]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/modules/m_spanningtree/uid.cpp
Change the syntax of FOREACH macros to be less dumb.
[user/henk/code/inspircd.git] / src / modules / m_spanningtree / uid.cpp
index 72fd66f95d8d03e268083945490a877ee366eb58..dd4591a9ba71185f8473e662767a08e90fdac3af 100644 (file)
@@ -1,83 +1,77 @@
-/*       +------------------------------------+
- *       | 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) 2010 Daniel De Graaf <danieldg@inspircd.org>
+ *   Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
+ *   Copyright (C) 2008 Craig Edwards <craigedwards@brainbox.cc>
  *
- * 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/>.
  */
 
-#include "inspircd.h"
 
-#include "m_spanningtree/main.h"
-#include "m_spanningtree/utils.h"
-#include "m_spanningtree/treeserver.h"
-#include "m_spanningtree/link.h"
-#include "m_spanningtree/treesocket.h"
-#include "m_spanningtree/resolvers.h"
-#include "m_spanningtree/handshaketimer.h"
+#include "inspircd.h"
+#include "commands.h"
 
-/* $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 m_hash.h m_spanningtree/handshaketimer.h */
+#include "utils.h"
+#include "treeserver.h"
 
-bool TreeSocket::ParseUID(const std::string &source, std::deque<std::string> &params)
+CmdResult CommandUID::Handle(const parameterlist &params, User* serversrc)
 {
+       SpanningTreeUtilities* Utils = ((ModuleSpanningTree*)(Module*)creator)->Utils;
        /** Do we have enough parameters:
         *      0    1    2    3    4    5        6        7     8        9       (n-1)
         * UID uuid age nick host dhost ident ip.string signon +modes (modepara) :gecos
         */
-       if (params.size() < 10)
-       {
-               this->SendError("Invalid client introduction (wanted 10 or more parameters, got " + (params.empty() ? "0" : ConvToStr(params.size())) + "!)");
-               return false;
-       }
-
        time_t age_t = ConvToInt(params[1]);
        time_t signon = ConvToInt(params[7]);
        std::string empty;
+       const std::string& modestr = params[8];
 
-       TreeServer* remoteserver = Utils->FindServer(source);
+       TreeServer* remoteserver = Utils->FindServer(serversrc->server);
 
        if (!remoteserver)
-       {
-               this->SendError("Invalid client introduction (Unknown server "+source+")");
-               return false;
-       }
+               return CMD_INVALID;
+       /* Is this a valid UID, and not misrouted? */
+       if (params[0].length() != 9 || params[0].substr(0,3) != serversrc->uuid)
+               return CMD_INVALID;
        /* Check parameters for validity before introducing the client, discovered by dmb */
-       else if (!age_t)
-       {
-               this->SendError("Invalid client introduction (Invalid TS?)");
-               return false;
-       }
-       else if (!signon)
-       {
-               this->SendError("Invalid client introduction (Invalid signon?)");
-               return false;
-       }
-       else if (params[8][0] != '+')
-       {
-               this->SendError("Invalid client introduction (Malformed MODE sequence?)");
-               return false;
-       }
+       if (!age_t)
+               return CMD_INVALID;
+       if (!signon)
+               return CMD_INVALID;
+       if (modestr[0] != '+')
+               return CMD_INVALID;
+       TreeSocket* sock = remoteserver->GetRoute()->GetSocket();
 
        /* check for collision */
-       user_hash::iterator iter = this->ServerInstance->Users->clientlist->find(params[2]);
+       user_hash::iterator iter = ServerInstance->Users->clientlist->find(params[2]);
 
