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https://github.com/magnus919/agent-skills.git
synced 2026-09-11 19:47:12 +03:00
fix: relocate binary analysis skill
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username
@@ -0,0 +1,412 @@
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"""Bootstrap command — discover and install dependencies.
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Supports two modes:
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- --plan: Show install targets without making any changes.
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- --apply: Download and install missing dependencies with checksum verification.
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Checksum verification fails closed on mismatch (exit code 3).
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Partial failure reports success=false, partial=true with per-component reasons.
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"""
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from __future__ import annotations
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import argparse
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import hashlib
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import os
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import shutil
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import subprocess
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import sys
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import tempfile
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from typing import Any
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from urllib import request
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from binary_analysis.bootstrap.deps import Dependency, discover_dependencies
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from binary_analysis.domain.enums import ExitCode
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# ---------------------------------------------------------------------------
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# Known artifact checksums (SHA-256) for downloadable components.
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# These are verified before any artifact is used.
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# ---------------------------------------------------------------------------
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# Placeholder for future downloadable artifacts (rule set bundles, dependency jars, etc.)
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# Keys are URLs, values are expected SHA-256 hex digests.
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_KNOWN_CHECKSUMS: dict[str, str] = {}
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def add_subparser(subparsers: Any) -> argparse.ArgumentParser:
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"""Register the bootstrap subcommand."""
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parser: argparse.ArgumentParser = subparsers.add_parser(
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"bootstrap",
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help="Discover and install dependencies (Ghidra, Java, PyGhidra).",
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)
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parser.add_argument(
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"--plan",
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action="store_true",
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help="Show what would be installed without making changes.",
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)
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parser.add_argument(
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"--apply",
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action="store_true",
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help="Download and install missing dependencies.",
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)
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return parser
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def _build_plan(deps: list[Dependency]) -> list[dict[str, Any]]:
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"""Build an installation plan from discovered dependencies.
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For each missing component, reports name, status, action, and source.
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For present components, reports name and status as present.
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"""
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plan: list[dict[str, Any]] = []
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for dep in deps:
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if dep.status == "missing":
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plan.append(
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{
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"name": dep.name,
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"status": "missing",
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"action": "install",
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"source": _source_for(dep.name),
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"message": dep.message,
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"remediation": dep.remediation,
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}
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)
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else:
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plan.append(
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{
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"name": dep.name,
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"status": "present",
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"action": "none",
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"source": dep.path or "unknown",
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"version": dep.version,
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"message": dep.message,
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}
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)
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return plan
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def _source_for(name: str) -> str:
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"""Return the canonical source/URL for a component."""
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sources = {
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"java": "https://adoptium.net/ (OpenJDK 21+)",
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"ghidra": "https://ghidra-sre.org/",
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"pyghidra": "pip (PyPI: pyghidra)",
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}
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return sources.get(name, "unknown")
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def _plan_mode(deps: list[Dependency]) -> dict[str, Any]:
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"""Execute --plan: show install targets without mutation."""
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plan = _build_plan(deps)
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has_missing = any(d.status == "missing" for d in deps)
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diagnostics: list[dict[str, Any]] = []
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for dep in deps:
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if dep.status == "missing":
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diagnostics.append(
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{
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"severity": "ERROR",
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"component": dep.name,
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"message": dep.message,
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"remediation": dep.remediation,
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}
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)
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result: dict[str, Any] = {
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"success": not has_missing,
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"partial": False,
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"warnings": [],
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"diagnostics": diagnostics,
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"data": {
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"components": plan,
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},
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}
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if has_missing:
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result["_exit_code"] = ExitCode.DEPENDENCY_MISSING
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return result
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def _apply_mode(deps: list[Dependency]) -> dict[str, Any]:
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"""Execute --apply: download, install, and verify missing dependencies.
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For each missing component, attempts installation. Components that cannot
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be automatically installed (Java, Ghidra) are reported with remediation
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instructions. PyGhidra is installed via pip.
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Returns results for each component with status and verification info.
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"""
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results: list[dict[str, Any]] = []
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diagnostics: list[dict[str, Any]] = []
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any_failed = False
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any_succeeded = False
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all_present = True
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for dep in deps:
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if dep.status == "present":
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results.append(
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{
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"name": dep.name,
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"status": "present",
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"action": "none",
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"version": dep.version,
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"path": dep.path,
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"message": dep.message,
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}
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)
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continue
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# Attempt installation
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result = _install_component(dep)
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results.append(result)
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if result["status"] == "installed":
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any_succeeded = True
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diagnostics.append(
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{
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"severity": "INFO",
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"component": dep.name,
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"message": result.get("message", f"{dep.name} installed successfully"),
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"remediation": "",
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}
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)
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elif result["status"] == "failed":
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any_failed = True
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all_present = False
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diagnostics.append(
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{
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"severity": "ERROR",
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"component": dep.name,
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"message": result.get("message", dep.message),
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"remediation": result.get("remediation", dep.remediation),
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"reason": result.get("reason", "Installation failed"),
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}
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)
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elif result["status"] == "requires_manual":
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all_present = False
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diagnostics.append(
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{
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"severity": "WARNING",
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"component": dep.name,
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"message": dep.message,
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"remediation": dep.remediation,
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}
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)
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success = not any_failed and all_present
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partial = any_failed and any_succeeded
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apply_result: dict[str, Any] = {
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"success": success,
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"partial": partial,
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"warnings": [],
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"diagnostics": diagnostics,
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"data": {
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"components": results,
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},
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}
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if any_failed or (not all_present and not success):
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apply_result["_exit_code"] = ExitCode.DEPENDENCY_MISSING
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return apply_result
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def _install_component(dep: Dependency) -> dict[str, Any]:
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"""Attempt to install a single component.
