| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "net/third_party/quiche/src/quic/tools/quic_simple_server_session.h" |
| |
| #include <algorithm> |
| #include <memory> |
| |
| #include "net/third_party/quiche/src/quic/core/crypto/quic_crypto_server_config.h" |
| #include "net/third_party/quiche/src/quic/core/crypto/quic_random.h" |
| #include "net/third_party/quiche/src/quic/core/proto/cached_network_parameters.pb.h" |
| #include "net/third_party/quiche/src/quic/core/quic_connection.h" |
| #include "net/third_party/quiche/src/quic/core/quic_crypto_server_stream.h" |
| #include "net/third_party/quiche/src/quic/core/quic_utils.h" |
| #include "net/third_party/quiche/src/quic/core/tls_server_handshaker.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_containers.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_expect_bug.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_flags.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_ptr_util.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_socket_address.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_string_piece.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_test.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_text_utils.h" |
| #include "net/third_party/quiche/src/quic/test_tools/crypto_test_utils.h" |
| #include "net/third_party/quiche/src/quic/test_tools/mock_quic_session_visitor.h" |
| #include "net/third_party/quiche/src/quic/test_tools/quic_config_peer.h" |
| #include "net/third_party/quiche/src/quic/test_tools/quic_connection_peer.h" |
| #include "net/third_party/quiche/src/quic/test_tools/quic_sent_packet_manager_peer.h" |
| #include "net/third_party/quiche/src/quic/test_tools/quic_session_peer.h" |
| #include "net/third_party/quiche/src/quic/test_tools/quic_spdy_session_peer.h" |
| #include "net/third_party/quiche/src/quic/test_tools/quic_stream_peer.h" |
| #include "net/third_party/quiche/src/quic/test_tools/quic_sustained_bandwidth_recorder_peer.h" |
| #include "net/third_party/quiche/src/quic/test_tools/quic_test_utils.h" |
| #include "net/third_party/quiche/src/quic/tools/quic_backend_response.h" |
| #include "net/third_party/quiche/src/quic/tools/quic_memory_cache_backend.h" |
| #include "net/third_party/quiche/src/quic/tools/quic_simple_server_stream.h" |
| |
| using testing::_; |
| using testing::AtLeast; |
| using testing::InSequence; |
| using testing::Invoke; |
| using testing::Return; |
| using testing::StrictMock; |
| |
| namespace quic { |
| namespace test { |
| namespace { |
| typedef QuicSimpleServerSession::PromisedStreamInfo PromisedStreamInfo; |
| } // namespace |
| |
| class QuicSimpleServerSessionPeer { |
| public: |
| static void SetCryptoStream(QuicSimpleServerSession* s, |
| QuicCryptoServerStream* crypto_stream) { |
| s->crypto_stream_.reset(crypto_stream); |
| s->RegisterStaticStream( |
| QuicUtils::GetCryptoStreamId(s->connection()->transport_version()), |
| crypto_stream); |
| } |
| |
| static QuicSpdyStream* CreateIncomingStream(QuicSimpleServerSession* s, |
| QuicStreamId id) { |
| return s->CreateIncomingStream(id); |
| } |
| |
| static QuicSimpleServerStream* CreateOutgoingUnidirectionalStream( |
| QuicSimpleServerSession* s) { |
| return s->CreateOutgoingUnidirectionalStream(); |
| } |
| }; |
| |
| namespace { |
| |
| const size_t kMaxStreamsForTest = 10; |
| |
| class MockQuicCryptoServerStream : public QuicCryptoServerStream { |
| public: |
| explicit MockQuicCryptoServerStream( |
| const QuicCryptoServerConfig* crypto_config, |
| QuicCompressedCertsCache* compressed_certs_cache, |
| QuicServerSessionBase* session, |
| QuicCryptoServerStream::Helper* helper) |
| : QuicCryptoServerStream( |
| crypto_config, |
| compressed_certs_cache, |
| GetQuicReloadableFlag( |
| enable_quic_stateless_reject_support), // NOLINT |
| session, |
| helper) {} |
| MockQuicCryptoServerStream(const MockQuicCryptoServerStream&) = delete; |
| MockQuicCryptoServerStream& operator=(const MockQuicCryptoServerStream&) = |
| delete; |
| ~MockQuicCryptoServerStream() override {} |
| |
| MOCK_METHOD1(SendServerConfigUpdate, |
| void(const CachedNetworkParameters* cached_network_parameters)); |
| |
| void set_encryption_established(bool has_established) { |
| encryption_established_override_ = has_established; |
| } |
| |
| bool encryption_established() const override { |
| return QuicCryptoServerStream::encryption_established() || |
| encryption_established_override_; |
| } |
| |
| private: |
| bool encryption_established_override_ = false; |
| }; |
| |
| class MockQuicConnectionWithSendStreamData : public MockQuicConnection { |
