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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/policy/core/common/policy_loader_common.h"
#include <algorithm>
#include "base/json/json_reader.h"
#include "base/logging.h"
#include "base/values.h"
#include "components/policy/core/common/policy_map.h"
#include "components/policy/core/common/policy_types.h"
#include "components/policy/policy_constants.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace policy {
namespace {
base::Value::List ToList(const std::vector<std::string>& values) {
base::Value::List storage;
storage.reserve(values.size());
for (const auto& value : values)
storage.Append(value);
return storage;
}
base::Value::Dict ToDict(const std::string& json) {
return base::JSONReader::Read(json).value().TakeDict();
}
} // namespace
class SensitivePolicyFilterTest : public ::testing::Test {
public:
void AddNewPolicy(const std::string& name, base::Value value) {
policies_.Set(name, PolicyLevel::POLICY_LEVEL_MANDATORY,
PolicyScope::POLICY_SCOPE_MACHINE,
PolicySource::POLICY_SOURCE_PLATFORM, std::move(value),
nullptr);
}
PolicyMap* policies() { return &policies_; }
private:
PolicyMap policies_;
};
TEST_F(SensitivePolicyFilterTest, TestSimplePolicyFilter) {
AddNewPolicy(key::kHomepageLocation, base::Value("https://example.com"));
AddNewPolicy(key::kBrowserSignin, base::Value(2));
EXPECT_TRUE(policies()->Get(key::kHomepageLocation));
EXPECT_TRUE(policies()->Get(key::kBrowserSignin));
FilterSensitivePolicies(policies());
EXPECT_FALSE(policies()->Get(key::kHomepageLocation));
EXPECT_TRUE(policies()->Get(key::kBrowserSignin));
}
TEST_F(SensitivePolicyFilterTest, TestExtensionInstallForceListFilter) {
base::Value::List policy =
ToList({"extension0", "extension1;example.com", "extension2;",
"extension3;https://clients2.google.com/service/update2/crx"});
AddNewPolicy(key::kExtensionInstallForcelist, base::Value(std::move(policy)));
EXPECT_TRUE(policies()->Get(key::kExtensionInstallForcelist));
FilterSensitivePolicies(policies());
const auto* actual_filtered_policy = policies()->GetValue(
key::kExtensionInstallForcelist, base::Value::Type::LIST);
ASSERT_TRUE(actual_filtered_policy);
base::Value::List expected_filtered_policy = ToList(
{"extension0", "[BLOCKED]extension1;example.com", "[BLOCKED]extension2;",
"extension3;https://clients2.google.com/service/update2/crx"});
EXPECT_EQ(expected_filtered_policy, *actual_filtered_policy);
}
TEST_F(SensitivePolicyFilterTest, TestExtensionSettingsFilter) {
base::Value::Dict policy = ToDict(R"({
"*": {
"installation_mode": "force_installed",
"update_url": "https://example.com"
},
"extension0": {
"installation_mode": "blocked",
"update_url": "https://example.com"
},
"extension1": {
"update_url": "https://example.com"
},
"extension2": {
"installation_mode": "force_installed"
},
"extension3": {
"installation_mode": "force_installed",
"update_url": "https://clients2.google.com/service/update2/crx"
},
"extension4": {
"installation_mode": "force_installed",
"update_url": "https://example.com"
},
"extension5": {
"installation_mode": "normal_installed",
"update_url": "https://example.com"
},
"invalid": "settings"
})");
AddNewPolicy(key::kExtensionSettings, base::Value(policy.Clone()));
EXPECT_TRUE(policies()->Get(key::kExtensionSettings));
FilterSensitivePolicies(policies());
const base::Value::Dict& filtered_policy =
policies()
->GetValue(key::kExtensionSettings, base::Value::Type::DICT)
->GetDict();
EXPECT_EQ(policy.size(), filtered_policy.size());
for (const auto entry : policy) {
std::string extension = entry.first;
if (extension == "extension4" || extension == "extension5")
extension = "[BLOCKED]" + extension;
const base::Value* filtered_setting = filtered_policy.Find(extension);
ASSERT_TRUE(filtered_setting);
EXPECT_EQ(entry.second, *filtered_setting)
<< "Mismatch for extension: " + extension;
}
}
} // namespace policy
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