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alpn_selection_integration_test.cc
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alpn_selection_integration_test.cc
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#include "envoy/config/bootstrap/v3/bootstrap.pb.h"
#include "envoy/config/route/v3/route_components.pb.h"
#include "envoy/extensions/transport_sockets/tls/v3/cert.pb.h"
#include "source/common/http/utility.h"
#include "source/common/tls/context_impl.h"
#include "source/common/tls/server_context_config_impl.h"
#include "source/common/tls/server_ssl_socket.h"
#include "test/integration/http_integration.h"
#include "absl/strings/str_replace.h"
#include "gtest/gtest.h"
namespace Envoy {
class AlpnSelectionIntegrationTest : public testing::Test, public HttpIntegrationTest {
public:
AlpnSelectionIntegrationTest()
: HttpIntegrationTest(Http::CodecType::HTTP1, TestEnvironment::getIpVersionsForTest().front(),
ConfigHelper::httpProxyConfig()) {}
void initialize() override {
setDownstreamProtocol(Http::CodecType::HTTP1);
setUpstreamProtocol(use_h2_ ? Http::CodecType::HTTP2 : Http::CodecType::HTTP1);
config_helper_.addConfigModifier([&](envoy::config::bootstrap::v3::Bootstrap& bootstrap) {
auto* static_resources = bootstrap.mutable_static_resources();
auto* cluster = static_resources->mutable_clusters(0);
if (use_h2_) {
ConfigHelper::setHttp2(*cluster);
}
const std::string transport_socket_yaml = absl::StrFormat(
R"EOF(
name: tls
typed_config:
"@type": type.googleapis.com/envoy.extensions.transport_sockets.tls.v3.UpstreamTlsContext
common_tls_context:
alpn_protocols: [ %s ]
tls_certificates:
- certificate_chain: { filename: "%s" }
private_key: { filename: "%s" }
)EOF",
absl::StrJoin(configured_alpn_, ","),
TestEnvironment::runfilesPath("test/config/integration/certs/clientcert.pem"),
TestEnvironment::runfilesPath("test/config/integration/certs/clientkey.pem"));
auto* transport_socket = cluster->mutable_transport_socket();
TestUtility::loadFromYaml(transport_socket_yaml, *transport_socket);
});
HttpIntegrationTest::initialize();
}
Network::DownstreamTransportSocketFactoryPtr createUpstreamSslContext() {
envoy::extensions::transport_sockets::tls::v3::DownstreamTlsContext tls_context;
const std::string yaml = absl::StrFormat(
R"EOF(
common_tls_context:
alpn_protocols: [%s]
tls_certificates:
- certificate_chain: { filename: "%s" }
private_key: { filename: "%s" }
validation_context:
trusted_ca: { filename: "%s" }
require_client_certificate: true
)EOF",
absl::StrJoin(upstream_alpn_, ","),
TestEnvironment::runfilesPath("test/config/integration/certs/upstreamcert.pem"),
TestEnvironment::runfilesPath("test/config/integration/certs/upstreamkey.pem"),
TestEnvironment::runfilesPath("test/config/integration/certs/cacert.pem"));
TestUtility::loadFromYaml(yaml, tls_context);
auto cfg = *Extensions::TransportSockets::Tls::ServerContextConfigImpl::create(
tls_context, factory_context_, false);
static auto* upstream_stats_store = new Stats::IsolatedStoreImpl();
return *Extensions::TransportSockets::Tls::ServerSslSocketFactory::create(
std::move(cfg), context_manager_, *upstream_stats_store->rootScope(),
std::vector<std::string>{});
}
void createUpstreams() override {
auto endpoint = upstream_address_fn_(0);
FakeUpstreamConfig config = upstreamConfig();
config.upstream_protocol_ = use_h2_ ? Http::CodecType::HTTP2 : Http::CodecType::HTTP1;
fake_upstreams_.emplace_back(
new FakeUpstream(createUpstreamSslContext(), endpoint->ip()->port(), version_, config));
}
bool use_h2_{};
std::vector<std::string> upstream_alpn_;
std::vector<std::string> configured_alpn_;
};
// No upstream ALPN is specified in the protocol, but we successfully negotiate h2 ALPN
// due to the default ALPN set through the HTTP/2 conn pool.
TEST_F(AlpnSelectionIntegrationTest, Http2UpstreamMatchingAlpn) {
use_h2_ = true;
upstream_alpn_.emplace_back(Http::Utility::AlpnNames::get().Http2);
initialize();
codec_client_ = makeHttpConnection(lookupPort("http"));
IntegrationStreamDecoderPtr response =
codec_client_->makeHeaderOnlyRequest(default_request_headers_);
waitForNextUpstreamRequest();
EXPECT_EQ(Http::Utility::AlpnNames::get().Http2,
fake_upstream_connection_->connection().nextProtocol());
upstream_request_->encodeHeaders(default_response_headers_, true);
ASSERT_TRUE(response->waitForEndStream());
EXPECT_EQ("200", response->headers().getStatusValue());
}
// No upstream ALPN is specified in the protocol and we fail to negotiate h2 ALPN
// since the upstream doesn't list h2 in its ALPN list. Note that the call still goes
// through because ALPN negotiation failure doesn't necessarily fail the call.
