blob: ceed1b4e0db29b988f50baf129248db1fe383bac [file] [log] [blame]
// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/socket/transport_connect_job.h"
#include <memory>
#include <string>
#include <vector>
#include "base/memory/ref_counted.h"
#include "base/test/scoped_feature_list.h"
#include "base/test/task_environment.h"
#include "net/base/address_family.h"
#include "net/base/features.h"
#include "net/base/host_port_pair.h"
#include "net/base/ip_address.h"
#include "net/base/ip_endpoint.h"
#include "net/base/net_errors.h"
#include "net/cert/mock_cert_verifier.h"
#include "net/dns/mock_host_resolver.h"
#include "net/dns/public/secure_dns_policy.h"
#include "net/http/transport_security_state.h"
#include "net/log/net_log.h"
#include "net/socket/connect_job_test_util.h"
#include "net/socket/connection_attempts.h"
#include "net/socket/ssl_client_socket.h"
#include "net/socket/stream_socket.h"
#include "net/socket/transport_client_socket_pool_test_util.h"
#include "net/ssl/ssl_config_service.h"
#include "net/ssl/test_ssl_config_service.h"
#include "net/test/gtest_util.h"
#include "net/test/test_with_task_environment.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "url/scheme_host_port.h"
#include "url/url_constants.h"
namespace net {
namespace {
const char kHostName[] = "unresolvable.host.name";
IPAddress ParseIP(const std::string& ip) {
IPAddress address;
CHECK(address.AssignFromIPLiteral(ip));
return address;
}
class TransportConnectJobTest : public WithTaskEnvironment,
public testing::Test {
public:
TransportConnectJobTest()
: WithTaskEnvironment(base::test::TaskEnvironment::TimeSource::MOCK_TIME),
client_socket_factory_(NetLog::Get()),
common_connect_job_params_(
&client_socket_factory_,
&host_resolver_,
/*http_auth_cache=*/nullptr,
/*http_auth_handler_factory=*/nullptr,
/*spdy_session_pool=*/nullptr,
/*quic_supported_versions=*/nullptr,
/*quic_session_pool=*/nullptr,
/*proxy_delegate=*/nullptr,
/*http_user_agent_settings=*/nullptr,
&ssl_client_context_,
/*socket_performance_watcher_factory=*/nullptr,
/*network_quality_estimator=*/nullptr,
NetLog::Get(),
/*websocket_endpoint_lock_manager=*/nullptr,
/*http_server_properties=*/nullptr,
/*alpn_protos=*/nullptr,
/*application_settings=*/nullptr,
/*ignore_certificate_errors=*/nullptr,
/*early_data_enabled=*/nullptr) {}
~TransportConnectJobTest() override = default;
static scoped_refptr<TransportSocketParams> DefaultParams() {
return base::MakeRefCounted<TransportSocketParams>(
url::SchemeHostPort(url::kHttpScheme, kHostName, 80),
NetworkAnonymizationKey(), SecureDnsPolicy::kAllow,
OnHostResolutionCallback(),
/*supported_alpns=*/base::flat_set<std::string>());
}
static scoped_refptr<TransportSocketParams> DefaultHttpsParams() {
return base::MakeRefCounted<TransportSocketParams>(
url::SchemeHostPort(url::kHttpsScheme, kHostName, 443),
NetworkAnonymizationKey(), SecureDnsPolicy::kAllow,
OnHostResolutionCallback(),
/*supported_alpns=*/base::flat_set<std::string>{"h2", "http/1.1"});
}
protected:
MockHostResolver host_resolver_{/*default_result=*/MockHostResolverBase::
RuleResolver::GetLocalhostResult()};
MockTransportClientSocketFactory client_socket_factory_;
TestSSLConfigService ssl_config_service_{SSLContextConfig{}};
MockCertVerifier cert_verifier_;
TransportSecurityState transport_security_state_;
SSLClientContext ssl_client_context_{&ssl_config_service_, &cert_verifier_,
&transport_security_state_,
/*ssl_client_session_cache=*/nullptr,
/*sct_auditing_delegate=*/nullptr};
const CommonConnectJobParams common_connect_job_params_;
};
TEST_F(TransportConnectJobTest, HostResolutionFailure) {
host_resolver_.rules()->AddSimulatedTimeoutFailure(kHostName);
// Check sync and async failures.
for (bool host_resolution_synchronous : {false, true}) {
host_resolver_.set_synchronous_mode(host_resolution_synchronous);
TestConnectJobDelegate test_delegate;
TransportConnectJob transport_connect_job(
DEFAULT_PRIORITY, SocketTag(), &common_connect_job_params_,
DefaultParams(), &test_delegate, nullptr /* net_log */);
test_delegate.StartJobExpectingResult(&transport_connect_job,
ERR_NAME_NOT_RESOLVED,
host_resolution_synchronous);
EXPECT_THAT(transport_connect_job.GetResolveErrorInfo().error,
test::IsError(ERR_DNS_TIMED_OUT));
}
}
TEST_F(TransportConnectJobTest, ConnectionFailure) {
for (bool host_resolution_synchronous : {false, true}) {
for (bool connection_synchronous : {false, true}) {
host_resolver_.set_synchronous_mode(host_resolution_synchronous);
client_socket_factory_.set_default_client_socket_type(
connection_synchronous
? MockTransportClientSocketFactory::Type::kFailing
: MockTransportClientSocketFactory::Type::kPendingFailing);
TestConnectJobDelegate test_delegate;
TransportConnectJob transport_connect_job(
DEFAULT_PRIORITY, SocketTag(), &common_connect_job_params_,
DefaultParams(), &test_delegate, nullptr /* net_log */);
test_delegate.StartJobExpectingResult(
&transport_connect_job, ERR_CONNECTION_FAILED,
host_resolution_synchronous && connection_synchronous);
}
}
}
TEST_F(TransportConnectJobTest, HostResolutionTimeout) {
const base::TimeDelta kTinyTime = base::Microseconds(1);
// Make request hang.
host_resolver_.set_ondemand_mode(true);
TestConnectJobDelegate test_delegate;
TransportConnectJob transport_connect_job(
DEFAULT_PRIORITY, SocketTag(), &common_connect_job_params_,
DefaultParams(), &test_delegate, nullptr /* net_log */);
ASSERT_THAT(transport_connect_job.Connect(), test::IsError(ERR_IO_PENDING));
// Right up until just before expiration, the job does not time out.
FastForwardBy(TransportConnectJob::ConnectionTimeout() - kTinyTime);
EXPECT_FALSE(test_delegate.has_result());
// But at the exact time of expiration, the job fails.
