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#!/usr/bin/env python3 |
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import sys |
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import os |
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import argparse |
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import subprocess |
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import json |
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import ssg.build_remediations |
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import ssg.fixes |
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import ssg.rule_yaml |
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import ssg.utils |
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SSG_ROOT = os.path.abspath(os.path.join(os.path.dirname(__file__), "..")) |
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REMEDIATION_LANGS = list(ssg.build_remediations.REMEDIATION_TO_EXT_MAP) |
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View Code Duplication |
def parse_args(): |
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parser = argparse.ArgumentParser() |
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parser.add_argument("-j", "--json", type=str, action="store", default="build/rule_dirs.json", |
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help="File to read json output of rule_dir_json from (defaults " |
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"to build/rule_dirs.json)") |
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parser.add_argument("rule_id", type=str, help="Rule to change, by id") |
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parser.add_argument("fix_lang", choices=REMEDIATION_LANGS, help="Remediation to change") |
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parser.add_argument("action", choices=['add', 'remove', 'list', 'replace', 'delete', 'make_shared', 'diff'], |
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help="Rule to change, by id") |
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parser.add_argument("products", type=str, nargs='*', |
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help="Products or platforms to perform action with on rule_id. For replace, " |
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"the expected format is " |
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"platform[,other_platform]~platform[,other_platform] " |
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"where the first half is the platforms that are required to " |
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"match, and are replaced by the platforms in the second half " |
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"if all match. Add and remove require platforms and only apply " |
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"to the shared OVAL; delete, make_shared, and diff require products.") |
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return parser.parse_args() |
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def list_platforms(rule_obj, lang): |
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print("Computed products:") |
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for fix_id in sorted(rule_obj['remediations'].get(lang, {})): |
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fix = rule_obj['remediations'][lang][fix_id] |
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print(" - %s" % fix_id) |
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for product in sorted(fix.get('products', [])): |
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print(" - %s" % product) |
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print("") |
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print("Actual platforms:") |
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for rule_id in sorted(rule_obj['remediations'].get(lang, {})): |
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fix = rule_obj['remediations'][lang][rule_id] |
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fix_file = ssg.fixes.get_fix_path(rule_obj, lang, rule_id) |
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platforms = ssg.fixes.applicable_platforms(fix_file) |
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print(" - %s" % fix_id) |
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for platform in platforms: |
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print(" - %s" % platform) |
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print("") |
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def add_platforms(rule_obj, lang, platforms): |
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fix_file, fix_contents = ssg.fixes.get_fix_contents(rule_obj, lang, 'shared') |
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current_platforms = ssg.fixes.applicable_platforms(fix_file) |
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new_platforms = set(current_platforms) |
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new_platforms.update(platforms) |
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print("Current platforms: %s" % ','.join(sorted(current_platforms))) |
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print("New platforms: %s" % ','.join(sorted(new_platforms))) |
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new_contents = ssg.fixes.set_applicable_platforms(fix_contents, |
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new_platforms) |
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ssg.utils.write_list_file(fix_file, new_contents) |
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def remove_platforms(rule_obj, lang, platforms): |
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fix_file, fix_contents = ssg.fixes.get_fix_contents(rule_obj, lang, 'shared') |
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current_platforms = ssg.fixes.applicable_platforms(fix_file) |
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new_platforms = set(current_platforms).difference(platforms) |
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print("Current platforms: %s" % ','.join(sorted(current_platforms))) |
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print("New platforms: %s" % ','.join(sorted(new_platforms))) |
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new_contents = ssg.fixes.set_applicable_platforms(fix_contents, |
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new_platforms) |
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ssg.utils.write_list_file(fix_file, new_contents) |
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View Code Duplication |
def replace_platforms(rule_obj, lang, platforms): |
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fix_file, fix_contents = ssg.fixes.get_fix_contents(rule_obj, lang, 'shared') |
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current_platforms = ssg.fixes.applicable_platforms(fix_file) |
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new_platforms = set(current_platforms) |
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for platform in platforms: |
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parsed_platform = platform.split('~') |
