434 lines
11 KiB
C++
434 lines
11 KiB
C++
#pragma once
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// solanaceae port of tox_ngc_ext
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#include <solanaceae/toxcore/tox_event_interface.hpp>
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#include <solanaceae/toxcore/tox_interface.hpp>
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#include <solanaceae/util/event_provider.hpp>
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#include <solanaceae/toxcore/tox_key.hpp>
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#include <array>
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#include <vector>
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namespace Events {
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// TODO: implement events as non-owning
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struct NGCEXT_hs1_request_last_ids {
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uint32_t group_number;
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uint32_t peer_number;
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// - peer_key bytes (peer key we want to know ids for)
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ToxKey peer_key;
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// - 1 byte (uint8_t count ids, atleast 1)
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uint8_t count_ids;
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};
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struct NGCEXT_hs1_response_last_ids {
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uint32_t group_number;
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uint32_t peer_number;
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// respond to a request with 0 or more message ids, sorted by newest first
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// - peer_key bytes (the msg_ids are from)
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ToxKey peer_key;
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// - 1 byte (uint8_t count ids, can be 0)
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uint8_t count_ids;
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// - array [
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// - msg_id bytes (the message id)
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// - ]
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std::vector<uint32_t> msg_ids;
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};
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struct NGCEXT_ft1_request {
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uint32_t group_number;
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uint32_t peer_number;
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// request the other side to initiate a FT
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// - 4 byte (file_kind)
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uint32_t file_kind;
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// - X bytes (file_kind dependent id, differnt sizes)
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std::vector<uint8_t> file_id;
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};
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struct NGCEXT_ft1_init {
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uint32_t group_number;
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uint32_t peer_number;
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// tell the other side you want to start a FT
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// - 4 byte (file_kind)
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uint32_t file_kind;
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// - 8 bytes (data size)
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uint64_t file_size;
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// - 1 byte (temporary_file_tf_id, for this peer only, technically just a prefix to distinguish between simultainious fts)
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uint8_t transfer_id;
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// - X bytes (file_kind dependent id, differnt sizes)
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std::vector<uint8_t> file_id;
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};
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struct NGCEXT_ft1_init_ack {
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uint32_t group_number;
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uint32_t peer_number;
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// - 1 byte (transfer_id)
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uint8_t transfer_id;
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// - 2 byte (self_max_lossy_data_size)
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uint16_t max_lossy_data_size;
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};
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struct NGCEXT_ft1_data {
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uint32_t group_number;
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uint32_t peer_number;
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// data fragment
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// - 1 byte (temporary_file_tf_id)
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uint8_t transfer_id;
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// - 2 bytes (sequece id)
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uint16_t sequence_id;
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// - X bytes (the data fragment)
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// (size is implicit)
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std::vector<uint8_t> data;
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};
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struct NGCEXT_ft1_data_ack {
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uint32_t group_number;
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uint32_t peer_number;
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// - 1 byte (temporary_file_tf_id)
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uint8_t transfer_id;
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// - array [ (of sequece ids)
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// - 2 bytes (sequece id)
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// - ]
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std::vector<uint16_t> sequence_ids;
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};
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struct NGCEXT_ft1_message {
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uint32_t group_number;
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uint32_t peer_number;
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// - 4 byte (message_id)
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uint32_t message_id;
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// - 4 byte (file_kind)
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uint32_t file_kind;
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// - X bytes (file_kind dependent id, differnt sizes)
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std::vector<uint8_t> file_id;
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};
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struct NGCEXT_ft1_have {
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uint32_t group_number;
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uint32_t peer_number;
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// - 4 byte (file_kind)
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uint32_t file_kind;
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// - X bytes (file_kind dependent id, differnt sizes)
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std::vector<uint8_t> file_id;
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// - array [
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// - 4 bytes (chunk index)
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// - ]
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std::vector<uint32_t> chunks;
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};
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struct NGCEXT_ft1_bitset {
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uint32_t group_number;
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uint32_t peer_number;
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// - 4 byte (file_kind)
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uint32_t file_kind;
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// - X bytes (file_kind dependent id, differnt sizes)
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std::vector<uint8_t> file_id;
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uint32_t start_chunk;
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// - array [
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// - 1 bit (have chunk)
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// - ] (filled up with zero)
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// high to low?
