initial commit

overlay/overlay-broadcast.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 "auto/tl/ton_api.h"
+#include "overlay/overlay.h"
+#include "td/utils/List.h"
+
+namespace ton {
+
+namespace overlay {
+
+class OverlayImpl;
+
+class BroadcastSimple : public td::ListNode {
+ private:
+  Overlay::BroadcastHash broadcast_hash_;
+
+  PublicKey source_;
+  std::shared_ptr<Certificate> cert_;
+  td::uint32 flags_;
+  td::BufferSlice data_;
+  td::uint32 date_;
+  td::BufferSlice signature_;
+
+  OverlayImpl *overlay_;
+
+  td::Status check_time();
+  td::Status check_duplicate();
+  td::Status check_source();
+  td::Status check_signature();
+
+  td::Status run_checks();
+  td::Status distribute();
+  td::BufferSlice to_sign();
+
+ public:
+  BroadcastSimple(Overlay::BroadcastHash broadcast_hash, PublicKey source, std::shared_ptr<Certificate> cert,
+                  td::uint32 flags, td::BufferSlice data, td::uint32 date, td::BufferSlice signature,
+                  OverlayImpl *overlay)
+      : broadcast_hash_(broadcast_hash)
+      , source_(std::move(source))
+      , cert_(std::move(cert))
+      , flags_(flags)
+      , data_(std::move(data))
+      , date_(date)
+      , signature_(std::move(signature))
+      , overlay_(overlay) {
+  }
+
+  Overlay::BroadcastHash get_hash() const {
+    return broadcast_hash_;
+  }
+
+  td::uint32 data_size() const {
+    return static_cast<td::uint32>(data_.size());
+  }
+
+  void update_source(PublicKey source) {
+    source_ = source;
+  }
+  void update_signature(td::BufferSlice signature) {
+    signature_ = std::move(signature);
+  }
+  void deliver();
+
+  td::Status run() {
+    TRY_STATUS(run_checks());
+    TRY_STATUS(distribute());
+    deliver();
+    return td::Status::OK();
+  }
+
+  tl_object_ptr<ton_api::overlay_broadcast> tl() const;
+  td::BufferSlice serialize();
+
+  void update_overlay(OverlayImpl *overlay);
+
+  static td::Status create(OverlayImpl *overlay, tl_object_ptr<ton_api::overlay_broadcast> broadcast);
+  static td::Status create_new(td::actor::ActorId<OverlayImpl> overlay, td::actor::ActorId<keyring::Keyring> keyring,
+                               PublicKeyHash local_id, td::BufferSlice data, td::uint32 flags);
+
+  static Overlay::BroadcastHash compute_broadcast_id(PublicKey source, Overlay::BroadcastDataHash data_hash,
+                                                     td::uint32 flags);
+  static Overlay::BroadcastHash compute_broadcast_id(PublicKeyHash source, Overlay::BroadcastDataHash data_hash,
+                                                     td::uint32 flags);
+
+  static BroadcastSimple *from_list_node(ListNode *node) {
+    return static_cast<BroadcastSimple *>(node);
+  }
+};
+
+}  // namespace overlay
+
+}  // namespace ton