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_GET_PEERS_MESSAGE_H
36 #define D_DHT_GET_PEERS_MESSAGE_H
37 
38 #include "DHTQueryMessage.h"
39 
40 #include <vector>
41 
42 #include "DHTConstants.h"
43 #include "A2STR.h"
44 
45 namespace aria2 {
46 
47 class DHTPeerAnnounceStorage;
48 class DHTTokenTracker;
49 class BtRegistry;
50 class Peer;
51 
52 class DHTGetPeersMessage : public DHTQueryMessage {
53 private:
54   unsigned char infoHash_[DHT_ID_LENGTH];
55 
56   DHTPeerAnnounceStorage* peerAnnounceStorage_;
57 
58   DHTTokenTracker* tokenTracker_;
59 
60   BtRegistry* btRegistry_;
61 
62   int family_;
63 
64   void addLocalPeer(std::vector<std::shared_ptr<Peer>>& peers);
65 
66 protected:
67   virtual std::string toStringOptional() const CXX11_OVERRIDE;
68 
69 public:
70   DHTGetPeersMessage(const std::shared_ptr<DHTNode>& localNode,
71                      const std::shared_ptr<DHTNode>& remoteNode,
72                      const unsigned char* infoHash,
73                      const std::string& transactionID = A2STR::NIL);
74 
75   virtual void doReceivedAction() CXX11_OVERRIDE;
76 
77   virtual std::unique_ptr<Dict> getArgument() CXX11_OVERRIDE;
78 
79   virtual const std::string& getMessageType() const CXX11_OVERRIDE;
80 
getInfoHash()81   const unsigned char* getInfoHash() const { return infoHash_; }
82 
83   void setPeerAnnounceStorage(DHTPeerAnnounceStorage* storage);
84 
85   void setTokenTracker(DHTTokenTracker* tokenTracker);
86 
87   void setBtRegistry(BtRegistry* btRegistry);
88 
89   void setFamily(int family);
90 
91   static const std::string GET_PEERS;
92 
93   static const std::string INFO_HASH;
94 };
95 
96 } // namespace aria2
97 
98 #endif // D_DHT_GET_PEERS_MESSAGE_H
99