FastForwardBy(kTinyTime);
EXPECT_TRUE(test_delegate.has_result());
EXPECT_THAT(test_delegate.WaitForResult(), test::IsError(ERR_TIMED_OUT));
}
TEST_F(TransportConnectJobTest, ConnectionTimeout) {
const base::TimeDelta kTinyTime = base::Microseconds(1);
// Half the timeout time. In the async case, spend half the time waiting on
// host resolution, half on connecting.
const base::TimeDelta kFirstHalfOfTimeout =
TransportConnectJob::ConnectionTimeout() / 2;
const base::TimeDelta kSecondHalfOfTimeout =
TransportConnectJob::ConnectionTimeout() - kFirstHalfOfTimeout;
ASSERT_LE(kTinyTime, kSecondHalfOfTimeout);
// Make connection attempts hang.
client_socket_factory_.set_default_client_socket_type(
MockTransportClientSocketFactory::Type::kStalled);
for (bool host_resolution_synchronous : {false, true}) {
host_resolver_.set_ondemand_mode(!host_resolution_synchronous);
TestConnectJobDelegate test_delegate;
TransportConnectJob transport_connect_job(
DEFAULT_PRIORITY, SocketTag(), &common_connect_job_params_,
DefaultParams(), &test_delegate, nullptr /* net_log */);
EXPECT_THAT(transport_connect_job.Connect(), test::IsError(ERR_IO_PENDING));
// After half the timeout, connection does not timeout.
FastForwardBy(kFirstHalfOfTimeout);
EXPECT_FALSE(test_delegate.has_result());
// In the async case, the host resolution completes now.
if (!host_resolution_synchronous) {
host_resolver_.ResolveOnlyRequestNow();
}
// After (almost) the second half of timeout, just before the full timeout
// period, the ConnectJob is still live.
FastForwardBy(kSecondHalfOfTimeout - kTinyTime);
EXPECT_FALSE(test_delegate.has_result());
// But at the exact timeout time, the job fails.
FastForwardBy(kTinyTime);
EXPECT_TRUE(test_delegate.has_result());
EXPECT_THAT(test_delegate.WaitForResult(), test::IsError(ERR_TIMED_OUT));
}
}
TEST_F(TransportConnectJobTest, ConnectionSuccess) {
for (bool host_resolution_synchronous : {false, true}) {
for (bool connection_synchronous : {false, true}) {
host_resolver_.set_synchronous_mode(host_resolution_synchronous);
client_socket_factory_.set_default_client_socket_type(
connection_synchronous
? MockTransportClientSocketFactory::Type::kSynchronous
: MockTransportClientSocketFactory::Type::kPending);
TestConnectJobDelegate test_delegate;
TransportConnectJob transport_connect_job(
DEFAULT_PRIORITY, SocketTag(), &common_connect_job_params_,
DefaultParams(), &test_delegate, nullptr /* net_log */);
test_delegate.StartJobExpectingResult(
&transport_connect_job, OK,
host_resolution_synchronous && connection_synchronous);
}
}
}
TEST_F(TransportConnectJobTest, LoadState) {
client_socket_factory_.set_default_client_socket_type(
MockTransportClientSocketFactory::Type::kStalled);
host_resolver_.set_ondemand_mode(true);
host_resolver_.rules()->AddIPLiteralRule(kHostName, "1:abcd::3:4:ff,1.1.1.1",
std::string());
TestConnectJobDelegate test_delegate;
TransportConnectJob transport_connect_job(
DEFAULT_PRIORITY, SocketTag(), &common_connect_job_params_,
DefaultParams(), &test_delegate, /*net_log=*/nullptr);
EXPECT_THAT(transport_connect_job.Connect(), test::IsError(ERR_IO_PENDING));
// The job is initially waiting on DNS.
EXPECT_EQ(transport_connect_job.GetLoadState(), LOAD_STATE_RESOLVING_HOST);
// Complete DNS. It is now waiting on a TCP connection.
host_resolver_.ResolveOnlyRequestNow();
RunUntilIdle();
EXPECT_EQ(transport_connect_job.GetLoadState(), LOAD_STATE_CONNECTING);
// Wait for the IPv4 job to start. The job is still waiting on a TCP
// connection.
FastForwardBy(TransportConnectJob::kIPv6FallbackTime +
base::Milliseconds(50));
EXPECT_EQ(transport_connect_job.GetLoadState(), LOAD_STATE_CONNECTING);
}
// TODO(crbug.com/1206799): Set up `host_resolver_` to require the expected
// scheme.
TEST_F(TransportConnectJobTest, HandlesHttpsEndpoint) {
TestConnectJobDelegate test_delegate;
TransportConnectJob transport_connect_job(
DEFAULT_PRIORITY, SocketTag(), &common_connect_job_params_,
base::MakeRefCounted<TransportSocketParams>(
url::SchemeHostPort(url::kHttpsScheme, kHostName, 80),
NetworkAnonymizationKey(), SecureDnsPolicy::kAllow,
OnHostResolutionCallback(),
/*supported_alpns=*/base::flat_set<std::string>{"h2", "http/1.1"}),
&test_delegate, nullptr /* net_log */);
test_delegate.StartJobExpectingResult(&transport_connect_job, OK,
false /* expect_sync_result */);
}
// TODO(crbug.com/1206799): Set up `host_resolver_` to require the expected
// lack of scheme.
TEST_F(TransportConnectJobTest, HandlesNonStandardEndpoint) {
TestConnectJobDelegate test_delegate;
TransportConnectJob transport_connect_job(
DEFAULT_PRIORITY, SocketTag(), &common_connect_job_params_,
base::MakeRefCounted<TransportSocketParams>(
HostPortPair(kHostName, 80), NetworkAnonymizationKey(),
SecureDnsPolicy::kAllow, OnHostResolutionCallback(),
/*supported_alpns=*/base::flat_set<std::string>()),
&test_delegate, nullptr /* net_log */);
test_delegate.StartJobExpectingResult(&transport_connect_job, OK,
false /* expect_sync_result */);
}
TEST_F(TransportConnectJobTest, SecureDnsPolicy) {
for (auto secure_dns_policy :
{SecureDnsPolicy::kAllow, SecureDnsPolicy::kDisable}) {
TestConnectJobDelegate test_delegate;
TransportConnectJob transport_connect_job(
DEFAULT_PRIORITY, SocketTag(), &common_connect_job_params_,
base::MakeRefCounted<TransportSocketParams>(
url::SchemeHostPort(url::kHttpScheme, kHostName, 80),
NetworkAnonymizationKey(), secure_dns_policy,
OnHostResolutionCallback(),
/*supported_alpns=*/base::flat_set<std::string>{}),
&test_delegate, nullptr /* net_log */);
test_delegate.StartJobExpectingResult(&transport_connect_job, OK,
false /* expect_sync_result */);
EXPECT_EQ(secure_dns_policy, host_resolver_.last_secure_dns_policy());
}
}
// Test the case of the IPv6 address stalling, and falling back to the IPv4
// socket which finishes first.
TEST_F(TransportConnectJobTest, IPv6FallbackSocketIPv4FinishesFirst) {
MockTransportClientSocketFactory::Rule rules[] = {
// The first IPv6 attempt fails.
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kFailing,
std::vector{IPEndPoint(ParseIP("1:abcd::3:4:ff"), 80)}),
// The second IPv6 attempt stalls.
