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fix: add resources folder to the allowed roots as readonly

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This commit is contained in:
Ian Chua
2026-08-14 14:48:57 +08:00
parent d99f4c8164
commit f6f68573b6
4 changed files with 365 additions and 31 deletions
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tests/slic3rutils/test_plugin_audit.cpp
+146
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@@ -27,6 +27,16 @@ void seed_denied_names()
mgr.add_denied_filename(name);
}
// Seed the keyword registry with the same list install_hook() uses. Same rationale as
// seed_denied_names(): a process-singleton registry, seeded from the single shared source so
// production and tests cannot drift apart.
void seed_denied_keywords()
{
PluginAuditManager& mgr = PluginAuditManager::instance();
for (const auto& keyword : PluginAuditManager::default_denied_path_keywords())
mgr.add_denied_path_keyword(keyword);
}
} // namespace
TEST_CASE("Plugin audit denies app config and token filenames anywhere", "[audit]")
@@ -190,3 +200,139 @@ TEST_CASE("Plugin audit does not constrain non-plugin code", "[audit]")
CHECK(mgr.check_open(conf.string(), "w").allowed);
CHECK(mgr.check_open(conf.string(), "r").allowed);
}
TEST_CASE("Plugin audit denies secret/certificate/config-like paths by keyword", "[audit]")
{
seed_denied_keywords();
const PluginAuditManager& mgr = PluginAuditManager::instance();
SECTION("a 'secrets' directory component is denied")
{
CHECK(mgr.is_denied_path_keyword(fs::path("/plugin/secrets/api_key.json")));
CHECK(mgr.is_denied_path_keyword(fs::path("/plugin/secret/token.txt")));
}
SECTION("a 'certificate(s)' directory component is denied")
{
CHECK(mgr.is_denied_path_keyword(fs::path("/resources/cert/slicer_base64.cer")));
CHECK(mgr.is_denied_path_keyword(fs::path("/resources/certificates/ca.pem")));
}
SECTION("a 'conf'/'config' directory or file component is denied")
{
CHECK(mgr.is_denied_path_keyword(fs::path("/plugin/conf/settings.json")));
CHECK(mgr.is_denied_path_keyword(fs::path("/plugin/config/settings.json")));
CHECK(mgr.is_denied_path_keyword(fs::path("/plugin/plugin.conf")));
}
SECTION("matching is case-insensitive")
{
CHECK(mgr.is_denied_path_keyword(fs::path("/plugin/SECRETS/token.txt")));
CHECK(mgr.is_denied_path_keyword(fs::path("/resources/CertBundle/ca.pem")));
CHECK(mgr.is_denied_path_keyword(fs::path("/plugin/CONFIG.JSON")));
}
SECTION("matching is not limited to the base name -- any ancestor component counts")
{
CHECK(mgr.is_denied_path_keyword(fs::path("/data/secrets/nested/deep/file.txt")));
}
SECTION("an unrelated path is not denied")
{
CHECK_FALSE(mgr.is_denied_path_keyword(fs::path("/plugin/output/model.gcode")));
CHECK_FALSE(mgr.is_denied_path_keyword(fs::path("/plugin/storage/state.json")));
}
SECTION("an empty path is not denied")
{
CHECK_FALSE(mgr.is_denied_path_keyword(fs::path()));
}
}
TEST_CASE("Plugin audit is_denied_path combines the filename and keyword registries", "[audit]")
{
seed_denied_names();
seed_denied_keywords();
const PluginAuditManager& mgr = PluginAuditManager::instance();
SECTION("a filename-registry match is denied")
{
CHECK(mgr.is_denied_path(fs::path(SLIC3R_APP_KEY ".conf")));
}
SECTION("a keyword-registry match is denied")
{
CHECK(mgr.is_denied_path(fs::path("/plugin/secrets/token.txt")));
}
SECTION("a path matching neither registry is not denied")
{
CHECK_FALSE(mgr.is_denied_path(fs::path("/plugin/output/model.gcode")));
}
}
TEST_CASE("Plugin audit a read-only allowed root blocks writes but not reads", "[audit]")
{
ScopedDataDir data_dir_guard("plugin-audit-readonly");
ScopedResourcesDir resources_dir_guard("plugin-audit-readonly-resources");
seed_denied_names();
seed_denied_keywords();
PluginAuditManager& mgr = PluginAuditManager::instance();
mgr.add_global_allowed_root(resources_dir(), /*allow_write=*/false);
ScopedPluginAuditContext ctx("test_plugin", "");
const fs::path readonly_file = fs::path(resources_dir()) / "profiles" / "vendor.json";
SECTION("a read inside the read-only root is allowed")
{
CHECK(mgr.check_open(readonly_file.string(), "r").allowed);
}
SECTION("a write inside the read-only root is blocked")
{
AuditDecision decision = mgr.check_open(readonly_file.string(), "w");
CHECK_FALSE(decision.allowed);
CHECK(decision.reason == "outside allowed root");
}
SECTION("a create inside the read-only root is blocked")
{
AuditDecision decision = mgr.check_path_access(readonly_file, /*is_write=*/true);
CHECK_FALSE(decision.allowed);
}
SECTION("the bundled cert underneath the read-only root is denied even for reads")
{
const fs::path cert = fs::path(resources_dir()) / "cert" / "slicer_base64.cer";
AuditDecision decision = mgr.check_open(cert.string(), "r");
CHECK_FALSE(decision.allowed);
CHECK(decision.reason == "denied path keyword");
}
}
TEST_CASE("Plugin audit a scoped root can also be registered read-only", "[audit]")
{
ScopedDataDir data_dir_guard("plugin-audit-scoped-readonly");
seed_denied_names();
seed_denied_keywords();
PluginAuditManager& mgr = PluginAuditManager::instance();
const fs::path readonly_dir = fs::path(data_dir()) / "readonly_scope";
fs::create_directories(readonly_dir);
ScopedPluginAuditContext ctx("test_plugin", "");
mgr.add_scoped_allowed_root(readonly_dir, /*allow_write=*/false);
SECTION("a read inside the scoped read-only root is allowed")
{
CHECK(mgr.check_open((readonly_dir / "vendor.json").string(), "r").allowed);
}
SECTION("a write inside the scoped read-only root is blocked")
{
CHECK_FALSE(mgr.check_open((readonly_dir / "vendor.json").string(), "w").allowed);
}
}