1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
/*
* Copyright (C) 2014-2023 Savoir-faire Linux Inc.
*
* Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "tools_common.h"
#include <opendht/rng.h>
extern "C" {
#include <gnutls/gnutls.h>
}
#include <ctime>
using namespace dht;
static std::mt19937_64 rd {dht::crypto::random_device{}()};
static std::uniform_int_distribution<dht::Value::Id> rand_id;
const std::string printTime(const std::time_t& now) {
struct tm tstruct = *localtime(&now);
char buf[80];
strftime(buf, sizeof(buf), "%Y-%m-%d %X", &tstruct);
return buf;
}
void print_usage() {
std::cout << "Usage: dhtchat [-n network_id] [-p local_port] [-b bootstrap_host[:port]]" << std::endl << std::endl;
std::cout << "dhtchat, a simple OpenDHT command line chat client." << std::endl;
std::cout << "Report bugs to: https://opendht.net" << std::endl;
}
int
main(int argc, char **argv)
{
auto params = parseArgs(argc, argv);
if (params.help) {
print_usage();
return 0;
}
#ifdef _MSC_VER
gnutls_global_init();
#endif
DhtRunner dht;
try {
params.generate_identity = true;
auto dhtConf = getDhtConfig(params);
dht.run(params.port, dhtConf.first, std::move(dhtConf.second));
if (not params.bootstrap.empty())
dht.bootstrap(params.bootstrap);
print_node_info(dht.getNodeInfo());
std::cout << " type 'c {hash}' to join a channel" << std::endl << std::endl;
bool connected {false};
InfoHash room;
std::future<size_t> token;
const InfoHash myid = dht.getId();
#ifndef _MSC_VER
// using the GNU History API
using_history();
#endif
while (true)
{
// using the GNU Readline API
std::string line = readLine(connected ? PROMPT : "> ");
if (!line.empty() && line[0] == '\0')
break;
if (line.empty())
continue;
std::istringstream iss(line);
std::string op, idstr;
iss >> op;
if (not connected) {
if (op == "x" || op == "q" || op == "exit" || op == "quit")
break;
else if (op == "c") {
iss >> idstr;
room = InfoHash(idstr);
if (not room) {
room = InfoHash::get(idstr);
std::cout << "Joining h(" << idstr << ") = " << room << std::endl;
}
token = dht.listen<dht::ImMessage>(room, [&](dht::ImMessage&& msg) {
if (msg.from != myid)
std::cout << msg.from.toString() << " at " << printTime(msg.date)
<< " (took " << print_dt(std::chrono::system_clock::now() - std::chrono::system_clock::from_time_t(msg.date))
<< "s) " << (msg.to == myid ? "ENCRYPTED ":"") << ": " << msg.id << " - " << msg.msg << std::endl;
return true;
});
connected = true;
} else {
std::cout << "Unknown command. Type 'c {hash}' to join a channel" << std::endl << std::endl;
}
} else {
auto now = std::chrono::system_clock::to_time_t(std::chrono::system_clock::now());
if (op == "d") {
dht.cancelListen(room, std::move(token));
connected = false;
continue;
} else if (op == "e") {
iss >> idstr;
std::getline(iss, line);
dht.putEncrypted(room, InfoHash(idstr), dht::ImMessage(rand_id(rd), std::move(line), now), [](bool ok) {
//dht.cancelPut(room, id);
if (not ok)
std::cout << "Message publishing failed !" << std::endl;
});
} else {
dht.putSigned(room, dht::ImMessage(rand_id(rd), std::move(line), now), [](bool ok) {
//dht.cancelPut(room, id);
if (not ok)
std::cout << "Message publishing failed !" << std::endl;
});
}
}
}
} catch(const std::exception&e) {
std::cerr << std::endl << e.what() << std::endl;
}
std::cout << std::endl << "Stopping node..." << std::endl;
dht.join();
#ifdef _MSC_VER
gnutls_global_deinit();
#endif
return 0;
}
|