-       if (iter != this->ServerInstance->Users->clientlist->end())
+       if (iter != ServerInstance->Users->clientlist->end())
        {
                /*
                 * Nick collision.
                 */
-               int collide = this->DoCollision(iter->second, age_t, params[5], params[8], params[0]);
-               ServerInstance->Logs->Log("m_spanningtree",DEBUG,"*** Collision on %s, collide=%d", params[2].c_str(), collide);
+               int collide = sock->DoCollision(iter->second, age_t, params[5], params[6], params[0]);
+               ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "*** Collision on %s, collide=%d", params[2].c_str(), collide);
 
                if (collide != 1)
                {
-                       /* remote client changed, make sure we change their nick for the hash too */
-                       params[2] = params[0];
+                       /* remote client lost, make sure we change their nick for the hash too
+                        *
+                        * This alters the line that will be sent to other servers, which
+                        * commands normally shouldn't do; hence the required const_cast.
+                        */
+                       const_cast<parameterlist&>(params)[2] = params[0];
                }
        }
 
@@ -87,99 +81,99 @@ bool TreeSocket::ParseUID(const std::string &source, std::deque<std::string> &pa
        User* _new = NULL;
        try
        {
-               _new = new User(this->ServerInstance, params[0]);
+               _new = new RemoteUser(params[0], remoteserver->GetName());
        }
        catch (...)
        {
-               this->SendError("Protocol violation - Duplicate UUID '" + params[0] + "' on introduction of new user");
-               return false;
+               ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "Duplicate UUID %s in client introduction", params[0].c_str());
+               return CMD_INVALID;
        }
-       (*(this->ServerInstance->Users->clientlist))[params[2]] = _new;
-       _new->SetFd(FD_MAGIC_NUMBER);
-       _new->nick.assign(params[2], 0, MAXBUF);
-       _new->host.assign(params[3], 0, 64);
-       _new->dhost.assign(params[4], 0, 64);
-       _new->server = this->ServerInstance->FindServerNamePtr(remoteserver->GetName().c_str());
-       _new->ident.assign(params[5], 0, MAXBUF);
-       _new->fullname.assign(params[params.size() - 1], 0, MAXBUF);
+       (*(ServerInstance->Users->clientlist))[params[2]] = _new;
+       _new->nick = params[2];
+       _new->host = params[3];
+       _new->dhost = params[4];
+       _new->ident = params[5];
+       _new->fullname = params[params.size() - 1];
        _new->registered = REG_ALL;
        _new->signon = signon;
        _new->age = age_t;
 
-       /* we need to remove the + from the modestring, so we can do our stuff */
-       std::string::size_type pos_after_plus = params[8].find_first_not_of('+');
-       if (pos_after_plus != std::string::npos)
-       params[8] = params[8].substr(pos_after_plus);
-
        unsigned int paramptr = 9;
-       for (std::string::iterator v = params[8].begin(); v != params[8].end(); v++)
+
+       for (std::string::const_iterator v = modestr.begin(); v != modestr.end(); ++v)
        {
+               // Accept more '+' chars, for now
                if (*v == '+')
                        continue;
 
