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// 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.
#ifndef QUICHE_QUIC_CORE_HTTP_HTTP_ENCODER_H_
#define QUICHE_QUIC_CORE_HTTP_HTTP_ENCODER_H_
#include <memory>
#include "net/third_party/quiche/src/quic/core/http/http_frames.h"
#include "net/third_party/quiche/src/quic/core/quic_error_codes.h"
#include "net/third_party/quiche/src/quic/platform/api/quic_export.h"
namespace quic {
class QuicDataWriter;
// A class for encoding the HTTP frames that are exchanged in an HTTP over QUIC
// session.
class QUIC_EXPORT_PRIVATE HttpEncoder {
public:
HttpEncoder() = delete;
// Serializes a DATA frame header into a new buffer stored in |output|.
// Returns the length of the buffer on success, or 0 otherwise.
static QuicByteCount SerializeDataFrameHeader(
QuicByteCount payload_length,
std::unique_ptr<char[]>* output);
// Serializes a HEADERS frame header into a new buffer stored in |output|.
// Returns the length of the buffer on success, or 0 otherwise.
static QuicByteCount SerializeHeadersFrameHeader(
QuicByteCount payload_length,
std::unique_ptr<char[]>* output);
// Serializes a CANCEL_PUSH frame into a new buffer stored in |output|.
// Returns the length of the buffer on success, or 0 otherwise.
static QuicByteCount SerializeCancelPushFrame(
const CancelPushFrame& cancel_push,
std::unique_ptr<char[]>* output);
// Serializes a SETTINGS frame into a new buffer stored in |output|.
// Returns the length of the buffer on success, or 0 otherwise.
static QuicByteCount SerializeSettingsFrame(const SettingsFrame& settings,
std::unique_ptr<char[]>* output);
// Serializes the header and push_id of a PUSH_PROMISE frame into a new buffer
// stored in |output|. Returns the length of the buffer on success, or 0
// otherwise.
static QuicByteCount SerializePushPromiseFrameWithOnlyPushId(
const PushPromiseFrame& push_promise,
std::unique_ptr<char[]>* output);
// Serializes a GOAWAY frame into a new buffer stored in |output|.
// Returns the length of the buffer on success, or 0 otherwise.
static QuicByteCount SerializeGoAwayFrame(const GoAwayFrame& goaway,
std::unique_ptr<char[]>* output);
// Serializes a MAX_PUSH frame into a new buffer stored in |output|.
// Returns the length of the buffer on success, or 0 otherwise.
static QuicByteCount SerializeMaxPushIdFrame(
const MaxPushIdFrame& max_push_id,
std::unique_ptr<char[]>* output);
// Serializes a PRIORITY_UPDATE frame into a new buffer stored in |output|.
// Returns the length of the buffer on success, or 0 otherwise.
static QuicByteCount SerializePriorityUpdateFrame(
const PriorityUpdateFrame& priority_update,
std::unique_ptr<char[]>* output);
// Serializes a frame with reserved frame type specified in
// https://tools.ietf.org/html/draft-ietf-quic-http-25#section-7.2.9.
static QuicByteCount SerializeGreasingFrame(std::unique_ptr<char[]>* output);
};
} // namespace quic
#endif // QUICHE_QUIC_CORE_HTTP_HTTP_ENCODER_H_