source/http/client.h

   1 #ifndef MSP_HTTP_CLIENT_H_
   2 #define MSP_HTTP_CLIENT_H_
   3
   4 #include <memory>
   5 #include <string>
   6 #include <sigc++/signal.h>
   7 #include <msp/io/eventdispatcher.h>
   8 #include <msp/net/mspnet_api.h>
   9 #include <msp/net/resolve.h>
  10 #include <msp/net/streamsocket.h>
  11
  12 namespace Msp {
  13 namespace Http {
  14
  15 class Request;
  16 class Response;
  17
  18 class MSPNET_API Client
  19 {
  20 public:
  21         sigc::signal<void, const Response &> signal_response_complete;
  22         sigc::signal<void, const std::exception &> signal_socket_error;
  23
  24 private:
  25         struct ResolveListener: public sigc::trackable
  26         {
  27                 Client &client;
  28
  29                 ResolveListener(Client &);
  30
  31                 void address_resolved(unsigned, const Net::SockAddr &);
  32                 void resolve_failed(unsigned, const std::exception &);
  33         };
  34
  35         std::unique_ptr<Net::StreamSocket> sock;
  36         IO::EventDispatcher *event_disp = nullptr;
  37         Net::Resolver *resolver = nullptr;
  38         std::unique_ptr<ResolveListener> resolve_listener;
  39         unsigned resolve_tag = 0;
  40         std::string user_agent = "libmspnet/1.0";
  41         std::unique_ptr<Request> request;
  42         std::unique_ptr<Response> response;
  43         std::string in_buf;
  44
  45 public:
  46         ~Client();
  47
  48         void use_event_dispatcher(IO::EventDispatcher *);
  49         void use_resolver(Net::Resolver *);
  50         void set_user_agent(const std::string &);
  51         void start_request(const Request &);
  52         const Response *get_url(const std::string &);
  53         void tick();
  54         void wait_response();
  55         void abort();
  56         const Request *get_request() const { return request.get(); }
  57         const Response *get_response() const { return response.get(); }
  58 private:
  59         void address_resolved(unsigned, const Net::SockAddr &);
  60         void resolve_failed(unsigned, const std::exception &);
  61         void connect_finished(const std::exception *);
  62         void data_available();
  63 };
  64
  65 } // namespace Http
  66 } // namespace Msp
  67
  68 #endif