1 /* <!-- copyright */ 2 /* 3 * aria2 - The high speed download utility 4 * 5 * Copyright (C) 2006 Tatsuhiro Tsujikawa 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 20 * 21 * In addition, as a special exception, the copyright holders give 22 * permission to link the code of portions of this program with the 23 * OpenSSL library under certain conditions as described in each 24 * individual source file, and distribute linked combinations 25 * including the two. 26 * You must obey the GNU General Public License in all respects 27 * for all of the code used other than OpenSSL. If you modify 28 * file(s) with this exception, you may extend this exception to your 29 * version of the file(s), but you are not obligated to do so. If you 30 * do not wish to do so, delete this exception statement from your 31 * version. If you delete this exception statement from all source 32 * files in the program, then also delete it here. 33 */ 34 /* copyright --> */ 35 #ifndef D_DHT_MESSAGE_FACTORY_H 36 #define D_DHT_MESSAGE_FACTORY_H 37 38 #include "common.h" 39 40 #include <string> 41 #include <vector> 42 #include <memory> 43 44 #include "A2STR.h" 45 #include "ValueBase.h" 46 47 namespace aria2 { 48 49 class DHTMessage; 50 class DHTQueryMessage; 51 class DHTResponseMessage; 52 class DHTPingMessage; 53 class DHTPingReplyMessage; 54 class DHTFindNodeMessage; 55 class DHTFindNodeReplyMessage; 56 class DHTGetPeersMessage; 57 class DHTGetPeersReplyMessage; 58 class DHTAnnouncePeerMessage; 59 class DHTAnnouncePeerReplyMessage; 60 class DHTUnknownMessage; 61 class DHTNode; 62 class Peer; 63 64 class DHTMessageFactory { 65 public: 66 virtual ~DHTMessageFactory() = default; 67 68 virtual std::unique_ptr<DHTQueryMessage> 69 createQueryMessage(const Dict* dict, const std::string& ipaddr, 70 uint16_t port) = 0; 71 72 virtual std::unique_ptr<DHTResponseMessage> 73 createResponseMessage(const std::string& messageType, const Dict* dict, 74 const std::string& ipaddr, uint16_t port) = 0; 75 76 virtual std::unique_ptr<DHTPingMessage> 77 createPingMessage(const std::shared_ptr<DHTNode>& remoteNode, 78 const std::string& transactionID = A2STR::NIL) = 0; 79 80 virtual std::unique_ptr<DHTPingReplyMessage> 81 createPingReplyMessage(const std::shared_ptr<DHTNode>& remoteNode, 82 const unsigned char* id, 83 const std::string& transactionID) = 0; 84 85 virtual std::unique_ptr<DHTFindNodeMessage> 86 createFindNodeMessage(const std::shared_ptr<DHTNode>& remoteNode, 87 const unsigned char* targetNodeID, 88 const std::string& transactionID = A2STR::NIL) = 0; 89 90 virtual std::unique_ptr<DHTFindNodeReplyMessage> createFindNodeReplyMessage( 91 const std::shared_ptr<DHTNode>& remoteNode, 92 std::vector<std::shared_ptr<DHTNode>> closestKNodes, 93 const std::string& transactionID) = 0; 94 95 virtual std::unique_ptr<DHTGetPeersMessage> 96 createGetPeersMessage(const std::shared_ptr<DHTNode>& remoteNode, 97 const unsigned char* infoHash, 98 const std::string& transactionID = A2STR::NIL) = 0; 99 100 virtual std::unique_ptr<DHTGetPeersReplyMessage> createGetPeersReplyMessage( 101 const std::shared_ptr<DHTNode>& remoteNode, 102 std::vector<std::shared_ptr<DHTNode>> closestKNodes, 103 std::vector<std::shared_ptr<Peer>> peers, const std::string& token, 104 const std::string& transactionID) = 0; 105 106 virtual std::unique_ptr<DHTAnnouncePeerMessage> 107 createAnnouncePeerMessage(const std::shared_ptr<DHTNode>& remoteNode, 108 const unsigned char* infoHash, uint16_t tcpPort, 109 const std::string& token, 110 const std::string& transactionID = A2STR::NIL) = 0; 111 112 virtual std::unique_ptr<DHTAnnouncePeerReplyMessage> 113 createAnnouncePeerReplyMessage(const std::shared_ptr<DHTNode>& remoteNode, 114 const std::string& transactionID) = 0; 115 116 virtual std::unique_ptr<DHTUnknownMessage> 117 createUnknownMessage(const unsigned char* data, size_t length, 118 const std::string& ipaddr, uint16_t port) = 0; 119 }; 120 121 } // namespace aria2 122 123 #endif // D_DHT_MESSAGE_FACTORY_H 124