355 lines
12 KiB
Python
355 lines
12 KiB
Python
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import json
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import os
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import threading
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import time
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from datetime import datetime, timezone
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from decimal import Decimal, InvalidOperation
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from typing import Any, Dict, List, Optional, Set, Tuple
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from loguru import logger
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from web3 import Web3
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TRANSFER_TOPIC = "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
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ERC20_ABI = [
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{
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"constant": True,
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"inputs": [],
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"name": "symbol",
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"outputs": [{"name": "", "type": "string"}],
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"type": "function",
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},
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{
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"constant": True,
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"inputs": [],
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"name": "decimals",
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"outputs": [{"name": "", "type": "uint8"}],
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"type": "function",
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},
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]
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def _env_bool(name: str, default: bool) -> bool:
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raw = os.getenv(name)
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if raw is None:
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return default
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return raw.strip().lower() in {"1", "true", "yes", "on"}
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def _env_int(name: str, default: int) -> int:
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raw = os.getenv(name)
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if raw is None:
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return default
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try:
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return int(raw)
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except Exception:
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return default
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def _short(addr: str, left: int = 6, right: int = 4) -> str:
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if not addr:
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return "unknown"
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if len(addr) <= left + right + 2:
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return addr
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return f"{addr[:left + 2]}...{addr[-right:]}"
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def _state_file() -> str:
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root = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
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return os.path.join(root, "data", "polygon_wallet_watch_state.json")
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def _load_state(path: str) -> Dict[str, Any]:
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if not os.path.exists(path):
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return {"last_scanned_block": 0, "seen_tx": {}}
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try:
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with open(path, "r", encoding="utf-8") as fh:
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data = json.load(fh)
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if isinstance(data, dict):
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data.setdefault("last_scanned_block", 0)
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data.setdefault("seen_tx", {})
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return data
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except Exception as exc:
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logger.warning(f"failed to load polygon watch state: {exc}")
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return {"last_scanned_block": 0, "seen_tx": {}}
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def _save_state(path: str, state: Dict[str, Any]) -> None:
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os.makedirs(os.path.dirname(path), exist_ok=True)
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tmp_path = f"{path}.tmp"
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with open(tmp_path, "w", encoding="utf-8") as fh:
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json.dump(state, fh, ensure_ascii=False, indent=2)
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os.replace(tmp_path, path)
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def _cleanup_seen_tx(state: Dict[str, Any], now_ts: int, keep_sec: int) -> None:
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seen = state.get("seen_tx", {})
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if not isinstance(seen, dict):
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state["seen_tx"] = {}
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return
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stale = [key for key, value in seen.items() if now_ts - int(value or 0) > keep_sec]
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for tx_hash in stale:
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seen.pop(tx_hash, None)
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def _parse_addresses(raw: Optional[str]) -> Set[str]:
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out: Set[str] = set()
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if not raw:
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return out
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for part in raw.split(","):
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addr = part.strip().lower()
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if addr and addr.startswith("0x") and len(addr) == 42:
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out.add(addr)
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return out
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def _polygon_scan_tx_url(tx_hash: str) -> str:
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base = os.getenv("POLYGON_WALLET_WATCH_TX_BASE") or "https://polygonscan.com/tx/"
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return f"{base.rstrip('/')}/{tx_hash}"
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def _polygon_scan_addr_url(address: str) -> str:
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base = os.getenv("POLYGON_WALLET_WATCH_ADDR_BASE") or "https://polygonscan.com/address/"
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return f"{base.rstrip('/')}/{address}"
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def _format_matic(wei_value: int) -> str:
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try:
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matic = Decimal(wei_value) / Decimal(10**18)
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except (InvalidOperation, ValueError):
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return "0"
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if matic == matic.to_integral_value():
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return f"{int(matic)}"
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return f"{matic.normalize():f}".rstrip("0").rstrip(".")