| public: |
| MockQuicConnectionWithSendStreamData( |
| MockQuicConnectionHelper* helper, |
| MockAlarmFactory* alarm_factory, |
| Perspective perspective, |
| const ParsedQuicVersionVector& supported_versions) |
| : MockQuicConnection(helper, |
| alarm_factory, |
| perspective, |
| supported_versions) { |
| auto consume_all_data = [](QuicStreamId id, size_t write_length, |
| QuicStreamOffset offset, |
| StreamSendingState state) { |
| return QuicConsumedData(write_length, state != NO_FIN); |
| }; |
| ON_CALL(*this, SendStreamData(_, _, _, _)) |
| .WillByDefault(Invoke(consume_all_data)); |
| } |
| |
| MOCK_METHOD4(SendStreamData, |
| QuicConsumedData(QuicStreamId id, |
| size_t write_length, |
| QuicStreamOffset offset, |
| StreamSendingState state)); |
| }; |
| |
| class MockQuicSimpleServerSession : public QuicSimpleServerSession { |
| public: |
| MockQuicSimpleServerSession( |
| const QuicConfig& config, |
| QuicConnection* connection, |
| QuicSession::Visitor* visitor, |
| QuicCryptoServerStream::Helper* helper, |
| const QuicCryptoServerConfig* crypto_config, |
| QuicCompressedCertsCache* compressed_certs_cache, |
| QuicSimpleServerBackend* quic_simple_server_backend) |
| : QuicSimpleServerSession(config, |
| CurrentSupportedVersions(), |
| connection, |
| visitor, |
| helper, |
| crypto_config, |
| compressed_certs_cache, |
| quic_simple_server_backend) {} |
| // Methods taking non-copyable types like SpdyHeaderBlock by value cannot be |
| // mocked directly. |
| size_t WritePushPromise(QuicStreamId original_stream_id, |
| QuicStreamId promised_stream_id, |
| spdy::SpdyHeaderBlock headers) override { |
| return WritePushPromiseMock(original_stream_id, promised_stream_id, |
| headers); |
| } |
| MOCK_METHOD3(WritePushPromiseMock, |
| size_t(QuicStreamId original_stream_id, |
| QuicStreamId promised_stream_id, |
| const spdy::SpdyHeaderBlock& headers)); |
| |
| MOCK_METHOD1(SendBlocked, void(QuicStreamId)); |
| }; |
| |
| class QuicSimpleServerSessionTest |
| : public QuicTestWithParam<ParsedQuicVersion> { |
| public: |
| bool ClearControlFrame(const QuicFrame& frame) { |
| DeleteFrame(&const_cast<QuicFrame&>(frame)); |
| return true; |
| } |
| |
| // The function ensures that A) the MAX_STREAMS frames get properly deleted |
| // (since the test uses a 'did we leak memory' check ... if we just lose the |
| // frame, the test fails) and B) returns true (instead of the default, false) |
| // which ensures that the rest of the system thinks that the frame actually |
| // was transmitted. |
| bool ClearMaxStreamsControlFrame(const QuicFrame& frame) { |
| if (frame.type == MAX_STREAMS_FRAME) { |
| DeleteFrame(&const_cast<QuicFrame&>(frame)); |
| return true; |
| } |
| return false; |
| } |
| |
| protected: |
| QuicSimpleServerSessionTest() |
| : crypto_config_(QuicCryptoServerConfig::TESTING, |
| QuicRandom::GetInstance(), |
| crypto_test_utils::ProofSourceForTesting(), |
| KeyExchangeSource::Default(), |
| TlsServerHandshaker::CreateSslCtx()), |
| compressed_certs_cache_( |
| QuicCompressedCertsCache::kQuicCompressedCertsCacheSize) { |
| config_.SetMaxIncomingDynamicStreamsToSend(kMaxStreamsForTest); |
| QuicConfigPeer::SetReceivedMaxIncomingDynamicStreams(&config_, |
| kMaxStreamsForTest); |
| config_.SetInitialStreamFlowControlWindowToSend( |
| kInitialStreamFlowControlWindowForTest); |
| config_.SetInitialSessionFlowControlWindowToSend( |
| kInitialSessionFlowControlWindowForTest); |
| |
| ParsedQuicVersionVector supported_versions = SupportedVersions(GetParam()); |
| connection_ = new StrictMock<MockQuicConnectionWithSendStreamData>( |
| &helper_, &alarm_factory_, Perspective::IS_SERVER, supported_versions); |
| connection_->AdvanceTime(QuicTime::Delta::FromSeconds(1)); |
| session_ = QuicMakeUnique<MockQuicSimpleServerSession>( |
| config_, connection_, &owner_, &stream_helper_, &crypto_config_, |
| &compressed_certs_cache_, &memory_cache_backend_); |
| MockClock clock; |
| handshake_message_ = crypto_config_.AddDefaultConfig( |
| QuicRandom::GetInstance(), &clock, |
| QuicCryptoServerConfig::ConfigOptions()); |
| session_->Initialize(); |
| QuicSessionPeer::GetMutableCryptoStream(session_.get()) |
| ->OnSuccessfulVersionNegotiation(supported_versions.front()); |
| visitor_ = QuicConnectionPeer::GetVisitor(connection_); |
| |
| if (IsVersion99()) { |
| EXPECT_CALL(*connection_, SendControlFrame(_)) |
| .WillRepeatedly(Invoke( |
| this, &QuicSimpleServerSessionTest::ClearMaxStreamsControlFrame)); |
| } |
| session_->OnConfigNegotiated(); |
| } |
| |
| QuicStreamId GetNthClientInitiatedBidirectionalId(int n) { |
