Add script to Create a Control file from references

docs/manual/developer/05_tools_and_utilities.md

@@ -112,6 +112,19 @@ Example
     $ ./utils/build_stig_control.py -p rhel8 -m shared/references/disa-stig-rhel8-v1r5-xccdf-manual.xml
 ```
 
+
+## Generating Controls From a Reference
+When converting profile to use a control file this script can be helpful in creating the skeleton control.
+The output of this script will need to be adjusted to add other keys such as title or description to the controls.
+This script does require that `./utils/rule_dir_json.py` be run before this script is used.
+See `./utils/build_control_from_reference.py --help` for the full set options the script provides.
+
+
+Example
+```bash
+    $ ./utils/build_control_from_reference.py --product rhel10 --reference ospp --output controls/ospp.yml
+```
+
 ## Generating login banner regular expressions
 
 Rules like `banner_etc_issue` and `dconf_gnome_login_banner_text` will

tests/CMakeLists.txt

@@ -107,6 +107,7 @@ mypy_test("utils/import_srg_spreadsheet.py" "skip")
 mypy_test("utils/check_eof.py" "normal")
 mypy_test("utils/import_disa_stig.py" "skip")
 mypy_test("tests/cces-removed.py" "normal")
+mypy_test("utils/build_control_from_reference.py" "skip")
 
 if(PYTHON_VERSION_MAJOR GREATER 2 AND PYTHON_VERSION_MINOR GREATER 7 AND PY_TRESTLE AND PY_LXML)
     mypy_test("utils/oscal/" "skip")
@@ -366,3 +367,12 @@ if(PYTHON_VERSION_MAJOR GREATER 2 AND PY_GITHUB)
         )
     endif()
 endif()
+
+if(PYTHON_VERSION_MAJOR GREATER 2)
+    add_test(
+        NAME "utils-build_control_from_reference_sanity"
+        COMMAND env "PYTHONPATH=$ENV{PYTHONPATH}" "${PYTHON_EXECUTABLE}" "${CMAKE_SOURCE_DIR}/utils/build_control_from_reference.py" "--product" "rhel10" "--reference" "ospp" "--root" "${CMAKE_SOURCE_DIR}" "--output" "${CMAKE_SOURCE_DIR}/build/rhel10_ospp_control.yml" "--json" "${CMAKE_SOURCE_DIR}/build/rule_dirs.json"
+    )
+    set_tests_properties("utils-build_control_from_reference_sanity" PROPERTIES FIXTURES_REQUIRED "rule-dir-json")
+    set_tests_properties("utils-build_control_from_reference_sanity" PROPERTIES DEPENDS "test-rule-dir-json")
+endif()

utils/build_control_from_reference.py

@@ -0,0 +1,102 @@
+#!/usr/bin/python3
+
+import argparse
+from collections import defaultdict
+import os
+import json
+import sys
+from typing import List, Dict
+import yaml
+
+
+import ssg.environment
+import ssg.yaml
+
+SSG_ROOT = os.path.abspath(os.path.join(os.path.dirname(__file__), ".."))
+BUILD_ROOT = os.path.join(SSG_ROOT, "build")
+RULES_JSON = os.path.join(BUILD_ROOT, "rule_dirs.json")
+BUILD_CONFIG = os.path.join(BUILD_ROOT, "build_config.yml")
+
+
+def _parse_args() -> argparse.Namespace:
+    parser = argparse.ArgumentParser(
+        description="Given a reference this script will create a control file.")
+    parser.add_argument("-j", "--json", type=str,
+                        help=f"Path to the rule_dirs.json file. Defaults to {RULES_JSON}",
+                        default=RULES_JSON)
+    parser.add_argument("-p", "--product", type=str, help="Product to build the control with",
+                        required=True)
+    parser.add_argument("-r", "--root", type=str,
+                        help=f"Path to the root of the project. Defaults to {SSG_ROOT}",
+                        default=SSG_ROOT)
+    parser.add_argument("-ref", "--reference", type=str,
+                        help="Reference to use for the profile. Example: ospp", required=True)
+    parser.add_argument("-c", "--build-config-yaml", default=BUILD_CONFIG,
+                        help=f"YAML file with information about the build configuration. "
+                             f"Defaults to {BUILD_CONFIG}")
+    parser.add_argument("-o", "--output", type=str, required=True,
+                        help=f"Path to output the control file.")
+    return parser.parse_args()
+
+
+def _get_rule_dirs(json_path: str) -> Dict[str, str]:
+    with open(json_path, "r") as f:
+        return json.load(f)
+
+
+def _check_rule_dirs_path(json: str):
+    if not os.path.exists(json):
+        print(f"Path {json} does not exist.", file=sys.stderr)
+        print("Hint: run ./utils/rule_dir_json.py first.", file=sys.stderr)
+        raise SystemExit(1)
+
+
+def _get_env_yaml(root: str, product: str, build_config_yaml: str) -> Dict:
+    product_dir = os.path.join(root, "products", product)
+    product_yaml_path = os.path.join(product_dir, "product.yml")
+    env_yaml = ssg.environment.open_environment(
+        build_config_yaml, product_yaml_path, os.path.join(root, "product_properties"))
+    return env_yaml
+
+
+def _get_id_mapping(env_yaml, reference, json_path: str) -> Dict:
+    rule_dir_json: Dict = _get_rule_dirs(json_path)
+    id_mapping: Dict[str, list[str]] = defaultdict(list) # type: ignore [misc] # For old mypy
+    for rule_id, rule_obj in rule_dir_json.items():
+        rule_yaml = os.path.join(rule_obj["dir"], "rule.yml")
+        rule = ssg.yaml.open_and_macro_expand(rule_yaml, env_yaml)
+        if "references" not in rule:
+            continue
+        ref_id = rule["references"].get(reference)
+        if not ref_id:
+            continue
+        ids: List[str] = ref_id.split(",")
+        for _id in ids:
+            id_mapping[_id].append(rule_id)
+    return id_mapping
+
+
+def main() -> int:
+    args = _parse_args()
+    _check_rule_dirs_path(args.json)
+    env_yaml = _get_env_yaml(args.root, args.product, args.build_config_yaml)
+    id_mapping = _get_id_mapping(env_yaml, args.reference, args.json)
+    output = dict()
+    output["levels"] = [{'id': 'base'}]
+    output["controls"] = list()
+    for _id in sorted(id_mapping.keys()):
+        rules = id_mapping[_id]
+        control = dict()
+        control["id"] = _id
+        control["levels"] = ["base"]
+        control["rules"] = sorted(rules)
+        control["status"] = "automated"
+        output["controls"].append(control)
+
+    with open(args.output, "w") as f:
+        f.write(yaml.dump(output, sort_keys=False))
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())