1/*
2 * libjingle
3 * Copyright 2012, Google Inc.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 *  1. Redistributions of source code must retain the above copyright notice,
9 *     this list of conditions and the following disclaimer.
10 *  2. Redistributions in binary form must reproduce the above copyright notice,
11 *     this list of conditions and the following disclaimer in the documentation
12 *     and/or other materials provided with the distribution.
13 *  3. The name of the author may not be used to endorse or promote products
14 *     derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#include <iostream>  // NOLINT
29
30#include "talk/p2p/base/basicpacketsocketfactory.h"
31#include "talk/p2p/base/turnserver.h"
32#include "webrtc/base/asyncudpsocket.h"
33#include "webrtc/base/optionsfile.h"
34#include "webrtc/base/stringencode.h"
35#include "webrtc/base/thread.h"
36
37static const char kSoftware[] = "libjingle TurnServer";
38
39class TurnFileAuth : public cricket::TurnAuthInterface {
40 public:
41  explicit TurnFileAuth(const std::string& path) : file_(path) {
42    file_.Load();
43  }
44  virtual bool GetKey(const std::string& username, const std::string& realm,
45                      std::string* key) {
46    // File is stored as lines of <username>=<HA1>.
47    // Generate HA1 via "echo -n "<username>:<realm>:<password>" | md5sum"
48    std::string hex;
49    bool ret = file_.GetStringValue(username, &hex);
50    if (ret) {
51      char buf[32];
52      size_t len = rtc::hex_decode(buf, sizeof(buf), hex);
53      *key = std::string(buf, len);
54    }
55    return ret;
56  }
57 private:
58  rtc::OptionsFile file_;
59};
60
61int main(int argc, char **argv) {
62  if (argc != 5) {
63    std::cerr << "usage: turnserver int-addr ext-ip realm auth-file"
64              << std::endl;
65    return 1;
66  }
67
68  rtc::SocketAddress int_addr;
69  if (!int_addr.FromString(argv[1])) {
70    std::cerr << "Unable to parse IP address: " << argv[1] << std::endl;
71    return 1;
72  }
73
74  rtc::IPAddress ext_addr;
75  if (!IPFromString(argv[2], &ext_addr)) {
76    std::cerr << "Unable to parse IP address: " << argv[2] << std::endl;
77    return 1;
78  }
79
80  rtc::Thread* main = rtc::Thread::Current();
81  rtc::AsyncUDPSocket* int_socket =
82      rtc::AsyncUDPSocket::Create(main->socketserver(), int_addr);
83  if (!int_socket) {
84    std::cerr << "Failed to create a UDP socket bound at"
85              << int_addr.ToString() << std::endl;
86    return 1;
87  }
88
89  cricket::TurnServer server(main);
90  TurnFileAuth auth(argv[4]);
91  server.set_realm(argv[3]);
92  server.set_software(kSoftware);
93  server.set_auth_hook(&auth);
94  server.AddInternalSocket(int_socket, cricket::PROTO_UDP);
95  server.SetExternalSocketFactory(new rtc::BasicPacketSocketFactory(),
96                                  rtc::SocketAddress(ext_addr, 0));
97
98  std::cout << "Listening internally at " << int_addr.ToString() << std::endl;
99
100  main->Run();
101  return 0;
102}
103