blob: 11dec698478d2fb8dc0781db36a7dafb5d5b579d [file] [log] [blame]
// Copyright (c) 2018 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 <list>
#include "absl/strings/string_view.h"
#include "quic/core/qpack/qpack_decoder.h"
#include "quic/core/quic_error_codes.h"
#include "quic/test_tools/qpack/qpack_decoder_test_utils.h"
#include "quic/test_tools/qpack/qpack_test_utils.h"
#include "spdy/core/spdy_header_block.h"
namespace quic {
// A decoder to read encoded data from a file, decode it, and compare to
// a list of expected header lists read from another file. File format is
// described at
class QpackOfflineDecoder : public QpackDecoder::EncoderStreamErrorDelegate {
~QpackOfflineDecoder() override = default;
// Read encoded header blocks and encoder stream data from |input_filename|
// and decode them, read expected header lists from
// |expected_headers_filename|, and compare decoded header lists to expected
// ones. Returns true if there is an equal number of them and the
// corresponding ones match, false otherwise.
bool DecodeAndVerifyOfflineData(absl::string_view input_filename,
absl::string_view expected_headers_filename);
// QpackDecoder::EncoderStreamErrorDelegate implementation:
void OnEncoderStreamError(QuicErrorCode error_code,
absl::string_view error_message) override;
// Data structure to hold TestHeadersHandler and QpackProgressiveDecoder until
// decoding of a header header block (and all preceding header blocks) is
// complete.
struct Decoder {
std::unique_ptr<test::TestHeadersHandler> headers_handler;
std::unique_ptr<QpackProgressiveDecoder> progressive_decoder;
uint64_t stream_id;
// Parse decoder parameters from |input_filename| and set up |qpack_decoder_|
// accordingly.
bool ParseInputFilename(absl::string_view input_filename);
// Read encoded header blocks and encoder stream data from |input_filename|,
// pass them to |qpack_decoder_| for decoding, and add decoded header lists to
// |decoded_header_lists_|.
bool DecodeHeaderBlocksFromFile(absl::string_view input_filename);
// Read expected header lists from |expected_headers_filename| and verify
// decoded header lists in |decoded_header_lists_| against them.
bool VerifyDecodedHeaderLists(absl::string_view expected_headers_filename);
// Parse next header list from |*expected_headers_data| into
// |*expected_header_list|, removing consumed data from the beginning of
// |*expected_headers_data|. Returns true on success, false if parsing fails.
bool ReadNextExpectedHeaderList(absl::string_view* expected_headers_data,
spdy::Http2HeaderBlock* expected_header_list);
// Compare two header lists. Allow for different orders of certain headers as
// described at
bool CompareHeaderBlocks(spdy::Http2HeaderBlock decoded_header_list,
spdy::Http2HeaderBlock expected_header_list);
bool encoder_stream_error_detected_;
test::NoopQpackStreamSenderDelegate decoder_stream_sender_delegate_;
std::unique_ptr<QpackDecoder> qpack_decoder_;
// Objects necessary for decoding, one list element for each header block.
std::list<Decoder> decoders_;
// Decoded header lists.
std::list<spdy::Http2HeaderBlock> decoded_header_lists_;
} // namespace quic