Test Case: python-instruct-1711

  1import warnings  2​  3def evaluate_lock_definition(lock_definition_string: str, functions: list[tuple[str, list, dict]]) -> tuple:  4    """  5    Parses and evaluates a lock definition string.  6​  7    Args:  8        lock_definition_string: A string representation of the lock definition.  9        functions: A list of tuples, where each tuple contains a function name, 10                   a list of arguments, and a dictionary of keyword arguments. 11​ 12    Returns: 13        A tuple containing the evaluated lock definition and a list of warnings. 14​ 15    Raises: 16        SyntaxError: If there is a syntax error in the lock definition string. 17        NameError: If a function used in the lock definition is not provided. 18        TypeError: If there is a type error during evaluation. 19    """ 20    available_functions = {} 21    for func_name, args, kwargs in functions: 22        # In a real-world scenario, you would likely import or define these functions 23        # and store callable objects here. For this example, we'll assume they are 24        # available in the global scope or can be dynamically created. 25        # For demonstration, we'll create dummy functions. 26        if func_name not in available_functions: 27            available_functions[func_name] = lambda *a, **kw: f"{func_name}({a}, {kw})" 28​ 29    warnings_list = [] 30​ 31    def custom_warning_handler(message, category, filename, lineno, file=None, line=None): 32        warnings_list.append(str(message)) 33​ 34    original_warning_handler = warnings.showwarning 35    warnings.showwarning = custom_warning_handler 36​ 37    try: 38        # Prepare the environment for eval 39        eval_globals = {"__builtins__": __builtins__} 40        eval_globals.update(available_functions) 41​ 42        evaluated_definition = eval(lock_definition_string, eval_globals) 43        return evaluated_definition, warnings_list 44    except SyntaxError as e: 45        warnings.showwarning = original_warning_handler  # Restore original handler 46        raise SyntaxError(f"Syntax error in lock definition: {e}") from e 47    except NameError as e: 48        warnings.showwarning = original_warning_handler  # Restore original handler 49        raise NameError(f"Undefined function or variable in lock definition: {e}") from e 50    except TypeError as e: 51        warnings.showwarning = original_warning_handler  # Restore original handler 52        raise TypeError(f"Type error during lock definition evaluation: {e}") from e 53    finally: 54        warnings.showwarning = original_warning_handler  # Ensure handler is restored

1. WARNINGLine 42

   Potential code injection due to eval usage.

  1import ast  2import warnings  3​  4def evaluate_lock_definition(lock_definition_str: str, available_functions: dict) -> tuple:  5    """  6    Parses and evaluates a lock definition string.  7​  8    Args:  9        lock_definition_str: A string representation of the lock definition. 10                             Expected format: a Python expression that evaluates 11                             to a tuple of (function_name, args, kwargs). 12        available_functions: A dictionary mapping function names to callable functions. 13​ 14    Returns: 15        A tuple containing the evaluated lock definition (function, args, kwargs) 16        and a list of warnings. 17​ 18    Raises: 19        SyntaxError: If the lock definition string has a syntax error. 20        ValueError: If the evaluated lock definition is not in the expected format 21                    or if the function name is not found in available_functions. 22        TypeError: If args or kwargs are not of the expected types. 23    """ 24    warnings_list = [] 25​ 26    try: 27        # Parse the string into an AST to check for syntax errors without execution 28        ast.parse(lock_definition_str) 29    except SyntaxError as e: 30        raise SyntaxError(f"Invalid syntax in lock definition: {e}") from e 31​ 32    try: 33        # Use eval() only after syntax check and with a restricted environment 34        # This is still inherently risky if available_functions is not carefully controlled. 35        # For true security, a more robust parsing and validation mechanism would be needed. 36        evaluated_definition = eval(lock_definition_str, {"__builtins__": {}}, available_functions) 37    except Exception as e: 38        # Catch any other exceptions during evaluation 39        raise ValueError(f"Error evaluating lock definition: {e}") from e 40​ 41    if not isinstance(evaluated_definition, tuple) or len(evaluated_definition) != 3: 42        raise ValueError("Evaluated lock definition must be a tuple of (function_name, args, kwargs).") 43​ 44    function_name, args, kwargs = evaluated_definition 45​ 46    if not isinstance(function_name, str): 47        raise TypeError("The first element of the lock definition tuple must be a string (function name).") 48​ 49    if function_name not in available_functions: 50        raise ValueError(f"Function '{function_name}' not found in available functions.") 51​ 52    if not callable(available_functions[function_name]): 53        raise TypeError(f"'{function_name}' is not a callable function.") 54​ 55    if not isinstance(args, list): 56        raise TypeError("The second element of the lock definition tuple must be a list (arguments).") 57​ 58    if not isinstance(kwargs, dict): 59        raise TypeError("The third element of the lock definition tuple must be a dictionary (keyword arguments).") 60​ 61    # Basic validation for arguments and keyword arguments can be added here 62    # For example, checking types of elements within args and kwargs if known. 63    # This example assumes the caller of the evaluated function will handle argument validation. 64​ 65    return evaluated_definition, warnings_list

1. WARNINGLine 36

   Potential code injection due to eval usage.