// TODO(snowp): We should actually fail the handshake in case of negotiation failure,
// fix that and update these tests.
TEST_F(AlpnSelectionIntegrationTest, Http2UpstreamMismatchingAlpn) {
use_h2_ = true;
upstream_alpn_.emplace_back(Http::Utility::AlpnNames::get().Http11);
initialize();
codec_client_ = makeHttpConnection(lookupPort("http"));
IntegrationStreamDecoderPtr response =
codec_client_->makeHeaderOnlyRequest(default_request_headers_);
waitForNextUpstreamRequest();
// No ALPN negotiated.
EXPECT_EQ("", fake_upstream_connection_->connection().nextProtocol());
upstream_request_->encodeHeaders(default_response_headers_, true);
ASSERT_TRUE(response->waitForEndStream());
EXPECT_EQ("200", response->headers().getStatusValue());
}
// The upstream supports h2,custom-alpn, and we configure the upstream TLS context to negotiate
// custom-alpn. No attempt to negotiate h2 should happen, so we should select custom-alpn.
TEST_F(AlpnSelectionIntegrationTest, Http2UpstreamConfiguredALPN) {
use_h2_ = true;
upstream_alpn_.emplace_back(Http::Utility::AlpnNames::get().Http2);
upstream_alpn_.emplace_back("custom-alpn");
configured_alpn_.emplace_back("custom-alpn");
initialize();
codec_client_ = makeHttpConnection(lookupPort("http"));
IntegrationStreamDecoderPtr response =
codec_client_->makeHeaderOnlyRequest(default_request_headers_);
waitForNextUpstreamRequest();
EXPECT_EQ("custom-alpn", fake_upstream_connection_->connection().nextProtocol());
upstream_request_->encodeHeaders(default_response_headers_, true);
ASSERT_TRUE(response->waitForEndStream());
EXPECT_EQ("200", response->headers().getStatusValue());
}
// No upstream ALPN is specified in the protocol, but we successfully negotiate http/1.1 ALPN
// due to the default ALPN set through the HTTP/1.1 conn pool.
TEST_F(AlpnSelectionIntegrationTest, Http11UpstreaMatchingAlpn) {
upstream_alpn_.emplace_back(Http::Utility::AlpnNames::get().Http11);
initialize();
codec_client_ = makeHttpConnection(lookupPort("http"));
IntegrationStreamDecoderPtr response =
codec_client_->makeHeaderOnlyRequest(default_request_headers_);
waitForNextUpstreamRequest();
EXPECT_EQ(Http::Utility::AlpnNames::get().Http11,
fake_upstream_connection_->connection().nextProtocol());
upstream_request_->encodeHeaders(default_response_headers_, true);
ASSERT_TRUE(response->waitForEndStream());
EXPECT_EQ("200", response->headers().getStatusValue());
}
// The upstream only lists h2 but we attempt to negotiate http/1.1 due to the default ALPN set by
// the conn pool. This results in no protocol being negotiated. Note that the call still goes
// through because ALPN negotiation failure doesn't necessarily fail the call.
TEST_F(AlpnSelectionIntegrationTest, Http11UpstreaMismatchingAlpn) {
upstream_alpn_.emplace_back(Http::Utility::AlpnNames::get().Http2);
initialize();
codec_client_ = makeHttpConnection(lookupPort("http"));
IntegrationStreamDecoderPtr response =
codec_client_->makeHeaderOnlyRequest(default_request_headers_);
waitForNextUpstreamRequest();
// No ALPN selected.
EXPECT_EQ("", fake_upstream_connection_->connection().nextProtocol());
upstream_request_->encodeHeaders(default_response_headers_, true);
ASSERT_TRUE(response->waitForEndStream());
EXPECT_EQ("200", response->headers().getStatusValue());
}
// The upstream supports http/1.1,custom-alpn, and we configure the upstream TLS context to
// negotiate custom-alpn. No attempt to negotiate http/1.1 should happen, so we should select
// custom-alpn.
// TODO(snowp): We should actually fail the handshake in case of negotiation failure,
// fix that and update these tests.
TEST_F(AlpnSelectionIntegrationTest, Http11UpstreamConfiguredALPN) {
upstream_alpn_.emplace_back(Http::Utility::AlpnNames::get().Http11);
upstream_alpn_.emplace_back("custom-alpn");
configured_alpn_.emplace_back("custom-alpn");
initialize();
codec_client_ = makeHttpConnection(lookupPort("http"));
IntegrationStreamDecoderPtr response =
codec_client_->makeHeaderOnlyRequest(default_request_headers_);
waitForNextUpstreamRequest();
EXPECT_EQ("custom-alpn", fake_upstream_connection_->connection().nextProtocol());
upstream_request_->encodeHeaders(default_response_headers_, true);
ASSERT_TRUE(response->waitForEndStream());
EXPECT_EQ("200", response->headers().getStatusValue());
}
} // namespace Envoy