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