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kStalled,
std::vector{IPEndPoint(ParseIP("2:abcd::3:4:ff"), 80)}),
// After a timeout, we try the IPv4 address.
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kPending,
std::vector{IPEndPoint(ParseIP("2.2.2.2"), 80)})};
client_socket_factory_.SetRules(rules);
// Resolve an AddressList with two IPv6 addresses and then a IPv4 address.
host_resolver_.rules()->AddIPLiteralRule(
kHostName, "1:abcd::3:4:ff,2:abcd::3:4:ff,2.2.2.2", std::string());
TestConnectJobDelegate test_delegate;
TransportConnectJob transport_connect_job(
DEFAULT_PRIORITY, SocketTag(), &common_connect_job_params_,
DefaultParams(), &test_delegate, nullptr /* net_log */);
test_delegate.StartJobExpectingResult(&transport_connect_job, OK,
false /* expect_sync_result */);
IPEndPoint endpoint;
test_delegate.socket()->GetLocalAddress(&endpoint);
EXPECT_TRUE(endpoint.address().IsIPv4());
// Check that the failed connection attempt is collected.
ConnectionAttempts attempts = transport_connect_job.GetConnectionAttempts();
ASSERT_EQ(1u, attempts.size());
EXPECT_THAT(attempts[0].result, test::IsError(ERR_CONNECTION_FAILED));
EXPECT_EQ(attempts[0].endpoint, IPEndPoint(ParseIP("1:abcd::3:4:ff"), 80));
EXPECT_EQ(3, client_socket_factory_.allocation_count());
}
// Test the case of the IPv6 address being slow, thus falling back to trying to
// connect to the IPv4 address, but having the connect to the IPv6 address
// finish first.
TEST_F(TransportConnectJobTest, IPv6FallbackSocketIPv6FinishesFirst) {
MockTransportClientSocketFactory::Rule rules[] = {
// The first IPv6 attempt ultimately succeeds, but is delayed.
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kDelayed,
std::vector{IPEndPoint(ParseIP("2:abcd::3:4:ff"), 80)}),
// The first IPv4 attempt fails.
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kFailing,
std::vector{IPEndPoint(ParseIP("2.2.2.2"), 80)}),
// The second IPv4 attempt stalls.
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kStalled,
std::vector{IPEndPoint(ParseIP("3.3.3.3"), 80)})};
client_socket_factory_.SetRules(rules);
client_socket_factory_.set_delay(TransportConnectJob::kIPv6FallbackTime +
base::Milliseconds(50));
// Resolve an AddressList with a IPv6 address first and then a IPv4 address.
host_resolver_.rules()->AddIPLiteralRule(
kHostName, "2:abcd::3:4:ff,2.2.2.2,3.3.3.3", std::string());
TestConnectJobDelegate test_delegate;
TransportConnectJob transport_connect_job(
DEFAULT_PRIORITY, SocketTag(), &common_connect_job_params_,
DefaultParams(), &test_delegate, nullptr /* net_log */);
test_delegate.StartJobExpectingResult(&transport_connect_job, OK,
false /* expect_sync_result */);
IPEndPoint endpoint;
test_delegate.socket()->GetLocalAddress(&endpoint);
EXPECT_TRUE(endpoint.address().IsIPv6());
// Check that the failed connection attempt on the fallback socket is
// collected.
ConnectionAttempts attempts = transport_connect_job.GetConnectionAttempts();
ASSERT_EQ(1u, attempts.size());
EXPECT_THAT(attempts[0].result, test::IsError(ERR_CONNECTION_FAILED));
EXPECT_EQ(attempts[0].endpoint, IPEndPoint(ParseIP("2.2.2.2"), 80));
EXPECT_EQ(3, client_socket_factory_.allocation_count());
}
TEST_F(TransportConnectJobTest, IPv6NoIPv4AddressesToFallbackTo) {
client_socket_factory_.set_default_client_socket_type(
MockTransportClientSocketFactory::Type::kDelayed);
// Resolve an AddressList with only IPv6 addresses.
host_resolver_.rules()->AddIPLiteralRule(
kHostName, "2:abcd::3:4:ff,3:abcd::3:4:ff", std::string());
TestConnectJobDelegate test_delegate;
TransportConnectJob transport_connect_job(
DEFAULT_PRIORITY, SocketTag(), &common_connect_job_params_,
DefaultParams(), &test_delegate, nullptr /* net_log */);
test_delegate.StartJobExpectingResult(&transport_connect_job, OK,
false /* expect_sync_result */);
IPEndPoint endpoint;
test_delegate.socket()->GetLocalAddress(&endpoint);
EXPECT_TRUE(endpoint.address().IsIPv6());
ConnectionAttempts attempts = transport_connect_job.GetConnectionAttempts();
EXPECT_EQ(0u, attempts.size());
EXPECT_EQ(1, client_socket_factory_.allocation_count());
}
TEST_F(TransportConnectJobTest, IPv4HasNoFallback) {
client_socket_factory_.set_default_client_socket_type(
MockTransportClientSocketFactory::Type::kDelayed);
// Resolve an AddressList with only IPv4 addresses.
host_resolver_.rules()->AddIPLiteralRule(kHostName, "1.1.1.1", std::string());
TestConnectJobDelegate test_delegate;
TransportConnectJob transport_connect_job(
DEFAULT_PRIORITY, SocketTag(), &common_connect_job_params_,
DefaultParams(), &test_delegate, nullptr /* net_log */);
test_delegate.StartJobExpectingResult(&transport_connect_job, OK,
false /* expect_sync_result */);
IPEndPoint endpoint;
test_delegate.socket()->GetLocalAddress(&endpoint);
EXPECT_TRUE(endpoint.address().IsIPv4());
ConnectionAttempts attempts = transport_connect_job.GetConnectionAttempts();
EXPECT_EQ(0u, attempts.size());
EXPECT_EQ(1, client_socket_factory_.allocation_count());
}
TEST_F(TransportConnectJobTest, DnsAliases) {
host_resolver_.set_synchronous_mode(true);
client_socket_factory_.set_default_client_socket_type(
MockTransportClientSocketFactory::Type::kSynchronous);
// Resolve an AddressList with DNS aliases.
std::vector<std::string> aliases({"alias1", "alias2", kHostName});
host_resolver_.rules()->AddIPLiteralRuleWithDnsAliases(kHostName, "2.2.2.2",
std::move(aliases));
TestConnectJobDelegate test_delegate;
TransportConnectJob transport_connect_job(
DEFAULT_PRIORITY, SocketTag(), &common_connect_job_params_,
DefaultParams(), &test_delegate, nullptr /* net_log */);
test_delegate.StartJobExpectingResult(&transport_connect_job, OK,
true /* expect_sync_result */);
// Verify that the elements of the alias list are those from the
// parameter vector.