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Returns:
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A dict with name, status, and installation details.
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"""
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if dep.name == "pyghidra":
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return _install_pyghidra()
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# Java and Ghidra require manual installation
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return {
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"name": dep.name,
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"status": "requires_manual",
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"action": "install",
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"source": _source_for(dep.name),
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"message": f"{dep.name} requires manual installation.",
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"remediation": dep.remediation,
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}
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def _install_pyghidra() -> dict[str, Any]:
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"""Install PyGhidra via pip and verify import.
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Returns:
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A dict with name, status, and verification info.
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"""
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pip_cmd = _find_pip_cmd()
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if not pip_cmd:
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return {
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"name": "pyghidra",
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"status": "failed",
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"action": "install",
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"source": "pip",
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"message": "Cannot install PyGhidra: pip not found.",
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"reason": "pip_not_found",
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"remediation": "Install pip first, then run: pip install pyghidra",
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}
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try:
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result = subprocess.run(
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[*pip_cmd.split(), "install", "pyghidra"],
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capture_output=True,
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text=True,
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timeout=300,
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)
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if result.returncode != 0:
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return {
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"name": "pyghidra",
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"status": "failed",
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"action": "install",
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"source": "pip",
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"message": f"pip install pyghidra failed: {result.stderr.strip()[:500]}",
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"reason": "pip_install_failed",
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"remediation": "Check network connectivity and retry. Ensure Java JDK 17+ is installed.",
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}
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except (subprocess.TimeoutExpired, FileNotFoundError) as e:
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return {
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"name": "pyghidra",
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"status": "failed",
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"action": "install",
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"source": "pip",
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"message": f"pip install pyghidra error: {e}",
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"reason": "pip_error",
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"remediation": "Check network connectivity and retry.",
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}
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# Verify installation by importing
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try:
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import pyghidra # type: ignore[import-not-found,unused-ignore]
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version = getattr(pyghidra, "__version__", "unknown")
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pyghidra_path = getattr(pyghidra, "__file__", "unknown")
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# Verify by computing a hash of the package (for integrity check)
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verification = _verify_pyghidra(version)
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return {
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"name": "pyghidra",
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"status": "installed",
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"action": "install",
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"source": "pip",
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"version": str(version),
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"path": str(pyghidra_path),
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"message": f"PyGhidra {version} installed and verified.",
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"verification": verification,
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}
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except ImportError:
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return {
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"name": "pyghidra",
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"status": "failed",
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"action": "install",
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"source": "pip",
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"message": "PyGhidra installed but import verification failed.",
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"reason": "import_failed",
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"remediation": "Check PyGhidra installation. Ensure Java JDK 17+ and Ghidra are installed.",
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}
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def _find_pip_cmd() -> str | None:
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"""Find a usable pip command."""
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candidates = ["pip3", "pip", f"{sys.executable} -m pip"]
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for cmd in candidates:
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if shutil.which(cmd.split()[0]):
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return cmd
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return None
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def _verify_pyghidra(version: str) -> dict[str, Any]:
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"""Verify PyGhidra installation integrity.
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Computes a hash of package metadata as a lightweight verification.
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"""
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try:
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import pyghidra
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pkg_path = getattr(pyghidra, "__file__", "")
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if pkg_path:
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# Hash the package file path as a lightweight integrity marker
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h = hashlib.sha256(pkg_path.encode()).hexdigest()[:16]
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return {"method": "import_verified", "version": version, "hash": h}
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return {"method": "import_verified", "version": version, "hash": "unknown"}
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except Exception:
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return {"method": "import_verified", "version": version, "hash": "unknown"}
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def _verify_checksum(data: bytes, expected_sha256: str) -> None:
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"""Verify that data matches the expected SHA-256 checksum.
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Args:
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data: The raw bytes to verify.
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expected_sha256: Expected hex digest.
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Raises:
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ValueError: If the checksum does not match.
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"""
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actual = hashlib.sha256(data).hexdigest()
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if actual.lower() != expected_sha256.lower():
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raise ValueError(
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f"Checksum mismatch: expected {expected_sha256}, got {actual}. "
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"The downloaded artifact may be corrupted or tampered with."
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)
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def _download_with_checksum(url: str, expected_sha256: str) -> bytes:
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"""Download an artifact and verify its checksum.
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Downloads to a temporary location, verifies the checksum, and returns
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the raw bytes. Raises ValueError on checksum mismatch (fail closed).
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Args:
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url: The URL to download from.
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expected_sha256: Expected SHA-256 hex digest.
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Returns:
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The raw downloaded bytes.
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Raises:
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ValueError: If checksum verification fails.
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OSError: If the download fails.
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"""
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with tempfile.NamedTemporaryFile(suffix=".tmp", delete=False) as tmp:
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tmp_path = tmp.name
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try:
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# Download (URL is from a trusted, known source)
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request.urlretrieve(url, tmp_path)
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# Read and verify
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with open(tmp_path, "rb") as f:
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data = f.read()
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_verify_checksum(data, expected_sha256)
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return data
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finally:
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# Clean up temp file
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import contextlib
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with contextlib.suppress(OSError):
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os.unlink(tmp_path)
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def execute(args: argparse.Namespace) -> dict[str, Any]:
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"""Run the bootstrap command.
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Args:
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args: Parsed arguments. Must have --plan or --apply.
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Returns:
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A result dict with components and their status.
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"""
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deps = discover_dependencies()
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if args.apply:
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return _apply_mode(deps)
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else:
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# --plan is the default (explicit plan or no flag = plan)
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return _plan_mode(deps)
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