Spaces:
Sleeping
Sleeping
File size: 2,860 Bytes
08c19c7 8fccda7 08c19c7 8fccda7 08c19c7 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 | """
data_loader.py
--------------
Loads and indexes smart contract data from JSON files.
Each contract is parsed into a structured dict; vulnerable functions
are indexed for fast lookup by Task 1.
"""
import json
import os
import random
from typing import Any, Dict, List, Optional, Tuple
DATA_DIR = os.path.join(os.path.dirname(__file__))
DEFAULT_CONTRACTS_FILE = os.path.join(DATA_DIR, "contracts.json")
DEFAULT_VUNERABILITIES_FILE = os.path.join(DATA_DIR, "vulnerabilities.json")
def load_contracts(path: str = DEFAULT_CONTRACTS_FILE) -> List[Dict[str, Any]]:
"""Load and return all contracts from the JSON dataset."""
with open(path, "r") as f:
return json.load(f)
def load_vulnerabilities(path: str = DEFAULT_VUNERABILITIES_FILE) -> List[Dict[str, Any]]:
"""Load and return all vulnerability entries from the JSON dataset."""
with open(path, "r") as f:
return json.load(f)
def get_all_vulnerable_entries(
contracts: List[Dict[str, Any]],
) -> List[Tuple[Dict[str, Any], Dict[str, Any]]]:
"""
Returns a flat list of (contract, function) pairs where
function['vulnerable'] is True.
Used by Task 1 to populate the episode pool.
"""
entries = []
for contract in contracts:
for fn in contract.get("functions", []):
if fn.get("vulnerable", False):
entries.append((contract, fn))
return entries
def sample_episode(
contracts: List[Dict[str, Any]],
rng: Optional[random.Random] = None,
) -> Tuple[Dict[str, Any], Dict[str, Any]]:
"""
Randomly selects one (contract, vulnerable_function) pair.
Returns the contract dict and the target function dict.
"""
if rng is None:
rng = random.Random()
entries = get_all_vulnerable_entries(contracts)
if not entries:
raise ValueError("No vulnerable functions found in dataset.")
return rng.choice(entries)
def get_function_by_name(
contract: Dict[str, Any], name: str
) -> Optional[Dict[str, Any]]:
"""Case-insensitive function lookup within a contract."""
for fn in contract.get("functions", []):
if fn["name"].lower() == name.lower():
return fn
return None
def get_state_variable_by_name(
contract: Dict[str, Any], name: str
) -> Optional[Dict[str, Any]]:
"""Case-insensitive state variable lookup."""
for sv in contract.get("state_variables", []):
if sv["name"].lower() == name.lower():
return sv
return None
def list_function_names(contract: Dict[str, Any]) -> List[str]:
"""Return all function names in the contract."""
return [fn["name"] for fn in contract.get("functions", [])]
def list_state_variable_names(contract: Dict[str, Any]) -> List[str]:
"""Return all state variable names."""
return [sv["name"] for sv in contract.get("state_variables", [])] |