Revert of Add new HTTP/2 and HPACK decoder in net/http2/.

net/http2/tools/http2_frame_builder.cc

-// 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/http2/tools/http2_frame_builder.h"
-
-#ifdef WIN32
-#include <winsock2.h>  // for htonl() functions
-#else
-#include <arpa/inet.h>
-#include <netinet/in.h>  // for htonl, htons
-#endif
-
-#include "testing/gtest/include/gtest/gtest.h"
-
-using base::StringPiece;
-
-namespace net {
-namespace test {
-
-Http2FrameBuilder::Http2FrameBuilder(Http2FrameType type,
-                                     uint8_t flags,
-                                     uint32_t stream_id) {
-  AppendUInt24(0);  // Frame payload length, unknown so far.
-  Append(type);
-  AppendUInt8(flags);
-  AppendUInt31(stream_id);
-}
-
-Http2FrameBuilder::Http2FrameBuilder(const Http2FrameHeader& v) {
-  Append(v);
-}
-
-void Http2FrameBuilder::Append(StringPiece s) {
-  s.AppendToString(&buffer_);
-}
-
-void Http2FrameBuilder::AppendBytes(const void* data, uint32_t num_bytes) {
-  Append(StringPiece(static_cast<const char*>(data), num_bytes));
-}
-
-void Http2FrameBuilder::AppendZeroes(size_t num_zero_bytes) {
-  char zero = 0;
-  buffer_.append(num_zero_bytes, zero);
-}
-
-void Http2FrameBuilder::AppendUInt8(uint8_t value) {
-  AppendBytes(&value, 1);
-}
-
-void Http2FrameBuilder::AppendUInt16(uint16_t value) {
-  value = htons(value);
-  AppendBytes(&value, 2);
-}
-
-void Http2FrameBuilder::AppendUInt24(uint32_t value) {
-  // Doesn't make sense to try to append a larger value, as that doesn't
-  // simulate something an encoder could do (i.e. the other 8 bits simply aren't
-  // there to be occupied).
-  EXPECT_EQ(value, value & 0xffffff);
-  value = htonl(value);
-  AppendBytes(reinterpret_cast<char*>(&value) + 1, 3);
-}
-
-void Http2FrameBuilder::AppendUInt31(uint32_t value) {
-  // If you want to test the high-bit being set, call AppendUInt32 instead.
-  uint32_t tmp = value & StreamIdMask();
-  EXPECT_EQ(value, value & StreamIdMask())
-      << "High-bit of uint32 should be clear.";
-  value = htonl(tmp);
-  AppendBytes(&value, 4);
-}
-
-void Http2FrameBuilder::AppendUInt32(uint32_t value) {
-  value = htonl(value);
-  AppendBytes(&value, sizeof(value));
-}
-
-void Http2FrameBuilder::Append(Http2ErrorCode error_code) {
-  AppendUInt32(static_cast<uint32_t>(error_code));
-}
-
-void Http2FrameBuilder::Append(Http2FrameType type) {
-  AppendUInt8(static_cast<uint8_t>(type));
-}
-
-void Http2FrameBuilder::Append(Http2SettingsParameter parameter) {
-  AppendUInt16(static_cast<uint16_t>(parameter));
-}
-
-void Http2FrameBuilder::Append(const Http2FrameHeader& v) {
-  AppendUInt24(v.payload_length);
-  Append(v.type);
-  AppendUInt8(v.flags);
-  AppendUInt31(v.stream_id);
-}
-
-void Http2FrameBuilder::Append(const Http2PriorityFields& v) {
-  // The EXCLUSIVE flag is the high-bit of the 32-bit stream dependency field.
-  uint32_t tmp = v.stream_dependency & StreamIdMask();
-  EXPECT_EQ(tmp, v.stream_dependency);
-  if (v.is_exclusive) {
-    tmp |= 0x80000000;
-  }
-  AppendUInt32(tmp);
-
-  // The PRIORITY frame's weight field is logically in the range [1, 256],
-  // but is encoded as a byte in the range [0, 255].
-  ASSERT_LE(1u, v.weight);
-  ASSERT_LE(v.weight, 256u);
-  AppendUInt8(v.weight - 1);
-}
-
-void Http2FrameBuilder::Append(const Http2RstStreamFields& v) {
-  Append(v.error_code);
-}
-
-void Http2FrameBuilder::Append(const Http2SettingFields& v) {
-  Append(v.parameter);
-  AppendUInt32(v.value);
-}
-
-void Http2FrameBuilder::Append(const Http2PushPromiseFields& v) {
-  AppendUInt31(v.promised_stream_id);
-}
-
-void Http2FrameBuilder::Append(const Http2PingFields& v) {
-  AppendBytes(v.opaque_data, sizeof Http2PingFields::opaque_data);
-}
-
-void Http2FrameBuilder::Append(const Http2GoAwayFields& v) {
-  AppendUInt31(v.last_stream_id);
-  Append(v.error_code);
-}
-
-void Http2FrameBuilder::Append(const Http2WindowUpdateFields& v) {
-  EXPECT_NE(0u, v.window_size_increment) << "Increment must be non-zero.";
-  AppendUInt31(v.window_size_increment);
-}
-
-void Http2FrameBuilder::Append(const Http2AltSvcFields& v) {
-  AppendUInt16(v.origin_length);
-}
-
-// Methods for changing existing buffer contents.
-
-void Http2FrameBuilder::WriteAt(StringPiece s, size_t offset) {
-  ASSERT_LE(offset, buffer_.size());
-  size_t len = offset + s.size();
-  if (len > buffer_.size()) {
-    buffer_.resize(len);
-  }
-  for (size_t ndx = 0; ndx < s.size(); ++ndx) {
-    buffer_[offset + ndx] = s[ndx];
-  }
-}
-
-void Http2FrameBuilder::WriteBytesAt(const void* data,
-                                     uint32_t num_bytes,
-                                     size_t offset) {
-  WriteAt(StringPiece(static_cast<const char*>(data), num_bytes), offset);
-}
-
-void Http2FrameBuilder::WriteUInt24At(uint32_t value, size_t offset) {
-  ASSERT_LT(value, static_cast<uint32_t>(1 << 24));
-  value = htonl(value);
-  WriteBytesAt(reinterpret_cast<char*>(&value) + 1, sizeof(value) - 1, offset);
-}
-
-void Http2FrameBuilder::SetPayloadLength(uint32_t payload_length) {
-  WriteUInt24At(payload_length, 0);
-}
-
-size_t Http2FrameBuilder::SetPayloadLength() {
-  EXPECT_GE(size(), Http2FrameHeader::EncodedSize());
-  uint32_t payload_length = size() - Http2FrameHeader::EncodedSize();
-  SetPayloadLength(payload_length);
-  return payload_length;
-}
-
-}  // namespace test
-}  // namespace net