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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/net/dns_probe_test_util.h"
#include <stdint.h>
#include <utility>
#include "chrome/browser/net/dns_probe_runner.h"
#include "net/base/ip_address.h"
#include "net/base/network_anonymization_key.h"
#include "net/dns/public/resolve_error_info.h"
#include "services/network/public/mojom/clear_data_filter.mojom.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace chrome_browser_net {
namespace {
static std::optional<net::AddressList> AddressListForResponse(
FakeHostResolver::Response response) {
std::optional<net::AddressList> resolved_addresses;
switch (response) {
case FakeHostResolver::kNoResponse:
break;
case FakeHostResolver::kEmptyResponse:
resolved_addresses = net::AddressList();
break;
case FakeHostResolver::kOneAddressResponse:
resolved_addresses =
net::AddressList(net::IPEndPoint(net::IPAddress(192, 168, 1, 1), 0));
break;
}
return resolved_addresses;
}
} // namespace
FakeHostResolver::SingleResult::SingleResult(
int32_t result,
net::ResolveErrorInfo resolve_error_info,
Response response)
: result(result),
resolve_error_info(resolve_error_info),
response(response) {
DCHECK(result == net::OK || result == net::ERR_NAME_NOT_RESOLVED);
}
FakeHostResolver::FakeHostResolver(
mojo::PendingReceiver<network::mojom::HostResolver> resolver_receiver,
std::vector<SingleResult> result_list)
: receiver_(this, std::move(resolver_receiver)),
result_list_(result_list) {}
FakeHostResolver::FakeHostResolver(
mojo::PendingReceiver<network::mojom::HostResolver> resolver_receiver,
int32_t result,
net::ResolveErrorInfo resolve_error_info,
Response response)
: FakeHostResolver(std::move(resolver_receiver),
{SingleResult(result, resolve_error_info, response)}) {}
FakeHostResolver::~FakeHostResolver() = default;
void FakeHostResolver::ResolveHost(
network::mojom::HostResolverHostPtr host,
const net::NetworkAnonymizationKey& network_anonymization_key,
network::mojom::ResolveHostParametersPtr optional_parameters,
mojo::PendingRemote<network::mojom::ResolveHostClient>
pending_response_client) {
EXPECT_TRUE(network_anonymization_key.IsTransient());
const SingleResult& cur_result = result_list_[next_result_];
if (next_result_ + 1 < result_list_.size())
next_result_++;
mojo::Remote<network::mojom::ResolveHostClient> response_client(
std::move(pending_response_client));
response_client->OnComplete(cur_result.result, cur_result.resolve_error_info,
AddressListForResponse(cur_result.response),
/*endpoint_results_with_metadata=*/std::nullopt);
}
void FakeHostResolver::MdnsListen(
const net::HostPortPair& host,
net::DnsQueryType query_type,
mojo::PendingRemote<network::mojom::MdnsListenClient> response_client,
MdnsListenCallback callback) {
NOTREACHED();
}
HangingHostResolver::HangingHostResolver(
mojo::PendingReceiver<network::mojom::HostResolver> resolver_receiver)
: receiver_(this, std::move(resolver_receiver)) {}
HangingHostResolver::~HangingHostResolver() = default;
void HangingHostResolver::ResolveHost(
network::mojom::HostResolverHostPtr host,
const net::NetworkAnonymizationKey& network_anonymization_key,
network::mojom::ResolveHostParametersPtr optional_parameters,
mojo::PendingRemote<network::mojom::ResolveHostClient> response_client) {
EXPECT_TRUE(network_anonymization_key.IsTransient());
// Intentionally do not call response_client->OnComplete, but hang onto the
// |response_client| since destroying that also causes the mojo
// set_connection_error_handler handler to be called.
response_client_.Bind(std::move(response_client));
}
void HangingHostResolver::MdnsListen(
const net::HostPortPair& host,
net::DnsQueryType query_type,
mojo::PendingRemote<network::mojom::MdnsListenClient> response_client,
MdnsListenCallback callback) {
NOTREACHED();
}
FakeHostResolverNetworkContext::FakeHostResolverNetworkContext(
std::vector<FakeHostResolver::SingleResult> current_config_result_list,
std::vector<FakeHostResolver::SingleResult> google_config_result_list)
: current_config_result_list_(std::move(current_config_result_list)),
google_config_result_list_(std::move(google_config_result_list)) {}
FakeHostResolverNetworkContext::~FakeHostResolverNetworkContext() = default;
void FakeHostResolverNetworkContext::CreateHostResolver(
const std::optional<net::DnsConfigOverrides>& config_overrides,
mojo::PendingReceiver<network::mojom::HostResolver> receiver) {
ASSERT_TRUE(config_overrides);
if (!config_overrides->nameservers) {
if (!current_config_resolver_) {
current_config_resolver_ = std::make_unique<FakeHostResolver>(
std::move(receiver), current_config_result_list_);
}
} else {
if (!google_config_resolver_) {
google_config_resolver_ = std::make_unique<FakeHostResolver>(
std::move(receiver), google_config_result_list_);
}
}
}
HangingHostResolverNetworkContext::HangingHostResolverNetworkContext() =
default;
HangingHostResolverNetworkContext::~HangingHostResolverNetworkContext() =
default;
void HangingHostResolverNetworkContext::CreateHostResolver(
const std::optional<net::DnsConfigOverrides>& config_overrides,
mojo::PendingReceiver<network::mojom::HostResolver> receiver) {
resolver_ = std::make_unique<HangingHostResolver>(std::move(receiver));
}
FakeDnsConfigChangeManager::FakeDnsConfigChangeManager(
mojo::PendingReceiver<network::mojom::DnsConfigChangeManager> receiver)
: receiver_(this, std::move(receiver)) {}
FakeDnsConfigChangeManager::~FakeDnsConfigChangeManager() = default;
void FakeDnsConfigChangeManager::RequestNotifications(
mojo::PendingRemote<network::mojom::DnsConfigChangeManagerClient> client) {
ASSERT_FALSE(client_);
client_.Bind(std::move(client));
}
void FakeDnsConfigChangeManager::SimulateDnsConfigChange() {
ASSERT_TRUE(client_);
client_->OnDnsConfigChanged();
}
} // namespace chrome_browser_net
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