Geth support for inspect

README.md

@@ -45,6 +45,7 @@ Example:
 export RPC_URL="http://111.111.111.111:8546"
 ```
 
+**Note**: mev-inspect-py currently requires an RPC of a full archive node with support for Erigon traces and receipts. Geth additions have been added to translate geth traces and receipts to Erigon ones and can be accessed using `--geth` flag.
 
 Next, start all services with:
 
@@ -65,6 +66,7 @@ On first startup, you'll need to apply database migrations with:
 ### Inspect a single block
 
 Inspecting block [12914944](https://twitter.com/mevalphaleak/status/1420416437575901185):
+**Note**: Add `--geth` at the end if RPC_URL points to a geth / geth like node.
 
 ```
 ./mev inspect 12914944
@@ -73,6 +75,7 @@ Inspecting block [12914944](https://twitter.com/mevalphaleak/status/142041643757
 ### Inspect many blocks
 
 Inspecting blocks 12914944 to 12914954:
+**Note**: Add `--geth` at the end if RPC_URL points to a geth / geth like node.
 
 ```
 ./mev inspect-many 12914944 12914954

cli.py

@@ -21,12 +21,14 @@ def cli():
 @cli.command()
 @click.argument("block_number", type=int)
 @click.option("--rpc", default=lambda: os.environ.get(RPC_URL_ENV, ""))
+@click.option("--geth/--no-geth", default=False)
 @coro
-async def inspect_block_command(block_number: int, rpc: str):
+async def inspect_block_command(block_number: int, rpc: str, geth: bool):
+    print("geth", geth)
     inspect_db_session = get_inspect_session()
     trace_db_session = get_trace_session()
 
-    inspector = MEVInspector(rpc, inspect_db_session, trace_db_session)
+    inspector = MEVInspector(rpc, inspect_db_session, trace_db_session, geth)
     await inspector.inspect_single_block(block=block_number)
 
 
@@ -38,7 +40,7 @@ async def fetch_block_command(block_number: int, rpc: str):
     inspect_db_session = get_inspect_session()
     trace_db_session = get_trace_session()
 
-    inspector = MEVInspector(rpc, inspect_db_session, trace_db_session)
+    inspector = MEVInspector(rpc, inspect_db_session, trace_db_session, False)
     block = await inspector.create_from_block(block_number=block_number)
     print(block.json())
 
@@ -47,6 +49,7 @@ async def fetch_block_command(block_number: int, rpc: str):
 @click.argument("after_block", type=int)
 @click.argument("before_block", type=int)
 @click.option("--rpc", default=lambda: os.environ.get(RPC_URL_ENV, ""))
+@click.option("--geth/--no-geth", default=False)
 @click.option(
     "--max-concurrency",
     type=int,
@@ -63,14 +66,15 @@ async def inspect_many_blocks_command(
     rpc: str,
     max_concurrency: int,
     request_timeout: int,
+    geth: bool,
 ):
     inspect_db_session = get_inspect_session()
     trace_db_session = get_trace_session()
-
     inspector = MEVInspector(
         rpc,
         inspect_db_session,
         trace_db_session,
+        geth,
         max_concurrency=max_concurrency,
         request_timeout=request_timeout,
     )

mev_inspect/block.py

@@ -1,6 +1,8 @@
 import asyncio
 import logging
 from typing import List, Optional
+import json
+import aiohttp
 
 from sqlalchemy import orm
 from web3 import Web3
@@ -27,6 +29,7 @@ async def get_latest_block_number(base_provider) -> int:
 async def create_from_block_number(
     base_provider,
     w3: Web3,
+    geth: bool,
     block_number: int,
     trace_db_session: Optional[orm.Session],
 ) -> Block:
@@ -36,43 +39,64 @@ async def create_from_block_number(
         block = _find_block(trace_db_session, block_number)
 
     if block is None:
-        block = await _fetch_block(w3, base_provider, block_number)
-        return block
-    else:
+        block = await _fetch_block(w3, base_provider, geth, block_number)
         return block
+    return block
 
 
-async def _fetch_block(w3, base_provider, block_number: int, retries: int = 0) -> Block:
-    block_json, receipts_json, traces_json, base_fee_per_gas = await asyncio.gather(
-        w3.eth.get_block(block_number),
-        base_provider.make_request("eth_getBlockReceipts", [block_number]),
