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Splunk_Deploiement/apps/trackme/bin/trackmeexpandtokens.py

134 lines
4.0 KiB

#!/usr/bin/env python
# coding=utf-8
__author__ = "TrackMe Limited"
__copyright__ = "Copyright 2022-2026, TrackMe Limited, U.K."
__credits__ = "TrackMe Limited, U.K."
__license__ = "TrackMe Limited, all rights reserved"
__version__ = "0.1.0"
__maintainer__ = "TrackMe Limited, U.K."
__email__ = "support@trackme-solutions.com"
__status__ = "PRODUCTION"
# Standard library
import os
import sys
import json
import time
# Logging
import logging
from logging.handlers import RotatingFileHandler
# Networking
import urllib3
urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
# splunk home
splunkhome = os.environ["SPLUNK_HOME"]
# set logging
filehandler = RotatingFileHandler(
"%s/var/log/splunk/trackme_trackmeexpandtokens.log" % splunkhome,
mode="a",
maxBytes=10000000,
backupCount=1,
)
formatter = logging.Formatter(
"%(asctime)s %(levelname)s %(filename)s %(funcName)s %(lineno)d %(message)s"
)
logging.Formatter.converter = time.gmtime
filehandler.setFormatter(formatter)
log = logging.getLogger() # root logger - Good to get it only once.
for hdlr in log.handlers[:]: # remove the existing file handlers
if isinstance(hdlr, logging.FileHandler):
log.removeHandler(hdlr)
log.addHandler(filehandler) # set the new handler
# set the log level to INFO, DEBUG as the default is ERROR
log.setLevel(logging.INFO)
# append current directory
sys.path.append(os.path.dirname(os.path.abspath(__file__)))
# import libs
import import_declare_test
# import Splunk
from splunklib.searchcommands import (
dispatch,
StreamingCommand,
Configuration,
Option,
validators,
)
# Import trackme libs
from trackme_libs import trackme_reqinfo
@Configuration(distributed=False)
class TrackMeExpandTokens(StreamingCommand):
def stream(self, records):
# Start performance counter
start = time.time()
# Get request info and set logging level
reqinfo = trackme_reqinfo(
self._metadata.searchinfo.session_key, self._metadata.searchinfo.splunkd_uri
)
log.setLevel(reqinfo["logging_level"])
def expand_tokens(value, record):
# Only process if value is a string
if not isinstance(value, str):
return value
result = ""
i = 0
while i < len(value):
if value[i] == "$":
# Look for closing $
end = value.find("$", i + 1)
if end != -1:
token = value[i + 1 : end]
# Handle $result.<token_name>$
if token.startswith("result."):
token_name = token[7:]
else:
token_name = token
# Replace if token_name exists in record
if token_name in record:
replacement = str(record[token_name])
result += replacement
else:
# No replacement, keep as is
result += "$" + token + "$"
i = end + 1
else:
# No closing $, just add the rest
result += value[i:]
break
else:
result += value[i]
i += 1
return result
# Process records
for record in records:
result_record = {}
for key in record:
value = record[key]
# Expand tokens if value is a string
expanded_value = expand_tokens(value, record)
result_record[key] = expanded_value
yield result_record
# performance counter
logging.info(
f'trackmeexpendtokens has terminated, run_time="{round(time.time() - start, 3)}"'
)
dispatch(TrackMeExpandTokens, sys.argv, sys.stdin, sys.stdout, __name__)