EXPECT_THAT(test_delegate.socket()->GetDnsAliases(),
testing::ElementsAre("alias1", "alias2", kHostName));
}
TEST_F(TransportConnectJobTest, NoAdditionalDnsAliases) {
host_resolver_.set_synchronous_mode(true);
client_socket_factory_.set_default_client_socket_type(
MockTransportClientSocketFactory::Type::kSynchronous);
// Resolve an AddressList without additional DNS aliases. (The parameter
// is an empty vector.)
std::vector<std::string> aliases;
host_resolver_.rules()->AddIPLiteralRuleWithDnsAliases(kHostName, "2.2.2.2",
std::move(aliases));
TestConnectJobDelegate test_delegate;
TransportConnectJob transport_connect_job(
DEFAULT_PRIORITY, SocketTag(), &common_connect_job_params_,
DefaultParams(), &test_delegate, nullptr /* net_log */);
test_delegate.StartJobExpectingResult(&transport_connect_job, OK,
true /* expect_sync_result */);
// Verify that the alias list only contains kHostName.
EXPECT_THAT(test_delegate.socket()->GetDnsAliases(),
testing::ElementsAre(kHostName));
}
// Test that `TransportConnectJob` will pick up options from
// `HostResolverEndpointResult`.
TEST_F(TransportConnectJobTest, EndpointResult) {
HostResolverEndpointResult endpoint;
endpoint.ip_endpoints = {IPEndPoint(ParseIP("1::"), 8443),
IPEndPoint(ParseIP("1.1.1.1"), 8443)};
endpoint.metadata.supported_protocol_alpns = {"h2"};
host_resolver_.rules()->AddRule(
kHostName,
MockHostResolverBase::RuleResolver::RuleResult(std::vector{endpoint}));
// The first access succeeds.
MockTransportClientSocketFactory::Rule rule(
MockTransportClientSocketFactory::Type::kSynchronous,
std::vector{IPEndPoint(ParseIP("1::"), 8443)});
client_socket_factory_.SetRules(base::make_span(&rule, 1u));
TestConnectJobDelegate test_delegate;
TransportConnectJob transport_connect_job(
DEFAULT_PRIORITY, SocketTag(), &common_connect_job_params_,
DefaultHttpsParams(), &test_delegate, /*net_log=*/nullptr);
test_delegate.StartJobExpectingResult(&transport_connect_job, OK,
/*expect_sync_result=*/false);
IPEndPoint peer_address;
test_delegate.socket()->GetPeerAddress(&peer_address);
EXPECT_EQ(peer_address, IPEndPoint(ParseIP("1::"), 8443));
EXPECT_EQ(1, client_socket_factory_.allocation_count());
// There were no failed connection attempts to report.
ConnectionAttempts attempts = transport_connect_job.GetConnectionAttempts();
EXPECT_EQ(0u, attempts.size());
}
// Test that, given multiple `HostResolverEndpointResult` results,
// `TransportConnectJob` tries each in succession.
TEST_F(TransportConnectJobTest, MultipleRoutesFallback) {
std::vector<HostResolverEndpointResult> endpoints(3);
endpoints[0].ip_endpoints = {IPEndPoint(ParseIP("1::"), 8441),
IPEndPoint(ParseIP("1.1.1.1"), 8441)};
endpoints[0].metadata.supported_protocol_alpns = {"h3", "h2", "http/1.1"};
endpoints[1].ip_endpoints = {IPEndPoint(ParseIP("2::"), 8442),
IPEndPoint(ParseIP("2.2.2.2"), 8442)};
endpoints[1].metadata.supported_protocol_alpns = {"h3"};
endpoints[2].ip_endpoints = {IPEndPoint(ParseIP("4::"), 443),
IPEndPoint(ParseIP("4.4.4.4"), 443)};
host_resolver_.rules()->AddRule(
kHostName, MockHostResolverBase::RuleResolver::RuleResult(endpoints));
MockTransportClientSocketFactory::Rule rules[] = {
// `endpoints[0]`'s addresses each fail.
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kFailing,
std::vector{endpoints[0].ip_endpoints[0]}),
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kFailing,
std::vector{endpoints[0].ip_endpoints[1]}),
// `endpoints[1]` is skipped because the ALPN is not compatible.
// `endpoints[2]`'s first address succeeds.
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kSynchronous,
std::vector{endpoints[2].ip_endpoints[0]}),
};
client_socket_factory_.SetRules(rules);
TestConnectJobDelegate test_delegate;
TransportConnectJob transport_connect_job(
DEFAULT_PRIORITY, SocketTag(), &common_connect_job_params_,
DefaultHttpsParams(), &test_delegate, /*net_log=*/nullptr);
test_delegate.StartJobExpectingResult(&transport_connect_job, OK,
/*expect_sync_result=*/false);
IPEndPoint peer_address;
test_delegate.socket()->GetPeerAddress(&peer_address);
EXPECT_EQ(peer_address, IPEndPoint(ParseIP("4::"), 443));
// Check that failed connection attempts are reported.
ConnectionAttempts attempts = transport_connect_job.GetConnectionAttempts();
ASSERT_EQ(2u, attempts.size());
EXPECT_THAT(attempts[0].result, test::IsError(ERR_CONNECTION_FAILED));
EXPECT_EQ(attempts[0].endpoint, IPEndPoint(ParseIP("1::"), 8441));
EXPECT_THAT(attempts[1].result, test::IsError(ERR_CONNECTION_FAILED));
EXPECT_EQ(attempts[1].endpoint, IPEndPoint(ParseIP("1.1.1.1"), 8441));
}
// Test that the `HostResolverEndpointResult` fallback works in combination with
// the IPv4 fallback.
TEST_F(TransportConnectJobTest, MultipleRoutesIPV4Fallback) {
HostResolverEndpointResult endpoint1, endpoint2, endpoint3;
endpoint1.ip_endpoints = {IPEndPoint(ParseIP("1::"), 8441),
IPEndPoint(ParseIP("1.1.1.1"), 8441)};
endpoint1.metadata.supported_protocol_alpns = {"h3", "h2", "http/1.1"};
endpoint2.ip_endpoints = {IPEndPoint(ParseIP("2::"), 8442),
IPEndPoint(ParseIP("2.2.2.2"), 8442)};
endpoint2.metadata.supported_protocol_alpns = {"h3"};
endpoint3.ip_endpoints = {IPEndPoint(ParseIP("3::"), 443),
IPEndPoint(ParseIP("3.3.3.3"), 443)};
host_resolver_.rules()->AddRule(
kHostName, MockHostResolverBase::RuleResolver::RuleResult(
std::vector{endpoint1, endpoint2, endpoint3}));
MockTransportClientSocketFactory::Rule rules[] = {
// `endpoint1`'s IPv6 address fails, but takes long enough that the IPv4
// fallback runs.
//
// TODO(davidben): If the network is such that IPv6 connection attempts
// always stall, we will never try `endpoint2`. Should Happy Eyeballs
// logic happen before HTTPS RR. Or perhaps we should implement a more
// Happy-Eyeballs-v2-like strategy.