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def _safe_lower(value: Any) -> str:
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if value is None:
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return ""
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return str(value).lower()
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def _extract_transfer_events(
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w3: Web3,
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receipt: Any,
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watch_set: Set[str],
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token_meta_cache: Dict[str, Tuple[str, int]],
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) -> List[str]:
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lines: List[str] = []
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for log in receipt.logs or []:
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try:
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if not log.topics or len(log.topics) < 3:
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continue
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topic0 = log.topics[0].hex().lower()
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if topic0 != TRANSFER_TOPIC:
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continue
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from_addr = "0x" + log.topics[1].hex()[-40:]
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to_addr = "0x" + log.topics[2].hex()[-40:]
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from_addr = from_addr.lower()
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to_addr = to_addr.lower()
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if from_addr not in watch_set and to_addr not in watch_set:
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continue
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token_addr = _safe_lower(log.address)
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symbol, decimals = token_meta_cache.get(token_addr, ("ERC20", 18))
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if token_addr not in token_meta_cache:
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try:
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token = w3.eth.contract(address=Web3.to_checksum_address(token_addr), abi=ERC20_ABI)
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symbol_raw = token.functions.symbol().call()
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decimals_raw = token.functions.decimals().call()
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symbol = str(symbol_raw or "ERC20")
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decimals = int(decimals_raw)
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except Exception:
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symbol = "ERC20"
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decimals = 18
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token_meta_cache[token_addr] = (symbol, decimals)
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amount_int = int(log.data.hex(), 16) if log.data else 0
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amount = Decimal(amount_int) / (Decimal(10) ** Decimal(max(decimals, 0)))
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amount_txt = f"{amount.normalize():f}".rstrip("0").rstrip(".") if amount else "0"
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direction = "IN" if to_addr in watch_set and from_addr not in watch_set else "OUT"
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if from_addr in watch_set and to_addr in watch_set:
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direction = "SELF"
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lines.append(
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f"- {direction} {symbol}: {amount_txt} ({_short(from_addr)} -> {_short(to_addr)})"
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)
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except Exception:
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continue
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return lines
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def _build_message(
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tx: Any,
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block_ts: int,
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matched_wallet: str,
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transfer_lines: List[str],
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) -> str:
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tx_hash = tx["hash"].hex()
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from_addr = _safe_lower(tx.get("from"))
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to_addr = _safe_lower(tx.get("to"))
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if from_addr == matched_wallet and to_addr == matched_wallet:
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direction = "SELF"
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elif to_addr == matched_wallet:
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direction = "IN"
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elif from_addr == matched_wallet:
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direction = "OUT"
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else:
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direction = "RELATED"
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matic_value = int(tx.get("value", 0) or 0)
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block_time = datetime.fromtimestamp(block_ts, tz=timezone.utc).strftime("%Y-%m-%d %H:%M:%S UTC")
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lines = [
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"⛓ Polygon 钱包异动",
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f"钱包: {_short(matched_wallet)}",
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f"方向: {direction}",
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f"MATIC: {_format_matic(matic_value)}",
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f"区块: {tx.get('blockNumber')}",
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f"时间: {block_time}",
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f"Tx: {tx_hash}",
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]
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if transfer_lines:
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lines.append("Token 转账:")
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lines.extend(transfer_lines[:6])
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lines.append(f"交易链接: {_polygon_scan_tx_url(tx_hash)}")
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lines.append(f"钱包链接: {_polygon_scan_addr_url(matched_wallet)}")
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return "\n".join(lines)
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def start_polygon_wallet_watch_loop(bot: Any) -> Optional[threading.Thread]:
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enabled = _env_bool("POLYGON_WALLET_WATCH_ENABLED", False)
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chat_id = os.getenv("TELEGRAM_CHAT_ID")
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rpc_url = os.getenv("POLYGON_RPC_URL")
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watch_set = _parse_addresses(os.getenv("POLYGON_WALLET_WATCH_ADDRESSES"))
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if not enabled:
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logger.info("polygon wallet watcher disabled")
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return None
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if not chat_id:
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logger.warning("polygon wallet watcher skipped: TELEGRAM_CHAT_ID is not set")
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return None
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if not rpc_url:
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logger.warning("polygon wallet watcher skipped: POLYGON_RPC_URL is not set")
