]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/user_resolver.cpp
Fix mistakenly using Clang instead of GCC on older FreeBSD versions.
[user/henk/code/inspircd.git] / src / user_resolver.cpp
index 0218f32690bcf78803d55bc3403e2783b82b398e..f18fc9a0385a29604ec5586bd3d276e7a8de2d8f 100644 (file)
@@ -1,58 +1,63 @@
-/*       +------------------------------------+
- *       | Inspire Internet Relay Chat Daemon |
- *       +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
  *
- *  InspIRCd: (C) 2002-2009 InspIRCd Development Team
- * See: http://wiki.inspircd.org/Credits
+ *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ *   Copyright (C) 2007 Robin Burchell <robin+git@viroteck.net>
  *
- * This program is free but copyrighted software; see
- *            the file COPYING for details.
+ * This file is part of InspIRCd.  InspIRCd is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation, version 2.
  *
- * ---------------------------------------------------
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-/* $Core */
 
 #include "inspircd.h"
-UserResolver::UserResolver(InspIRCd* Instance, User* user, std::string to_resolve, QueryType qt, bool &cache) :
-       Resolver(Instance, to_resolve, qt, cache), bound_user(user)
+UserResolver::UserResolver(LocalUser* user, std::string to_resolve, QueryType qt, bool &cache) :
+       Resolver(to_resolve, qt, cache, NULL), uuid(user->uuid)
 {
        this->fwd = (qt == DNS_QUERY_A || qt == DNS_QUERY_AAAA);
-       this->bound_fd = user->GetFd();
 }
 
-void UserResolver::OnLookupComplete(const std::string &result, unsigned int ttl, bool cached, int resultnum)
+void UserResolver::OnLookupComplete(const std::string &result, unsigned int ttl, bool cached)
 {
-       /* We are only interested in the first matching result */
-       if (resultnum)
+       UserResolver *res_forward; // for forward-resolution
+       LocalUser* bound_user = (LocalUser*)ServerInstance->FindUUID(uuid);
+       if (!bound_user)
+       {
+               ServerInstance->Logs->Log("RESOLVER", DEBUG, "Resolution finished for user '%s' who is gone", uuid.c_str());
                return;
+       }
 
-       UserResolver *res_forward; // for forward-resolution
+       ServerInstance->Logs->Log("RESOLVER", DEBUG, "DNS result for %s: '%s' -> '%s'", uuid.c_str(), input.c_str(), result.c_str());
 
-       if ((!this->fwd) && (ServerInstance->SE->GetRef(this->bound_fd) == this->bound_user))
+       if (!fwd)
        {
-               this->bound_user->stored_host = result;
+               // first half of resolution is done. We now need to verify that the host matches.
+               bound_user->stored_host = result;
                try
                {
                        /* Check we didnt time out */
-                       if (this->bound_user->registered != REG_ALL)
+                       if (bound_user->registered != REG_ALL)
                        {
                                bool lcached = false;
-#ifdef IPV6
-                               if (this->bound_user->GetProtocolFamily() == AF_INET6)
+                               if (bound_user->client_sa.sa.sa_family == AF_INET6)
                                {
-                                       /* IPV6 forward lookup (with possibility of 4in6) */
-                                       const char* ip = this->bound_user->GetIPString();
-                                       res_forward = new UserResolver(this->ServerInstance, this->bound_user, result, (!strncmp(ip, "0::ffff:", 8) ? DNS_QUERY_A : DNS_QUERY_AAAA), lcached);
+                                       /* IPV6 forward lookup */
+                                       res_forward = new UserResolver(bound_user, result, DNS_QUERY_AAAA, lcached);
                                }
                                else
-                                       /* IPV4 lookup (mixed protocol mode) */
-#endif
                                {
-                                       /* IPV4 lookup (ipv4 only mode) */
-                                       res_forward = new UserResolver(this->ServerInstance, this->bound_user, result, DNS_QUERY_A, lcached);
+                                       /* IPV4 lookup */
+                                       res_forward = new UserResolver(bound_user, result, DNS_QUERY_A, lcached);
                                }
-                               this->ServerInstance->AddResolver(res_forward, lcached);
+                               ServerInstance->AddResolver(res_forward, lcached);
                        }
                }
                catch (CoreException& e)
@@ -60,83 +65,80 @@ void UserResolver::OnLookupComplete(const std::string &result, unsigned int ttl,
                        ServerInstance->Logs->Log("RESOLVER", DEBUG,"Error in resolver: %s",e.GetReason());
                }
        }
-       else if ((this->fwd) && (ServerInstance->SE->GetRef(this->bound_fd) == this->bound_user))
+       else
        {
                /* Both lookups completed */
 