| return GetNthClientInitiatedBidirectionalStreamId( |
| connection_->transport_version(), n); |
| } |
| |
| QuicStreamId GetNthServerInitiatedUnidirectionalId(int n) { |
| return quic::test::GetNthServerInitiatedUnidirectionalStreamId( |
| connection_->transport_version(), n); |
| } |
| |
| bool IsVersion99() const { |
| return connection_->transport_version() == QUIC_VERSION_99; |
| } |
| |
| void InjectStopSending(QuicStreamId stream_id, |
| QuicRstStreamErrorCode rst_stream_code) { |
| // Create and inject a STOP_SENDING frame. In GOOGLE QUIC, receiving a |
| // RST_STREAM frame causes a two-way close. For IETF QUIC, RST_STREAM causes |
| // a one-way close. |
| if (!IsVersion99()) { |
| // Only needed for version 99/IETF QUIC. |
| return; |
| } |
| EXPECT_CALL(owner_, OnStopSendingReceived(_)).Times(1); |
| QuicStopSendingFrame stop_sending( |
| kInvalidControlFrameId, stream_id, |
| static_cast<QuicApplicationErrorCode>(rst_stream_code)); |
| // Expect the RESET_STREAM that is generated in response to receiving a |
| // STOP_SENDING. |
| EXPECT_CALL(*connection_, OnStreamReset(stream_id, rst_stream_code)); |
| session_->OnStopSendingFrame(stop_sending); |
| } |
| |
| StrictMock<MockQuicSessionVisitor> owner_; |
| StrictMock<MockQuicCryptoServerStreamHelper> stream_helper_; |
| MockQuicConnectionHelper helper_; |
| MockAlarmFactory alarm_factory_; |
| StrictMock<MockQuicConnectionWithSendStreamData>* connection_; |
| QuicConfig config_; |
| QuicCryptoServerConfig crypto_config_; |
| QuicCompressedCertsCache compressed_certs_cache_; |
| QuicMemoryCacheBackend memory_cache_backend_; |
| std::unique_ptr<MockQuicSimpleServerSession> session_; |
| std::unique_ptr<CryptoHandshakeMessage> handshake_message_; |
| QuicConnectionVisitorInterface* visitor_; |
| }; |
| |
| INSTANTIATE_TEST_SUITE_P(Tests, |
| QuicSimpleServerSessionTest, |
| ::testing::ValuesIn(AllSupportedVersions())); |
| |
| TEST_P(QuicSimpleServerSessionTest, CloseStreamDueToReset) { |
| // Open a stream, then reset it. |
| // Send two bytes of payload to open it. |
| QuicStreamFrame data1(GetNthClientInitiatedBidirectionalId(0), false, 0, |
| QuicStringPiece("HT")); |
| session_->OnStreamFrame(data1); |
| EXPECT_EQ(1u, session_->GetNumOpenIncomingStreams()); |
| |
| // Receive a reset (and send a RST in response). |
| QuicRstStreamFrame rst1(kInvalidControlFrameId, |
| GetNthClientInitiatedBidirectionalId(0), |
| QUIC_ERROR_PROCESSING_STREAM, 0); |
| EXPECT_CALL(owner_, OnRstStreamReceived(_)).Times(1); |
| EXPECT_CALL(*connection_, SendControlFrame(_)); |
| if (!IsVersion99()) { |
| // For version 99, this is covered in InjectStopSending() |
| EXPECT_CALL(*connection_, |
| OnStreamReset(GetNthClientInitiatedBidirectionalId(0), |
| QUIC_RST_ACKNOWLEDGEMENT)); |
| } |
| visitor_->OnRstStream(rst1); |
| // Create and inject a STOP_SENDING frame. In GOOGLE QUIC, receiving a |
| // RST_STREAM frame causes a two-way close. For IETF QUIC, RST_STREAM causes |
| // a one-way close. |
| InjectStopSending(GetNthClientInitiatedBidirectionalId(0), |
| QUIC_ERROR_PROCESSING_STREAM); |
| EXPECT_EQ(0u, session_->GetNumOpenIncomingStreams()); |
| |
| // Send the same two bytes of payload in a new packet. |
| visitor_->OnStreamFrame(data1); |
| |
| // The stream should not be re-opened. |
| EXPECT_EQ(0u, session_->GetNumOpenIncomingStreams()); |
| EXPECT_TRUE(connection_->connected()); |
| } |
| |
| TEST_P(QuicSimpleServerSessionTest, NeverOpenStreamDueToReset) { |
| // Send a reset (and expect the peer to send a RST in response). |
| QuicRstStreamFrame rst1(kInvalidControlFrameId, |
| GetNthClientInitiatedBidirectionalId(0), |
| QUIC_ERROR_PROCESSING_STREAM, 0); |
| EXPECT_CALL(owner_, OnRstStreamReceived(_)).Times(1); |
| if (!IsVersion99()) { |
| EXPECT_CALL(*connection_, SendControlFrame(_)); |
| // For version 99, this is covered in InjectStopSending() |
| EXPECT_CALL(*connection_, |
| OnStreamReset(GetNthClientInitiatedBidirectionalId(0), |
| QUIC_RST_ACKNOWLEDGEMENT)); |
| } |
| visitor_->OnRstStream(rst1); |
| // Create and inject a STOP_SENDING frame. In GOOGLE QUIC, receiving a |
| // RST_STREAM frame causes a two-way close. For IETF QUIC, RST_STREAM causes |
| // a one-way close. |
| InjectStopSending(GetNthClientInitiatedBidirectionalId(0), |
| QUIC_ERROR_PROCESSING_STREAM); |
| |
| EXPECT_EQ(0u, session_->GetNumOpenIncomingStreams()); |
| |
| // Send two bytes of payload. |
| QuicStreamFrame data1(GetNthClientInitiatedBidirectionalId(0), false, 0, |
| QuicStringPiece("HT")); |
| visitor_->OnStreamFrame(data1); |
| |
