src/modules/m_spanningtree/resolvers.h

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2009 InspIRCd Development Team
   6  * See: http://wiki.inspircd.org/Credits
   7  *
   8  * This program is free but copyrighted software; see
   9  *            the file COPYING for details.
  10  *
  11  * ---------------------------------------------------
  12  */
  13
  14 #ifndef __RESOLVERS__H__
  15 #define __RESOLVERS__H__
  16
  17 #include "socket.h"
  18 #include "inspircd.h"
  19 #include "xline.h"
  20 #include "../transport.h"
  21
  22 #include "utils.h"
  23 #include "link.h"
  24
  25 /** Handle resolving of server IPs for the cache
  26  */
  27 class SecurityIPResolver : public Resolver
  28 {
  29  private:
  30         reference<Link> MyLink;
  31         SpanningTreeUtilities* Utils;
  32         Module* mine;
  33         std::string host;
  34         QueryType query;
  35  public:
  36         SecurityIPResolver(Module* me, SpanningTreeUtilities* U, const std::string &hostname, Link* x, bool &cached, QueryType qt)
  37                 : Resolver(hostname, qt, cached, me), MyLink(x), Utils(U), mine(me), host(hostname), query(qt)
  38         {
  39         }
  40
  41         void OnLookupComplete(const std::string &result, unsigned int ttl, bool cached)
  42         {
  43                 Utils->ValidIPs.push_back(result);
  44         }
  45
  46         void OnError(ResolverError e, const std::string &errormessage)
  47         {
  48                 if (query == DNS_QUERY_AAAA)
  49                 {
  50                         bool cached;
  51                         SecurityIPResolver* res = new SecurityIPResolver(mine, Utils, host, MyLink, cached, DNS_QUERY_A);
  52                         ServerInstance->AddResolver(res, cached);
  53                         return;
  54                 }
  55                 ServerInstance->Logs->Log("m_spanningtree",DEFAULT,"Could not resolve IP associated with Link '%s': %s",
  56                         MyLink->Name.c_str(),errormessage.c_str());
  57         }
  58 };
  59
  60 /** This class is used to resolve server hostnames during /connect and autoconnect.
  61  * As of 1.1, the resolver system is seperated out from BufferedSocket, so we must do this
  62  * resolver step first ourselves if we need it. This is totally nonblocking, and will
  63  * callback to OnLookupComplete or OnError when completed. Once it has completed we
  64  * will have an IP address which we can then use to continue our connection.
  65  */
  66 class ServernameResolver : public Resolver
  67 {
  68  private:
  69         SpanningTreeUtilities* Utils;
  70         QueryType query;
  71         std::string host;
  72         Module* mine;
  73         reference<Link> MyLink;
  74         reference<Autoconnect> myautoconnect;
  75  public:
  76         ServernameResolver(Module* me, SpanningTreeUtilities* Util, const std::string &hostname, Link* x, bool &cached, QueryType qt, Autoconnect* myac);
  77         void OnLookupComplete(const std::string &result, unsigned int ttl, bool cached);
  78         void OnError(ResolverError e, const std::string &errormessage);
  79 };
  80
  81 #endif