-        base_provider.make_request("trace_block", [block_number]),
-        fetch_base_fee_per_gas(w3, block_number),
-    )
-
-    try:
-        receipts: List[Receipt] = [
-            Receipt(**receipt) for receipt in receipts_json["result"]
-        ]
-        traces = [Trace(**trace_json) for trace_json in traces_json["result"]]
-    except KeyError as e:
-        logger.warning(
-            f"Failed to create objects from block: {block_number}: {e}, retrying: {retries + 1} / 3"
+async def _fetch_block(
+    w3, base_provider, geth: bool, block_number: int, retries: int = 0
+) -> Block:
+    if not geth:
+        block_json, receipts_json, traces_json, base_fee_per_gas = await asyncio.gather(
+            w3.eth.get_block(block_number),
+            base_provider.make_request("eth_getBlockReceipts", [block_number]),
+            base_provider.make_request("trace_block", [block_number]),
+            fetch_base_fee_per_gas(w3, block_number),
         )
-        if retries < 3:
-            await asyncio.sleep(5)
-            return await _fetch_block(w3, base_provider, block_number, retries)
-        else:
-            raise
 
-    return Block(
-        block_number=block_number,
-        block_timestamp=block_json["timestamp"],
-        miner=block_json["miner"],
-        base_fee_per_gas=base_fee_per_gas,
-        traces=traces,
-        receipts=receipts,
-    )
+        try:
+            receipts: List[Receipt] = [
+                Receipt(**receipt) for receipt in receipts_json["result"]
+            ]
+            traces = [Trace(**trace_json) for trace_json in traces_json["result"]]
+            return Block(
+                block_number=block_number,
+                block_timestamp=block_json["timestamp"],
+                miner=block_json["miner"],
+                base_fee_per_gas=base_fee_per_gas,
+                traces=traces,
+                receipts=receipts,
+            )
+        except KeyError as e:
+            logger.warning(
+                f"Failed to create objects from block: {block_number}: {e}, retrying: {retries + 1} / 3"
+            )
+            if retries < 3:
+                await asyncio.sleep(5)
+                return await _fetch_block(
+                    w3, base_provider, geth, block_number, retries
+                )
+            else:
+                raise
+    else:
+        # print(block_number)
+        block_json = await asyncio.gather(w3.eth.get_block(block_number))
+        traces = await geth_get_tx_traces_parity_format(base_provider, block_json[0])
+        geth_tx_receipts = await geth_get_tx_receipts_async(
+            base_provider.endpoint_uri, block_json[0]["transactions"]
+        )
+        receipts = geth_receipts_translator(block_json[0], geth_tx_receipts)
+        base_fee_per_gas = 0
+
+        return Block(
+            block_number=block_number,
+            block_timestamp=block_json[0]["timestamp"],
+            miner=block_json[0]["miner"],
+            base_fee_per_gas=base_fee_per_gas,
+            traces=traces,
+            receipts=receipts,
+        )
 
 
 def _find_block(
@@ -191,3 +215,140 @@ def get_transaction_hashes(calls: List[Trace]) -> List[str]:
                 result.append(call.transaction_hash)
 
     return result
+
+
+# Geth specific additions
+
+
+async def geth_get_tx_traces_parity_format(base_provider, block_json: dict):
+    # print(block_json['hash'].hex())
+    block_hash = block_json["hash"]
+    block_trace = await geth_get_tx_traces(base_provider, block_hash)
+    # print(block_trace)
+    parity_traces = []
+    for idx, trace in enumerate(block_trace["result"]):
+        if "result" in trace:
+            parity_traces.extend(
+                unwrap_tx_trace_for_parity(block_json, idx, trace["result"])
+            )
+    return parity_traces
+
+
+async def geth_get_tx_traces(base_provider, block_hash):
+    block_trace = await base_provider.make_request(
+        "debug_traceBlockByHash", [block_hash.hex(), {"tracer": "callTracer"}]
+    )