| // The stream should never be opened, now that the reset is received. |
| EXPECT_EQ(0u, session_->GetNumOpenIncomingStreams()); |
| EXPECT_TRUE(connection_->connected()); |
| } |
| |
| TEST_P(QuicSimpleServerSessionTest, AcceptClosedStream) { |
| // Send (empty) compressed headers followed by two bytes of data. |
| QuicStreamFrame frame1(GetNthClientInitiatedBidirectionalId(0), false, 0, |
| QuicStringPiece("\1\0\0\0\0\0\0\0HT")); |
| QuicStreamFrame frame2(GetNthClientInitiatedBidirectionalId(1), false, 0, |
| QuicStringPiece("\2\0\0\0\0\0\0\0HT")); |
| visitor_->OnStreamFrame(frame1); |
| visitor_->OnStreamFrame(frame2); |
| EXPECT_EQ(2u, session_->GetNumOpenIncomingStreams()); |
| |
| // Send a reset (and expect the peer to send a RST in response). |
| QuicRstStreamFrame rst(kInvalidControlFrameId, |
| GetNthClientInitiatedBidirectionalId(0), |
| QUIC_ERROR_PROCESSING_STREAM, 0); |
| EXPECT_CALL(owner_, OnRstStreamReceived(_)).Times(1); |
| if (!IsVersion99()) { |
| EXPECT_CALL(*connection_, SendControlFrame(_)); |
| // For version 99, this is covered in InjectStopSending() |
| EXPECT_CALL(*connection_, |
| OnStreamReset(GetNthClientInitiatedBidirectionalId(0), |
| QUIC_RST_ACKNOWLEDGEMENT)); |
| } |
| visitor_->OnRstStream(rst); |
| // Create and inject a STOP_SENDING frame. In GOOGLE QUIC, receiving a |
| // RST_STREAM frame causes a two-way close. For IETF QUIC, RST_STREAM causes |
| // a one-way close. |
| InjectStopSending(GetNthClientInitiatedBidirectionalId(0), |
| QUIC_ERROR_PROCESSING_STREAM); |
| |
| // If we were tracking, we'd probably want to reject this because it's data |
| // past the reset point of stream 3. As it's a closed stream we just drop the |
| // data on the floor, but accept the packet because it has data for stream 5. |
| QuicStreamFrame frame3(GetNthClientInitiatedBidirectionalId(0), false, 2, |
| QuicStringPiece("TP")); |
| QuicStreamFrame frame4(GetNthClientInitiatedBidirectionalId(1), false, 2, |
| QuicStringPiece("TP")); |
| visitor_->OnStreamFrame(frame3); |
| visitor_->OnStreamFrame(frame4); |
| // The stream should never be opened, now that the reset is received. |
| EXPECT_EQ(1u, session_->GetNumOpenIncomingStreams()); |
| EXPECT_TRUE(connection_->connected()); |
| } |
| |
| TEST_P(QuicSimpleServerSessionTest, CreateIncomingStreamDisconnected) { |
| // EXPECT_QUIC_BUG tests are expensive so only run one instance of them. |
| if (GetParam() != AllSupportedVersions()[0]) { |
| return; |
| } |
| |
| // Tests that incoming stream creation fails when connection is not connected. |
| size_t initial_num_open_stream = session_->GetNumOpenIncomingStreams(); |
| QuicConnectionPeer::TearDownLocalConnectionState(connection_); |
| EXPECT_QUIC_BUG(QuicSimpleServerSessionPeer::CreateIncomingStream( |
| session_.get(), GetNthClientInitiatedBidirectionalId(0)), |
| "ShouldCreateIncomingStream called when disconnected"); |
| EXPECT_EQ(initial_num_open_stream, session_->GetNumOpenIncomingStreams()); |
| } |
| |
| TEST_P(QuicSimpleServerSessionTest, CreateEvenIncomingDynamicStream) { |
| // Tests that incoming stream creation fails when given stream id is even. |
| size_t initial_num_open_stream = session_->GetNumOpenIncomingStreams(); |
| EXPECT_CALL(*connection_, |
| CloseConnection(QUIC_INVALID_STREAM_ID, |
| "Client created even numbered stream", _)); |
| QuicSimpleServerSessionPeer::CreateIncomingStream( |
| session_.get(), GetNthServerInitiatedUnidirectionalId(0)); |
| EXPECT_EQ(initial_num_open_stream, session_->GetNumOpenIncomingStreams()); |
| } |
| |
| TEST_P(QuicSimpleServerSessionTest, CreateIncomingStream) { |
| QuicSpdyStream* stream = QuicSimpleServerSessionPeer::CreateIncomingStream( |
| session_.get(), GetNthClientInitiatedBidirectionalId(0)); |
| EXPECT_NE(nullptr, stream); |
| EXPECT_EQ(GetNthClientInitiatedBidirectionalId(0), stream->id()); |
| } |
| |
| TEST_P(QuicSimpleServerSessionTest, CreateOutgoingDynamicStreamDisconnected) { |
| // EXPECT_QUIC_BUG tests are expensive so only run one instance of them. |
| if (GetParam() != AllSupportedVersions()[0]) { |
| return; |
| } |
| |
| // Tests that outgoing stream creation fails when connection is not connected. |
| size_t initial_num_open_stream = session_->GetNumOpenOutgoingStreams(); |
| QuicConnectionPeer::TearDownLocalConnectionState(connection_); |
| EXPECT_QUIC_BUG( |
| QuicSimpleServerSessionPeer::CreateOutgoingUnidirectionalStream( |
| session_.get()), |
| "ShouldCreateOutgoingUnidirectionalStream called when disconnected"); |
| |
| EXPECT_EQ(initial_num_open_stream, session_->GetNumOpenOutgoingStreams()); |
| } |
| |
