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// Copyright 2019 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 "quiche/quic/core/http/quic_receive_control_stream.h"
#include "absl/memory/memory.h"
#include "absl/strings/escaping.h"
#include "absl/strings/string_view.h"
#include "quiche/quic/core/http/http_constants.h"
#include "quiche/quic/core/qpack/qpack_header_table.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_utils.h"
#include "quiche/quic/test_tools/qpack/qpack_encoder_peer.h"
#include "quiche/quic/test_tools/quic_spdy_session_peer.h"
#include "quiche/quic/test_tools/quic_stream_peer.h"
#include "quiche/quic/test_tools/quic_test_utils.h"
#include "quiche/common/simple_buffer_allocator.h"
namespace quic {
class QpackEncoder;
namespace test {
namespace {
using ::testing::_;
using ::testing::AnyNumber;
using ::testing::StrictMock;
struct TestParams {
TestParams(const ParsedQuicVersion& version, Perspective perspective)
: version(version), perspective(perspective) {
QUIC_LOG(INFO) << "TestParams: " << *this;
}
TestParams(const TestParams& other)
: version(other.version), perspective(other.perspective) {}
friend std::ostream& operator<<(std::ostream& os, const TestParams& tp) {
os << "{ version: " << ParsedQuicVersionToString(tp.version)
<< ", perspective: "
<< (tp.perspective == Perspective::IS_CLIENT ? "client" : "server")
<< "}";
return os;
}
ParsedQuicVersion version;
Perspective perspective;
};
// Used by ::testing::PrintToStringParamName().
std::string PrintToString(const TestParams& tp) {
return absl::StrCat(
ParsedQuicVersionToString(tp.version), "_",
(tp.perspective == Perspective::IS_CLIENT ? "client" : "server"));
}
std::vector<TestParams> GetTestParams() {
std::vector<TestParams> params;
ParsedQuicVersionVector all_supported_versions = AllSupportedVersions();
for (const auto& version : AllSupportedVersions()) {
if (!VersionUsesHttp3(version.transport_version)) {
continue;
}
for (Perspective p : {Perspective::IS_SERVER, Perspective::IS_CLIENT}) {
params.emplace_back(version, p);
}
}
return params;
}
class TestStream : public QuicSpdyStream {
public:
TestStream(QuicStreamId id, QuicSpdySession* session)
: QuicSpdyStream(id, session, BIDIRECTIONAL) {}
~TestStream() override = default;
void OnBodyAvailable() override {}
};
class QuicReceiveControlStreamTest : public QuicTestWithParam<TestParams> {
public:
QuicReceiveControlStreamTest()
: connection_(new StrictMock<MockQuicConnection>(
&helper_, &alarm_factory_, perspective(),
SupportedVersions(GetParam().version))),
session_(connection_) {
EXPECT_CALL(session_, OnCongestionWindowChange(_)).Times(AnyNumber());
session_.Initialize();
QuicStreamId id = perspective() == Perspective::IS_SERVER
? GetNthClientInitiatedUnidirectionalStreamId(
session_.transport_version(), 3)
: GetNthServerInitiatedUnidirectionalStreamId(
session_.transport_version(), 3);
char type[] = {kControlStream};
QuicStreamFrame data1(id, false, 0, absl::string_view(type, 1));
session_.OnStreamFrame(data1);
receive_control_stream_ =
QuicSpdySessionPeer::GetReceiveControlStream(&session_);
stream_ = new TestStream(GetNthClientInitiatedBidirectionalStreamId(
GetParam().version.transport_version, 0),
&session_);
session_.ActivateStream(absl::WrapUnique(stream_));
}
Perspective perspective() const { return GetParam().perspective; }
QuicStreamOffset NumBytesConsumed() {
return QuicStreamPeer::sequencer(receive_control_stream_)
->NumBytesConsumed();
}
MockQuicConnectionHelper helper_;
MockAlarmFactory alarm_factory_;
StrictMock<MockQuicConnection>* connection_;
StrictMock<MockQuicSpdySession> session_;
QuicReceiveControlStream* receive_control_stream_;
TestStream* stream_;
};
INSTANTIATE_TEST_SUITE_P(Tests, QuicReceiveControlStreamTest,
::testing::ValuesIn(GetTestParams()),
::testing::PrintToStringParamName());
TEST_P(QuicReceiveControlStreamTest, ResetControlStream) {
EXPECT_TRUE(receive_control_stream_->is_static());
QuicRstStreamFrame rst_frame(kInvalidControlFrameId,
receive_control_stream_->id(),
QUIC_STREAM_CANCELLED, 1234);
EXPECT_CALL(*connection_,
CloseConnection(QUIC_HTTP_CLOSED_CRITICAL_STREAM, _, _));
receive_control_stream_->OnStreamReset(rst_frame);
}
TEST_P(QuicReceiveControlStreamTest, ReceiveSettings) {
SettingsFrame settings;
settings.values[10] = 2;
settings.values[SETTINGS_MAX_FIELD_SECTION_SIZE] = 5;
settings.values[SETTINGS_QPACK_BLOCKED_STREAMS] = 12;
settings.values[SETTINGS_QPACK_MAX_TABLE_CAPACITY] = 37;
std::string data = HttpEncoder::SerializeSettingsFrame(settings);
QuicStreamFrame frame(receive_control_stream_->id(), false, 1, data);
QpackEncoder* qpack_encoder = session_.qpack_encoder();
QpackEncoderHeaderTable* header_table =
QpackEncoderPeer::header_table(qpack_encoder);
EXPECT_EQ(std::numeric_limits<size_t>::max(),
session_.max_outbound_header_list_size());
EXPECT_EQ(0u, QpackEncoderPeer::maximum_blocked_streams(qpack_encoder));
EXPECT_EQ(0u, header_table->maximum_dynamic_table_capacity());
receive_control_stream_->OnStreamFrame(frame);
EXPECT_EQ(5u, session_.max_outbound_header_list_size());
EXPECT_EQ(12u, QpackEncoderPeer::maximum_blocked_streams(qpack_encoder));
EXPECT_EQ(37u, header_table->maximum_dynamic_table_capacity());
}
// Regression test for https://crbug.com/982648.
