120 lines
3.6 KiB
C++
120 lines
3.6 KiB
C++
/* <!-- copyright */
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/*
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* aria2 - The high speed download utility
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*
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* Copyright (C) 2006 Tatsuhiro Tsujikawa
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU 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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*
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* This program 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* In addition, as a special exception, the copyright holders give
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* permission to link the code of portions of this program with the
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* OpenSSL library under certain conditions as described in each
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* individual source file, and distribute linked combinations
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* including the two.
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* You must obey the GNU General Public License in all respects
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* for all of the code used other than OpenSSL. If you modify
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* file(s) with this exception, you may extend this exception to your
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* version of the file(s), but you are not obligated to do so. If you
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* do not wish to do so, delete this exception statement from your
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* version. If you delete this exception statement from all source
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* files in the program, then also delete it here.
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*/
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/* copyright --> */
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#ifndef D_BT_HANDSHAKE_MESSAGE_H
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#define D_BT_HANDSHAKE_MESSAGE_H
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#include "SimpleBtMessage.h"
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#include <array>
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#include "BtConstants.h"
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namespace aria2 {
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class BtHandshakeMessage : public SimpleBtMessage {
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public:
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constexpr static size_t PSTR_LENGTH = 19;
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constexpr static size_t RESERVED_LENGTH = 8;
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constexpr static size_t MESSAGE_LENGTH = 68;
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const static unsigned char BT_PSTR[];
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private:
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uint8_t pstrlen_;
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std::array<unsigned char, PSTR_LENGTH> pstr_;
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std::array<unsigned char, RESERVED_LENGTH> reserved_;
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std::array<unsigned char, INFO_HASH_LENGTH> infoHash_;
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std::array<unsigned char, PEER_ID_LENGTH> peerId_;
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void init();
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public:
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BtHandshakeMessage();
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/**
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* infoHash must be 20 byte length.
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* peerId must be 20 byte length.
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*/
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BtHandshakeMessage(const unsigned char* infoHash,
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const unsigned char* peerId);
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static std::unique_ptr<BtHandshakeMessage> create(const unsigned char* data,
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size_t dataLength);
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virtual ~BtHandshakeMessage();
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static const uint8_t ID = INT8_MAX;
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const static char NAME[];
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virtual void doReceivedAction() CXX11_OVERRIDE{};
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virtual std::vector<unsigned char> createMessage() CXX11_OVERRIDE;
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virtual std::string toString() const CXX11_OVERRIDE;
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bool isFastExtensionSupported() const;
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bool isExtendedMessagingEnabled() const;
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bool isDHTEnabled() const;
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void setDHTEnabled(bool enabled)
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{
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if (enabled) {
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reserved_[7] |= 0x01u;
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}
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else {
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reserved_[7] &= ~0x01u;
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}
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}
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uint8_t getPstrlen() const { return pstrlen_; }
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const unsigned char* getPstr() const { return pstr_.data(); }
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const unsigned char* getReserved() const { return reserved_.data(); }
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const unsigned char* getInfoHash() const { return infoHash_.data(); }
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void setInfoHash(const unsigned char* infoHash);
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const unsigned char* getPeerId() const { return peerId_.data(); }
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void setPeerId(const unsigned char* peerId);
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};
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} // namespace aria2
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#endif // D_HANDSHAKE_MESSAGE_H
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