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kDelayedFailing,
std::vector{IPEndPoint(ParseIP("1::"), 8441)}),
// `endpoint1`'s IPv4 address fails immediately.
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kFailing,
std::vector{IPEndPoint(ParseIP("1.1.1.1"), 8441)}),
// `endpoint2` is skipped because the ALPN is not compatible.
// `endpoint3`'s IPv6 address never completes.
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kStalled,
std::vector{IPEndPoint(ParseIP("3::"), 443)}),
// `endpoint3`'s IPv4 address succeeds.
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kSynchronous,
std::vector{IPEndPoint(ParseIP("3.3.3.3"), 443)}),
};
client_socket_factory_.SetRules(rules);
client_socket_factory_.set_delay(TransportConnectJob::kIPv6FallbackTime +
base::Milliseconds(50));
TestConnectJobDelegate test_delegate;
TransportConnectJob transport_connect_job(
DEFAULT_PRIORITY, SocketTag(), &common_connect_job_params_,
DefaultHttpsParams(), &test_delegate, /*net_log=*/nullptr);
test_delegate.StartJobExpectingResult(&transport_connect_job, OK,
/*expect_sync_result=*/false);
IPEndPoint peer_address;
test_delegate.socket()->GetPeerAddress(&peer_address);
EXPECT_EQ(peer_address, IPEndPoint(ParseIP("3.3.3.3"), 443));
// Check that failed connection attempts are reported.
ConnectionAttempts attempts = transport_connect_job.GetConnectionAttempts();
ASSERT_EQ(2u, attempts.size());
EXPECT_THAT(attempts[0].result, test::IsError(ERR_CONNECTION_FAILED));
EXPECT_EQ(attempts[0].endpoint, IPEndPoint(ParseIP("1.1.1.1"), 8441));
EXPECT_THAT(attempts[1].result, test::IsError(ERR_CONNECTION_FAILED));
EXPECT_EQ(attempts[1].endpoint, IPEndPoint(ParseIP("1::"), 8441));
}
// Test that `TransportConnectJob` will not continue trying routes given
// ERR_NETWORK_IO_SUSPENDED.
TEST_F(TransportConnectJobTest, MultipleRoutesSuspended) {
std::vector<HostResolverEndpointResult> endpoints(2);
endpoints[0].ip_endpoints = {IPEndPoint(ParseIP("1::"), 8443)};
endpoints[0].metadata.supported_protocol_alpns = {"h3", "h2", "http/1.1"};
endpoints[1].ip_endpoints = {IPEndPoint(ParseIP("2::"), 443)};
host_resolver_.rules()->AddRule(
kHostName, MockHostResolverBase::RuleResolver::RuleResult(endpoints));
// The first connect attempt will fail with `ERR_NETWORK_IO_SUSPENDED`.
// `TransportConnectJob` should not attempt routes after receiving this error.
MockTransportClientSocketFactory::Rule rule(
MockTransportClientSocketFactory::Type::kFailing,
endpoints[0].ip_endpoints, ERR_NETWORK_IO_SUSPENDED);
client_socket_factory_.SetRules(base::make_span(&rule, 1u));
TestConnectJobDelegate test_delegate;
TransportConnectJob transport_connect_job(
DEFAULT_PRIORITY, SocketTag(), &common_connect_job_params_,
DefaultHttpsParams(), &test_delegate, /*net_log=*/nullptr);
test_delegate.StartJobExpectingResult(&transport_connect_job,
ERR_NETWORK_IO_SUSPENDED,
/*expect_sync_result=*/false);
// Check that failed connection attempts are reported.
ConnectionAttempts attempts = transport_connect_job.GetConnectionAttempts();
ASSERT_EQ(1u, attempts.size());
EXPECT_THAT(attempts[0].result, test::IsError(ERR_NETWORK_IO_SUSPENDED));
EXPECT_EQ(attempts[0].endpoint, IPEndPoint(ParseIP("1::"), 8443));
}
// Test that, if `HostResolver` supports SVCB for a scheme but the caller didn't
// pass in any ALPN protocols, `TransportConnectJob` ignores all protocol
// endpoints.
TEST_F(TransportConnectJobTest, NoAlpnProtocols) {
std::vector<HostResolverEndpointResult> endpoints(3);
endpoints[0].ip_endpoints = {IPEndPoint(ParseIP("1::"), 8081),
IPEndPoint(ParseIP("1.1.1.1"), 8081)};
endpoints[0].metadata.supported_protocol_alpns = {"foo", "bar"};
endpoints[1].ip_endpoints = {IPEndPoint(ParseIP("2::"), 8082),
IPEndPoint(ParseIP("2.2.2.2"), 8082)};
endpoints[1].metadata.supported_protocol_alpns = {"baz"};
endpoints[2].ip_endpoints = {IPEndPoint(ParseIP("3::"), 80),
IPEndPoint(ParseIP("3.3.3.3"), 80)};
host_resolver_.rules()->AddRule(
kHostName, MockHostResolverBase::RuleResolver::RuleResult(endpoints));
// `endpoints[2]`'s first address succeeds.
MockTransportClientSocketFactory::Rule rule(
MockTransportClientSocketFactory::Type::kSynchronous,
std::vector{endpoints[2].ip_endpoints[0]});
client_socket_factory_.SetRules(base::make_span(&rule, 1u));
// Use `DefaultParams()`, an http scheme. That it is http is not very
// important, but `url::SchemeHostPort` is difficult to use with unknown
// schemes. See https://crbug.com/869291.
scoped_refptr<TransportSocketParams> params = DefaultParams();
ASSERT_TRUE(params->supported_alpns().empty());
TestConnectJobDelegate test_delegate;
TransportConnectJob transport_connect_job(
DEFAULT_PRIORITY, SocketTag(), &common_connect_job_params_,
std::move(params), &test_delegate, /*net_log=*/nullptr);
test_delegate.StartJobExpectingResult(&transport_connect_job, OK,
/*expect_sync_result=*/false);
IPEndPoint peer_address;
test_delegate.socket()->GetPeerAddress(&peer_address);
EXPECT_EQ(peer_address, IPEndPoint(ParseIP("3::"), 80));
}
// Test that, given multiple `HostResolverEndpointResult` results,
// `TransportConnectJob` reports failure if each one fails.
TEST_F(TransportConnectJobTest, MultipleRoutesAllFailed) {
std::vector<HostResolverEndpointResult> endpoints(3);
endpoints[0].ip_endpoints = {IPEndPoint(ParseIP("1::"), 8441),
IPEndPoint(ParseIP("1.1.1.1"), 8441)};
endpoints[0].metadata.supported_protocol_alpns = {"h3", "h2", "http/1.1"};
endpoints[1].ip_endpoints = {IPEndPoint(ParseIP("2::"), 8442),
IPEndPoint(ParseIP("2.2.2.2"), 8442)};
endpoints[1].metadata.supported_protocol_alpns = {"h3"};
endpoints[2].ip_endpoints = {IPEndPoint(ParseIP("3::"), 443),
IPEndPoint(ParseIP("3.3.3.3"), 443)};
host_resolver_.rules()->AddRule(
kHostName, MockHostResolverBase::RuleResolver::RuleResult(endpoints));
MockTransportClientSocketFactory::Rule rules[] = {
// `endpoints[0]`'s addresses each fail.
