init ft (no ack or data yet)

ngc_hs1.cpp

@@ -116,6 +116,22 @@ static void _handle_HS1_RESPONSE_LAST_IDS(
 	size_t length
 );
 
+static void _handle_HS1_ft_request_message(
+	Tox *tox, NGC_EXT_CTX* ngc_ext_ctx,
+	uint32_t group_number,
+	uint32_t peer_number,
+	const uint8_t* file_id, size_t file_id_size
+);
+
+static bool _handle_HS1_ft_init_message(
+	Tox *tox, NGC_EXT_CTX* ngc_ext_ctx,
+	uint32_t group_number,
+	uint32_t peer_number,
+	const uint8_t* file_id, size_t file_id_size,
+	const uint8_t transfer_id,
+	const size_t file_size
+);
+
 bool NGC_HS1_init(NGC_EXT_CTX* ngc_ext_ctx, const struct NGC_HS1_options* options) {
 	ngc_ext_ctx->ngc_hs1_ctx = new NGC_HS1;
 	ngc_ext_ctx->ngc_hs1_ctx->options = *options;
@@ -123,6 +139,9 @@ bool NGC_HS1_init(NGC_EXT_CTX* ngc_ext_ctx, const struct NGC_HS1_options* option
 	ngc_ext_ctx->callbacks[HS1_REQUEST_LAST_IDS] = _handle_HS1_REQUEST_LAST_IDS;
 	ngc_ext_ctx->callbacks[HS1_RESPONSE_LAST_IDS] = _handle_HS1_RESPONSE_LAST_IDS;
 
+	NGC_FT1_register_callback_recv_request(ngc_ext_ctx, NGC_FT1_file_kind::NGC_HS1_MESSAGE_BY_ID, _handle_HS1_ft_request_message);
+	NGC_FT1_register_callback_recv_init(ngc_ext_ctx, NGC_FT1_file_kind::NGC_HS1_MESSAGE_BY_ID, _handle_HS1_ft_init_message);
+
 	return true;
 }
 
@@ -217,7 +236,7 @@ static void _iterate_group(Tox *tox, NGC_EXT_CTX* ngc_ext_ctx, uint32_t group_nu
 				}
 
 				// send request
-				NGC_FT1_request_private(
+				NGC_FT1_send_request_private(
 					tox, ngc_ext_ctx,
 					group_number, remote_peer_number,
 					NGC_FT1_file_kind::NGC_HS1_MESSAGE_BY_ID,
@@ -230,8 +249,8 @@ static void _iterate_group(Tox *tox, NGC_EXT_CTX* ngc_ext_ctx, uint32_t group_nu
 			}
 		}
 	}
-	assert(ngc_hs1_ctx->history.size() != 0);
 
+	assert(ngc_hs1_ctx->history.size() != 0);
 	assert(ngc_hs1_ctx->history.count(g_id));
 }
 
@@ -376,6 +395,77 @@ void NGC_HS1_record_message(
 	ngc_hs1_ctx->history[g_id].peers[p_id].append(message_id, type, std::string{message, message+length});
 }
 
+static void _handle_HS1_ft_request_message(
+	Tox *tox, NGC_EXT_CTX* ngc_ext_ctx,
+	uint32_t group_number,
+	uint32_t peer_number,
+	const uint8_t* file_id, size_t file_id_size
+) {
+	assert(file_id_size == TOX_GROUP_PEER_PUBLIC_KEY_SIZE+sizeof(uint32_t));
+
+	// get peer_key from file_id
+	_PeerKey peer_key;
+	std::copy(file_id, file_id+peer_key.size(), peer_key.data.begin());
+
+	// get msg_id from file_id
+	// HACK: little endian
+	uint32_t msg_id;
+	uint8_t* tmp_ptr = reinterpret_cast<uint8_t*>(&msg_id);
+	std::copy(file_id+TOX_GROUP_PEER_PUBLIC_KEY_SIZE, file_id+TOX_GROUP_PEER_PUBLIC_KEY_SIZE+sizeof(uint32_t), tmp_ptr);
+
+	fprintf(stderr, "got a ft request for xxx msg_id %08X\n", msg_id);
+
+	// get group id
+	_GroupKey group_id{};
+	{ // TODO: error
+		tox_group_get_chat_id(tox, group_number, group_id.data.data(), nullptr);
+	}
+
+	const auto& peers = ngc_ext_ctx->ngc_hs1_ctx->history[group_id].peers;
+
+	// do we have that message
+
+	if (!peers.count(peer_key)) {
+		fprintf(stderr, "got ft request for unknown peer\n");
+		return;
+	}
+
+	const auto& peer = peers.at(peer_key);
+	if (!peer.dict.count(msg_id)) {
+		fprintf(stderr, "got ft request for unknown message_id %08X\n", msg_id);
+		return;
+	}
+
+	// yes we do. now we need to init ft?
+
+	//fprintf(stderr, "TODO: init ft for %08X\n", msg_id);
+
+	// filesize is
+	// - 1 byte msg_type (normal / action)
+	// - x bytes msg_text
+	// msg_id is part of file_id
+	const auto& msg = peer.dict.at(msg_id);
+	size_t file_size = 1 + msg.text.size();
+
+	NGC_FT1_send_init_private(
+		tox, ngc_ext_ctx,
+		group_number, peer_number,
+		NGC_HS1_MESSAGE_BY_ID,
+		file_id, file_id_size,
+		file_size
+	);
+}
+
+static bool _handle_HS1_ft_init_message(
+	Tox *tox, NGC_EXT_CTX* ngc_ext_ctx,
+	uint32_t group_number,
+	uint32_t peer_number,
+	const uint8_t* file_id, size_t file_id_size,
+	const uint8_t transfer_id,
+	const size_t file_size
+) {
+	return false; // deny
+}
 
 #define _HS1_HAVE(x, error) if ((length - curser) < (x)) { error; }