modify: 授权
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"""构建期授权守护测试：公钥注入 + 私钥泄漏守卫。
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对齐 `test_build_plugin.py` 对"插件包不得包含 secret_key"的同类断言 ——
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**签发私钥绝不能进入部署产物**：它是授权的唯一信任根，一旦随包发布，
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任何人都能签发授权，机器码绑定形同虚设。
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运行方式：`python test/test_license_build.py`，或 `uv run pytest test/test_license_build.py`。
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"""
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import os
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import sys
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import tempfile
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import tomllib
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from pathlib import Path
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ROOT = Path(__file__).resolve().parent.parent
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sys.path.insert(0, str(ROOT))
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sys.path.insert(0, str(ROOT / "utils" / "cli" / "src"))
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from chongming_cli.build import ( # noqa: E402
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ALLOW_NO_KEY_ENV,
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LICENSE_PUBKEY_ENV,
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_resolve_license_public_key,
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_set_license_pubkey,
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_stage_license_guard,
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)
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failures: list[str] = []
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def check(name, cond, detail=""):
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status = "PASS" if cond else "FAIL"
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print(f"[{status}] {name}" + (f" — {detail}" if detail else ""))
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if not cond:
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failures.append(name)
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def test_pubkey_injection_is_section_scoped():
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"""公钥只写进 [license] 段，注释与其它段不受影响。"""
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src = (ROOT / "public" / "config.toml").read_text(encoding="utf-8")
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out = _set_license_pubkey(src, "AAAABBBB=")
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body = tomllib.loads(out)
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check("注入后 TOML 可解析", body["license"]["public_key"] == "AAAABBBB=",
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str(body["license"].get("public_key")))
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# 只改了 [license] 段内那一行
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lic_start = out.index("[license]")
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prod_start = out.index("[production]")
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check("公钥位于 [license] 段内",
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'public_key = "AAAABBBB="' in out[lic_start:prod_start])
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check("[production] 段未被误改", "public_key" not in out[prod_start:])
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check("注释保留", "# 机器码授权" in out)
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check("其它段结构完整", "[production.module_system]" in out)
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check("[license] 段仍保留 path/min_match",
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body["license"]["path"] == "license.lic" and body["license"]["min_match"] == 3)
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diff = [i for i, (a, b) in enumerate(zip(src.splitlines(), out.splitlines())) if a != b]
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check("仅一行发生变化", len(diff) == 1, f"变化行号={diff}")
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def test_pubkey_resolution_order():
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"""公钥解析优先级：环境变量 > 文件环境变量 > 默认文件 license_public.key。
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必须在**空的临时目录**里跑：默认回退路径 ``license_public.key`` 是相对 CWD 的，
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而厂商在项目根放过这个文件是正常用法（也正是构建取公钥的正规途径），
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测试不能依赖它"不存在"。
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"""
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tmp = Path(tempfile.mkdtemp())
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key_file = tmp / "pk.txt"
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key_file.write_text("FROMFILE", encoding="utf-8")
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old_cwd = os.getcwd()
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old_env = dict(os.environ)
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try:
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os.chdir(tmp) # 空目录：既无 license_public.key 也无其它干扰
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for var in (LICENSE_PUBKEY_ENV, "CHONGMING_LICENSE_PUBKEY_FILE"):
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os.environ.pop(var, None)
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check("三者都无时返回空", _resolve_license_public_key() == "")
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# 默认文件回退（构建按此取公钥，之前漏测）
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(tmp / "license_public.key").write_text("FROMDEFAULT", encoding="utf-8")
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check("回退到默认文件 license_public.key",
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_resolve_license_public_key() == "FROMDEFAULT")
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os.environ["CHONGMING_LICENSE_PUBKEY_FILE"] = str(key_file)
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check("文件环境变量优先于默认文件",
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_resolve_license_public_key() == "FROMFILE")
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os.environ[LICENSE_PUBKEY_ENV] = "FROMENV"
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check("环境变量优先于文件", _resolve_license_public_key() == "FROMENV")
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finally:
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os.chdir(old_cwd)
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os.environ.clear()
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os.environ.update(old_env)
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def test_guard_detects_private_key():
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"""守护能检出私钥（按内容，与扩展名无关，含跨块边界）。"""
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tmp = Path(tempfile.mkdtemp())
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build = tmp / "build"
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(build / "sub").mkdir(parents=True)
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old_cwd = os.getcwd()
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try:
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os.chdir(tmp)
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(build / "ok.txt").write_text("正常内容\n", encoding="utf-8")
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check("干净产物通过", _stage_license_guard() == "未发现私钥泄漏")
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# 证书类 .pem 是合法的构建内容，不应被误判
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(build / "cert.pem").write_text(
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"-----BEGIN CERTIFICATE-----\nMIIB\n-----END CERTIFICATE-----\n", encoding="utf-8"
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)
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check("合法证书 .pem 不误判", _stage_license_guard() == "未发现私钥泄漏")
