blob: 1257822e4868b48e6c7480453aeff21a14547329 [file] [log] [blame]
// Copyright 2016 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/http2/decoder/payload_decoders/settings_payload_decoder.h"
#include <vector>
#include "base/logging.h"
#include "net/third_party/http2/decoder/http2_frame_decoder_listener.h"
#include "net/third_party/http2/decoder/payload_decoders/payload_decoder_base_test_util.h"
#include "net/third_party/http2/http2_constants.h"
#include "net/third_party/http2/http2_constants_test_util.h"
#include "net/third_party/http2/http2_structures_test_util.h"
#include "net/third_party/http2/test_tools/frame_parts.h"
#include "net/third_party/http2/test_tools/frame_parts_collector.h"
#include "net/third_party/http2/tools/http2_frame_builder.h"
#include "net/third_party/http2/tools/http2_random.h"
#include "net/third_party/http2/tools/random_decoder_test.h"
#include "starboard/types.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace http2 {
namespace test {
class SettingsPayloadDecoderPeer {
public:
static constexpr Http2FrameType FrameType() {
return Http2FrameType::SETTINGS;
}
// Returns the mask of flags that affect the decoding of the payload (i.e.
// flags that that indicate the presence of certain fields or padding).
static constexpr uint8_t FlagsAffectingPayloadDecoding() {
return Http2FrameFlag::ACK;
}
};
namespace {
struct Listener : public FramePartsCollector {
void OnSettingsStart(const Http2FrameHeader& header) override {
VLOG(1) << "OnSettingsStart: " << header;
EXPECT_EQ(Http2FrameType::SETTINGS, header.type) << header;
EXPECT_EQ(Http2FrameFlag(), header.flags) << header;
StartFrame(header)->OnSettingsStart(header);
}
void OnSetting(const Http2SettingFields& setting_fields) override {
VLOG(1) << "Http2SettingFields: setting_fields=" << setting_fields;
CurrentFrame()->OnSetting(setting_fields);
}
void OnSettingsEnd() override {
VLOG(1) << "OnSettingsEnd";
EndFrame()->OnSettingsEnd();
}
void OnSettingsAck(const Http2FrameHeader& header) override {
VLOG(1) << "OnSettingsAck: " << header;
StartAndEndFrame(header)->OnSettingsAck(header);
}
void OnFrameSizeError(const Http2FrameHeader& header) override {
VLOG(1) << "OnFrameSizeError: " << header;
FrameError(header)->OnFrameSizeError(header);
}
};
class SettingsPayloadDecoderTest
: public AbstractPayloadDecoderTest<SettingsPayloadDecoder,
SettingsPayloadDecoderPeer,
Listener> {
protected:
Http2SettingFields RandSettingsFields() {
Http2SettingFields fields;
test::Randomize(&fields, RandomPtr());
return fields;
}
};
// Confirm we get an error if the SETTINGS payload is not the correct size
// to hold exactly zero or more whole Http2SettingFields.
TEST_F(SettingsPayloadDecoderTest, SettingsWrongSize) {
auto approve_size = [](size_t size) {
// Should get an error if size is not an integral multiple of the size
// of one setting.
return 0 != (size % Http2SettingFields::EncodedSize());
};
Http2FrameBuilder fb;
fb.Append(RandSettingsFields());
fb.Append(RandSettingsFields());
fb.Append(RandSettingsFields());
EXPECT_TRUE(VerifyDetectsFrameSizeError(0, fb.buffer(), approve_size));
}
// Confirm we get an error if the SETTINGS ACK payload is not empty.
TEST_F(SettingsPayloadDecoderTest, SettingsAkcWrongSize) {
auto approve_size = [](size_t size) { return size != 0; };
Http2FrameBuilder fb;
fb.Append(RandSettingsFields());
fb.Append(RandSettingsFields());
fb.Append(RandSettingsFields());
EXPECT_TRUE(VerifyDetectsFrameSizeError(Http2FrameFlag::ACK, fb.buffer(),
approve_size));
}
// SETTINGS must have stream_id==0, but the payload decoder doesn't check that.
TEST_F(SettingsPayloadDecoderTest, SettingsAck) {
for (int stream_id = 0; stream_id < 3; ++stream_id) {
Http2FrameHeader header(0, Http2FrameType::SETTINGS,
RandFlags() | Http2FrameFlag::ACK, stream_id);
set_frame_header(header);
FrameParts expected(header);
EXPECT_TRUE(DecodePayloadAndValidateSeveralWays("", expected));
}
}
// Try several values of each known SETTINGS parameter.
TEST_F(SettingsPayloadDecoderTest, OneRealSetting) {
std::vector<uint32_t> values = {0, 1, 0xffffffff, Random().Rand32()};
for (auto param : AllHttp2SettingsParameters()) {
for (uint32_t value : values) {
Http2SettingFields fields(param, value);
Http2FrameBuilder fb;
fb.Append(fields);
Http2FrameHeader header(fb.size(), Http2FrameType::SETTINGS, RandFlags(),
RandStreamId());
set_frame_header(header);
FrameParts expected(header);
expected.AppendSetting(fields);
EXPECT_TRUE(DecodePayloadAndValidateSeveralWays(fb.buffer(), expected));
}
}
}
// Decode a SETTINGS frame with lots of fields.
TEST_F(SettingsPayloadDecoderTest, ManySettings) {
const size_t num_settings = 100;
const size_t size = Http2SettingFields::EncodedSize() * num_settings;
Http2FrameHeader header(size, Http2FrameType::SETTINGS,
RandFlags(), // & ~Http2FrameFlag::ACK,
RandStreamId());
set_frame_header(header);
FrameParts expected(header);
Http2FrameBuilder fb;
for (size_t n = 0; n < num_settings; ++n) {
Http2SettingFields fields(static_cast<Http2SettingsParameter>(n),
Random().Rand32());
fb.Append(fields);
expected.AppendSetting(fields);
}
ASSERT_EQ(size, fb.size());
EXPECT_TRUE(DecodePayloadAndValidateSeveralWays(fb.buffer(), expected));
}
} // namespace
} // namespace test
} // namespace http2