pdns/ws-recursor.hh

   1 /*
   2  * This file is part of PowerDNS or dnsdist.
   3  * Copyright -- PowerDNS.COM B.V. and its contributors
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * In addition, for the avoidance of any doubt, permission is granted to
  10  * link this program with OpenSSL and to (re)distribute the binaries
  11  * produced as the result of such linking.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  21  */
  22 #ifndef PDNS_WSRECURSOR_HH
  23 #define PDNS_WSRECURSOR_HH
  24
  25 #include <boost/utility.hpp>
  26 #include "namespaces.hh"
  27 #include "mplexer.hh"
  28 #include "webserver.hh"
  29
  30 class HttpRequest;
  31 class HttpResponse;
  32
  33 class AsyncServer : public Server {
  34 public:
  35   AsyncServer(const string &localaddress, int port) : Server(localaddress, port) { };
  36
  37   friend void AsyncServerNewConnectionMT(void *p);
  38
  39   typedef boost::function< void(std::shared_ptr<Socket>) > newconnectioncb_t;
  40   void asyncWaitForConnections(FDMultiplexer* fdm, const newconnectioncb_t& callback);
  41
  42 private:
  43   void newConnection();
  44
  45   newconnectioncb_t d_asyncNewConnectionCallback;
  46 };
  47
  48 class AsyncWebServer : public WebServer
  49 {
  50 public:
  51   AsyncWebServer(FDMultiplexer* fdm, const string &listenaddress, int port) :
  52     WebServer(listenaddress, port), d_fdm(fdm) { };
  53   void go();
  54
  55 private:
  56   FDMultiplexer* d_fdm;
  57   void serveConnection(std::shared_ptr<Socket> socket) const;
  58
  59 protected:
  60   virtual std::shared_ptr<Server> createServer() override {
  61     return std::make_shared<AsyncServer>(d_listenaddress, d_port);
  62   };
  63 };
  64
  65 class RecursorWebServer : public boost::noncopyable
  66 {
  67 public:
  68   explicit RecursorWebServer(FDMultiplexer* fdm);
  69   void jsonstat(HttpRequest* req, HttpResponse *resp);
  70
  71 private:
  72   AsyncWebServer* d_ws;
  73 };
  74
  75 #endif /* PDNS_WSRECURSOR_HH */