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return None
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if not watch_set:
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logger.warning("polygon wallet watcher skipped: POLYGON_WALLET_WATCH_ADDRESSES is empty")
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return None
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poll_sec = max(3, _env_int("POLYGON_WALLET_WATCH_INTERVAL_SEC", 8))
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confirmations = max(0, _env_int("POLYGON_WALLET_WATCH_CONFIRMATIONS", 2))
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max_blocks_per_cycle = max(1, _env_int("POLYGON_WALLET_WATCH_MAX_BLOCKS_PER_CYCLE", 30))
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seen_ttl_sec = max(3600, _env_int("POLYGON_WALLET_WATCH_SEEN_TTL_SEC", 7 * 86400))
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state_path = _state_file()
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provider_timeout = max(5, _env_int("POLYGON_WALLET_WATCH_RPC_TIMEOUT_SEC", 10))
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w3 = Web3(Web3.HTTPProvider(rpc_url, request_kwargs={"timeout": provider_timeout}))
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def _runner() -> None:
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token_meta_cache: Dict[str, Tuple[str, int]] = {}
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state = _load_state(state_path)
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if not w3.is_connected():
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logger.error("polygon wallet watcher failed: cannot connect to POLYGON_RPC_URL")
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return
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try:
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chain_id = int(w3.eth.chain_id)
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if chain_id != 137:
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logger.warning(f"polygon wallet watcher connected to unexpected chain_id={chain_id}")
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except Exception as exc:
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logger.warning(f"polygon wallet watcher cannot read chain id: {exc}")
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latest_block = int(w3.eth.block_number)
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if int(state.get("last_scanned_block") or 0) <= 0:
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state["last_scanned_block"] = max(0, latest_block - confirmations)
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_save_state(state_path, state)
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logger.info(
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f"polygon wallet watcher started wallets={len(watch_set)} "
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f"poll={poll_sec}s confirmations={confirmations} state_path={state_path}"
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)
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while True:
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cycle_ts = int(time.time())
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try:
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_cleanup_seen_tx(state, cycle_ts, seen_ttl_sec)
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latest = int(w3.eth.block_number)
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safe_latest = latest - confirmations
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last_scanned = int(state.get("last_scanned_block") or 0)
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if safe_latest <= last_scanned:
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time.sleep(poll_sec)
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continue
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from_block = last_scanned + 1
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to_block = min(safe_latest, from_block + max_blocks_per_cycle - 1)
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for block_num in range(from_block, to_block + 1):
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block = w3.eth.get_block(block_num, full_transactions=True)
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block_ts = int(block.get("timestamp") or cycle_ts)
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for tx in block.transactions or []:
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tx_hash = tx["hash"].hex().lower()
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from_addr = _safe_lower(tx.get("from"))
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to_addr = _safe_lower(tx.get("to"))
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matched_wallet = ""
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if from_addr in watch_set:
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matched_wallet = from_addr
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elif to_addr in watch_set:
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matched_wallet = to_addr
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if not matched_wallet:
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continue
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if tx_hash in state.get("seen_tx", {}):
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continue
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transfer_lines: List[str] = []
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try:
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receipt = w3.eth.get_transaction_receipt(tx["hash"])
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transfer_lines = _extract_transfer_events(
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w3=w3,
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receipt=receipt,
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watch_set=watch_set,
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token_meta_cache=token_meta_cache,
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)
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except Exception:
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transfer_lines = []
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message = _build_message(
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tx=tx,
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block_ts=block_ts,
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matched_wallet=matched_wallet,
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transfer_lines=transfer_lines,
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)
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bot.send_message(chat_id, message, disable_web_page_preview=True)
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state.setdefault("seen_tx", {})[tx_hash] = cycle_ts
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logger.info(
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f"polygon wallet alert pushed wallet={matched_wallet} "
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f"tx={tx_hash} block={block_num}"
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)
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state["last_scanned_block"] = block_num
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_save_state(state_path, state)
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time.sleep(1)
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except Exception:
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logger.exception("polygon wallet watcher cycle failed")
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time.sleep(poll_sec)
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thread = threading.Thread(
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target=_runner,
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name="polygon-wallet-watcher",
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daemon=True,
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)
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thread.start()
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return thread
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