import binascii
import contextlib
import struct
from credsweeper.common.constants import ASCII
from credsweeper.config import Config
from credsweeper.credentials import LineData
from credsweeper.file_handler.analysis_target import AnalysisTarget
from credsweeper.filters import Filter
[docs]class ValueGrafanaServiceCheck(Filter):
"""Check that candidate have a known structure"""
def __init__(self, config: Config = None) -> None:
pass
[docs] def run(self, line_data: LineData, target: AnalysisTarget) -> bool:
"""Run filter checks on received token which might be structured.
Args:
line_data: credential candidate data
target: multiline target from which line data was obtained
Return:
True, if need to filter candidate and False if left
"""
with contextlib.suppress(Exception):
checksum = struct.unpack("<I", bytes.fromhex(line_data.value[38:]))[0]
data = line_data.value[:37].encode(ASCII)
crc32 = binascii.crc32(data)
if checksum == crc32:
return False
return True