| TEST_P(QuicSimpleServerSessionTest, CreateOutgoingDynamicStreamUnencrypted) { |
| // EXPECT_QUIC_BUG tests are expensive so only run one instance of them. |
| if (GetParam() != AllSupportedVersions()[0]) { |
| return; |
| } |
| |
| // Tests that outgoing stream creation fails when encryption has not yet been |
| // established. |
| size_t initial_num_open_stream = session_->GetNumOpenOutgoingStreams(); |
| EXPECT_QUIC_BUG( |
| QuicSimpleServerSessionPeer::CreateOutgoingUnidirectionalStream( |
| session_.get()), |
| "Encryption not established so no outgoing stream created."); |
| EXPECT_EQ(initial_num_open_stream, session_->GetNumOpenOutgoingStreams()); |
| } |
| |
| TEST_P(QuicSimpleServerSessionTest, CreateOutgoingDynamicStreamUptoLimit) { |
| // Tests that outgoing stream creation should not be affected by existing |
| // incoming stream and vice-versa. But when reaching the limit of max outgoing |
| // stream allowed, creation should fail. |
| |
| // Receive some data to initiate a incoming stream which should not effect |
| // creating outgoing streams. |
| QuicStreamFrame data1(GetNthClientInitiatedBidirectionalId(0), false, 0, |
| QuicStringPiece("HT")); |
| session_->OnStreamFrame(data1); |
| EXPECT_EQ(1u, session_->GetNumOpenIncomingStreams()); |
| EXPECT_EQ(0u, session_->GetNumOpenOutgoingStreams()); |
| |
| session_->UnregisterStreamPriority( |
| QuicUtils::GetHeadersStreamId(connection_->transport_version()), |
| /*is_static=*/true); |
| // Assume encryption already established. |
| QuicSimpleServerSessionPeer::SetCryptoStream(session_.get(), nullptr); |
| MockQuicCryptoServerStream* crypto_stream = |
| new MockQuicCryptoServerStream(&crypto_config_, &compressed_certs_cache_, |
| session_.get(), &stream_helper_); |
| crypto_stream->set_encryption_established(true); |
| QuicSimpleServerSessionPeer::SetCryptoStream(session_.get(), crypto_stream); |
| session_->RegisterStreamPriority( |
| QuicUtils::GetHeadersStreamId(connection_->transport_version()), |
| /*is_static=*/true, QuicStream::kDefaultPriority); |
| |
| // Create push streams till reaching the upper limit of allowed open streams. |
| for (size_t i = 0; i < kMaxStreamsForTest; ++i) { |
| QuicSpdyStream* created_stream = |
| QuicSimpleServerSessionPeer::CreateOutgoingUnidirectionalStream( |
| session_.get()); |
| EXPECT_EQ(GetNthServerInitiatedUnidirectionalId(i), created_stream->id()); |
| EXPECT_EQ(i + 1, session_->GetNumOpenOutgoingStreams()); |
| } |
| |
| // Continuing creating push stream would fail. |
| EXPECT_EQ(nullptr, |
| QuicSimpleServerSessionPeer::CreateOutgoingUnidirectionalStream( |
| session_.get())); |
| EXPECT_EQ(kMaxStreamsForTest, session_->GetNumOpenOutgoingStreams()); |
| |
| // Create peer initiated stream should have no problem. |
| QuicStreamFrame data2(GetNthClientInitiatedBidirectionalId(1), false, 0, |
| QuicStringPiece("HT")); |
| session_->OnStreamFrame(data2); |
| EXPECT_EQ(2u, session_->GetNumOpenIncomingStreams()); |
| } |
| |
| TEST_P(QuicSimpleServerSessionTest, OnStreamFrameWithEvenStreamId) { |
| QuicStreamFrame frame(GetNthServerInitiatedUnidirectionalId(0), false, 0, |
| QuicStringPiece()); |
| EXPECT_CALL(*connection_, |
| CloseConnection(QUIC_INVALID_STREAM_ID, |
| "Client sent data on server push stream", _)); |
| session_->OnStreamFrame(frame); |
| } |
| |
| TEST_P(QuicSimpleServerSessionTest, GetEvenIncomingError) { |
| // Tests that calling GetOrCreateDynamicStream() on an outgoing stream not |
| // promised yet should result close connection. |
| EXPECT_CALL(*connection_, CloseConnection(QUIC_INVALID_STREAM_ID, |
| "Data for nonexistent stream", _)); |
| EXPECT_EQ(nullptr, |
| QuicSessionPeer::GetOrCreateDynamicStream( |
| session_.get(), GetNthServerInitiatedUnidirectionalId(1))); |
| } |
| |
| // In order to test the case where server push stream creation goes beyond |
| // limit, server push streams need to be hanging there instead of |
| // immediately closing after sending back response. |
| // To achieve this goal, this class resets flow control windows so that large |
| // responses will not be sent fully in order to prevent push streams from being |
| // closed immediately. |
| // Also adjust connection-level flow control window to ensure a large response |
| // can cause stream-level flow control blocked but not connection-level. |
| class QuicSimpleServerSessionServerPushTest |
| : public QuicSimpleServerSessionTest { |
| protected: |
| const size_t kStreamFlowControlWindowSize = 32 * 1024; // 32KB. |
| |
| QuicSimpleServerSessionServerPushTest() { |
| // Reset stream level flow control window to be 32KB. |
