helpers.py 文件源码

def cmd_check(cmd):
    """Basic check for redirection in command"""

    try:
        results = next((False for param in shlex.split(cmd)
                        for rparam in REDIRECT_COMMANDS
                        if rparam == param), True)

        if not results:
            logger.warning("Possible injection", cmd=cmd)
    except Exception as error:
        logger.warning("Possible injection/weirdness", cmd=cmd, error=error.message)