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kFailing,
std::vector{endpoints[0].ip_endpoints[0]}),
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kFailing,
std::vector{endpoints[0].ip_endpoints[1]}),
// `endpoints[1]` is skipped because the ALPN is not compatible.
// `endpoints[2]`'s addresses each fail.
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kFailing,
std::vector{endpoints[2].ip_endpoints[0]}),
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kFailing,
std::vector{endpoints[2].ip_endpoints[1]}),
};
client_socket_factory_.SetRules(rules);
TestConnectJobDelegate test_delegate;
TransportConnectJob transport_connect_job(
DEFAULT_PRIORITY, SocketTag(), &common_connect_job_params_,
DefaultHttpsParams(), &test_delegate, /*net_log=*/nullptr);
test_delegate.StartJobExpectingResult(&transport_connect_job,
ERR_CONNECTION_FAILED,
/*expect_sync_result=*/false);
// Check that failed connection attempts are reported.
ConnectionAttempts attempts = transport_connect_job.GetConnectionAttempts();
ASSERT_EQ(4u, attempts.size());
EXPECT_THAT(attempts[0].result, test::IsError(ERR_CONNECTION_FAILED));
EXPECT_EQ(attempts[0].endpoint, IPEndPoint(ParseIP("1::"), 8441));
EXPECT_THAT(attempts[1].result, test::IsError(ERR_CONNECTION_FAILED));
EXPECT_EQ(attempts[1].endpoint, IPEndPoint(ParseIP("1.1.1.1"), 8441));
EXPECT_THAT(attempts[2].result, test::IsError(ERR_CONNECTION_FAILED));
EXPECT_EQ(attempts[2].endpoint, IPEndPoint(ParseIP("3::"), 443));
EXPECT_THAT(attempts[3].result, test::IsError(ERR_CONNECTION_FAILED));
EXPECT_EQ(attempts[3].endpoint, IPEndPoint(ParseIP("3.3.3.3"), 443));
}
// Test that `TransportConnectJob` reports failure if all provided routes were
// unusable.
TEST_F(TransportConnectJobTest, NoUsableRoutes) {
std::vector<HostResolverEndpointResult> endpoints(2);
endpoints[0].ip_endpoints = {IPEndPoint(ParseIP("1::"), 8441),
IPEndPoint(ParseIP("1.1.1.1"), 8441)};
endpoints[0].metadata.supported_protocol_alpns = {"h3"};
endpoints[1].ip_endpoints = {IPEndPoint(ParseIP("2::"), 8442),
IPEndPoint(ParseIP("2.2.2.2"), 8442)};
endpoints[1].metadata.supported_protocol_alpns = {"unrecognized-protocol"};
host_resolver_.rules()->AddRule(
kHostName, MockHostResolverBase::RuleResolver::RuleResult(endpoints));
// `TransportConnectJob` should not create any sockets.
client_socket_factory_.set_default_client_socket_type(
MockTransportClientSocketFactory::Type::kUnexpected);
TestConnectJobDelegate test_delegate;
TransportConnectJob transport_connect_job(
DEFAULT_PRIORITY, SocketTag(), &common_connect_job_params_,
DefaultHttpsParams(), &test_delegate, /*net_log=*/nullptr);
test_delegate.StartJobExpectingResult(&transport_connect_job,
ERR_NAME_NOT_RESOLVED,
/*expect_sync_result=*/false);
}
// Test that, if the last route is unusable, the error from the
// previously-attempted route is preserved.
TEST_F(TransportConnectJobTest, LastRouteUnusable) {
std::vector<HostResolverEndpointResult> endpoints(2);
endpoints[0].ip_endpoints = {IPEndPoint(ParseIP("1::"), 8441),
IPEndPoint(ParseIP("1.1.1.1"), 8441)};
endpoints[0].metadata.supported_protocol_alpns = {"h3", "h2", "http/1.1"};
endpoints[1].ip_endpoints = {IPEndPoint(ParseIP("2::"), 8442),
IPEndPoint(ParseIP("2.2.2.2"), 8442)};
endpoints[1].metadata.supported_protocol_alpns = {"h3"};
host_resolver_.rules()->AddRule(
kHostName, MockHostResolverBase::RuleResolver::RuleResult(endpoints));
MockTransportClientSocketFactory::Rule rules[] = {
// `endpoints[0]`'s addresses each fail.
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kFailing,
std::vector{endpoints[0].ip_endpoints[0]}),
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kFailing,
std::vector{endpoints[0].ip_endpoints[1]}),
// `endpoints[1]` is skipped because the ALPN is not compatible.
};
client_socket_factory_.SetRules(rules);
TestConnectJobDelegate test_delegate;
TransportConnectJob transport_connect_job(
DEFAULT_PRIORITY, SocketTag(), &common_connect_job_params_,
DefaultHttpsParams(), &test_delegate, /*net_log=*/nullptr);
test_delegate.StartJobExpectingResult(&transport_connect_job,
ERR_CONNECTION_FAILED,
/*expect_sync_result=*/false);
// Check that failed connection attempts are reported.
ConnectionAttempts attempts = transport_connect_job.GetConnectionAttempts();
ASSERT_EQ(2u, attempts.size());
EXPECT_THAT(attempts[0].result, test::IsError(ERR_CONNECTION_FAILED));
EXPECT_EQ(attempts[0].endpoint, IPEndPoint(ParseIP("1::"), 8441));
EXPECT_THAT(attempts[1].result, test::IsError(ERR_CONNECTION_FAILED));
EXPECT_EQ(attempts[1].endpoint, IPEndPoint(ParseIP("1.1.1.1"), 8441));
}
// `GetHostResolverEndpointResult` should surface information about the endpoint
// that was actually used.
