Function checkFile

lib/core/common.py:1361–1393

Checks for file existence and readability >>> checkFile(__file__) True

(filename, raiseOnError=True)

    return re.search(r"\A[0-9]+\Z", value or "") is not None

def checkFile(filename, raiseOnError=True):
    """
    Checks for file existence and readability

    >>> checkFile(__file__)
    True
    """

    valid = True

    if filename:
        filename = filename.strip('"\'')

    if filename == STDIN_PIPE_DASH:
        return checkPipedInput()
    else:
        try:
            if filename is None or not os.path.isfile(filename):
                valid = False
        except:
            valid = False

        if valid:
            try:
                with open(filename, "rb"):
                    pass
            except:
                valid = False

    if not valid and raiseOnError:
        raise SqlmapSystemException("unable to read file '%s'" % filename)

    return valid

def banner():
    """