| QuicConfigPeer::SetReceivedInitialStreamFlowControlWindow( |
| &config_, kStreamFlowControlWindowSize); |
| // Reset connection level flow control window to be 1.5 MB which is large |
| // enough that it won't block any stream to write before stream level flow |
| // control blocks it. |
| QuicConfigPeer::SetReceivedInitialSessionFlowControlWindow( |
| &config_, kInitialSessionFlowControlWindowForTest); |
| |
| ParsedQuicVersionVector supported_versions = SupportedVersions(GetParam()); |
| connection_ = new StrictMock<MockQuicConnectionWithSendStreamData>( |
| &helper_, &alarm_factory_, Perspective::IS_SERVER, supported_versions); |
| session_ = QuicMakeUnique<MockQuicSimpleServerSession>( |
| config_, connection_, &owner_, &stream_helper_, &crypto_config_, |
| &compressed_certs_cache_, &memory_cache_backend_); |
| session_->Initialize(); |
| QuicSessionPeer::GetMutableCryptoStream(session_.get()) |
| ->OnSuccessfulVersionNegotiation(supported_versions.front()); |
| // Needed to make new session flow control window and server push work. |
| |
| if (IsVersion99()) { |
| EXPECT_CALL(*connection_, SendControlFrame(_)) |
| .WillRepeatedly(Invoke(this, &QuicSimpleServerSessionServerPushTest:: |
| ClearMaxStreamsControlFrame)); |
| } |
| session_->OnConfigNegotiated(); |
| |
| visitor_ = QuicConnectionPeer::GetVisitor(connection_); |
| |
| session_->UnregisterStreamPriority( |
| QuicUtils::GetHeadersStreamId(connection_->transport_version()), |
| /*is_static=*/true); |
| QuicSimpleServerSessionPeer::SetCryptoStream(session_.get(), nullptr); |
| // Assume encryption already established. |
| MockQuicCryptoServerStream* crypto_stream = new MockQuicCryptoServerStream( |
| &crypto_config_, &compressed_certs_cache_, session_.get(), |
| &stream_helper_); |
| |
| crypto_stream->set_encryption_established(true); |
| QuicSimpleServerSessionPeer::SetCryptoStream(session_.get(), crypto_stream); |
| session_->RegisterStreamPriority( |
| QuicUtils::GetHeadersStreamId(connection_->transport_version()), |
| /*is_static=*/true, QuicStream::kDefaultPriority); |
| } |
| |
| // Given |num_resources|, create this number of fake push resources and push |
| // them by sending PUSH_PROMISE for all and sending push responses for as much |
| // as possible(limited by kMaxStreamsForTest). |
| // If |num_resources| > kMaxStreamsForTest, the left over will be queued. |
| // Returns the length of the DATA frame header, or 0 if the version does not |
| // use DATA frames. |
| QuicByteCount PromisePushResources(size_t num_resources) { |
| // testing::InSequence seq; |
| // To prevent push streams from being closed the response need to be larger |
| // than stream flow control window so stream won't send the full body. |
| size_t body_size = 2 * kStreamFlowControlWindowSize; // 64KB. |
| |
| std::string request_url = "mail.google.com/"; |
| spdy::SpdyHeaderBlock request_headers; |
| std::string resource_host = "www.google.com"; |
| std::string partial_push_resource_path = "/server_push_src"; |
| std::list<QuicBackendResponse::ServerPushInfo> push_resources; |
| std::string scheme = "http"; |
| QuicByteCount data_frame_header_length = 0; |
| for (unsigned int i = 1; i <= num_resources; ++i) { |
| QuicStreamId stream_id = GetNthServerInitiatedUnidirectionalId(i - 1); |
| std::string path = |
| partial_push_resource_path + QuicTextUtils::Uint64ToString(i); |
| std::string url = scheme + "://" + resource_host + path; |
| QuicUrl resource_url = QuicUrl(url); |
| std::string body(body_size, 'a'); |
| std::string data; |
| data_frame_header_length = 0; |
| if (VersionHasDataFrameHeader(connection_->transport_version())) { |
| HttpEncoder encoder; |
| std::unique_ptr<char[]> buffer; |
| data_frame_header_length = |
| encoder.SerializeDataFrameHeader(body.length(), &buffer); |
| std::string header(buffer.get(), data_frame_header_length); |
| data = header + body; |
| } else { |
| data = body; |
| } |
| |
| memory_cache_backend_.AddSimpleResponse(resource_host, path, 200, data); |
| push_resources.push_back(QuicBackendResponse::ServerPushInfo( |
| resource_url, spdy::SpdyHeaderBlock(), QuicStream::kDefaultPriority, |
| body)); |
| // PUSH_PROMISED are sent for all the resources. |
| EXPECT_CALL(*session_, |
| WritePushPromiseMock(GetNthClientInitiatedBidirectionalId(0), |
| stream_id, _)); |
| if (i <= kMaxStreamsForTest) { |
| // |kMaxStreamsForTest| promised responses should be sent. |
| // Since flow control window is smaller than response body, not the |
| // whole body will be sent. |
| QuicStreamOffset offset = 0; |