+    return block_trace
+
+
+def unwrap_tx_trace_for_parity(
+    block_json, tx_pos_in_block, tx_trace, position=[]
+) -> List[Trace]:
+    response_list = []
+    _calltype_mapping = {
+        "CALL": "call",
+        "DELEGATECALL": "delegateCall",
+        "CREATE": "create",
+        "SUICIDE": "suicide",
+        "REWARD": "reward",
+    }
+    try:
+        if tx_trace["type"] == "STATICCALL":
+            return []
+        action_dict = dict()
+        action_dict["callType"] = _calltype_mapping[tx_trace["type"]]
+        if action_dict["callType"] == "call":
+            action_dict["value"] = tx_trace["value"]
+        for key in ["from", "to", "gas", "input"]:
+            action_dict[key] = tx_trace[key]
+
+        result_dict = dict()
+        for key in ["gasUsed", "output"]:
+            result_dict[key] = tx_trace[key]
+
+        response_list.append(
+            Trace(
+                action=action_dict,
+                block_hash=str(block_json["hash"]),
+                block_number=int(block_json["number"]),
+                result=result_dict,
+                subtraces=len(tx_trace["calls"]) if "calls" in tx_trace.keys() else 0,
+                trace_address=position,
+                transaction_hash=block_json["transactions"][tx_pos_in_block].hex(),
+                transaction_position=tx_pos_in_block,
+                type=TraceType(_calltype_mapping[tx_trace["type"]]),
+            )
+        )
+    except Exception:
+        return []
+
+    if "calls" in tx_trace.keys():
+        for idx, subcall in enumerate(tx_trace["calls"]):
+            response_list.extend(
+                unwrap_tx_trace_for_parity(
+                    block_json, tx_pos_in_block, subcall, position + [idx]
+                )
+            )
+    return response_list
+
+
+async def geth_get_tx_receipts_task(session, endpoint_uri, tx):
+    data = {
+        "jsonrpc": "2.0",
+        "id": "0",
+        "method": "eth_getTransactionReceipt",
+        "params": [tx.hex()],
+    }
+    async with session.post(endpoint_uri, json=data) as response:
+        if response.status != 200:
+            response.raise_for_status()
+        return await response.text()
+
+
+async def geth_get_tx_receipts_async(endpoint_uri, transactions):
+    geth_tx_receipts = []
+    async with aiohttp.ClientSession() as session:
+        tasks = [
+            asyncio.create_task(geth_get_tx_receipts_task(session, endpoint_uri, tx))
+            for tx in transactions
+        ]
+        geth_tx_receipts = await asyncio.gather(*tasks)
+    return [json.loads(tx_receipts) for tx_receipts in geth_tx_receipts]
+
+
+def geth_receipts_translator(block_json, geth_tx_receipts) -> List[Receipt]:
+    json_decoded_receipts = [
+        tx_receipt["result"]
+        if tx_receipt != None and ("result" in tx_receipt.keys())
+        else None
+        for tx_receipt in geth_tx_receipts
+    ]
+    results = []
+    for idx, tx_receipt in enumerate(json_decoded_receipts):
+        if tx_receipt != None:
+            results.append(unwrap_tx_receipt_for_parity(block_json, idx, tx_receipt))
+    return results
+
+
+def unwrap_tx_receipt_for_parity(block_json, tx_pos_in_block, tx_receipt) -> Receipt:
+    try:
+        if tx_pos_in_block != int(tx_receipt["transactionIndex"], 16):
+            print(
+                "Alert the position of transaction in block is mismatched ",
+                tx_pos_in_block,
+                tx_receipt["transactionIndex"],
+            )
+        return Receipt(
+            block_number=block_json["number"],
+            transaction_hash=tx_receipt["transactionHash"],
+            transaction_index=tx_pos_in_block,
+            gas_used=tx_receipt["gasUsed"],
+            effective_gas_price=tx_receipt["effectiveGasPrice"],
+            cumulative_gas_used=tx_receipt["cumulativeGasUsed"],
+            to=tx_receipt["to"],
+        )
+
+    except Exception as e:
+        print("error while decoding receipt", tx_receipt, e)
+
+    return Receipt()