2 * InspIRCd -- Internet Relay Chat Daemon
4 * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
5 * Copyright (C) 2007 Craig Edwards <craigedwards@brainbox.cc>
7 * This file is part of InspIRCd. InspIRCd is free software: you can
8 * redistribute it and/or modify it under the terms of the GNU General Public
9 * License as published by the Free Software Foundation, version 2.
11 * This program is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
13 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
25 #include "resolvers.h"
28 #include "treeserver.h"
30 #include "treesocket.h"
32 /* $ModDep: m_spanningtree/resolvers.h m_spanningtree/main.h m_spanningtree/utils.h m_spanningtree/treeserver.h m_spanningtree/link.h m_spanningtree/treesocket.h */
34 /** This class is used to resolve server hostnames during /connect and autoconnect.
35 * As of 1.1, the resolver system is seperated out from BufferedSocket, so we must do this
36 * resolver step first ourselves if we need it. This is totally nonblocking, and will
37 * callback to OnLookupComplete or OnError when completed. Once it has completed we
38 * will have an IP address which we can then use to continue our connection.
40 ServernameResolver::ServernameResolver(SpanningTreeUtilities* Util, const std::string &hostname, Link* x, bool &cached, QueryType qt, Autoconnect* myac)
41 : Resolver(hostname, qt, cached, Util->Creator), Utils(Util), query(qt), host(hostname), MyLink(x), myautoconnect(myac)
45 void ServernameResolver::OnLookupComplete(const std::string &result, unsigned int ttl, bool cached)
47 /* Initiate the connection, now that we have an IP to use.
48 * Passing a hostname directly to BufferedSocket causes it to
49 * just bail and set its FD to -1.
51 TreeServer* CheckDupe = Utils->FindServer(MyLink->Name.c_str());
52 if (!CheckDupe) /* Check that nobody tried to connect it successfully while we were resolving */
54 TreeSocket* newsocket = new TreeSocket(Utils, MyLink, myautoconnect, result);
55 if (newsocket->GetFd() > -1)
61 /* Something barfed, show the opers */
62 ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",
63 MyLink->Name.c_str(), newsocket->getError().c_str());
64 ServerInstance->GlobalCulls.AddItem(newsocket);
69 void ServernameResolver::OnError(ResolverError e, const std::string &errormessage)
72 if (query == DNS_QUERY_AAAA)
75 ServernameResolver* snr = new ServernameResolver(Utils, host, MyLink, cached, DNS_QUERY_A, myautoconnect);
76 ServerInstance->AddResolver(snr, cached);
79 ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: Unable to resolve hostname - %s", MyLink->Name.c_str(), errormessage.c_str() );
80 Utils->Creator->ConnectServer(myautoconnect, false);
83 SecurityIPResolver::SecurityIPResolver(Module* me, SpanningTreeUtilities* U, const std::string &hostname, Link* x, bool &cached, QueryType qt)
84 : Resolver(hostname, qt, cached, me), MyLink(x), Utils(U), mine(me), host(hostname), query(qt)
88 void SecurityIPResolver::OnLookupComplete(const std::string &result, unsigned int ttl, bool cached)
90 for (std::vector<reference<Link> >::iterator i = Utils->LinkBlocks.begin(); i != Utils->LinkBlocks.end(); ++i)
93 if (L->IPAddr == host)
95 Utils->ValidIPs.push_back(result);
101 void SecurityIPResolver::OnError(ResolverError e, const std::string &errormessage)
103 if (query == DNS_QUERY_AAAA)
106 SecurityIPResolver* res = new SecurityIPResolver(mine, Utils, host, MyLink, cached, DNS_QUERY_A);
107 ServerInstance->AddResolver(res, cached);
110 ServerInstance->Logs->Log("m_spanningtree",LOG_DEFAULT,"Could not resolve IP associated with Link '%s': %s",
111 MyLink->Name.c_str(),errormessage.c_str());