| if (VersionHasDataFrameHeader(connection_->transport_version())) { |
| EXPECT_CALL(*connection_, |
| SendStreamData(stream_id, data_frame_header_length, |
| offset, NO_FIN)); |
| offset += data_frame_header_length; |
| } |
| EXPECT_CALL(*connection_, SendStreamData(stream_id, _, offset, NO_FIN)) |
| .WillOnce(Return(QuicConsumedData( |
| kStreamFlowControlWindowSize - offset, false))); |
| EXPECT_CALL(*session_, SendBlocked(stream_id)); |
| } |
| } |
| session_->PromisePushResources(request_url, push_resources, |
| GetNthClientInitiatedBidirectionalId(0), |
| request_headers); |
| return data_frame_header_length; |
| } |
| |
| void ConsumeHeadersStreamData() { |
| QuicStreamId headers_stream_id = |
| QuicUtils::GetHeadersStreamId(connection_->transport_version()); |
| EXPECT_CALL(*connection_, SendStreamData(headers_stream_id, _, _, _)) |
| .Times(AtLeast(1)); |
| } |
| }; |
| |
| INSTANTIATE_TEST_SUITE_P(Tests, |
| QuicSimpleServerSessionServerPushTest, |
| ::testing::ValuesIn(AllSupportedVersions())); |
| |
| // Tests that given more than kMaxStreamsForTest resources, all their |
| // PUSH_PROMISE's will be sent out and only kMaxStreamsForTest streams will be |
| // opened and send push response. |
| TEST_P(QuicSimpleServerSessionServerPushTest, TestPromisePushResources) { |
| ConsumeHeadersStreamData(); |
| size_t num_resources = kMaxStreamsForTest + 5; |
| PromisePushResources(num_resources); |
| EXPECT_EQ(kMaxStreamsForTest, session_->GetNumOpenOutgoingStreams()); |
| } |
| |
| // Tests that after promised stream queued up, when an opened stream is marked |
| // draining, a queued promised stream will become open and send push response. |
| TEST_P(QuicSimpleServerSessionServerPushTest, |
| HandlePromisedPushRequestsAfterStreamDraining) { |
| ConsumeHeadersStreamData(); |
| size_t num_resources = kMaxStreamsForTest + 1; |
| QuicByteCount data_frame_header_length = PromisePushResources(num_resources); |
| QuicStreamId next_out_going_stream_id = |
| GetNthServerInitiatedUnidirectionalId(kMaxStreamsForTest); |
| |
| // After an open stream is marked draining, a new stream is expected to be |
| // created and a response sent on the stream. |
| QuicStreamOffset offset = 0; |
| if (VersionHasDataFrameHeader(connection_->transport_version())) { |
| EXPECT_CALL(*connection_, |
| SendStreamData(next_out_going_stream_id, |
| data_frame_header_length, offset, NO_FIN)); |
| offset += data_frame_header_length; |
| } |
| EXPECT_CALL(*connection_, |
| SendStreamData(next_out_going_stream_id, _, offset, NO_FIN)) |
| .WillOnce(Return( |
| QuicConsumedData(kStreamFlowControlWindowSize - offset, false))); |
| EXPECT_CALL(*session_, SendBlocked(next_out_going_stream_id)); |
| |
| if (IsVersion99()) { |
| // The PromisePushedResources call, above, will have used all available |
| // stream ids. For version 99, stream ids are not made available until |
| // a MAX_STREAMS frame is received. This emulates the reception of one. |
| // For pre-v-99, the node monitors its own stream usage and makes streams |
| // available as it closes/etc them. |
| session_->OnMaxStreamsFrame( |
| QuicMaxStreamsFrame(0, num_resources, /*unidirectional=*/true)); |
| } |
| |
| session_->StreamDraining(GetNthServerInitiatedUnidirectionalId(0)); |
| // Number of open outgoing streams should still be the same, because a new |
| // stream is opened. And the queue should be empty. |
| EXPECT_EQ(kMaxStreamsForTest, session_->GetNumOpenOutgoingStreams()); |
| } |
| |
| // Tests that after all resources are promised, a RST frame from client can |
| // prevent a promised resource to be send out. |
| TEST_P(QuicSimpleServerSessionServerPushTest, |
| ResetPromisedStreamToCancelServerPush) { |
| ConsumeHeadersStreamData(); |
| |
| // Having two extra resources to be send later. One of them will be reset, so |
| // when opened stream become close, only one will become open. |
| size_t num_resources = kMaxStreamsForTest + 2; |
| if (IsVersion99()) { |
| // V99 will send out a STREAMS_BLOCKED frame when it tries to exceed the |
| // limit. This will clear the frames so that they do not block the later |
| // rst-stream frame. |
| EXPECT_CALL(*connection_, SendControlFrame(_)) |
| .WillOnce(Invoke( |
| this, &QuicSimpleServerSessionServerPushTest::ClearControlFrame)); |
| } |
| QuicByteCount data_frame_header_length = PromisePushResources(num_resources); |
| |
| // Reset the last stream in the queue. It should be marked cancelled. |
| QuicStreamId stream_got_reset = |
| GetNthServerInitiatedUnidirectionalId(kMaxStreamsForTest + 1); |
| QuicRstStreamFrame rst(kInvalidControlFrameId, stream_got_reset, |
