sip_client.cpp

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#include <condition_variable>
 
#include <websocketpp/config/asio_no_tls_client.hpp>
 
#include <websocketpp/client.hpp>
 
#include <iostream>
 
#include <boost/thread/thread.hpp>
 
typedef websocketpp::client<websocketpp::config::asio_client> client;
 
using websocketpp::lib::placeholders::_1;
using websocketpp::lib::placeholders::_2;
using websocketpp::lib::bind;
 
// pull out the type of messages sent by our config
typedef websocketpp::config::asio_client::message_type::ptr message_ptr;
 
// Create a server endpoint
client sip_client;
 
 
bool received;
 
void on_open(client* c, websocketpp::connection_hdl hdl) {
    // now it is safe to use the connection
    std::cout << "connection ready" << std::endl;
 
    received=false;
    // Send a SIP OPTIONS message to the server:
    std::string SIP_msg="OPTIONS sip:carol@chicago.com SIP/2.0\r\nVia: SIP/2.0/WS df7jal23ls0d.invalid;rport;branch=z9hG4bKhjhs8ass877\r\nMax-Forwards: 70\r\nTo: <sip:carol@chicago.com>\r\nFrom: Alice <sip:alice@atlanta.com>;tag=1928301774\r\nCall-ID: a84b4c76e66710\r\nCSeq: 63104 OPTIONS\r\nContact: <sip:alice@pc33.atlanta.com>\r\nAccept: application/sdp\r\nContent-Length: 0\r\n\r\n";
    sip_client.send(hdl, SIP_msg.c_str(), websocketpp::frame::opcode::text);
}
 
void on_message(client* c, websocketpp::connection_hdl hdl, message_ptr msg) {
    client::connection_ptr con = sip_client.get_con_from_hdl(hdl);
 
    std::cout << "Received a reply:" << std::endl;
    fwrite(msg->get_payload().c_str(), msg->get_payload().size(), 1, stdout);
    received=true;
}
 
int main(int argc, char* argv[]) {
 
    std::string uri = "ws://localhost:9001";
 
    if (argc == 2) {
        uri = argv[1];
    }
 
    try {
        // We expect there to be a lot of errors, so suppress them
        sip_client.clear_access_channels(websocketpp::log::alevel::all);
        sip_client.clear_error_channels(websocketpp::log::elevel::all);
 
        // Initialize ASIO
        sip_client.init_asio();
 
        // Register our handlers
        sip_client.set_open_handler(bind(&on_open,&sip_client,::_1));
        sip_client.set_message_handler(bind(&on_message,&sip_client,::_1,::_2));
 
        websocketpp::lib::error_code ec;
        client::connection_ptr con = sip_client.get_connection(uri, ec);
 
        // Specify the SIP subprotocol:
        con->add_subprotocol("sip");
 
        sip_client.connect(con);
 
        // Start the ASIO io_service run loop
        sip_client.run();
 
        while(!received) {
            boost::this_thread::sleep(boost::posix_time::milliseconds(100));
        }
 
        std::cout << "done" << std::endl;
 
    } catch (websocketpp::exception const & e) {
        std::cout << e.what() << std::endl;
    }
}