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Merge pull request #28 from nbeguier/master
Add check_rules.py and update example.conf
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,143 @@ | ||
| #!/usr/bin/env python3 | ||
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| # Copyright (c) 2018 Caisse nationale d'Assurance Maladie | ||
| # | ||
| # This program is free software: you can redistribute it and/or modify | ||
| # it under the terms of the GNU General Public License as published by | ||
| # the Free Software Foundation, version 3 of the License. | ||
| # | ||
| # This program is distributed in the hope that it will be useful, | ||
| # but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| # GNU General Public License for more details. | ||
|
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| import os | ||
| import re | ||
| import sys | ||
| import getopt | ||
| import logging | ||
| from utils.confparser import ConfParser | ||
| from utils.utils import VerifyPath | ||
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| VERSION = "0.0.1" | ||
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| def usage(): | ||
| """ | ||
| CLI usage printing | ||
| """ | ||
| usage_output = """ | ||
| -h --help Print this help | ||
| -c --config Configuration file to use | ||
| -d --domain Domain name to check | ||
| """ | ||
| print(usage_output) | ||
| sys.exit(0) | ||
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| def ConfAnalysis(configuration_file): | ||
| """ | ||
| configuration file analysis. Load global variables with parameters found | ||
| in configuration file. | ||
| :param configuration_file: the configuration file | ||
| """ | ||
| global CONF | ||
| global SearchKeywords | ||
| global BlacklistKeywords | ||
| global DetectionThreshold | ||
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| try: | ||
| CONF = ConfParser(configuration_file) | ||
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| SearchKeywords = CONF.SearchKeywords | ||
| BlacklistKeywords = CONF.BlacklistKeywords | ||
| DetectionThreshold = CONF.DetectionThreshold | ||
| except: | ||
| err = sys.exc_info() | ||
| logging.error(" ConfParser Error: %s", err) | ||
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| def args_parse(): | ||
| """ | ||
| Tool options | ||
| """ | ||
| global ConfFile | ||
| global DOMAIN | ||
| if not len(sys.argv[1:]): | ||
| usage() | ||
| try: | ||
| opts, _ = getopt.getopt(sys.argv[1:], "hc:d:", ["help", "conf="]) | ||
| except getopt.GetoptError as err: | ||
| logging.error(" Option Error. Exiting... %s", err) | ||
| usage() | ||
| sys.exit(2) | ||
|
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| DOMAIN = None | ||
| for o, a in opts: | ||
| if o in ("-h", "--help"): | ||
| usage() | ||
| elif o in ("-c", "--config"): | ||
| if os.path.isfile(a): | ||
| ConfFile = a | ||
| else: | ||
| logging.error(" Can't find configuration file. Exiting...") | ||
| sys.exit(1) | ||
| elif o in ("-d", "--domain"): | ||
| DOMAIN = a | ||
| else: | ||
| assert False, "Unhandled Option" | ||
| if not DOMAIN: | ||
| usage() | ||
| sys.exit(2) | ||
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| def print_callback(): | ||
| """ | ||
| Truncate CertStreamMonitor/print_callback function, SQL/Logging support removed | ||
| """ | ||
| is_blacklisted = False | ||
| if BlacklistKeywords != str(): | ||
| is_blacklisted = re.findall(BlacklistKeywords, DOMAIN) | ||
| results = re.findall(SearchKeywords, DOMAIN) | ||
| FindNb = len(set(results)) | ||
|
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| # Matching host whith blacklisted keywords are ignored | ||
| if is_blacklisted and FindNb >= DetectionThreshold: | ||
| logging.info("No match - Blacklisted keywords.") | ||
| return | ||
|
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| # If search keywords occurence in the hostname is greater or equal to DetectionThreshold | ||
| if FindNb >= DetectionThreshold: | ||
| logging.info("This is a match, detection threashold reached.") | ||
| elif FindNb > 0 and FindNb < DetectionThreshold: | ||
| logging.info("No match - Detection threashold not reached.") | ||
| else: | ||
| logging.info("No match - Keywords not found.") | ||
| return | ||
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| # Main | ||
| def main(): | ||
| # Config | ||
| ConfAnalysis(ConfFile) | ||
| VerifyPath() | ||
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| # logging | ||
| logger = logging.getLogger() | ||
| logger.setLevel(logging.DEBUG) | ||
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| # term handler | ||
| stream_handler = logging.StreamHandler() | ||
| stream_handler.setLevel(logging.INFO) | ||
| logger.addHandler(stream_handler) | ||
| logging.info( | ||
| "Looking for these strings: %s, detection threshold: %s", | ||
| SearchKeywords, | ||
| DetectionThreshold) | ||
| print_callback() | ||
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| # Start | ||
| if __name__ == '__main__': | ||
| args_parse() | ||
| main() |
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