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# 私钥改名藏进普通文件 -> 按内容仍能检出
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leak = build / "sub" / "innocent.txt"
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leak.write_text("-----BEGIN PRIVATE KEY-----\nMIIEvQ\n", encoding="utf-8")
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try:
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_stage_license_guard()
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check("按内容检出改名的私钥", False, "未检出")
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except RuntimeError as exc:
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check("按内容检出改名的私钥", "innocent.txt" in str(exc))
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leak.unlink()
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# 跨 1MB 块边界的私钥
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(build / "big.bin").write_bytes(
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b"x" * (1 << 20) + b"-----BEGIN RSA PRIVATE KEY-----" + b"y" * (1 << 20)
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)
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try:
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_stage_license_guard()
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check("检出跨块边界的私钥", False, "未检出")
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except RuntimeError as exc:
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check("检出跨块边界的私钥", "big.bin" in str(exc))
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(build / "big.bin").unlink()
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# 文件名叫 license_private* 的一律拦下
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(build / "license_private.pem").write_text("(truncated)", encoding="utf-8")
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try:
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_stage_license_guard()
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check("按文件名拦下授权私钥文件", False, "未检出")
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except RuntimeError as exc:
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check("按文件名拦下授权私钥文件", "license_private" in str(exc))
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finally:
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os.chdir(old_cwd)
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def test_build_fails_without_pubkey():
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"""打包时缺少公钥 -> 构建失败（避免产出拒绝所有插件的砖头包）。"""
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import chongming_cli.build as build_mod
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tmp = Path(tempfile.mkdtemp())
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old_cwd = os.getcwd()
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old_env = dict(os.environ)
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try:
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# 复刻 build/ 最小结构：_stage_prepare_build_dir 需要 public/ 与 config.toml
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(tmp / "public" / "utils").mkdir(parents=True)
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(tmp / "public" / "main.py").write_text("", encoding="utf-8")
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(tmp / "public" / "server.py").write_text("", encoding="utf-8")
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(tmp / "public" / "config.toml").write_text(
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(ROOT / "public" / "config.toml").read_text(encoding="utf-8"), encoding="utf-8"
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)
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os.chdir(tmp)
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for var in (LICENSE_PUBKEY_ENV, "CHONGMING_LICENSE_PUBKEY_FILE", ALLOW_NO_KEY_ENV):
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os.environ.pop(var, None)
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try:
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build_mod._stage_prepare_build_dir({}, "pyinstaller") # type: ignore[arg-type]
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check("缺少公钥时构建失败", False, "未抛异常")
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except RuntimeError as exc:
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check("缺少公钥时构建失败", LICENSE_PUBKEY_ENV in str(exc))
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# 显式放行时才允许无公钥构建
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os.environ[ALLOW_NO_KEY_ENV] = "1"
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build_mod._stage_prepare_build_dir({}, "pyinstaller") # type: ignore[arg-type]
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built = tomllib.loads((tmp / "build" / "config.toml").read_text(encoding="utf-8"))
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check("显式放行时构建成功且公钥为空", built["license"]["public_key"] == "")
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# 提供公钥后应注入到产物配置
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os.environ[LICENSE_PUBKEY_ENV] = "INJECTEDKEY="
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build_mod._stage_prepare_build_dir({}, "pyinstaller") # type: ignore[arg-type]
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built = tomllib.loads((tmp / "build" / "config.toml").read_text(encoding="utf-8"))
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check("公钥被注入产物配置", built["license"]["public_key"] == "INJECTEDKEY=")
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check("产物配置仍含 min_match", built["license"]["min_match"] == 3)
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finally:
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os.chdir(old_cwd)
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os.environ.clear()
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os.environ.update(old_env)
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def test_mbank_signing_is_not_a_trust_root():
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""".mbank 验签用随包发布的对称密钥 —— 不能作为授权信任根。
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本测试固化这一认知：只要 sqlite_vfs 的 sign 仍是 HMAC，就说明它只能算防篡改，
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授权必须依赖非对称签名（chongming_license 的 Ed25519）。
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"""
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import inspect
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from sqlite_vfs import core as vfs_core
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src = inspect.getsource(vfs_core.SQLiteVFS.sign)
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check("确认 .mbank 签名为 HMAC（对称）", "hmac.new" in src,
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"若已改为非对称，可更新本测试与文档说明")
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check("确认验证端同样是对称 HMAC",
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"hmac.new" in inspect.getsource(vfs_core.SQLiteVFS.verify_signature))
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def main():
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tests = [v for k, v in sorted(globals().items()) if k.startswith("test_")]
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for fn in tests:
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print(f"\n--- {fn.__name__} ---")
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fn()
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print("\n" + "=" * 56)
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if failures:
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print(f"❌ {len(failures)} 项未通过: {failures}")
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return 1
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print("✅ 全部通过")
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return 0
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if __name__ == "__main__":
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sys.exit(main())
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