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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/enterprise/content/clipboard_restriction_service.h"
#include "components/enterprise/content/pref_names.h"
#include "components/prefs/pref_registry_simple.h"
#include "components/prefs/testing_pref_service.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "url/gurl.h"
namespace {
const char kTestUrl[] = "https://www.example.com";
const char kTestPatternAllSubdomains[] = "example.com";
const char kTestPatternWildcard[] = "*";
const int kLargeDataSize = 1024;
} // namespace
class ClipboardRestrictionServiceTest : public testing::Test {
public:
ClipboardRestrictionService* service() { return service_.get(); }
protected:
void SetPolicy(std::optional<std::vector<std::string>> enable_patterns,
std::optional<std::vector<std::string>> disable_patterns,
int min_data_size = 100) {
base::Value::Dict pref_dict;
if (enable_patterns) {
base::Value::List enable_list;
for (auto& p : *enable_patterns) {
enable_list.Append(std::move(p));
}
pref_dict.Set("enable", std::move(enable_list));
}
if (disable_patterns) {
base::Value::List disable_list;
for (auto& p : *disable_patterns) {
disable_list.Append(std::move(p));
}
pref_dict.Set("disable", std::move(disable_list));
}
pref_dict.Set("minimum_data_size", min_data_size);
pref_service_.SetManagedPref(enterprise::content::kCopyPreventionSettings,
base::Value(std::move(pref_dict)));
}
void CreateService() {
service_ = std::unique_ptr<ClipboardRestrictionService>(
new ClipboardRestrictionService(&pref_service_));
}
private:
void SetUp() override {
pref_service_.registry()->RegisterDictionaryPref(
enterprise::content::kCopyPreventionSettings);
}
TestingPrefServiceSimple pref_service_;
std::unique_ptr<ClipboardRestrictionService> service_;
};
TEST_F(ClipboardRestrictionServiceTest, TestNoPolicySet) {
CreateService();
// All copies are allowed if the policy is unset.
EXPECT_TRUE(service()->IsUrlAllowedToCopy(GURL(kTestUrl), kLargeDataSize));
}
TEST_F(ClipboardRestrictionServiceTest, BlockPatternIfMatchingEnable) {
CreateService();
std::vector<std::string> patterns{kTestPatternAllSubdomains};
std::vector<std::string> empty_patterns{};
SetPolicy(patterns, empty_patterns);
EXPECT_FALSE(service()->IsUrlAllowedToCopy(GURL(kTestUrl), kLargeDataSize));
}
TEST_F(ClipboardRestrictionServiceTest, BlockPatternIfMatchingEnableWildcard) {
CreateService();
std::vector<std::string> patterns{kTestPatternWildcard};
std::vector<std::string> empty_patterns{};
SetPolicy(patterns, empty_patterns);
EXPECT_FALSE(service()->IsUrlAllowedToCopy(GURL(kTestUrl), kLargeDataSize));
}
TEST_F(ClipboardRestrictionServiceTest, DontBlockPatternIfMatchingDisable) {
CreateService();
std::vector<std::string> patterns{kTestPatternWildcard};
std::vector<std::string> empty_patterns{};
SetPolicy(empty_patterns, patterns);
EXPECT_TRUE(service()->IsUrlAllowedToCopy(GURL(kTestUrl), kLargeDataSize));
}
TEST_F(ClipboardRestrictionServiceTest, DontBlockPatternIfMatchingBoth) {
CreateService();
// The service's contract is that it blocks any copy for which the URL matches
// a pattern in the enable list AND doesn't match a pattern in the disable
// list. On the admin console side, admins only specify "ON by default" or
// "OFF by default" and a single list of exceptions, and the enable and
// disable lists are generated from that.
std::vector<std::string> wildcard_patterns{kTestPatternWildcard};
std::vector<std::string> subdomain_wildcard_pattern{
kTestPatternAllSubdomains};
SetPolicy(wildcard_patterns, subdomain_wildcard_pattern);
EXPECT_TRUE(service()->IsUrlAllowedToCopy(GURL(kTestUrl), kLargeDataSize));
}
TEST_F(ClipboardRestrictionServiceTest,
BlockPatternIfMatchingEnableAndDataSizeLargerThanMin) {
CreateService();
std::vector<std::string> patterns{kTestPatternAllSubdomains};
std::vector<std::string> empty_patterns{};
SetPolicy(patterns, empty_patterns, 10);
EXPECT_FALSE(service()->IsUrlAllowedToCopy(GURL(kTestUrl), 50));
}
TEST_F(ClipboardRestrictionServiceTest,
DontBlockPatternIfMatchingEnableAndDataSizeSmallerThanMin) {
CreateService();
std::vector<std::string> patterns{kTestPatternAllSubdomains};
std::vector<std::string> empty_patterns{};
SetPolicy(patterns, empty_patterns, 50);
EXPECT_TRUE(service()->IsUrlAllowedToCopy(GURL(kTestUrl), 10));
}
TEST_F(ClipboardRestrictionServiceTest,
DontBlockPatternIfMatchingEnableAndDataSizeSmallerThanDefaultMin) {
CreateService();
std::vector<std::string> patterns{kTestPatternAllSubdomains};
std::vector<std::string> empty_patterns{};
SetPolicy(patterns, empty_patterns);
EXPECT_TRUE(service()->IsUrlAllowedToCopy(GURL(kTestUrl), 10));
}
TEST_F(ClipboardRestrictionServiceTest, ServiceCreatedAfterPrefValueSet) {
std::vector<std::string> patterns{kTestPatternAllSubdomains};
std::vector<std::string> empty_patterns{};
SetPolicy(patterns, empty_patterns, 10);
CreateService();
EXPECT_FALSE(service()->IsUrlAllowedToCopy(GURL(kTestUrl), 50));
}
TEST_F(ClipboardRestrictionServiceTest, BlockPatternPopulatesMessage) {
CreateService();
std::vector<std::string> patterns{kTestPatternAllSubdomains};
std::vector<std::string> empty_patterns{};
SetPolicy(patterns, empty_patterns);
std::u16string message;
EXPECT_FALSE(
service()->IsUrlAllowedToCopy(GURL(kTestUrl), kLargeDataSize, &message));
EXPECT_FALSE(message.empty());
}
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