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// Copyright 2020 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/ash/net/network_diagnostics/fake_network_context.h"
#include <utility>
#include "base/logging.h"
#include "base/notreached.h"
#include "services/network/public/mojom/host_resolver.mojom.h"
namespace ash::network_diagnostics {
namespace {
// Represents a fake port number of a fake IP address.
const int kFakePortNumber = 1234;
// Returns a fake IP address.
net::IPEndPoint FakeIPAddress() {
return net::IPEndPoint(net::IPAddress::IPv4Localhost(), kFakePortNumber);
}
} // namespace
FakeNetworkContext::DnsResult::DnsResult(
int32_t result,
net::ResolveErrorInfo resolve_error_info,
std::optional<net::AddressList> resolved_addresses,
std::optional<net::HostResolverEndpointResults>
endpoint_results_with_metadata)
: result_(result),
resolve_error_info_(resolve_error_info),
resolved_addresses_(resolved_addresses),
endpoint_results_with_metadata_(endpoint_results_with_metadata) {}
FakeNetworkContext::DnsResult::~DnsResult() = default;
FakeNetworkContext::FakeNetworkContext() = default;
FakeNetworkContext::~FakeNetworkContext() = default;
void FakeNetworkContext::ResolveHost(
network::mojom::HostResolverHostPtr host,
const net::NetworkAnonymizationKey& network_anonymization_key,
network::mojom::ResolveHostParametersPtr optional_parameters,
mojo::PendingRemote<network::mojom::ResolveHostClient> response_client) {
if (host_resolution_disconnect_) {
response_client.reset();
return;
}
mojo::Remote<network::mojom::ResolveHostClient> rpc(
std::move(response_client));
if (fake_dns_result_) {
rpc->OnComplete(fake_dns_result_->result_,
fake_dns_result_->resolve_error_info_,
fake_dns_result_->resolved_addresses_,
fake_dns_result_->endpoint_results_with_metadata_);
} else {
CHECK(!fake_dns_results_.empty());
auto dns_result = std::move(fake_dns_results_.front());
fake_dns_results_.pop_front();
rpc->OnComplete(dns_result->result_, dns_result->resolve_error_info_,
dns_result->resolved_addresses_,
dns_result->endpoint_results_with_metadata_);
}
rpc.reset();
}
void FakeNetworkContext::CreateTCPConnectedSocket(
const std::optional<net::IPEndPoint>& local_addr,
const net::AddressList& remote_addr_list,
network::mojom::TCPConnectedSocketOptionsPtr tcp_connected_socket_options,
const net::MutableNetworkTrafficAnnotationTag& traffic_annotation,
mojo::PendingReceiver<network::mojom::TCPConnectedSocket> socket,
mojo::PendingRemote<network::mojom::SocketObserver> observer,
CreateTCPConnectedSocketCallback callback) {
if (tcp_connection_attempt_disconnect_) {
socket.reset();
return;
}
// Only bind the receiver if TCP connection is successful.
if (tcp_connect_code_ == net::OK) {
DCHECK(fake_tcp_connected_socket_);
fake_tcp_connected_socket_->BindReceiver(std::move(socket));
fake_tcp_connected_socket_->set_disconnect_during_tls_upgrade_attempt(
tls_upgrade_attempt_disconnect_);
}
std::move(callback).Run(tcp_connect_code_, FakeIPAddress(), FakeIPAddress(),
mojo::ScopedDataPipeConsumerHandle(),
mojo::ScopedDataPipeProducerHandle());
}
void FakeNetworkContext::CreateUDPSocket(
mojo::PendingReceiver<network::mojom::UDPSocket> receiver,
mojo::PendingRemote<network::mojom::UDPSocketListener> listener) {
if (udp_connection_attempt_disconnect_) {
receiver.reset();
listener.reset();
return;
}
// Bind the receiver if UDP connection is successful.
if (udp_connect_code_ == net::OK) {
DCHECK(fake_udp_socket_);
fake_udp_socket_->BindReceiver(std::move(receiver));
fake_udp_socket_->BindRemote(std::move(listener));
}
}
void FakeNetworkContext::SetTCPConnectCode(
std::optional<net::Error>& tcp_connect_code) {
if (tcp_connect_code.has_value()) {
tcp_connect_code_ = tcp_connect_code.value();
fake_tcp_connected_socket_ = std::make_unique<FakeTCPConnectedSocket>();
}
}
void FakeNetworkContext::SetTLSUpgradeCode(
std::optional<net::Error>& tls_upgrade_code) {
if (tls_upgrade_code.has_value()) {
DCHECK(fake_tcp_connected_socket_);
fake_tcp_connected_socket_->set_tls_upgrade_code(tls_upgrade_code.value());
}
}
void FakeNetworkContext::SetUdpConnectCode(net::Error udp_connect_code) {
fake_udp_socket_ = std::make_unique<FakeUdpSocket>();
fake_udp_socket_->set_udp_connect_code(udp_connect_code);
}
void FakeNetworkContext::SetUdpSendCode(net::Error udp_send_code) {
DCHECK(fake_udp_socket_);
fake_udp_socket_->set_udp_send_code(udp_send_code);
}
void FakeNetworkContext::SetDisconnectDuringUdpSendAttempt(bool disconnect) {
DCHECK(fake_udp_socket_);
fake_udp_socket_->set_disconnect_during_udp_send_attempt(disconnect);
}
void FakeNetworkContext::SetUdpOnReceivedCode(net::Error udp_on_received_code) {
DCHECK(fake_udp_socket_);
fake_udp_socket_->set_udp_on_received_code(udp_on_received_code);
}
void FakeNetworkContext::SetUdpOnReceivedData(
base::span<const uint8_t> udp_on_received_data) {
DCHECK(fake_udp_socket_);
fake_udp_socket_->set_udp_on_received_data(std::move(udp_on_received_data));
}
void FakeNetworkContext::SetDisconnectDuringUdpReceiveAttempt(bool disconnect) {
DCHECK(fake_udp_socket_);
fake_udp_socket_->set_disconnect_during_udp_receive_attempt(disconnect);
}
void FakeNetworkContext::SetTaskEnvironmentForTesting(
content::BrowserTaskEnvironment* task_environment) {
fake_udp_socket_->set_task_environment_for_testing(task_environment);
}
void FakeNetworkContext::SetUdpConnectionDelay(
base::TimeDelta connection_delay) {
fake_udp_socket_->set_udp_connection_delay(connection_delay);
}
void FakeNetworkContext::SetUdpSendDelay(base::TimeDelta send_delay) {
fake_udp_socket_->set_udp_send_delay(send_delay);
}
void FakeNetworkContext::SetUdpReceiveDelay(base::TimeDelta receive_delay) {
fake_udp_socket_->set_udp_receive_delay(receive_delay);
}
} // namespace ash::network_diagnostics
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