthKeystoreDirectory(DictKeystore, KeystoreDirectory):
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"""Combination of DictKeystore and KeystoreDirectory
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TODO: Move to funga
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"""
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def parse_adapter(config, signer_hint):
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"""Determine and instantiate signer and rpc from configuration.
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If either could not be determined, None is returned.
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:param config: Configuration object implementing the get() method
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:type config: dict, object with get()
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:param signer_hint: Signer resource description (e.g. keystore directory)
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:type signer_hint: str
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:rtype: tuple; chainlib.connection.RPCConnection, funga.signer.Signer
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:return: RPC interface, signer interface
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"""
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keystore = None
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if signer_hint is None:
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logg.info("signer hint missing")
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return None
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st = os.stat(signer_hint)
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if stat.S_ISDIR(st.st_mode):
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logg.debug("signer hint is directory")
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keystore = EthKeystoreDirectory()
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keystore.process_dir(signer_hint)
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w = Wallet(EIP155Signer, keystore=keystore)
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signer = EIP155Signer(keystore)
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rpc = Rpc(wallet=w)
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rpc.connect_by_config(config)
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return (rpc.conn, signer)
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