TEST_F(TransportConnectJobTest, GetHostResolverEndpointResult) {
std::vector<HostResolverEndpointResult> endpoints(4);
// `endpoints[0]` will be skipped due to ALPN mismatch.
endpoints[0].ip_endpoints = {IPEndPoint(ParseIP("1::"), 8441)};
endpoints[0].metadata.supported_protocol_alpns = {"h3"};
endpoints[0].metadata.ech_config_list = {1, 2, 3, 4};
// `endpoints[1]` will be skipped due to connection failure.
endpoints[1].ip_endpoints = {IPEndPoint(ParseIP("2::"), 8442)};
endpoints[1].metadata.supported_protocol_alpns = {"http/1.1"};
endpoints[1].metadata.ech_config_list = {5, 6, 7, 8};
// `endpoints[2]` will succeed.
endpoints[2].ip_endpoints = {IPEndPoint(ParseIP("3::"), 8443)};
endpoints[2].metadata.supported_protocol_alpns = {"http/1.1"};
endpoints[2].metadata.ech_config_list = {9, 10, 11, 12};
// `endpoints[3]` will be not be tried because `endpoints[2]` will already
// have succeeded.
endpoints[3].ip_endpoints = {IPEndPoint(ParseIP("4::"), 8444)};
endpoints[3].metadata.supported_protocol_alpns = {"http/1.1"};
endpoints[3].metadata.ech_config_list = {13, 14, 15, 16};
host_resolver_.rules()->AddRule(
kHostName, MockHostResolverBase::RuleResolver::RuleResult(endpoints));
MockTransportClientSocketFactory::Rule rules[] = {
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kFailing,
std::vector{IPEndPoint(ParseIP("2::"), 8442)}),
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kSynchronous,
std::vector{IPEndPoint(ParseIP("3::"), 8443)}),
};
client_socket_factory_.SetRules(rules);
TestConnectJobDelegate test_delegate;
TransportConnectJob transport_connect_job(
DEFAULT_PRIORITY, SocketTag(), &common_connect_job_params_,
DefaultHttpsParams(), &test_delegate, /*net_log=*/nullptr);
test_delegate.StartJobExpectingResult(&transport_connect_job, OK,
/*expect_sync_result=*/false);
EXPECT_EQ(transport_connect_job.GetHostResolverEndpointResult(),
endpoints[2]);
}
// If the client and server both support ECH, TransportConnectJob should switch
// to SVCB-reliant mode and disable the A/AAAA fallback.
TEST_F(TransportConnectJobTest, SvcbReliantIfEch) {
HostResolverEndpointResult endpoint1, endpoint2, endpoint3;
endpoint1.ip_endpoints = {IPEndPoint(ParseIP("1::"), 8441)};
endpoint1.metadata.supported_protocol_alpns = {"http/1.1"};
endpoint1.metadata.ech_config_list = {1, 2, 3, 4};
endpoint2.ip_endpoints = {IPEndPoint(ParseIP("2::"), 8442)};
endpoint2.metadata.supported_protocol_alpns = {"http/1.1"};
endpoint2.metadata.ech_config_list = {1, 2, 3, 4};
endpoint3.ip_endpoints = {IPEndPoint(ParseIP("3::"), 443)};
// `endpoint3` has no `supported_protocol_alpns` and is thus a fallback route.
host_resolver_.rules()->AddRule(
kHostName, MockHostResolverBase::RuleResolver::RuleResult(
std::vector{endpoint1, endpoint2, endpoint3}));
// `TransportConnectJob` should not try `endpoint3`.
MockTransportClientSocketFactory::Rule rules[] = {
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kFailing,
std::vector{IPEndPoint(ParseIP("1::"), 8441)}),
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kFailing,
std::vector{IPEndPoint(ParseIP("2::"), 8442)}),
};
client_socket_factory_.SetRules(rules);
TestConnectJobDelegate test_delegate;
TransportConnectJob transport_connect_job(
DEFAULT_PRIORITY, SocketTag(), &common_connect_job_params_,
DefaultHttpsParams(), &test_delegate, /*net_log=*/nullptr);
test_delegate.StartJobExpectingResult(&transport_connect_job,
ERR_CONNECTION_FAILED,
/*expect_sync_result=*/false);
ConnectionAttempts attempts = transport_connect_job.GetConnectionAttempts();
ASSERT_EQ(2u, attempts.size());
EXPECT_THAT(attempts[0].result, test::IsError(ERR_CONNECTION_FAILED));
EXPECT_EQ(attempts[0].endpoint, IPEndPoint(ParseIP("1::"), 8441));
EXPECT_THAT(attempts[1].result, test::IsError(ERR_CONNECTION_FAILED));
EXPECT_EQ(attempts[1].endpoint, IPEndPoint(ParseIP("2::"), 8442));
}
// SVCB-reliant mode should be disabled for ECH servers when ECH is disabled via
// config.
TEST_F(TransportConnectJobTest, SvcbOptionalIfEchDisabledConfig) {
SSLContextConfig config;
config.ech_enabled = false;
ssl_config_service_.UpdateSSLConfigAndNotify(config);
HostResolverEndpointResult endpoint1, endpoint2, endpoint3;
endpoint1.ip_endpoints = {IPEndPoint(ParseIP("1::"), 8441)};
endpoint1.metadata.supported_protocol_alpns = {"http/1.1"};
endpoint1.metadata.ech_config_list = {1, 2, 3, 4};
endpoint2.ip_endpoints = {IPEndPoint(ParseIP("2::"), 8442)};
endpoint2.metadata.supported_protocol_alpns = {"http/1.1"};
endpoint2.metadata.ech_config_list = {1, 2, 3, 4};
endpoint3.ip_endpoints = {IPEndPoint(ParseIP("3::"), 443)};
// `endpoint3` has no `supported_protocol_alpns` and is thus a fallback route.
host_resolver_.rules()->AddRule(
kHostName, MockHostResolverBase::RuleResolver::RuleResult(
std::vector{endpoint1, endpoint2, endpoint3}));
// `TransportConnectJob` should try `endpoint3`.
MockTransportClientSocketFactory::Rule rules[] = {
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kFailing,
std::vector{IPEndPoint(ParseIP("1::"), 8441)}),
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kFailing,
std::vector{IPEndPoint(ParseIP("2::"), 8442)}),
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kSynchronous,
std::vector{IPEndPoint(ParseIP("3::"), 443)}),
};
client_socket_factory_.SetRules(rules);
TestConnectJobDelegate test_delegate;
TransportConnectJob transport_connect_job(
DEFAULT_PRIORITY, SocketTag(), &common_connect_job_params_,
DefaultHttpsParams(), &test_delegate, /*net_log=*/nullptr);
test_delegate.StartJobExpectingResult(&transport_connect_job, OK,
/*expect_sync_result=*/false);
}
// SVCB-reliant mode should be disabled if not all SVCB/HTTPS records include
// ECH.
TEST_F(TransportConnectJobTest, SvcbOptionalIfEchInconsistent) {
HostResolverEndpointResult endpoint1, endpoint2, endpoint3;
endpoint1.ip_endpoints = {IPEndPoint(ParseIP("1::"), 8441)};
endpoint1.metadata.supported_protocol_alpns = {"http/1.1"};
endpoint1.metadata.ech_config_list = {1, 2, 3, 4};
endpoint2.ip_endpoints = {IPEndPoint(ParseIP("2::"), 8442)};
endpoint2.metadata.supported_protocol_alpns = {"http/1.1"};
endpoint2.metadata.ech_config_list = {};
endpoint3.ip_endpoints = {IPEndPoint(ParseIP("3::"), 443)};
// `endpoint3` has no `supported_protocol_alpns` and is thus a fallback route.
host_resolver_.rules()->AddRule(
kHostName, MockHostResolverBase::RuleResolver::RuleResult(
std::vector{endpoint1, endpoint2, endpoint3}));
// `TransportConnectJob` should try `endpoint3`.
