fix(m190): presenter 更新链路用例补上清单签名(6 条既有测试回绿)+ 测试公钥守门

背景:M190 把「验签」做成了强制且唯一收口(`source::verified_manifest`,先验签再解析),而
`crates/presenter` 的更新链路用例只写 `manifest.json`、不写 `.sig` —— 它们写在验签之前,所以在
dev 上红成 6 条 `signature_missing`。真发布本来就必须带 `.sig`,所以修的是**夹具**,不是判据:
没有放宽任何断言、没有在测试里关掉验签、没有把 `available=true` 改成「接受 Failed」。

夹具(`crates/presenter/src/host/update_tests.rs`):
* `write_manifest()` 把清单**连签名**成对落盘(`dist/stable.json` + `dist/stable.json.sig`),
  `dir_source()` 改走它;三处直接写清单的用例(坏清单 / 空清单 / 缺本平台产物)也改走它。
* 签名用 `TEST_SIGNING_SEED` + `key_id = test-only-key`,信封形状与 core 的
  `tests/support_sign.rs` **同源**(文件头写明「改一处要改两处」;presenter 不依赖 core 的
  `#[cfg(test)]` 资产,也没把测试资产导出成生产 API)。

为了让这把**公开**测试公钥在 presenter 的测试构建里被认得:
* core 新增 feature `update-test-key`(**只**把 `trust::TEST_ONLY` 并进信任表,不开任何数据源开关);
* 只有 `crates/presenter` 的 `[dev-dependencies]` 打开它(库/发布构建拿不到);锁里只多
  `ed25519-dalek` 这一行(presenter 的 dev-dep,包已在锁里,无新包、无版本变动);
* 新守门 `packaging/check_test_key_off.py`(238 行,带 6 条变异自检)接进 `release-guard.yml`:
  core 的 `Cargo.toml` 只许自己的声明、presenter 只许 `[dev-dependencies]` 段内,其余(workflow /
  packaging 脚本 / 根 Cargo.toml / cargo 配置)出现即红 —— 这把钥进发布构建就等于「谁都能签出官方更新」。
* 没有用 `debug_assertions`/`cfg(test)` 旁路:那会让「测试构建的信任表和发布构建不同」变成一句注释,
  而不是一条门禁。
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#!/usr/bin/env python3
"""守 `update-test-key`:这把**公开**的测试公钥不许进发布构建(M190 r3)。
背景:`crates/core` 的信任表(`trust::PRODUCTION`)正式构建里是空的(fail-closed,等用户录钥),
测试公钥 `trust::TEST_ONLY` 只在三档「仅测试」构建里并入:`cfg(test)`、测试通道那条 feature、
`update-test-key`。第三档是给 `crates/presenter` 的 `[dev-dependencies]` 用的——presenter 的更新链路
用例要构造「本构建认得」的签名清单,而它编译 core 时既没有 `cfg(test)`,也不该打开
「测试通道」那条 feature(它会**同时**给出「本地目录当更新源」这条路,是另一个更大的口子;
那条由 `check_test_source_off.py` 守。⚠ 本文件**刻意不写那条 feature 的全名**:那个守门按字面
扫 `packaging/**`,写了这里就红——这是它的设计(宁可误杀也不放过),不是笔误)。
这一档比「测试通道」那条 feature 窄,但它仍然是**信任锚的开关**:一旦进发布构建,任何人都能用公开种子
签出「官方更新」。所以它的出现位置必须是**白名单**,而不是「没人会这么写」:
| 允许出现的地方 | 形态 |
|---|---|
| `crates/core/Cargo.toml` | 只能是它自己的声明 `update-test-key = [` |
| `crates/presenter/Cargo.toml` | 只能出现在 `[dev-dependencies]` 段内 |
| 本脚本 | 它必须写出这个 feature 名 |
其余任何地方(workflow、`packaging/` 的脚本、根 `Cargo.toml`、`.cargo/config*.toml`、presenter 的
`[dependencies]`)提到它即红。`--self-test` 把这三类真实回归各注入一次,并断言合法写法不误杀。
python3 packaging/check_test_key_off.py
python3 packaging/check_test_key_off.py --self-test
"""
from __future__ import annotations
import argparse
import re
import sys
import tempfile
from pathlib import Path
FEATURE = "update-test-key"
ROOT = Path(__file__).resolve().parent.parent
GUARD = Path(__file__).resolve()
#: 扫描面(逐项列举,不用 `**` 全仓:那会把 `target/` 拖进来)。
GLOBS = (
".github/workflows/**/*.yml",
".github/workflows/**/*.yaml",
".github/actions/**/*.yml",