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if not len(parsed_platform) == 2: |
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print("Invalid platform replacement description: %s" % product, |
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file=sys.stderr) |
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sys.exit(1) |
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match = ssg.rule_yaml.parse_prodtype(parsed_platform[0]) |
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replacement = ssg.rule_yaml.parse_prodtype(parsed_platform[1]) |
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if match.issubset(current_platforms): |
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new_platforms.difference_update(match) |
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new_platforms.update(replacement) |
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print("Current platforms: %s" % ','.join(sorted(current_platforms))) |
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print("New platforms: %s" % ','.join(sorted(new_platforms))) |
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new_contents = ssg.fixes.set_applicable_platforms(fix_contents, |
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new_platforms) |
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ssg.utils.write_list_file(fix_file, new_contents) |
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def delete_fixes(rule_obj, lang, products): |
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for product in products: |
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fix_file = ssg.fixes.get_fix_path(rule_obj, lang, product) |
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os.remove(fix_file) |
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print("Removed: %s" % fix_file) |
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def make_shared_fix(rule_obj, lang, products): |
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if not products or len(products) > 1: |
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raise ValueError("Must pass exactly one product for the make_shared option.") |
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if 'remediations' not in rule_obj or lang not in rule_obj['remediations']: |
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raise ValueError("Rule is missing fixes.") |
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lang_ext = ssg.build_remediations.REMEDIATION_TO_EXT_MAP[lang] |
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shared_name = "shared" + lang_ext |
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if shared_name in rule_obj['remediations'][lang]: |
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raise ValueError("Already have shared fix for rule_id:%s; refusing " |
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"to continue." % rule_obj['id']) |
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fix_file = ssg.fixes.get_fix_path(rule_obj, lang, products[0]) |
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shared_fix_file = os.path.join(rule_obj['dir'], lang, shared_name) |
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os.rename(fix_file, shared_fix_file) |
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print("Moved %s -> %s" % (fix_file, shared_fix_file)) |
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def diff_fixes(rule_obj, lang, products): |
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if not products or len(products) != 2 or products[0] == products[1]: |
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raise ValueError("Must pass exactly two products for the diff option.") |
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if 'remediations' not in rule_obj or lang not in rule_obj['remediations']: |
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raise ValueError("Rule is missing fixes.") |
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left_fix_file = ssg.fixes.get_fix_path(rule_obj, lang, products[0]) |
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right_fix_file = ssg.fixes.get_fix_path(rule_obj, lang, products[1]) |
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subprocess.run(['diff', '--color=always', left_fix_file, right_fix_file]) |
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def main(): |
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args = parse_args() |
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json_file = open(args.json, 'r') |
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known_rules = json.load(json_file) |
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if not args.rule_id in known_rules: |
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print("Error: rule_id:%s is not known!" % args.rule_id, file=sys.stderr) |
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print("If you think this is an error, try regenerating the JSON.", file=sys.stderr) |
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sys.exit(1) |
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if args.action != "list" and not args.products: |
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print("Error: expected a list of products or replace transformations but " |
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"none given.", file=sys.stderr) |
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sys.exit(1) |
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rule_obj = known_rules[args.rule_id] |
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print("rule_id:%s\n" % args.rule_id) |
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if args.action == "list": |
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list_platforms(rule_obj, args.fix_lang) |
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elif args.action == "add": |
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add_platforms(rule_obj, args.fix_lang, args.products) |
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elif args.action == "remove": |
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remove_platforms(rule_obj, args.fix_lang, args.products) |
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elif args.action == "replace": |
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replace_platforms(rule_obj, args.fix_lang, args.products) |
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elif args.action == 'delete': |
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delete_fixes(rule_obj, args.fix_lang, args.products) |
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elif args.action == 'make_shared': |
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make_shared_fix(rule_obj, args.fix_lang, args.products) |
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elif args.action == 'diff': |
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diff_fixes(rule_obj, args.fix_lang, args.products) |
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else: |
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print("Unknown option: %s" % args.action) |
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if __name__ == "__main__": |
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main() |
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