Merge pull request #38 from MaxMustermann2/chain-id-signing-fix

fix(signing): drop shard ids from serializer

pyhmy/__init__.py

@@ -4,7 +4,7 @@
 import sys
 import warnings
 
-__version__ = "0.1.0"
+__version__ = "0.1.1"
 
 if sys.version_info.major < 3:
     warnings.simplefilter( "always", DeprecationWarning )

pyhmy/signing.py

@@ -44,6 +44,7 @@ class UnsignedHarmonyTxData( HashableRLP ):
     Includes `shardID` and `toShardID`
     as the difference against Eth
     """
+
     fields = (
         ( "nonce",
           big_endian_int ),
@@ -71,6 +72,7 @@ class SignedHarmonyTxData( HashableRLP ):
     Includes `shardID` and `toShardID`
     as the difference against Eth
     """
+
     fields = UnsignedHarmonyTxData._meta.fields + (
         ("v", big_endian_int),  # Recovery value + 27
         ("r", big_endian_int),  # First 32 bytes
@@ -107,8 +109,12 @@ def encode_transaction( unsigned_transaction, vrs ):
 
 def serialize_transaction( filled_transaction ):
     """serialize a signed/unsigned transaction."""
+    # although this will always be present for this module
+    # keep this check anyway
     if "v" in filled_transaction:
-        if "shardID" in filled_transaction:
+        # https://github.com/harmony-one/harmony/blob/f8879f5e0288157bf95ae2898a9a27f0c85ff9ad/core/types/transaction_signing.go#L173
+        if "shardID" in filled_transaction and filled_transaction[
+            "v" ] < 1666600000:
             serializer = SignedHarmonyTxData
         else:
             serializer = SignedEthereumTxData
@@ -132,10 +138,9 @@ def serialize_transaction( filled_transaction ):
 def sanitize_transaction( transaction_dict, private_key ):
     """remove the originating address from the dict and convert chainId to
     int."""
-    account = Account.from_key( # pylint: disable=no-value-for-parameter
-        private_key
-    )
-    sanitized_transaction = transaction_dict.copy(
+    account = Account.from_key( private_key )  # pylint: disable=no-value-for-parameter
+    sanitized_transaction = (
+        transaction_dict.copy()
     )  # do not alter the original dictionary
     if "from" in sanitized_transaction:
         sanitized_transaction[ "from" ] = convert_one_to_hex(
@@ -227,12 +232,12 @@ def sign_transaction( transaction_dict, private_key ) -> SignedTransaction:
         chain_id = None
     else:
         chain_id = unsigned_transaction.v
-    ( v, # pylint: disable=invalid-name
+    (
+        v,  # pylint: disable=invalid-name
         r,  # pylint: disable=invalid-name
-      s ) = sign_transaction_hash( # pylint: disable=invalid-name
-          account._key_obj,
-          transaction_hash,
-          chain_id
+        s,  # pylint: disable=invalid-name
+    ) = sign_transaction_hash(
+        account._key_obj, transaction_hash, chain_id
     )
     encoded_transaction = encode_transaction(
         unsigned_transaction,

pyproject.toml

@@ -6,7 +6,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "pyhmy"
-version = "0.1.0"
+version = "0.1.1"
 description = "A library for interacting and working the Harmony blockchain and related codebases"
 readme = "README.md"
 license = { text = "MIT" }
@@ -26,7 +26,7 @@ requires-python = ">=3.0"
 dev = [ "black", "autopep8", "yapf", "twine", "build", "docformatter", "bumpver" ]
 
 [tool.bumpver]
-current_version = "0.1.0"
+current_version = "0.1.1"
 version_pattern = "MAJOR.MINOR.PATCH"
 commit_message = "chore: bump version {old_version} -> {new_version}"
 # git commit --amend -S

tests/sdk-pyhmy/test_signing.py

@@ -98,3 +98,23 @@ def test_hmy_transaction():
         signed_tx.rawTransaction.hex() ==
         "0xf85f02016480019414791697260e4c9a71f18484c9f997b308e59325058026a02a203357ca6d7cdec981ad3d3692ad2c9e24536a9b6e7b486ce2f94f28c7563ea010d38cd0312a153af0aa7d8cd986040c36118bba373cb94e3e86fd4aedce904d"
     )
+
+def test_hmy_eth_compatible_transaction():
+    transaction_dict = {
+        "chainId": 1666600000,
+        "gas": 21000,
+        "gasPrice": 100000000000,
+        "nonce": 0,
+        "shardID": 0,
+        "to": "0x19e7e376e7c213b7e7e7e46cc70a5dd086daff2a",
+        "toShardID": 1,
+        "value": 1000000000000000000
+    }
+    signed_tx = signing.sign_transaction(
+        transaction_dict,
+        "0x1111111111111111111111111111111111111111111111111111111111111111",
+    )
+    assert (
+        signed_tx.rawTransaction.hex() ==
+        "0xf8728085174876e80082520880019419e7e376e7c213b7e7e7e46cc70a5dd086daff2a880de0b6b3a76400008084c6ac98a3a0322cca082c3ca0a1d9ad5fffb4dc0e09ade49b4b0e3b0c9dfa5f6288bc7363d6a05604874964abaaf364e8b10108e8bfed5561c341aa5e4abb92b2c6f4c009ef4c"
+    )