// QuicReceiveControlStream::OnDataAvailable() must stop processing input as
// soon as OnSettingsFrameStart() is called by HttpDecoder for the second frame.
TEST_P(QuicReceiveControlStreamTest, ReceiveSettingsTwice) {
SettingsFrame settings;
// Reserved identifiers, must be ignored.
settings.values[0x21] = 100;
settings.values[0x40] = 200;
std::string settings_frame = HttpEncoder::SerializeSettingsFrame(settings);
QuicStreamOffset offset = 1;
EXPECT_EQ(offset, NumBytesConsumed());
// Receive first SETTINGS frame.
receive_control_stream_->OnStreamFrame(
QuicStreamFrame(receive_control_stream_->id(), /* fin = */ false, offset,
settings_frame));
offset += settings_frame.length();
// First SETTINGS frame is consumed.
EXPECT_EQ(offset, NumBytesConsumed());
// Second SETTINGS frame causes the connection to be closed.
EXPECT_CALL(
*connection_,
CloseConnection(QUIC_HTTP_INVALID_FRAME_SEQUENCE_ON_CONTROL_STREAM,
"SETTINGS frame can only be received once.", _))
.WillOnce(
Invoke(connection_, &MockQuicConnection::ReallyCloseConnection));
EXPECT_CALL(*connection_, SendConnectionClosePacket(_, _, _));
EXPECT_CALL(session_, OnConnectionClosed(_, _));
// Receive second SETTINGS frame.
receive_control_stream_->OnStreamFrame(
QuicStreamFrame(receive_control_stream_->id(), /* fin = */ false, offset,
settings_frame));
// Frame header of second SETTINGS frame is consumed, but not frame payload.
QuicByteCount settings_frame_header_length = 2;
EXPECT_EQ(offset + settings_frame_header_length, NumBytesConsumed());
}
TEST_P(QuicReceiveControlStreamTest, ReceiveSettingsFragments) {
SettingsFrame settings;
settings.values[10] = 2;
settings.values[SETTINGS_MAX_FIELD_SECTION_SIZE] = 5;
std::string data = HttpEncoder::SerializeSettingsFrame(settings);
std::string data1 = data.substr(0, 1);
std::string data2 = data.substr(1, data.length() - 1);
QuicStreamFrame frame(receive_control_stream_->id(), false, 1, data1);
QuicStreamFrame frame2(receive_control_stream_->id(), false, 2, data2);
EXPECT_NE(5u, session_.max_outbound_header_list_size());
receive_control_stream_->OnStreamFrame(frame);
receive_control_stream_->OnStreamFrame(frame2);
EXPECT_EQ(5u, session_.max_outbound_header_list_size());
}
TEST_P(QuicReceiveControlStreamTest, ReceiveWrongFrame) {
// DATA frame header without payload.
