mirror of
https://github.com/ton-blockchain/ton
synced 2025-03-09 15:40:10 +00:00
79 lines
3.1 KiB
C++
79 lines
3.1 KiB
C++
/*
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This file is part of TON Blockchain Library.
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TON Blockchain Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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TON Blockchain Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2017-2020 Telegram Systems LLP
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*/
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#include "dht-node.hpp"
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#include "keys/encryptor.h"
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namespace ton {
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namespace dht {
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td::Status DhtNode::update(tl_object_ptr<ton_api::dht_node> obj, td::int32 our_network_id) {
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if (version_ && obj->version_ <= version_) {
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return td::Status::Error(ErrorCode::notready, "too old version");
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}
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td::BufferSlice signature;
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td::int32 network_id = -1;
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if (obj->signature_.size() == 64) {
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signature = std::move(obj->signature_);
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} else if (obj->signature_.size() == 64 + 4) {
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signature = td::BufferSlice{obj->signature_.as_slice().remove_prefix(4)};
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network_id = *(td::uint32 *)obj->signature_.as_slice().remove_suffix(64).data();
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} else {
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return td::Status::Error(ErrorCode::notready, "invalid length of signature");
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}
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if (network_id != our_network_id && network_id != -1 && our_network_id != -1) {
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// Remove (network_id != -1 && our_network_id != -1) after network update
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return td::Status::Error(ErrorCode::notready, PSTRING() << "wrong network id (expected " << our_network_id
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<< ", found " << network_id << ")");
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}
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TRY_RESULT(pub, adnl::AdnlNodeIdFull::create(obj->id_));
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TRY_RESULT(addr_list, adnl::AdnlAddressList::create(std::move(obj->addr_list_)));
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if (!addr_list.public_only()) {
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return td::Status::Error(ErrorCode::notready, "dht node must have only public addresses");
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}
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if (!addr_list.size()) {
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return td::Status::Error(ErrorCode::notready, "dht node must have >0 addresses");
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}
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DhtNode new_node{std::move(pub), std::move(addr_list), obj->version_, network_id, std::move(signature)};
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TRY_STATUS(new_node.check_signature());
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*this = std::move(new_node);
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return td::Status::OK();
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}
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td::Status DhtNode::check_signature() const {
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TRY_RESULT(enc, id_.pubkey().create_encryptor());
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auto node2 = clone();
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node2.signature_ = {};
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TRY_STATUS_PREFIX(enc->check_signature(serialize_tl_object(node2.tl(), true).as_slice(), signature_.as_slice()),
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"bad node signature: ");
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return td::Status::OK();
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}
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tl_object_ptr<ton_api::dht_nodes> DhtNodesList::tl() const {
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std::vector<tl_object_ptr<ton_api::dht_node>> L;
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for (auto &n : list_) {
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L.emplace_back(n.tl());
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}
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return create_tl_object<ton_api::dht_nodes>(std::move(L));
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}
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} // namespace dht
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} // namespace ton
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