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std::vector<uint8_t> chunk_bitset;
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};
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struct NGCEXT_pc1_announce {
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uint32_t group_number;
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uint32_t peer_number;
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// - X bytes (id, differnt sizes)
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std::vector<uint8_t> id;
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};
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} // Events
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enum class NGCEXT_Event : uint8_t {
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//TODO: make it possible to go further back
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// request last (few) message_ids for a peer
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// - peer_key bytes (peer key we want to know ids for)
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// - 1 byte (uint8_t count ids, atleast 1)
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HS1_REQUEST_LAST_IDS = 0x80 | 1u,
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// respond to a request with 0 or more message ids, sorted by newest first
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// - peer_key bytes (the msg_ids are from)
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// - 1 byte (uint8_t count ids, can be 0)
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// - array [
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// - msg_id bytes (the message id)
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// - ]
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HS1_RESPONSE_LAST_IDS,
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// request the other side to initiate a FT
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// - 4 byte (file_kind)
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// - X bytes (file_kind dependent id, differnt sizes)
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FT1_REQUEST = 0x80 | 8u,
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// TODO: request result negative, speed up not found
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// tell the other side you want to start a FT
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// TODO: might use id layer instead. with it, it would look similar to friends_ft
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// - 4 byte (file_kind)
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// - 8 bytes (data size, can be 0 if unknown, BUT files have to be atleast 1 byte)
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// - 1 byte (temporary_file_tf_id, for this peer only, technically just a prefix to distinguish between simultainious fts)
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// - X bytes (file_kind dependent id, differnt sizes)
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FT1_INIT,
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// acknowlage init (like an accept)
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// like tox ft control continue
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// - 1 byte (transfer_id)
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// - 2 byte (self_max_lossy_data_size) (optional since v2)
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FT1_INIT_ACK,
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// TODO: init deny, speed up non acceptance
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// data fragment
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// - 1 byte (temporary_file_tf_id)
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// - 2 bytes (sequece id)
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// - X bytes (the data fragment)
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// (size is implicit)
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FT1_DATA,
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// acknowlage data fragments
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// TODO: last 3 should be sufficient, 5 should be generous
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// - 1 byte (temporary_file_tf_id)
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// // this is implicit (pkg size)- 1 byte (number of sequence ids to ack, this kind of depends on window size)
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// - array [ (of sequece ids)
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// - 2 bytes (sequece id)
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// - ]
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FT1_DATA_ACK,
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// send file as message
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// basically the opposite of request
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// contains file_kind and file_id (and timestamp?)
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// - 4 bytes (message_id)
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// - 4 bytes (file_kind)
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// - X bytes (file_kind dependent id, differnt sizes)
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FT1_MESSAGE,
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// announce you have specified chunks, for given info
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// this is info/chunk specific
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// bundle these together to reduce overhead (like maybe every 16, max 1min)
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// - 4 bytes (file_kind)
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// - X bytes (file_kind dependent id, differnt sizes)
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// - array [
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// - 4 bytes (chunk index)
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// - ]
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FT1_HAVE,
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// tell the other peer which chunks, for a given info you have
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// compressed down to a bitset (in parts)
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// supposed to only be sent once on participation announcement, when mutual interest
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// it is always assumed by the other side, that you dont have the chunk, until told otherwise,
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// so you can be smart about what you send.
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// - 4 bytes (file_kind)
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// - X bytes (file_kind dependent id, differnt sizes)
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// - 4 bytes (first chunk index in bitset)
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// - array [
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// - 1 bit (have chunk)
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// - ] (filled up with zero)
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FT1_BITSET,
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// TODO: FT1_IDONTHAVE, tell a peer you no longer have said chunk
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// TODO: FT1_REJECT, tell a peer you wont fulfil the request
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// tell another peer that you are participating in X
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// you can reply with PC1_ANNOUNCE, to let the other side know, you too are participating in X
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// you should NOT announce often, since this hits peers that not participate
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// ft1 uses fk+id
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// - x bytes (id, different sizes)
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PC1_ANNOUNCE = 0x80 | 32u,
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MAX
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};
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struct NGCEXTEventI {
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using enumType = NGCEXT_Event;
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virtual bool onEvent(const Events::NGCEXT_hs1_request_last_ids&) { return false; }
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virtual bool onEvent(const Events::NGCEXT_hs1_response_last_ids&) { return false; }
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virtual bool onEvent(const Events::NGCEXT_ft1_request&) { return false; }
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virtual bool onEvent(const Events::NGCEXT_ft1_init&) { return false; }
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virtual bool onEvent(const Events::NGCEXT_ft1_init_ack&) { return false; }
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virtual bool onEvent(const Events::NGCEXT_ft1_data&) { return false; }
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virtual bool onEvent(const Events::NGCEXT_ft1_data_ack&) { return false; }
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virtual bool onEvent(const Events::NGCEXT_ft1_message&) { return false; }
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virtual bool onEvent(const Events::NGCEXT_ft1_have&) { return false; }
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virtual bool onEvent(const Events::NGCEXT_ft1_bitset&) { return false; }