-               sockaddr* user_ip = this->bound_user->ip;
+               irc::sockets::sockaddrs* user_ip = &bound_user->client_sa;
                bool rev_match = false;
-#ifdef IPV6
-               if (user_ip->sa_family == AF_INET6)
+               if (user_ip->sa.sa_family == AF_INET6)
                {
                        struct in6_addr res_bin;
                        if (inet_pton(AF_INET6, result.c_str(), &res_bin))
                        {
-                               sockaddr_in6* user_ip6 = reinterpret_cast<sockaddr_in6*>(user_ip);
-                               rev_match = !memcmp(&user_ip6->sin6_addr, &res_bin, sizeof(res_bin));
+                               rev_match = !memcmp(&user_ip->in6.sin6_addr, &res_bin, sizeof(res_bin));
                        }
                }
                else
-#endif
                {
                        struct in_addr res_bin;
                        if (inet_pton(AF_INET, result.c_str(), &res_bin))
                        {
-                               sockaddr_in* user_ip4 = reinterpret_cast<sockaddr_in*>(user_ip);
-                               rev_match = !memcmp(&user_ip4->sin_addr, &res_bin, sizeof(res_bin));
+                               rev_match = !memcmp(&user_ip->in4.sin_addr, &res_bin, sizeof(res_bin));
                        }
                }
                
                if (rev_match)
                {
-                       std::string hostname = this->bound_user->stored_host;
+                       std::string hostname = bound_user->stored_host;
                        if (hostname.length() < 65)
                        {
                                /* Check we didnt time out */
-                               if ((this->bound_user->registered != REG_ALL) && (!this->bound_user->dns_done))
+                               if ((bound_user->registered != REG_ALL) && (!bound_user->dns_done))
                                {
                                        /* Hostnames starting with : are not a good thing (tm) */
                                        if (hostname[0] == ':')
                                                hostname.insert(0, "0");
 
-                                       this->bound_user->WriteServ("NOTICE Auth :*** Found your hostname (%s)%s", hostname.c_str(), (cached ? " -- cached" : ""));
-                                       this->bound_user->dns_done = true;
-                                       this->bound_user->dhost.assign(hostname, 0, 64);
-                                       this->bound_user->host.assign(hostname, 0, 64);
+                                       bound_user->WriteServ("NOTICE Auth :*** Found your hostname (%s)%s", hostname.c_str(), (cached ? " -- cached" : ""));
+                                       bound_user->dns_done = true;
+                                       bound_user->dhost.assign(hostname, 0, 64);
+                                       bound_user->host.assign(hostname, 0, 64);
                                        /* Invalidate cache */
-                                       this->bound_user->InvalidateCache();
+                                       bound_user->InvalidateCache();
                                }
                        }
                        else
                        {
-                               if (!this->bound_user->dns_done)
+                               if (!bound_user->dns_done)
                                {
-                                       this->bound_user->WriteServ("NOTICE Auth :*** Your hostname is longer than the maximum of 64 characters, using your IP address (%s) instead.", this->bound_user->GetIPString());
-                                       this->bound_user->dns_done = true;
+                                       bound_user->WriteServ("NOTICE Auth :*** Your hostname is longer than the maximum of 64 characters, using your IP address (%s) instead.", bound_user->GetIPString());
+                                       bound_user->dns_done = true;
                                }
                        }
                }
                else
                {
-                       if (!this->bound_user->dns_done)
+                       if (!bound_user->dns_done)
                        {
-                               this->bound_user->WriteServ("NOTICE Auth :*** Your hostname does not match up with your IP address. Sorry, using your IP address (%s) instead.", this->bound_user->GetIPString());
-                               this->bound_user->dns_done = true;
+                               bound_user->WriteServ("NOTICE Auth :*** Your hostname does not match up with your IP address. Sorry, using your IP address (%s) instead.", bound_user->GetIPString());
+                               bound_user->dns_done = true;
                        }
                }
 
                // Save some memory by freeing this up; it's never used again in the user's lifetime.
-               this->bound_user->stored_host.resize(0);
+               bound_user->stored_host.resize(0);
        }
 }
 
 void UserResolver::OnError(ResolverError e, const std::string &errormessage)
 {
-       if (ServerInstance->SE->GetRef(this->bound_fd) == this->bound_user)
+       LocalUser* bound_user = (LocalUser*)ServerInstance->FindUUID(uuid);
+       if (bound_user)
        {
-               this->bound_user->WriteServ("NOTICE Auth :*** Could not resolve your hostname: %s; using your IP address (%s) instead.", errormessage.c_str(), this->bound_user->GetIPString());
-               this->bound_user->dns_done = true;
-               this->bound_user->stored_host.resize(0);
+               bound_user->WriteServ("NOTICE Auth :*** Could not resolve your hostname: %s; using your IP address (%s) instead.", errormessage.c_str(), bound_user->GetIPString());
+               bound_user->dns_done = true;
+               bound_user->stored_host.resize(0);
                ServerInstance->stats->statsDnsBad++;
        }
 }