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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "net/http2/decoder/payload_decoders/data_payload_decoder.h" |
| 6 |
| 7 #include <stddef.h> |
| 8 |
| 9 #include <string> |
| 10 |
| 11 #include "base/logging.h" |
| 12 #include "net/http2/decoder/frame_parts.h" |
| 13 #include "net/http2/decoder/frame_parts_collector.h" |
| 14 #include "net/http2/decoder/http2_frame_decoder_listener.h" |
| 15 #include "net/http2/decoder/payload_decoders/payload_decoder_base_test_util.h" |
| 16 #include "net/http2/http2_constants.h" |
| 17 #include "net/http2/http2_structures.h" |
| 18 #include "net/http2/http2_structures_test_util.h" |
| 19 #include "net/http2/tools/failure.h" |
| 20 #include "net/http2/tools/http2_frame_builder.h" |
| 21 #include "net/http2/tools/http2_random.h" |
| 22 #include "net/http2/tools/random_decoder_test.h" |
| 23 #include "testing/gtest/include/gtest/gtest.h" |
| 24 |
| 25 using ::testing::AssertionResult; |
| 26 using std::string; |
| 27 |
| 28 namespace net { |
| 29 namespace test { |
| 30 |
| 31 // Provides friend access to an instance of the payload decoder, and also |
| 32 // provides info to aid in testing. |
| 33 class DataPayloadDecoderPeer { |
| 34 public: |
| 35 static constexpr Http2FrameType FrameType() { return Http2FrameType::DATA; } |
| 36 |
| 37 // Returns the mask of flags that affect the decoding of the payload (i.e. |
| 38 // flags that that indicate the presence of certain fields or padding). |
| 39 static constexpr uint8_t FlagsAffectingPayloadDecoding() { |
| 40 return Http2FrameFlag::FLAG_PADDED; |
| 41 } |
| 42 |
| 43 static void Randomize(DataPayloadDecoder* p, RandomBase* rng) { |
| 44 VLOG(1) << "DataPayloadDecoderPeer::Randomize"; |
| 45 CorruptEnum(&p->payload_state_, rng); |
| 46 } |
| 47 }; |
| 48 |
| 49 namespace { |
| 50 |
| 51 struct Listener : public FramePartsCollector { |
| 52 void OnDataStart(const Http2FrameHeader& header) override { |
| 53 VLOG(1) << "OnDataStart: " << header; |
| 54 StartFrame(header)->OnDataStart(header); |
| 55 } |
| 56 |
| 57 void OnDataPayload(const char* data, size_t len) override { |
| 58 VLOG(1) << "OnDataPayload: len=" << len; |
| 59 CurrentFrame()->OnDataPayload(data, len); |
| 60 } |
| 61 |
| 62 void OnDataEnd() override { |
| 63 VLOG(1) << "OnDataEnd"; |
| 64 EndFrame()->OnDataEnd(); |
| 65 } |
| 66 |
| 67 void OnPadLength(size_t pad_length) override { |
| 68 VLOG(1) << "OnPadLength: " << pad_length; |
| 69 CurrentFrame()->OnPadLength(pad_length); |
| 70 } |
| 71 |
| 72 void OnPadding(const char* padding, size_t skipped_length) override { |
| 73 VLOG(1) << "OnPadding: " << skipped_length; |
| 74 CurrentFrame()->OnPadding(padding, skipped_length); |
| 75 } |
| 76 |
| 77 void OnPaddingTooLong(const Http2FrameHeader& header, |
| 78 size_t missing_length) override { |
| 79 VLOG(1) << "OnPaddingTooLong: " << header |
| 80 << " missing_length: " << missing_length; |
| 81 EndFrame()->OnPaddingTooLong(header, missing_length); |
| 82 } |
| 83 }; |
| 84 |
| 85 class DataPayloadDecoderTest |
| 86 : public AbstractPaddablePayloadDecoderTest<DataPayloadDecoder, |
| 87 DataPayloadDecoderPeer, |
| 88 Listener> { |
| 89 protected: |
| 90 AssertionResult CreateAndDecodeDataOfSize(size_t data_size) { |
| 91 Reset(); |
| 92 uint8_t flags = RandFlags(); |
| 93 |
| 94 string data_payload = Random().RandString(data_size); |
| 95 frame_builder_.Append(data_payload); |
| 96 MaybeAppendTrailingPadding(); |
| 97 |
| 98 Http2FrameHeader frame_header(frame_builder_.size(), Http2FrameType::DATA, |
| 99 flags, RandStreamId()); |
| 100 set_frame_header(frame_header); |
| 101 ScrubFlagsOfHeader(&frame_header); |
| 102 FrameParts expected(frame_header, data_payload, total_pad_length_); |
| 103 VERIFY_AND_RETURN_SUCCESS( |
| 104 DecodePayloadAndValidateSeveralWays(frame_builder_.buffer(), expected)); |
| 105 } |
| 106 }; |
| 107 |
| 108 INSTANTIATE_TEST_CASE_P(VariousPadLengths, |
| 109 DataPayloadDecoderTest, |
| 110 ::testing::Values(0, 1, 2, 3, 4, 254, 255, 256)); |
| 111 |
| 112 TEST_P(DataPayloadDecoderTest, VariousDataPayloadSizes) { |
| 113 for (size_t data_size : {0, 1, 2, 3, 255, 256, 1024}) { |
| 114 EXPECT_TRUE(CreateAndDecodeDataOfSize(data_size)); |
| 115 } |
| 116 } |
| 117 |
| 118 } // namespace |
| 119 } // namespace test |
| 120 } // namespace net |
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