quiche::QuicheBuffer data = HttpEncoder::SerializeDataFrameHeader(
/* payload_length = */ 2, quiche::SimpleBufferAllocator::Get());
QuicStreamFrame frame(receive_control_stream_->id(), false, 1,
data.AsStringView());
EXPECT_CALL(
*connection_,
CloseConnection(QUIC_HTTP_FRAME_UNEXPECTED_ON_CONTROL_STREAM, _, _));
receive_control_stream_->OnStreamFrame(frame);
}
TEST_P(QuicReceiveControlStreamTest,
ReceivePriorityUpdateFrameBeforeSettingsFrame) {
std::string serialized_frame = HttpEncoder::SerializePriorityUpdateFrame({});
QuicStreamFrame data(receive_control_stream_->id(), /* fin = */ false,
/* offset = */ 1, serialized_frame);
EXPECT_CALL(*connection_,
CloseConnection(QUIC_HTTP_MISSING_SETTINGS_FRAME,
"First frame received on control stream is type "
"984832, but it must be SETTINGS.",
_))
.WillOnce(
Invoke(connection_, &MockQuicConnection::ReallyCloseConnection));
EXPECT_CALL(*connection_, SendConnectionClosePacket(_, _, _));
EXPECT_CALL(session_, OnConnectionClosed(_, _));
receive_control_stream_->OnStreamFrame(data);
}
TEST_P(QuicReceiveControlStreamTest, ReceiveGoAwayFrame) {
StrictMock<MockHttp3DebugVisitor> debug_visitor;
session_.set_debug_visitor(&debug_visitor);
QuicStreamOffset offset = 1;
// Receive SETTINGS frame.
SettingsFrame settings;
std::string settings_frame = HttpEncoder::SerializeSettingsFrame(settings);
EXPECT_CALL(debug_visitor, OnSettingsFrameReceived(settings));
receive_control_stream_->OnStreamFrame(
QuicStreamFrame(receive_control_stream_->id(), /* fin = */ false, offset,
settings_frame));
offset += settings_frame.length();
GoAwayFrame goaway{/* id = */ 0};
std::string goaway_frame = HttpEncoder::SerializeGoAwayFrame(goaway);
QuicStreamFrame frame(receive_control_stream_->id(), false, offset,
goaway_frame);
EXPECT_FALSE(session_.goaway_received());
EXPECT_CALL(debug_visitor, OnGoAwayFrameReceived(goaway));
receive_control_stream_->OnStreamFrame(frame);
EXPECT_TRUE(session_.goaway_received());
}
TEST_P(QuicReceiveControlStreamTest, PushPromiseOnControlStreamShouldClose) {
std::string push_promise_frame = absl::HexStringToBytes(
"05" // PUSH_PROMISE
"01" // length
"00"); // push ID
QuicStreamFrame frame(receive_control_stream_->id(), false, 1,
push_promise_frame);
EXPECT_CALL(*connection_, CloseConnection(QUIC_HTTP_FRAME_ERROR, _, _))
.WillOnce(
Invoke(connection_, &MockQuicConnection::ReallyCloseConnection));
EXPECT_CALL(*connection_, SendConnectionClosePacket(_, _, _));
EXPECT_CALL(session_, OnConnectionClosed(_, _));
receive_control_stream_->OnStreamFrame(frame);
}
// Regression test for b/137554973: unknown frames should be consumed.
TEST_P(QuicReceiveControlStreamTest, ConsumeUnknownFrame) {
EXPECT_EQ(1u, NumBytesConsumed());
QuicStreamOffset offset = 1;
// Receive SETTINGS frame.
std::string settings_frame = HttpEncoder::SerializeSettingsFrame({});
receive_control_stream_->OnStreamFrame(
QuicStreamFrame(receive_control_stream_->id(), /* fin = */ false, offset,
settings_frame));
offset += settings_frame.length();
// SETTINGS frame is consumed.
EXPECT_EQ(offset, NumBytesConsumed());
// Receive unknown frame.
std::string unknown_frame = absl::HexStringToBytes(
"21" // reserved frame type
"03" // payload length
"666f6f"); // payload "foo"
receive_control_stream_->OnStreamFrame(QuicStreamFrame(
receive_control_stream_->id(), /* fin = */ false, offset, unknown_frame));
offset += unknown_frame.size();
// Unknown frame is consumed.
EXPECT_EQ(offset, NumBytesConsumed());
}
TEST_P(QuicReceiveControlStreamTest, ReceiveUnknownFrame) {
StrictMock<MockHttp3DebugVisitor> debug_visitor;
session_.set_debug_visitor(&debug_visitor);
const QuicStreamId id = receive_control_stream_->id();
QuicStreamOffset offset = 1;
// Receive SETTINGS frame.
