initial commit

common/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.0.2 FATAL_ERROR)
+
+set(COMMON_SOURCE
+  checksum.h
+  errorcode.h 
+  status.h
+  io.hpp
+
+  errorlog.h
+  errorlog.cpp
+)
+
+
+add_library(common STATIC ${COMMON_SOURCE})
+
+target_include_directories(common PUBLIC 
+  $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}> 
+  $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>/.. 
+  ${OPENSSL_INCLUDE_DIR}
+)
+target_link_libraries(common PRIVATE tdutils ton_crypto )

common/checksum.h

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+/*
+    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
+*/
+#pragma once
+
+#include "td/utils/int_types.h"
+#include "crypto/common/bitstring.h"
+#include "td/utils/crypto.h"
+
+namespace td {
+
+inline Bits256 sha256_bits256(Slice data) {
+  Bits256 id;
+  sha256(data, id.as_slice());
+  return id;
+}
+
+}  // namespace td

common/delay.h

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+/*
+    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
+*/
+#pragma once
+
+#include "td/actor/actor.h"
+
+namespace ton {
+
+template <typename T>
+class DelayedAction : public td::actor::Actor {
+ public:
+  DelayedAction(T promise) : promise_(std::move(promise)) {
+  }
+  void set_timer(td::Timestamp t) {
+    alarm_timestamp() = t;
+  }
+  void alarm() override {
+    promise_();
+    stop();
+  }
+
+  static void create(T promise, td::Timestamp t) {
+    auto A = td::actor::create_actor<DelayedAction>("delayed", std::move(promise));
+    td::actor::send_closure(A, &DelayedAction::set_timer, t);
+    A.release();
+  }
+
+ private:
+  T promise_;
+};
+
+template <typename T>
+void delay_action(T promise, td::Timestamp timeout) {
+  DelayedAction<T>::create(std::move(promise), timeout);
+}
+}  // namespace ton

common/errorcode.h

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+/*
+    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
+*/
+#pragma once
+
+namespace ton {
+
+enum ErrorCode : int { failure = 601, error = 602, warning = 603, protoviolation = 621, notready = 651, timeout = 652 };
+
+}

common/errorlog.cpp

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+/*
+    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 "errorlog.h"
+#include "checksum.h"
+
+#include "td/utils/port/FileFd.h"
+#include "td/utils/filesystem.h"
+#include "td/utils/port/path.h"
+#include "td/utils/Time.h"
+
+#include <mutex>
+
+namespace ton {
+
+namespace errorlog {
+
+td::FileFd fd;
+std::mutex init_mutex_;
+std::string files_path_;
+
+void ErrorLog::create(std::string db_root) {
+  init_mutex_.lock();
+  if (!fd.empty()) {
+    init_mutex_.unlock();
+    return;
+  }
+  auto path = db_root + "/error";
+  td::mkdir(path).ensure();
+  files_path_ = path + "/files";
+  td::mkdir(files_path_).ensure();
+  auto R = td::FileFd::open(path + "/log.txt",
+                            td::FileFd::Flags::Write | td::FileFd::Flags::Append | td::FileFd::Flags::Create);
+  R.ensure();
+  fd = R.move_as_ok();
+  init_mutex_.unlock();
+}
+
+void ErrorLog::log(std::string error) {
+  error = PSTRING() << "[" << td::Clocks::system() << "] " << error << "\n";
+  CHECK(!fd.empty());
+  auto s = td::Slice{error};
+  while (s.size() > 0) {
+    auto R = fd.write(s);
+    R.ensure();
+    s.remove_prefix(R.move_as_ok());
+  }
+}
+
+void ErrorLog::log_file(td::BufferSlice data) {
+  auto filename = sha256_bits256(data.as_slice());
+  auto path = files_path_ + "/" + filename.to_hex();
+
+  td::write_file(path, data.as_slice()).ensure();
+}
+
+}  // namespace errorlog
+
+}  // namespace ton

common/errorlog.h

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+/*
+    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
+*/
+#pragma once
+
+#include <string>
+#include "td/utils/buffer.h"
+
+namespace ton {
+
+namespace errorlog {
+
+class ErrorLog {
+ public:
+  static void create(std::string db_root);
+  static void log(std::string error);
+  static void log_file(td::BufferSlice data);
+};
+
+}  // namespace errorlog
+
+}  // namespace ton

common/io.hpp

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+/*
+    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
+*/
+#pragma once
+
+#include "td/utils/buffer.h"
+#include "td/utils/misc.h"
+#include "td/utils/crypto.h"
+#include "td/utils/format.h"
+#include "td/utils/base64.h"
+#include "tl-utils/tl-utils.hpp"
+
+#include "common/errorcode.h"
+#include "common/status.h"
+#include "keys/keys.hpp"
+
+#include "crypto/common/bitstring.h"
+
+namespace td {
+
+template <unsigned size>
+StringBuilder &operator<<(StringBuilder &stream, const td::BitArray<size> &x) {
+  return stream << td::base64_encode(as_slice(x));
+}
+
+inline StringBuilder &operator<<(StringBuilder &stream, const ton::PublicKeyHash &value) {
+  return stream << value.bits256_value();
+}
+
+}  // namespace td

common/status.h

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+/*
+    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
+*/
+#pragma once
+
+#include "td/utils/Status.h"
+
+namespace td {
+
+inline td::Status status_prefix(td::Status &&status, std::string prefix) {
+  if (status.is_ok()) {
+    return std::move(status);
+  } else {
+    return td::Status::Error(status.code(), prefix + status.message().str());
+  }
+}
+
+}  // namespace td