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[tools/shoestring]: add 'import-harvesters' command
problem: there is no way to import a harvesters.dat file to a previously deployed node solution: add functionality for inspecting and importing harvester.dat files
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104 changes: 104 additions & 0 deletions
104
tools/shoestring/shoestring/commands/import_harvesters.py
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,104 @@ | ||
| import sys | ||
| from functools import partial | ||
| from pathlib import Path | ||
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| from symbolchain.CryptoTypes import PrivateKey, PublicKey | ||
| from symbolchain.impl.CipherHelpers import decode_aes_gcm, encode_aes_gcm | ||
| from symbolchain.symbol.KeyPair import KeyPair | ||
| from symbolchain.symbol.SharedKey import SharedKey | ||
| from zenlog import log | ||
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| from shoestring.internal.PemUtils import read_private_key_from_private_key_pem_file | ||
| from shoestring.internal.ShoestringConfiguration import parse_shoestring_configuration | ||
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| HARVESTER_ENTRY_PAYLOAD_SIZE = sum([ | ||
| PublicKey.SIZE, # ephemeral public key | ||
| 16, # aes gcm tag | ||
| 12, # aes gcm initialization vector | ||
| 2 * PrivateKey.SIZE, # encrypted harvester signing private key | encrypted harvester vrf private key | ||
| ]) | ||
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| def _private_key_to_address(network, private_key): | ||
| public_key = KeyPair(private_key).public_key | ||
| address = network.public_key_to_address(public_key) | ||
| return address | ||
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| def _visit_harvesters(harvesters_filepath, encryption_key_pair, visit): | ||
| with open(harvesters_filepath, 'rb') as infile: | ||
| for harvester_entry_payload in iter(partial(infile.read, HARVESTER_ENTRY_PAYLOAD_SIZE), b''): | ||
| ephemeral_public_key = PublicKey(harvester_entry_payload[:PublicKey.SIZE]) | ||
| encrypted_payload = harvester_entry_payload[PublicKey.SIZE:] | ||
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| decrypted_payload = decode_aes_gcm(SharedKey, encryption_key_pair, ephemeral_public_key, encrypted_payload) | ||
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| signing_private_key = PrivateKey(decrypted_payload[:PrivateKey.SIZE]) | ||
| vrf_private_key = PrivateKey(decrypted_payload[PrivateKey.SIZE:]) | ||
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| visit(signing_private_key, vrf_private_key) | ||
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| def print_all_harvester_addresses(network, harvesters_filepath, key_pair): | ||
| class ConsolePrinter: | ||
| def __init__(self): | ||
| self.identifier = 1 | ||
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| def print(self, signing_private_key, _vrf_private_key): | ||
| log.info(_private_key_to_address(network, signing_private_key)) | ||
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| self.identifier += 1 | ||
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| log.info(_('import-harvesters-list-header').format(filepath=harvesters_filepath, public_key=key_pair.public_key)) | ||
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| printer = ConsolePrinter() | ||
| _visit_harvesters(harvesters_filepath, key_pair, printer.print) | ||
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| class HarvesterEncrypter: | ||
| def __init__(self, encryption_public_key, outfile): | ||
| self.encryption_public_key = encryption_public_key | ||
| self.outfile = outfile | ||
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| def append(self, signing_private_key, vrf_private_key): | ||
| payload = signing_private_key.bytes + vrf_private_key.bytes | ||
| ephemeral_key_pair = KeyPair(PrivateKey.random()) | ||
| (tag, initialization_vector, encrypted_payload) = encode_aes_gcm(SharedKey, ephemeral_key_pair, self.encryption_public_key, payload) | ||
| self.outfile.write(ephemeral_key_pair.public_key.bytes) | ||
| self.outfile.write(tag) | ||
| self.outfile.write(initialization_vector) | ||
| self.outfile.write(encrypted_payload) | ||
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| def run_main(args): | ||
| if args.in_harvesters == args.out_harvesters: | ||
| log.error(_('import-harvesters-error-in-harvesters-is-equal-to-out-harvesters')) | ||
| sys.exit(1) | ||
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| config = parse_shoestring_configuration(args.config) | ||
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| in_harvesters_key_pair = KeyPair(read_private_key_from_private_key_pem_file(args.in_pem)) | ||
| print_all_harvester_addresses(config.network, args.in_harvesters, in_harvesters_key_pair) | ||
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| if not args.out_harvesters: | ||
| return | ||
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| out_harvesters_filepath = Path(args.out_harvesters) | ||
| with open(out_harvesters_filepath, 'wb') as outfile: | ||
| out_harvesters_key_pair = KeyPair(read_private_key_from_private_key_pem_file(args.out_pem)) | ||
| encrypter = HarvesterEncrypter(out_harvesters_key_pair.public_key, outfile) | ||
| _visit_harvesters(args.in_harvesters, in_harvesters_key_pair, encrypter.append) | ||
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| out_harvesters_filepath.chmod(0o600) | ||
| print_all_harvester_addresses(config.network, out_harvesters_filepath, out_harvesters_key_pair) | ||
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| def add_arguments(parser): | ||
| parser.add_argument('--config', help=_('argument-help-config'), required=True) | ||
| parser.add_argument('--in-harvesters', help=_('argument-help-import-harvesters-in-harvesters'), required=True) | ||
| parser.add_argument('--in-pem', help=_('argument-help-import-harvesters-in-pem'), required=True) | ||
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| parser.add_argument('--out-harvesters', help=_('argument-help-import-harvesters-out-harvesters')) | ||
| parser.add_argument('--out-pem', help=_('argument-help-import-harvesters-out-pem')) | ||
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| parser.set_defaults(func=run_main) |
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