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# SPDX-FileCopyrightText: Peter Pentchev <roam@ringlet.net>
# SPDX-License-Identifier: GPL-2.0-or-later
"""Unit tests for the main functionality of the `debsigs` tool."""
from __future__ import annotations
import shutil
import subprocess # noqa: S404
import typing
import pytest
from . import util
from .util import test_cfg # noqa: F401 # pytest fixture
if typing.TYPE_CHECKING:
import pathlib
from typing import Final
from testsigs import defs
def test_list(test_cfg: util.ConfigAggr) -> None: # noqa: F811 # pytest fixture
"""Make sure `debsigs --list` on an unsigned package does not return anything."""
with test_cfg.cfg_with_tempd() as cfg:
if not test_cfg.has_feature("cmd-list", "1"):
pytest.skip("No `debsigs --list` support")
assert util.debsigs_list(cfg, test_cfg.changes_orig.debs[0]) == []
def _copy_and_sign_package(cfg: defs.Config, pkg_orig: pathlib.Path, sigtype: str) -> pathlib.Path:
"""Copy the package file, run `debsigs --sign`."""
pkg_signed: Final = cfg.path.work / pkg_orig.name
shutil.copy2(pkg_orig, pkg_signed)
subprocess.check_call( # noqa: S603
[cfg.prog.debsigs, f"--sign={sigtype}", "--", pkg_signed.name],
cwd=cfg.path.work,
env=cfg.env,
)
cmp_res: Final = subprocess.run( # noqa: S603
["cmp", "--", pkg_orig, pkg_signed], # noqa: S607
check=False,
cwd=cfg.path.work,
env=cfg.env,
)
if cmp_res.returncode == 0:
raise RuntimeError(repr((cfg.prog.debsigs, pkg_orig, pkg_signed)))
return pkg_signed
def _test_ar_sections(cfg: defs.Config, pkg_orig: pathlib.Path, pkg_signed: pathlib.Path) -> None:
"""Make sure the signed Debian package has exactly one more archive section."""
sections_orig: Final = subprocess.check_output( # noqa: S603
["ar", "t", "--", pkg_orig], # noqa: S607
cwd=cfg.path.work,
encoding="UTF-8",
env=cfg.env,
).splitlines()
if any(name.startswith("_gpg") for name in sections_orig):
raise RuntimeError(repr(sections_orig))
sections_signed: Final = subprocess.check_output( # noqa: S603
["ar", "t", "--", pkg_signed], # noqa: S607
cwd=cfg.path.work,
encoding="UTF-8",
env=cfg.env,
).splitlines()
if sections_signed != [*sections_orig, "_gpgorigin"]:
raise RuntimeError(repr((sections_orig, sections_signed)))
def _test_with_debsigs(tcfg: util.ConfigAggr, cfg: defs.Config, pkg_signed: pathlib.Path) -> None:
"""Run `debsigs --verify` now that it has actually been implemented."""
if not tcfg.has_feature("cmd-verify", "1"):
pytest.skip("No `debsigs --verify` support")
subprocess.check_call( # noqa: S603
[cfg.prog.debsigs, "--verify", pkg_signed],
cwd=cfg.path.work,
env=cfg.env,
)
def _test_with_debsig_verify(
cfg: defs.Config,
keys: defs.KeyFiles,
pkg_signed: pathlib.Path,
sign_fpr: str,
) -> None:
"""Prepare the policy file for `debsig-verify` and run it."""
# Copied over from debsig-verify's `test/policies/*/generic.pol`
policy_text: Final = f"""<?xml version="1.0"?>
<!DOCTYPE Policy SYSTEM "https://www.debian.org/debsig/1.0/policy.dtd">
<Policy xmlns="https://www.debian.org/debsig/1.0/">
<!-- This is mainly a sanity check, since our filename is that of the ID
anyway. -->
<Origin Name="origin" id="{sign_fpr}" Description="Debsig testing"/>
<!-- This is required to match in order for this policy to be used. We
reject the release Type, since we want a different rule set for
that. -->
<Selection>
<Required Type="origin" File="{keys.public_bin.name}" id="{sign_fpr}"/>
</Selection>
<!-- Once we decide to use this policy, this must pass in order to verify
the package. -->
<Verification MinOptional="0">
<Required Type="origin" File="{keys.public_bin.name}" id="{sign_fpr}"/>
</Verification>
</Policy>
"""
print(policy_text) # noqa: T201
poldir: Final = cfg.path.work / "policies"
poldir.mkdir(mode=0o755, exist_ok=True)
polsub: Final = poldir / sign_fpr
polsub.mkdir(mode=0o755, exist_ok=True)
(polsub / "origin.pol").write_text(policy_text, encoding="UTF-8")
shutil.copy2(keys.public_bin, polsub)
subprocess.check_call( # noqa: S603
[
cfg.prog.debsig_verify,
"-d",
"--policies-dir",
poldir,
"--keyrings-dir",
poldir,
"--list-policies",
pkg_signed,
],
cwd=cfg.path.work,
env=cfg.env,
)
subprocess.check_call( # noqa: S603
[
cfg.prog.debsig_verify,
"-d",
"--policies-dir",
poldir,
"--keyrings-dir",
poldir,
pkg_signed,
],
cwd=cfg.path.work,
env=cfg.env,
)
def test_sign_and_verify(test_cfg: util.ConfigAggr) -> None: # noqa: F811 # pytest fixture
"""Prepare the working directory, run the tests."""
if not test_cfg.has_all_features({"cmd-list": "1", "cmd-sign": "1", "i-gpg": "1"}):
pytest.skip("No `debsigs --list`, `--sign`, or GnuPG support")
with test_cfg.cfg_with_tempd() as cfg:
keys: Final = test_cfg.keys
pub_key: Final = test_cfg.pub_key
pkg_orig: Final = test_cfg.changes_orig.debs[0]
sign_key: Final = util.get_signing_subkey(pub_key)
sigs_empty: Final = util.debsigs_list(cfg, pkg_orig)
if sigs_empty:
raise RuntimeError(repr((pkg_orig, sigs_empty)))
pkg_signed: Final = _copy_and_sign_package(cfg, pkg_orig, "origin")
sigs_single_origin: Final = util.debsigs_list(cfg, pkg_signed)
match sigs_single_origin:
case [single] if single.sig_type == "origin" and single.key_id == sign_key.key_id:
pass
case _:
raise RuntimeError(repr((pkg_signed, sigs_single_origin, pub_key)))
_test_ar_sections(cfg, pkg_orig, pkg_signed)
_test_with_debsigs(test_cfg, cfg, pkg_signed)
_test_with_debsig_verify(cfg, keys, pkg_signed, sign_key.fpr)
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