1 | #include <cstdlib>
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2 | #include <iostream>
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3 | #include <unistd.h>
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4 |
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5 | #include <boost/bind.hpp>
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6 | #include <boost/asio.hpp>
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7 | #include <boost/asio/ssl.hpp>
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8 |
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9 | typedef boost::asio::ssl::stream<boost::asio::ip::tcp::socket> ssl_socket;
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10 |
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11 | class Server
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12 | {
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13 | public:
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14 | Server(boost::asio::io_service& io_service, unsigned short port) :
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15 | io_service_(io_service),
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16 | acceptor_(io_service, boost::asio::ip::tcp::endpoint(boost::asio::ip::tcp::v4(), port)),
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17 | context_(boost::asio::ssl::context::sslv3)
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18 | {
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19 | context_.set_options(boost::asio::ssl::context::no_sslv2
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20 | | boost::asio::ssl::context::single_dh_use);
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21 | context_.use_certificate_chain_file("cert.pem");
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22 | context_.use_private_key_file("key.pem", boost::asio::ssl::context::pem);
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23 | context_.use_tmp_dh_file("dh512.pem");
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24 |
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25 | std::cout << "Server: Server accepting connection on localhost 5005\n";
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26 | socket_ = boost::shared_ptr<ssl_socket>(new ssl_socket(io_service_, context_));
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27 |
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28 | acceptor_.async_accept(socket_->lowest_layer(),
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29 | boost::bind(&Server::HandleAccept, this,
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30 | boost::asio::placeholders::error));
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31 | }
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32 |
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33 | void HandleAccept(const boost::system::error_code& error)
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34 | {
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35 | if (error)
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36 | {
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37 | std::cerr << "Server: Connect error: " << error.message() << "\n";
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38 | }
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39 | else
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40 | {
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41 | std::cout << "Server: Client connected\n";
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42 | socket_->async_handshake(boost::asio::ssl::stream_base::server,
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43 | boost::bind(&Server::HandleHandshake, this,
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44 | boost::asio::placeholders::error));
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45 | }
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46 | }
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47 |
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48 | void HandleHandshake(const boost::system::error_code& error)
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49 | {
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50 | if (error)
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51 | {
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52 | std::cerr << "Server: Handshake failed: " << error.message() << "\n";
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53 | }
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54 | else
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55 | {
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56 | std::cout << "Server: Handshake succeeded\n";
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57 | }
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58 | }
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59 |
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60 |
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61 | private:
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62 | boost::asio::io_service& io_service_;
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63 | boost::asio::ip::tcp::acceptor acceptor_;
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64 | boost::asio::ssl::context context_;
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65 | boost::shared_ptr<ssl_socket> socket_;
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66 | };
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67 |
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68 | class Client
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69 | {
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70 | public:
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71 | Client(boost::asio::io_service& io_service,
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72 | boost::asio::ssl::context& context,
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73 | boost::asio::ip::tcp::resolver::iterator endpoint_iterator)
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74 | : socket_(io_service, context)
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75 | {
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76 | socket_.set_verify_mode(boost::asio::ssl::verify_peer);
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77 | boost::asio::async_connect(socket_.lowest_layer(), endpoint_iterator,
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78 | boost::bind(&Client::HandleConnect, this,
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79 | boost::asio::placeholders::error));
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80 | }
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81 |
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82 | void HandleConnect(const boost::system::error_code& error)
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83 | {
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84 | if (error)
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85 | {
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86 | std::cerr << "Client: Connection failed: " << error.message() << "\n";
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87 | }
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88 | else
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89 | {
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90 | std::cout << "Client: Connected\n";
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91 | socket_.async_handshake(boost::asio::ssl::stream_base::client,
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92 | boost::bind(&Client::HandleHandshake, this,
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93 | boost::asio::placeholders::error));
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94 | }
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95 | }
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96 |
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97 | void HandleHandshake(const boost::system::error_code& error)
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98 | {
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99 | if (error)
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100 | {
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101 | std::cerr << "Client: Handshake failed: " << error.message() << "\n";
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102 | }
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103 | else
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104 | {
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105 | std::cout << "Client: Handshake succeeded\n";
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106 | }
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107 | }
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108 |
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109 | private:
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110 | boost::asio::ssl::stream<boost::asio::ip::tcp::socket> socket_;
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111 | };
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112 |
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113 |
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114 |
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115 | void StartServer()
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116 | {
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117 | try
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118 | {
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119 | boost::asio::io_service io_service;
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120 | Server server(io_service, 5005);
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121 |
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122 | io_service.run();
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123 | }
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124 | catch(const std::exception& e)
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125 | {
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126 | std::cerr << "Exception: " << std::string(e.what()) + "\n";
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127 | }
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128 | }
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129 |
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130 |
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131 | void StartClient()
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132 | {
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133 | try
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134 | {
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135 | boost::asio::io_service io_service;
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136 |
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137 | boost::asio::ip::tcp::resolver resolver(io_service);
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138 | boost::asio::ip::tcp::resolver::query query("127.0.0.1", "5005");
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139 | boost::asio::ip::tcp::resolver::iterator iterator = resolver.resolve(query);
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140 |
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141 | boost::asio::ssl::context ctx(boost::asio::ssl::context::tlsv1);
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142 | ctx.load_verify_file("ca.pem");
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143 | ctx.set_options(boost::asio::ssl::context::no_sslv2);
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144 | ctx.set_options(boost::asio::ssl::context::no_sslv3);
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145 |
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146 | Client client(io_service, ctx, iterator);
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147 |
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148 | io_service.run();
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149 | }
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150 | catch (std::exception& e)
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151 | {
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152 | std::cerr << "Exception: " << e.what() << "\n";
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153 | }
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154 | }
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155 |
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156 |
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157 | int main(int argc, char *argv[])
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158 | {
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159 | pid_t pid = fork();
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160 | if (pid > 0)
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161 | {
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162 | //parent
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163 | StartServer();
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164 | }
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165 | else if (pid == 0)
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166 | {
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167 | //child
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168 | sleep(2);
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169 | StartClient();
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170 | }
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171 | else
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172 | {
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173 | std::cerr << "Fork failed\n";
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174 | }
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175 | return 0;
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176 | }
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