| QUIC_STREAM_CANCELLED, 0); |
| EXPECT_CALL(owner_, OnRstStreamReceived(_)).Times(1); |
| EXPECT_CALL(*connection_, SendControlFrame(_)) |
| .WillOnce(Invoke( |
| this, &QuicSimpleServerSessionServerPushTest::ClearControlFrame)); |
| EXPECT_CALL(*connection_, |
| OnStreamReset(stream_got_reset, QUIC_RST_ACKNOWLEDGEMENT)); |
| visitor_->OnRstStream(rst); |
| |
| // When the first 2 streams becomes draining, the two queued up stream could |
| // be created. But since one of them was marked cancelled due to RST frame, |
| // only one queued resource will be sent out. |
| QuicStreamId stream_not_reset = |
| GetNthServerInitiatedUnidirectionalId(kMaxStreamsForTest); |
| InSequence s; |
| QuicStreamOffset offset = 0; |
| if (VersionHasDataFrameHeader(connection_->transport_version())) { |
| EXPECT_CALL(*connection_, |
| SendStreamData(stream_not_reset, data_frame_header_length, |
| offset, NO_FIN)); |
| offset += data_frame_header_length; |
| } |
| EXPECT_CALL(*connection_, SendStreamData(stream_not_reset, _, offset, NO_FIN)) |
| .WillOnce(Return( |
| QuicConsumedData(kStreamFlowControlWindowSize - offset, false))); |
| EXPECT_CALL(*session_, SendBlocked(stream_not_reset)); |
| |
| if (IsVersion99()) { |
| // The PromisePushedResources call, above, will have used all available |
| // stream ids. For version 99, stream ids are not made available until |
| // a MAX_STREAMS frame is received. This emulates the reception of one. |
| // For pre-v-99, the node monitors its own stream usage and makes streams |
| // available as it closes/etc them. |
| session_->OnMaxStreamsFrame( |
| QuicMaxStreamsFrame(0, num_resources, /*unidirectional=*/true)); |
| } |
| session_->StreamDraining(GetNthServerInitiatedUnidirectionalId(0)); |
| session_->StreamDraining(GetNthServerInitiatedUnidirectionalId(1)); |
| } |
| |
| // Tests that closing a open outgoing stream can trigger a promised resource in |
| // the queue to be send out. |
| TEST_P(QuicSimpleServerSessionServerPushTest, |
| CloseStreamToHandleMorePromisedStream) { |
| ConsumeHeadersStreamData(); |
| size_t num_resources = kMaxStreamsForTest + 1; |
| if (IsVersion99()) { |
| // V99 will send out a stream-id-blocked frame when the we desired to exceed |
| // the limit. This will clear the frames so that they do not block the later |
| // rst-stream frame. |
| EXPECT_CALL(*connection_, SendControlFrame(_)) |
| .WillOnce(Invoke( |
| this, &QuicSimpleServerSessionServerPushTest::ClearControlFrame)); |
| } |
| QuicByteCount data_frame_header_length = PromisePushResources(num_resources); |
| QuicStreamId stream_to_open = |
| GetNthServerInitiatedUnidirectionalId(kMaxStreamsForTest); |
| |
| // Resetting 1st open stream will close the stream and give space for extra |
| // stream to be opened. |
| QuicStreamId stream_got_reset = GetNthServerInitiatedUnidirectionalId(0); |
| EXPECT_CALL(owner_, OnRstStreamReceived(_)).Times(1); |
| EXPECT_CALL(*connection_, SendControlFrame(_)); |
| if (!IsVersion99()) { |
| // For version 99, this is covered in InjectStopSending() |
| EXPECT_CALL(*connection_, |
| OnStreamReset(stream_got_reset, QUIC_RST_ACKNOWLEDGEMENT)); |
| } |
| QuicStreamOffset offset = 0; |
| if (VersionHasDataFrameHeader(connection_->transport_version())) { |
| EXPECT_CALL(*connection_, |
| SendStreamData(stream_to_open, data_frame_header_length, offset, |
| NO_FIN)); |
| offset += data_frame_header_length; |
| } |
| EXPECT_CALL(*connection_, SendStreamData(stream_to_open, _, offset, NO_FIN)) |
| .WillOnce(Return( |
| QuicConsumedData(kStreamFlowControlWindowSize - offset, false))); |
| |
| EXPECT_CALL(*session_, SendBlocked(stream_to_open)); |
| QuicRstStreamFrame rst(kInvalidControlFrameId, stream_got_reset, |
| QUIC_STREAM_CANCELLED, 0); |
| if (IsVersion99()) { |
| // The PromisePushedResources call, above, will have used all available |
| // stream ids. For version 99, stream ids are not made available until |
| // a MAX_STREAMS frame is received. This emulates the reception of one. |
| // For pre-v-99, the node monitors its own stream usage and makes streams |
| // available as it closes/etc them. |
| session_->OnMaxStreamsFrame( |
| QuicMaxStreamsFrame(0, num_resources, /*unidirectional=*/true)); |
| } |
| visitor_->OnRstStream(rst); |
| // Create and inject a STOP_SENDING frame. In GOOGLE QUIC, receiving a |
| // RST_STREAM frame causes a two-way close. For IETF QUIC, RST_STREAM causes |
| // a one-way close. |
| InjectStopSending(stream_got_reset, QUIC_STREAM_CANCELLED); |
| } |
| |
| } // namespace |
| } // namespace test |
| } // namespace quic |