MockTransportClientSocketFactory::Rule rules[] = {
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kFailing,
std::vector{IPEndPoint(ParseIP("1::"), 8441)}),
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kFailing,
std::vector{IPEndPoint(ParseIP("2::"), 8442)}),
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kSynchronous,
std::vector{IPEndPoint(ParseIP("3::"), 443)}),
};
client_socket_factory_.SetRules(rules);
TestConnectJobDelegate test_delegate;
TransportConnectJob transport_connect_job(
DEFAULT_PRIORITY, SocketTag(), &common_connect_job_params_,
DefaultHttpsParams(), &test_delegate, /*net_log=*/nullptr);
test_delegate.StartJobExpectingResult(&transport_connect_job, OK,
/*expect_sync_result=*/false);
}
// Overriding the endpoint results should skip DNS resolution.
TEST_F(TransportConnectJobTest, EndpointResultOverride) {
// Make DNS resolution fail, to confirm we don't use the result.
host_resolver_.rules()->AddRule(kHostName, ERR_FAILED);
// `TransportConnectJob` should try `endpoint`.
HostResolverEndpointResult endpoint;
endpoint.ip_endpoints = {IPEndPoint(ParseIP("1::"), 8441)};
endpoint.metadata.supported_protocol_alpns = {"http/1.1"};
MockTransportClientSocketFactory::Rule rules[] = {
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kSynchronous,
endpoint.ip_endpoints),
};
client_socket_factory_.SetRules(rules);
TransportConnectJob::EndpointResultOverride override(
endpoint, {"alias.example", kHostName});
TestConnectJobDelegate test_delegate;
TransportConnectJob transport_connect_job(
DEFAULT_PRIORITY, SocketTag(), &common_connect_job_params_,
DefaultHttpsParams(), &test_delegate, /*net_log=*/nullptr, override);
test_delegate.StartJobExpectingResult(&transport_connect_job, OK,
/*expect_sync_result=*/true);
// Verify information is reported from the override.
EXPECT_EQ(transport_connect_job.GetHostResolverEndpointResult(), endpoint);
EXPECT_THAT(test_delegate.socket()->GetDnsAliases(),
testing::ElementsAre("alias.example", kHostName));
}
// If two `HostResolverEndpointResult`s share an IP endpoint,
// `TransportConnectJob` should not try to connect a second time.
TEST_F(TransportConnectJobTest, DedupIPEndPoints) {
std::vector<HostResolverEndpointResult> endpoints(4);
// Some initial IPEndPoints.
endpoints[0].ip_endpoints = {IPEndPoint(ParseIP("1::"), 443),
IPEndPoint(ParseIP("1.1.1.1"), 443)};
endpoints[0].metadata.supported_protocol_alpns = {"h2", "http/1.1"};
// Contains a new IPEndPoint, but no common protocols.
endpoints[1].ip_endpoints = {IPEndPoint(ParseIP("2::"), 443)};
endpoints[1].metadata.supported_protocol_alpns = {"h3"};
// Contains mixture of previously seen and new IPEndPoints, so we should only
// try a subset of them.
endpoints[2].ip_endpoints = {
// Duplicate from `endpoints[0]`, should be filtered out.
IPEndPoint(ParseIP("1::"), 443),
// Same IP but new port. Should be used.
IPEndPoint(ParseIP("1::"), 444),
// Duplicate from `endpoints[1]`, but `endpoints[1]` was dropped, so this
// should be used.
IPEndPoint(ParseIP("2::"), 443),
// Duplicate from `endpoints[0]`, should be filtered out.
IPEndPoint(ParseIP("1.1.1.1"), 443),
// New endpoint. Should be used.
IPEndPoint(ParseIP("2.2.2.2"), 443)};
endpoints[2].metadata.supported_protocol_alpns = {"h2", "http/1.1"};
// Contains only previously seen IPEndPoints, so should be filtered out
// entirely.
endpoints[3].ip_endpoints = {IPEndPoint(ParseIP("1::"), 443),
IPEndPoint(ParseIP("1::"), 444),
IPEndPoint(ParseIP("2.2.2.2"), 443)};
endpoints[3].metadata.supported_protocol_alpns = {"h2", "http/1.1"};
host_resolver_.rules()->AddRule(
kHostName, MockHostResolverBase::RuleResolver::RuleResult(endpoints));
MockTransportClientSocketFactory::Rule rules[] = {
// First, try `endpoints[0]`'s addresses.
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kFailing,
std::vector{IPEndPoint(ParseIP("1::"), 443)}),
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kFailing,
std::vector{IPEndPoint(ParseIP("1.1.1.1"), 443)}),
// `endpoints[1]` is unusable, so it is ignored, including for purposes of
// duplicate endpoints.
// Only new IP endpoints from `endpoints[2]` should be considered. Note
// different ports count as different endpoints.
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kFailing,
std::vector{IPEndPoint(ParseIP("1::"), 444)}),
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kFailing,
std::vector{IPEndPoint(ParseIP("2::"), 443)}),
MockTransportClientSocketFactory::Rule(
MockTransportClientSocketFactory::Type::kFailing,
std::vector{IPEndPoint(ParseIP("2.2.2.2"), 443)}),
// `endpoints[3]` only contains duplicate IP endpoints and should be
// skipped.
};
client_socket_factory_.SetRules(rules);
TestConnectJobDelegate test_delegate;
TransportConnectJob transport_connect_job(
DEFAULT_PRIORITY, SocketTag(), &common_connect_job_params_,
DefaultHttpsParams(), &test_delegate, /*net_log=*/nullptr);
test_delegate.StartJobExpectingResult(&transport_connect_job,
ERR_CONNECTION_FAILED,
/*expect_sync_result=*/false);
// Check that failed connection attempts are reported.
ConnectionAttempts attempts = transport_connect_job.GetConnectionAttempts();
ASSERT_EQ(5u, attempts.size());
EXPECT_THAT(attempts[0].result, test::IsError(ERR_CONNECTION_FAILED));
EXPECT_EQ(attempts[0].endpoint, IPEndPoint(ParseIP("1::"), 443));
EXPECT_THAT(attempts[1].result, test::IsError(ERR_CONNECTION_FAILED));
EXPECT_EQ(attempts[1].endpoint, IPEndPoint(ParseIP("1.1.1.1"), 443));
EXPECT_THAT(attempts[2].result, test::IsError(ERR_CONNECTION_FAILED));
EXPECT_EQ(attempts[2].endpoint, IPEndPoint(ParseIP("1::"), 444));
EXPECT_THAT(attempts[3].result, test::IsError(ERR_CONNECTION_FAILED));
EXPECT_EQ(attempts[3].endpoint, IPEndPoint(ParseIP("2::"), 443));
EXPECT_THAT(attempts[4].result, test::IsError(ERR_CONNECTION_FAILED));
EXPECT_EQ(attempts[4].endpoint, IPEndPoint(ParseIP("2.2.2.2"), 443));
}
} // namespace
} // namespace net