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// Copyright 2025 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/ip_protection/common/probabilistic_reveal_token_registry.h"
#include <optional>
#include <utility>
#include "base/check.h"
#include "base/json/json_reader.h"
#include "base/test/scoped_feature_list.h"
#include "base/values.h"
#include "net/base/features.h"
#include "testing/gmock/include/gmock/gmock-matchers.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "url/gurl.h"
namespace ip_protection {
namespace {
base::Value::Dict CreateRegistryFromJson(const std::string& json_content) {
std::optional<base::Value> json =
base::JSONReader::Read(json_content, base::JSON_ALLOW_TRAILING_COMMAS);
CHECK(json.has_value());
base::Value::Dict* json_dict = json->GetIfDict();
CHECK(json_dict);
return std::move(*json_dict);
}
} // namespace
class ProbabilisticRevealTokenRegistryTest : public testing::Test {
public:
ProbabilisticRevealTokenRegistryTest() = default;
protected:
ProbabilisticRevealTokenRegistry registry_;
};
TEST_F(ProbabilisticRevealTokenRegistryTest, RegistryTest) {
// Set the initial registry.
registry_.UpdateRegistry(CreateRegistryFromJson(R"json({
"domains": [
"example.com",
"other.com",
]
})json"));
EXPECT_TRUE(registry_.IsRegistered(GURL("https://example.com")));
EXPECT_TRUE(registry_.IsRegistered(GURL("http://example.com")));
EXPECT_TRUE(registry_.IsRegistered(GURL("https://example.com.")));
EXPECT_TRUE(registry_.IsRegistered(GURL("https://..example.com")));
EXPECT_TRUE(registry_.IsRegistered(GURL("https://example.com/file.html")));
EXPECT_TRUE(registry_.IsRegistered(GURL("https://example.com/some/path")));
EXPECT_TRUE(registry_.IsRegistered(GURL("https://foo.example.com")));
EXPECT_TRUE(registry_.IsRegistered(GURL("https://foo.bar.example.com")));
EXPECT_TRUE(registry_.IsRegistered(GURL("https://other.com")));
EXPECT_TRUE(registry_.IsRegistered(GURL("https://OTHER.com")));
EXPECT_FALSE(registry_.IsRegistered(GURL("https://foo.com")));
EXPECT_FALSE(registry_.IsRegistered(GURL("https://example.foo.com")));
EXPECT_FALSE(registry_.IsRegistered(GURL("https://example.com..")));
EXPECT_FALSE(registry_.IsRegistered(GURL("file:///example.com")));
EXPECT_FALSE(registry_.IsRegistered(GURL("https://example/file.html")));
EXPECT_FALSE(registry_.IsRegistered(GURL("not-a-url")));
EXPECT_FALSE(registry_.IsRegistered(GURL()));
// Update the registry, which should clear the previous entries.
registry_.UpdateRegistry(CreateRegistryFromJson(R"json({
"domains": [
"foo.com",
]
})json"));
EXPECT_FALSE(registry_.IsRegistered(GURL("https://example.com")));
EXPECT_FALSE(registry_.IsRegistered(GURL("https://other.com")));
EXPECT_TRUE(registry_.IsRegistered(GURL("https://foo.com")));
EXPECT_TRUE(registry_.IsRegistered(GURL("https://example.foo.com")));
// IP addresses and eTLDs are not valid entries.
registry_.UpdateRegistry(CreateRegistryFromJson(R"json({
"domains": [
"192.168.0.1",
"com",
"co.uk",
]
})json"));
EXPECT_FALSE(registry_.IsRegistered(GURL("http://192.168.0.1/file.html")));
EXPECT_FALSE(registry_.IsRegistered(GURL("http://com")));
EXPECT_FALSE(registry_.IsRegistered(GURL("http://.com")));
EXPECT_FALSE(registry_.IsRegistered(GURL("http://example.com")));
EXPECT_FALSE(registry_.IsRegistered(GURL("http://example.co.uk")));
// Error cases, where the given Dict is not in the expected format. Should
// retult in an empty registry.
// Update with an empty object.
registry_.UpdateRegistry(CreateRegistryFromJson(R"json({})json"));
EXPECT_FALSE(registry_.IsRegistered(GURL("https://foo.com")));
// Update where "domains" is not a list.
registry_.UpdateRegistry(CreateRegistryFromJson(R"json({
"domains": {
"foo.com": true
}
})json"));
EXPECT_FALSE(registry_.IsRegistered(GURL("https://foo.com")));
// Update where the "domains" entries are not strings.
registry_.UpdateRegistry(CreateRegistryFromJson(R"json({
"domains": [
{ "foo.com": true }
]
})json"));
EXPECT_FALSE(registry_.IsRegistered(GURL("https://foo.com")));
}
TEST_F(ProbabilisticRevealTokenRegistryTest, CustomRegistryTest) {
// Set the custom registry feature param.
std::map<std::string, std::string> parameters;
parameters[net::features::kUseCustomProbabilisticRevealTokenRegistry.name] =
"true";
parameters[net::features::kCustomProbabilisticRevealTokenRegistry.name] =
"test.com,other.com";
base::test::ScopedFeatureList scoped_feature_list;
scoped_feature_list.InitAndEnableFeatureWithParameters(
net::features::kEnableProbabilisticRevealTokens, std::move(parameters));
// Set the standard registry.
ProbabilisticRevealTokenRegistry registry;
registry.UpdateRegistry(CreateRegistryFromJson(R"json({
"domains": [
"example.com"
]
})json"));
EXPECT_FALSE(registry.IsRegistered(GURL("https://example.com")));
EXPECT_TRUE(registry.IsRegistered(GURL("https://test.com")));
EXPECT_TRUE(registry.IsRegistered(GURL("https://foo.test.com")));
EXPECT_TRUE(registry.IsRegistered(GURL("https://other.com")));
EXPECT_FALSE(registry.IsRegistered(GURL("https://foo.com")));
}
} // namespace ip_protection
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