".github/actions/**/*.yaml",
"packaging/**/*.py",
"packaging/**/*.sh",
"packaging/**/*.ps1",
"Cargo.toml",
"crates/*/Cargo.toml",
"Makefile",
"justfile",
"Justfile",
"Taskfile.yml",
"Taskfile.yaml",
"crates/*/Makefile",
"packaging/Makefile",
".cargo/config.toml",
".cargo/config",
"crates/*/.cargo/config.toml",
"crates/*/.cargo/config",
)
#: 白名单:(相对路径, 允许的形态)。形态见 `check_manifest` 的三种判法。
ALLOWED_DECLARATION = "crates/core/Cargo.toml"
ALLOWED_DEV_DEPENDENCY = "crates/presenter/Cargo.toml"
DECLARATION = re.compile(rf"^\s*{re.escape(FEATURE)}\s*=\s*\[")
SECTION = re.compile(r"^\s*\[([^\]]+)\]\s*$")
def strip_comment(line: str) -> str:
"""引号感知地剥注释(与 `check_test_source_off.py` 同一手法,省得两处对同一行有不同看法)。"""
quote = None
for index, char in enumerate(line):
if quote is not None:
if char == quote:
quote = None
elif char in "\"'":
quote = char
elif char == "#" and (index == 0 or line[index - 1].isspace()):
return line[:index]
return line
def check_manifest(path: Path, where: str) -> list[str]:
"""`Cargo.toml`:核心只许自己的声明;presenter 只许 `[dev-dependencies]` 段内。"""
problems: list[str] = []
section = ""
for number, line in enumerate(path.read_text(encoding="utf-8").splitlines(), start=1):
code = strip_comment(line).strip()
if not code:
continue
header = SECTION.match(code)
if header:
section = header.group(1).strip()
continue
if FEATURE not in code:
continue
if where == ALLOWED_DECLARATION and DECLARATION.match(code):
continue
if where == ALLOWED_DEV_DEPENDENCY and section == "dev-dependencies":
continue
problems.append(
f"::error file={where}:{number}::{where} 在 `[{section or '顶部'}]` 里写了 `{FEATURE}`;"
"它只许出现在 crates/core/Cargo.toml 自己的声明与 crates/presenter/Cargo.toml 的 "
"`[dev-dependencies]` 里(这把公钥进发布构建 = 谁都能签出「官方更新」)"
)
return problems
def check_plain(path: Path, where: str) -> list[str]:
"""其余文件类型:出现即红(不解释形态)。"""
problems: list[str] = []
for number, line in enumerate(path.read_text(encoding="utf-8").splitlines(), start=1):
if FEATURE in strip_comment(line):
problems.append(
f"::error file={where}:{number}::{where} 提到 `{FEATURE}`:它不进 workflow / 打包脚本 / "
"cargo 配置(测试钥只许由 crates/presenter 的 dev-dependencies 打开)"
)
return problems
def scan(root: Path) -> list[str]:
"""扫整个仓库,返回所有问题(空 = 绿)。"""
problems: list[str] = []
for pattern in GLOBS:
for path in sorted(root.glob(pattern)):
if not path.is_file() or path.resolve() == GUARD:
continue
where = path.relative_to(root).as_posix()
try:
if path.name == "Cargo.toml":
problems += check_manifest(path, where)
else:
problems += check_plain(path, where)
except (OSError, UnicodeDecodeError) as error:
problems.append(f"::error file={where}::读不到:{error}")
return problems
# ────────────────────────── 变异自测 ──────────────────────────
BASELINE = {