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virtual bool onEvent(const Events::NGCEXT_pc1_announce&) { return false; }
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};
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using NGCEXTEventProviderI = EventProviderI<NGCEXTEventI>;
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class NGCEXTEventProvider : public ToxEventI, public NGCEXTEventProviderI {
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ToxI& _t;
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ToxEventProviderI& _tep;
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public:
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NGCEXTEventProvider(ToxI& t, ToxEventProviderI& tep);
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protected:
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bool parse_hs1_request_last_ids(
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uint32_t group_number, uint32_t peer_number,
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const uint8_t* data, size_t data_size,
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bool _private
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);
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bool parse_hs1_response_last_ids(
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uint32_t group_number, uint32_t peer_number,
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const uint8_t* data, size_t data_size,
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bool _private
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);
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bool parse_ft1_request(
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uint32_t group_number, uint32_t peer_number,
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const uint8_t* data, size_t data_size,
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bool _private
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);
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bool parse_ft1_init(
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uint32_t group_number, uint32_t peer_number,
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const uint8_t* data, size_t data_size,
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bool _private
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);
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bool parse_ft1_init_ack(
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uint32_t group_number, uint32_t peer_number,
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const uint8_t* data, size_t data_size,
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bool _private
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);
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bool parse_ft1_data(
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uint32_t group_number, uint32_t peer_number,
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const uint8_t* data, size_t data_size,
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bool _private
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);
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bool parse_ft1_data_ack(
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uint32_t group_number, uint32_t peer_number,
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const uint8_t* data, size_t data_size,
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bool _private
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);
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bool parse_ft1_message(
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uint32_t group_number, uint32_t peer_number,
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const uint8_t* data, size_t data_size,
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bool _private
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);
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bool parse_ft1_init_ack_v2(
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uint32_t group_number, uint32_t peer_number,
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const uint8_t* data, size_t data_size,
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bool _private
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);
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bool parse_ft1_have(
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uint32_t group_number, uint32_t peer_number,
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const uint8_t* data, size_t data_size,
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bool _private
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);
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bool parse_ft1_bitset(
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uint32_t group_number, uint32_t peer_number,
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const uint8_t* data, size_t data_size,
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bool _private
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);
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bool parse_pc1_announce(
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uint32_t group_number, uint32_t peer_number,
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const uint8_t* data, size_t data_size,
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bool _private
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);
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bool handlePacket(
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const uint32_t group_number,
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const uint32_t peer_number,
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const uint8_t* data,
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const size_t data_size,
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const bool _private
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);
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public: // send api
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bool send_ft1_request(
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uint32_t group_number, uint32_t peer_number,
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uint32_t file_kind,
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const uint8_t* file_id, size_t file_id_size
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);
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bool send_ft1_init(
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uint32_t group_number, uint32_t peer_number,
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uint32_t file_kind,
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uint64_t file_size,
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uint8_t transfer_id,
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const uint8_t* file_id, size_t file_id_size
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);
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bool send_ft1_init_ack(
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uint32_t group_number, uint32_t peer_number,
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uint8_t transfer_id
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);
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bool send_ft1_data(
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uint32_t group_number, uint32_t peer_number,
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uint8_t transfer_id,
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uint16_t sequence_id,
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const uint8_t* data, size_t data_size
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);
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bool send_ft1_data_ack(
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uint32_t group_number, uint32_t peer_number,
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uint8_t transfer_id,
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const uint16_t* seq_ids, size_t seq_ids_size
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);
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// TODO: add private version
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bool send_all_ft1_message(
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uint32_t group_number,
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uint32_t message_id,
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uint32_t file_kind,
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const uint8_t* file_id, size_t file_id_size
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);
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bool send_pc1_announce(
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uint32_t group_number, uint32_t peer_number,
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const uint8_t* id_data, size_t id_size
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);
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bool send_all_pc1_announce(
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uint32_t group_number,
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const uint8_t* id_data, size_t id_size
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);
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protected:
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bool onToxEvent(const Tox_Event_Group_Custom_Packet* e) override;
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bool onToxEvent(const Tox_Event_Group_Custom_Private_Packet* e) override;
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};
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