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86 lines
2.2 KiB
C++
86 lines
2.2 KiB
C++
#ifndef CHAT_HPP
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#define CHAT_HPP
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// com.zaphoyd.websocketpp.chat protocol
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//
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// client messages:
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// msg [UTF8 text]
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//
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// server messages:
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// {"type":"msg","sender":"<sender>","value":"<msg>" }
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// {"type":"participants","value":[<participant>,...]}
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#include <boost/shared_ptr.hpp>
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#include <websocketpp/websocket_connection_handler.hpp>
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#include <set>
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#include <map>
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#include <string>
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#include <vector>
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namespace websocketchat {
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class chat_handler : public websocketpp::connection_handler {
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public:
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chat_handler() {}
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virtual ~chat_handler() {}
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bool validate(websocketpp::session_ptr client);
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// add new connection to the lobby
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void connect(session_ptr client) {
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std::cout << "client " << client << " joined the lobby." << std::endl;
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m_connections.insert(client);
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// send user list to all clients
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// send signon message from server to all other clients.
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}
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// someone disconnected from the lobby, remove them
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void disconnect(websocketpp::session_ptr client,const std::string &reason) {
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std::set<session_ptr>::iterator it = m_connections.find(client);
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if (it == m_connections.end()) {
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// this client has already disconnected, we can ignore this.
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// this happens during certain types of disconnect where there is a
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// deliberate "soft" disconnection preceeding the "hard" socket read
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// fail or disconnect ack message.
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return;
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}
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std::cout << "client " << client << " left the lobby." << std::endl;
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m_connections.erase(it);
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// send signoff message from server to all clients
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// send user list to all remaining clients
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}
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void message(websocketpp::session_ptr client,const std::string &msg) {
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std::cout << "message from client " << client << ": " << msg << std::endl;
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// create JSON message to send based on msg
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for (std::set<session_ptr>::iterator it = m_connections.begin();
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it != m_connections.end(); it++) {
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(*it)->send(msg);
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}
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}
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// lobby will ignore binary messages
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void message(websocketpp::session_ptr client,
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const std::vector<unsigned char> &data) {}
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private:
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std::string serialize_state();
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// list of outstanding connections
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std::set<session_ptr> m_connections;
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};
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typedef boost::shared_ptr<chat_handler> chat_handler_ptr;
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}
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#endif // CHAT_HPP
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