SettingsFrame settings;
std::string settings_frame = HttpEncoder::SerializeSettingsFrame(settings);
EXPECT_CALL(debug_visitor, OnSettingsFrameReceived(settings));
receive_control_stream_->OnStreamFrame(
QuicStreamFrame(id, /* fin = */ false, offset, settings_frame));
offset += settings_frame.length();
// Receive unknown frame.
std::string unknown_frame = absl::HexStringToBytes(
"21" // reserved frame type
"03" // payload length
"666f6f"); // payload "foo"
EXPECT_CALL(debug_visitor, OnUnknownFrameReceived(id, /* frame_type = */ 0x21,
/* payload_length = */ 3));
receive_control_stream_->OnStreamFrame(
QuicStreamFrame(id, /* fin = */ false, offset, unknown_frame));
}
TEST_P(QuicReceiveControlStreamTest, CancelPushFrameBeforeSettings) {
std::string cancel_push_frame = absl::HexStringToBytes(
"03" // type CANCEL_PUSH
"01" // payload length
"01"); // push ID
EXPECT_CALL(*connection_, CloseConnection(QUIC_HTTP_FRAME_ERROR,
"CANCEL_PUSH frame received.", _))
.WillOnce(
Invoke(connection_, &MockQuicConnection::ReallyCloseConnection));
EXPECT_CALL(*connection_, SendConnectionClosePacket(_, _, _));
EXPECT_CALL(session_, OnConnectionClosed(_, _));
receive_control_stream_->OnStreamFrame(
QuicStreamFrame(receive_control_stream_->id(), /* fin = */ false,
/* offset = */ 1, cancel_push_frame));
}
TEST_P(QuicReceiveControlStreamTest, AcceptChFrameBeforeSettings) {
std::string accept_ch_frame = absl::HexStringToBytes(
"4089" // type (ACCEPT_CH)
"00"); // length
if (perspective() == Perspective::IS_SERVER) {
EXPECT_CALL(*connection_,
CloseConnection(
QUIC_HTTP_FRAME_UNEXPECTED_ON_CONTROL_STREAM,
"Invalid frame type 137 received on control stream.", _))
.WillOnce(
Invoke(connection_, &MockQuicConnection::ReallyCloseConnection));
} else {
EXPECT_CALL(*connection_,
CloseConnection(QUIC_HTTP_MISSING_SETTINGS_FRAME,
"First frame received on control stream is "
"type 137, but it must be SETTINGS.",
_))
.WillOnce(
Invoke(connection_, &MockQuicConnection::ReallyCloseConnection));
}
EXPECT_CALL(*connection_, SendConnectionClosePacket(_, _, _));
EXPECT_CALL(session_, OnConnectionClosed(_, _));
receive_control_stream_->OnStreamFrame(
QuicStreamFrame(receive_control_stream_->id(), /* fin = */ false,
/* offset = */ 1, accept_ch_frame));
}
TEST_P(QuicReceiveControlStreamTest, ReceiveAcceptChFrame) {
StrictMock<MockHttp3DebugVisitor> debug_visitor;
session_.set_debug_visitor(&debug_visitor);
const QuicStreamId id = receive_control_stream_->id();
QuicStreamOffset offset = 1;
// Receive SETTINGS frame.
SettingsFrame settings;
std::string settings_frame = HttpEncoder::SerializeSettingsFrame(settings);
EXPECT_CALL(debug_visitor, OnSettingsFrameReceived(settings));
receive_control_stream_->OnStreamFrame(
QuicStreamFrame(id, /* fin = */ false, offset, settings_frame));
offset += settings_frame.length();
// Receive ACCEPT_CH frame.
std::string accept_ch_frame = absl::HexStringToBytes(
"4089" // type (ACCEPT_CH)
"00"); // length
if (perspective() == Perspective::IS_CLIENT) {
EXPECT_CALL(debug_visitor, OnAcceptChFrameReceived(_));
} else {
EXPECT_CALL(*connection_,
CloseConnection(
QUIC_HTTP_FRAME_UNEXPECTED_ON_CONTROL_STREAM,
"Invalid frame type 137 received on control stream.", _))
.WillOnce(
Invoke(connection_, &MockQuicConnection::ReallyCloseConnection));
EXPECT_CALL(*connection_, SendConnectionClosePacket(_, _, _));
EXPECT_CALL(session_, OnConnectionClosed(_, _));
}
receive_control_stream_->OnStreamFrame(
QuicStreamFrame(id, /* fin = */ false, offset, accept_ch_frame));
}
TEST_P(QuicReceiveControlStreamTest, UnknownFrameBeforeSettings) {
std::string unknown_frame = absl::HexStringToBytes(
"21" // reserved frame type
"03" // payload length
"666f6f"); // payload "foo"
EXPECT_CALL(*connection_,
CloseConnection(QUIC_HTTP_MISSING_SETTINGS_FRAME,
"First frame received on control stream is type "
"33, but it must be SETTINGS.",
_))
.WillOnce(
Invoke(connection_, &MockQuicConnection::ReallyCloseConnection));
EXPECT_CALL(*connection_, SendConnectionClosePacket(_, _, _));
EXPECT_CALL(session_, OnConnectionClosed(_, _));
receive_control_stream_->OnStreamFrame(
QuicStreamFrame(receive_control_stream_->id(), /* fin = */ false,
/* offset = */ 1, unknown_frame));
}
} // namespace
} // namespace test
} // namespace quic