"crates/core/Cargo.toml": (
"[features]\nother-feature = []\n\n# 注释里提到 update-test-key 不算违规\ntest-key = []\n"
"update-test-key = []\n"
),
"crates/presenter/Cargo.toml": (
"[dependencies]\nunlucky-core = { path = \"../core\" }\n\n"
"[dev-dependencies]\nunlucky-core = { path = \"../core\", features = [\"update-test-key\"] }\n"
),
".github/workflows/ci.yml": "jobs:\n a:\n steps:\n - run: cargo test\n",
}
VECTORS = [
(
"workflow 里打开它",
{".github/workflows/ci.yml": "jobs:\n a:\n steps:\n - run: cargo build --features update-test-key\n"},
"red",
),
(
"presenter 的 [dependencies] 里打开它",
{
"crates/presenter/Cargo.toml": (
"[dependencies]\nunlucky-core = { path = \"../core\", features = [\"update-test-key\"] }\n"
)
},
"red",
),
(
"根 Cargo.toml 把依赖提起来",
{
"Cargo.toml": (
'[workspace.dependencies]\nunlucky-core = { path = "crates/core", '
'features = ["update-test-key"] }\n'
)
},
"red",
),
("打包脚本提到它", {"packaging/x.sh": "cargo build --features update-test-key\n"}, "red"),
(
"core 自己的声明(合法)",
{"crates/core/Cargo.toml": "[features]\nupdate-test-key = []\n"},
"green",
),
("注释里提到它(合法)", {"packaging/y.py": "# 见 update-test-key 的说明\n"}, "green"),
]
def _scan_case(files: dict[str, str]) -> list[str]:
with tempfile.TemporaryDirectory(prefix="ull-test-key-guard-") as temp:
root = Path(temp)
for relative, text in files.items():
path = root / relative
path.parent.mkdir(parents=True, exist_ok=True)
path.write_text(text, encoding="utf-8")
return scan(root)
def self_test() -> int:
failures = 0
baseline = _scan_case(BASELINE)
if baseline:
print(f"FAIL 基线被判红:{baseline}", file=sys.stderr)
failures += 1
for label, files, expect in VECTORS:
merged = dict(BASELINE)
merged.update(files)
problems = _scan_case(merged)
red = bool(problems)
if (expect == "red") != red:
print(f"FAIL 向量「{label}」期望 {expect},实际 {'red' if red else 'green'}", file=sys.stderr)
failures += 1
print(f"self-test: {'ok' if failures == 0 else f'{failures} 处失败'}({len(VECTORS)} 条向量 + 基线)")
return 0 if failures == 0 else 1
def main(argv: list[str] | None = None) -> int:
parser = argparse.ArgumentParser(description="测试公钥不许进发布构建(M190)")
parser.add_argument("--self-test", action="store_true", help="注入变异:该红的红、该绿的绿")
parser.add_argument("--dir", type=Path, default=ROOT, help="仓库根(默认本文件上一级)")
args = parser.parse_args(argv)
if args.self_test:
return self_test()
problems = scan(args.dir)
for line in problems:
print(line, file=sys.stderr)
if problems:
print(f"FAIL:{len(problems)} 处(`{FEATURE}` 只许由 crates/presenter 的 dev-dependencies 打开)", file=sys.stderr)
return 1
print(f"ok: `{FEATURE}` 只出现在允许的位置(core 的声明 + presenter 的 dev-dependencies)")
return 0
if __name__ == "__main__":
raise SystemExit(main())