mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-26 09:30:24 +00:00
120 lines
3.5 KiB
C++
120 lines
3.5 KiB
C++
/*
|
|
* Copyright (c) 2020, Ali Mohammad Pur <ali.mpfard@gmail.com>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice, this
|
|
* list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/ByteBuffer.h>
|
|
#include <AK/Endian.h>
|
|
#include <AK/Types.h>
|
|
|
|
namespace TLS {
|
|
|
|
enum class MessageType : u8 {
|
|
ChangeCipher = 0x14,
|
|
Alert = 0x15,
|
|
Handshake = 0x16,
|
|
ApplicationData = 0x17,
|
|
};
|
|
|
|
enum class Version : u16 {
|
|
V10 = 0x0301,
|
|
V11 = 0x0302,
|
|
V12 = 0x0303,
|
|
V13 = 0x0304
|
|
};
|
|
|
|
class PacketBuilder {
|
|
public:
|
|
PacketBuilder(MessageType type, u16 version, size_t size_hint = 0xfdf)
|
|
: PacketBuilder(type, (Version)version, size_hint)
|
|
{
|
|
}
|
|
|
|
PacketBuilder(MessageType type, Version version, size_t size_hint = 0xfdf)
|
|
{
|
|
m_packet_data = ByteBuffer::create_uninitialized(size_hint + 16);
|
|
m_current_length = 5;
|
|
m_packet_data[0] = (u8)type;
|
|
*(u16*)m_packet_data.offset_pointer(1) = AK::convert_between_host_and_network_endian((u16)version);
|
|
}
|
|
|
|
inline void append(u16 value)
|
|
{
|
|
value = AK::convert_between_host_and_network_endian(value);
|
|
append((const u8*)&value, sizeof(value));
|
|
}
|
|
inline void append(u8 value)
|
|
{
|
|
append((const u8*)&value, sizeof(value));
|
|
}
|
|
inline void append(ReadonlyBytes data)
|
|
{
|
|
append(data.data(), data.size());
|
|
}
|
|
inline void append_u24(u32 value)
|
|
{
|
|
u8 buf[3];
|
|
buf[0] = value / 0x10000;
|
|
value %= 0x10000;
|
|
buf[1] = value / 0x100;
|
|
value %= 0x100;
|
|
buf[2] = value;
|
|
|
|
append(buf, 3);
|
|
}
|
|
inline void append(const u8* data, size_t bytes)
|
|
{
|
|
if (bytes == 0)
|
|
return;
|
|
|
|
auto old_length = m_current_length;
|
|
m_current_length += bytes;
|
|
|
|
if (m_packet_data.size() < m_current_length) {
|
|
m_packet_data.grow(m_current_length);
|
|
}
|
|
|
|
m_packet_data.overwrite(old_length, data, bytes);
|
|
}
|
|
inline ByteBuffer build()
|
|
{
|
|
auto length = m_current_length;
|
|
m_current_length = 0;
|
|
return m_packet_data.slice(0, length);
|
|
}
|
|
inline void set(size_t offset, u8 value)
|
|
{
|
|
ASSERT(offset < m_current_length);
|
|
m_packet_data[offset] = value;
|
|
}
|
|
size_t length() const { return m_current_length; }
|
|
|
|
private:
|
|
ByteBuffer m_packet_data;
|
|
size_t m_current_length;
|
|
};
|
|
|
|
}
|