Files
sigma-rules/hunting/generate_markdown.py
T
2024-05-03 13:43:22 -05:00

103 lines
4.0 KiB
Python

# Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
# or more contributor license agreements. Licensed under the Elastic License
# 2.0; you may not use this file except in compliance with the Elastic License
# 2.0.
"""Lightweight builtin toml-markdown converter."""
import tomllib
from dataclasses import dataclass, field
from pathlib import Path
from typing import List, Optional
HUNTING_DIR = Path(__file__).parent
ATLAS_URL = "https://atlas.mitre.org/techniques/"
ATTACK_URL = "https://attack.mitre.org/techniques/"
@dataclass
class Hunt:
"""Dataclass to represent a hunt."""
author: str
integration: str
uuid: str
name: str
language: str
query: str
notes: Optional[List[str]] = field(default_factory=list)
mitre: Optional[List[str]] = field(default_factory=list)
references: Optional[List[str]] = field(default_factory=list)
def load_toml(contents: str) -> Hunt:
"""Load and validate TOML content as Hunt dataclass."""
toml_dict = tomllib.loads(contents)
return Hunt(**toml_dict["hunt"])
def load_all_toml(base_path: Path) -> List[tuple[Hunt, Path]]:
"""Load all TOML files from the directory and return a list of Hunt configurations and their paths."""
hunts = []
for toml_file in base_path.rglob("*.toml"):
hunt_config = load_toml(toml_file.read_text())
hunts.append((hunt_config, toml_file))
return hunts
def convert_toml_to_markdown(hunt_config: Hunt, file_path: Path) -> str:
"""Convert Hunt to Markdown format."""
markdown = f"# {hunt_config.name}\n\n---\n\n"
markdown += "## Metadata\n\n"
markdown += f"- **Author:** {hunt_config.author}\n"
markdown += f"- **UUID:** `{hunt_config.uuid}`\n"
markdown += f"- **Integration:** `{hunt_config.integration}`\n"
markdown += f"- **Language:** `{hunt_config.language}`\n\n"
markdown += "## Query\n\n"
markdown += f"```sql\n{hunt_config.query}```\n\n"
if hunt_config.notes:
markdown += "## Notes\n\n" + "\n".join(f"- {note}" for note in hunt_config.notes)
if hunt_config.mitre:
markdown += "\n## MITRE ATT&CK Techniques\n\n" + "\n".join(
f"- [{tech}]({ATLAS_URL if tech.startswith('AML') else ATTACK_URL}"
f"{tech.replace('.', '/') if tech.startswith('T') else tech})\n"
for tech in hunt_config.mitre
)
if hunt_config.references:
markdown += "\n## References\n\n" + "\n".join(f"- {ref}" for ref in hunt_config.references)
markdown += f"\n- [{hunt_config.name}]({Path('../queries') / file_path.name})"
return markdown
def process_toml_files(base_path: Path) -> None:
"""Process all TOML files in the directory recursively and convert them to Markdown."""
hunts = load_all_toml(base_path)
index_content = "# List of Available Queries\n\nHere are the queries currently available:\n\n"
directories = {}
for hunt_config, toml_file in hunts:
markdown_content = convert_toml_to_markdown(hunt_config, toml_file)
markdown_path = toml_file.parent.parent / "docs" / f"{toml_file.stem}.md"
markdown_path.parent.mkdir(parents=True, exist_ok=True)
markdown_path.write_text(markdown_content, encoding="utf-8")
print(f"Markdown generated: {markdown_path}")
relative_path = markdown_path.relative_to(base_path)
folder_name = toml_file.parent.parent.name
directories.setdefault(folder_name, []).append((relative_path, hunt_config.name, hunt_config.language))
# Build index content
for folder, files in sorted(directories.items()):
index_content += f"## {folder}\n"
for file_path, rule_name, language in sorted(files):
index_path = "./" + str(file_path)
index_content += f"- [{rule_name}]({index_path}) ({language})\n"
# Write the index file at the base directory level
index_path = base_path / "index.md"
index_path.write_text(index_content, encoding="utf-8")
print(f"Index Markdown generated at: {index_path}")
if __name__ == "__main__":
process_toml_files(HUNTING_DIR)