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ton/tonlib/tonlib/LastBlock.cpp
2019-09-24 01:10:57 +04:00

186 lines
6.4 KiB
C++

/*
This file is part of TON Blockchain Library.
TON Blockchain Library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
TON Blockchain Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
Copyright 2017-2019 Telegram Systems LLP
*/
#include "tonlib/LastBlock.h"
#include "ton/lite-tl.hpp"
#include "lite-client/lite-client-common.h"
namespace tonlib {
td::StringBuilder& operator<<(td::StringBuilder& sb, const LastBlockState& state) {
return sb << td::tag("last_block", state.last_block_id.to_str())
<< td::tag("last_key_block", state.last_key_block_id.to_str()) << td::tag("utime", state.utime);
}
LastBlock::LastBlock(ExtClientRef client, LastBlockState state, td::unique_ptr<Callback> callback)
: state_(std::move(state)), callback_(std::move(callback)) {
client_.set_client(client);
}
void LastBlock::get_last_block(td::Promise<LastBlockState> promise) {
if (promises_.empty()) {
total_sync_ = td::Timer();
validate_ = td::Timer(true);
queries_ = 0;
LOG(INFO) << "Begin last block synchronization " << state_;
do_get_last_block();
}
promises_.push_back(std::move(promise));
}
void LastBlock::do_get_last_block() {
//client_.send_query(ton::lite_api::liteServer_getMasterchainInfo(),
//[this](auto r_info) { this->on_masterchain_info(std::move(r_info)); });
//return;
//liteServer.getBlockProof mode:# known_block:tonNode.blockIdExt target_block:mode.0?tonNode.blockIdExt = liteServer.PartialBlockProof;
queries_++;
client_.send_query(
ton::lite_api::liteServer_getBlockProof(0, create_tl_lite_block_id(state_.last_key_block_id), nullptr),
[this, from = state_.last_key_block_id](auto r_block_proof) {
this->on_block_proof(from, std::move(r_block_proof));
});
}
td::Result<bool> LastBlock::process_block_proof(
ton::BlockIdExt from,
td::Result<ton::ton_api::object_ptr<ton::lite_api::liteServer_partialBlockProof>> r_block_proof) {
validate_.resume();
SCOPE_EXIT {
validate_.pause();
};
TRY_RESULT(block_proof, std::move(r_block_proof));
LOG(DEBUG) << "Got proof FROM\n" << to_string(block_proof->from_) << "TO\n" << to_string(block_proof->to_);
TRY_RESULT(chain, liteclient::deserialize_proof_chain(std::move(block_proof)));
if (chain->from != from) {
return td::Status::Error(PSLICE() << "block proof chain starts from block " << chain->from.to_str()
<< ", not from requested block " << from.to_str());
}
TRY_STATUS(chain->validate());
bool is_changed = false;
is_changed |= update_mc_last_block(chain->to);
if (chain->has_key_block) {
is_changed |= update_mc_last_key_block(chain->key_blkid);
}
if (chain->has_utime) {
update_utime(chain->last_utime);
}
if (is_changed) {
callback_->on_state_changed(state_);
}
return chain->complete;
}
void LastBlock::on_block_proof(
ton::BlockIdExt from,
td::Result<ton::ton_api::object_ptr<ton::lite_api::liteServer_partialBlockProof>> r_block_proof) {
auto r_is_ready = process_block_proof(from, std::move(r_block_proof));
bool is_ready;
if (r_is_ready.is_error()) {
LOG(WARNING) << "Error during last block synchronization " << r_is_ready.error();
is_ready = true;
} else {
is_ready = r_is_ready.move_as_ok();
}
if (is_ready) {
LOG(INFO) << "End last block synchronization " << state_ << "\n"
<< " net queries: " << queries_ << "\n"
<< " total: " << total_sync_ << " validation: " << validate_;
for (auto& promise : promises_) {
auto state = state_;
promise.set_value(std::move(state));
}
promises_.clear();
} else {
do_get_last_block();
}
}
void LastBlock::on_masterchain_info(
td::Result<ton::ton_api::object_ptr<ton::lite_api::liteServer_masterchainInfo>> r_info) {
if (r_info.is_ok()) {
auto info = r_info.move_as_ok();
update_zero_state(create_zero_state_id(info->init_));
update_mc_last_block(create_block_id(info->last_));
} else {
LOG(WARNING) << "Failed liteServer_getMasterchainInfo " << r_info.error();
}
for (auto& promise : promises_) {
auto state = state_;
promise.set_value(std::move(state));
}
promises_.clear();
}
void LastBlock::update_zero_state(ton::ZeroStateIdExt zero_state_id) {
if (!zero_state_id.is_valid()) {
LOG(ERROR) << "Ignore invalid zero state update";
return;
}
if (!state_.zero_state_id.is_valid()) {
LOG(INFO) << "Init zerostate: " << zero_state_id.to_str();
state_.zero_state_id = std::move(zero_state_id);
return;
}
if (state_.zero_state_id == state_.zero_state_id) {
return;
}
LOG(FATAL) << "Masterchain zerostate mismatch: expected: " << state_.zero_state_id.to_str() << ", found "
<< zero_state_id.to_str();
// TODO: all other updates will be inconsitent.
// One will have to restart ton client
}
bool LastBlock::update_mc_last_block(ton::BlockIdExt mc_block_id) {
if (!mc_block_id.is_valid()) {
LOG(ERROR) << "Ignore invalid masterchain block";
return false;
}
if (!state_.last_block_id.is_valid() || state_.last_block_id.id.seqno < mc_block_id.id.seqno) {
state_.last_block_id = mc_block_id;
LOG(INFO) << "Update masterchain block id: " << state_.last_block_id.to_str();
return true;
}
return false;
}
bool LastBlock::update_mc_last_key_block(ton::BlockIdExt mc_key_block_id) {
if (!mc_key_block_id.is_valid()) {
LOG(ERROR) << "Ignore invalid masterchain block";
return false;
}
if (!state_.last_key_block_id.is_valid() || state_.last_key_block_id.id.seqno < mc_key_block_id.id.seqno) {
state_.last_key_block_id = mc_key_block_id;
LOG(INFO) << "Update masterchain key block id: " << state_.last_key_block_id.to_str();
return true;
}
return false;
}
void LastBlock::update_utime(td::int64 utime) {
if (state_.utime < utime) {
state_.utime = utime;
}
}
} // namespace tonlib