-               /* For each mode thats set, increase counter */
+               /* For each mode thats set, find the mode handler and set it on the new user */
                ModeHandler* mh = ServerInstance->Modes->FindMode(*v, MODETYPE_USER);
-
-               if (mh)
+               if (!mh)
                {
-                       if (mh->GetNumParams(true))
-                       {
-                               /* IMPORTANT NOTE:
-                                * All modes are assumed to succeed here as they are being set by a remote server.
-                                * Modes CANNOT FAIL here. If they DO fail, then the failure is ignored. This is important
-                                * to note as all but one modules currently cannot ever fail in this situation, except for
-                                * m_servprotect which specifically works this way to prevent the mode being set ANYWHERE
-                                * but here, at client introduction. You may safely assume this behaviour is standard and
-                                * will not change in future versions if you want to make use of this protective behaviour
-                                * yourself.
-                                */
-                               if (paramptr < params.size() - 1)
-                                       mh->OnModeChange(_new, _new, NULL, params[paramptr++], true);
-                               else
-                               {
-                                       this->SendError(std::string("Broken UID command, expected a parameter for user mode '")+(*v)+"' but there aren't enough parameters in the command!");
-                                       return false;
-                               }
-                       }
-                       else
-                               mh->OnModeChange(_new, _new, NULL, empty, true);
-                       _new->SetMode(*v, true);
-                       mh->ChangeCount(1);
+                       ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "Unrecognised mode '%c' for a user in UID, dropping link", *v);
+                       return CMD_INVALID;
                }
-               else
+
+               if (mh->GetNumParams(true))
                {
-                       this->SendError(std::string("Warning: Broken UID command, unknown user mode '")+(*v)+"' in the mode string! (mismatched module?)");
-                       return false;
+                       if (paramptr >= params.size() - 1)
+                               return CMD_INVALID;
+                       std::string mp = params[paramptr++];
+                       /* IMPORTANT NOTE:
+                        * All modes are assumed to succeed here as they are being set by a remote server.
+                        * Modes CANNOT FAIL here. If they DO fail, then the failure is ignored. This is important
+                        * to note as all but one modules currently cannot ever fail in this situation, except for
+                        * m_servprotect which specifically works this way to prevent the mode being set ANYWHERE
+                        * but here, at client introduction. You may safely assume this behaviour is standard and
+                        * will not change in future versions if you want to make use of this protective behaviour
+                        * yourself.
+                        */
+                       mh->OnModeChange(_new, _new, NULL, mp, true);
                }
+               else
+                       mh->OnModeChange(_new, _new, NULL, empty, true);
+               _new->SetMode(mh, true);
        }
 
-       /* now we've done with modes processing, put the + back for remote servers */
-       if (params[8][0] != '+')
-               params[8] = "+" + params[8];
-
-#ifdef SUPPORT_IP6LINKS
-       if (params[6].find_first_of(":") != std::string::npos)
-               _new->SetSockAddr(AF_INET6, params[6].c_str(), 0);
-       else
-#endif
-               _new->SetSockAddr(AF_INET, params[6].c_str(), 0);
+       _new->SetClientIP(params[6].c_str());
 
        ServerInstance->Users->AddGlobalClone(_new);
+       remoteserver->UserCount++;
 
        bool dosend = true;
 
-       if ((this->Utils->quiet_bursts && remoteserver->bursting) || this->ServerInstance->SilentULine(_new->server))
+       if ((Utils->quiet_bursts && remoteserver->bursting) || ServerInstance->SilentULine(_new->server))
                dosend = false;
 
        if (dosend)
-               this->ServerInstance->SNO->WriteToSnoMask('C',"Client connecting at %s: %s!%s@%s [%s] [%s]", _new->server, _new->nick.c_str(), _new->ident.c_str(), _new->host.c_str(), _new->GetIPString(), _new->fullname.c_str());
+               ServerInstance->SNO->WriteToSnoMask('C',"Client connecting at %s: %s (%s) [%s]", _new->server.c_str(), _new->GetFullRealHost().c_str(), _new->GetIPString().c_str(), _new->fullname.c_str());
+
+       FOREACH_MOD(OnPostConnect, (_new));
 
-       params[params.size() - 1] = ":" + params[params.size() - 1];
-       Utils->DoOneToAllButSender(source, "UID", params, source);
+       return CMD_SUCCESS;
+}
 
-       ServerInstance->PI->Introduce(_new);
-       FOREACH_MOD_I(ServerInstance,I_OnPostConnect,OnPostConnect(_new));
+CmdResult CommandFHost::Handle(const parameterlist &params, User* src)
+{
+       if (IS_SERVER(src))
+               return CMD_FAILURE;
+       src->ChangeDisplayedHost(params[0].c_str());
+       return CMD_SUCCESS;
+}
 
-       return true;
+CmdResult CommandFIdent::Handle(const parameterlist &params, User* src)
+{
+       if (IS_SERVER(src))
+               return CMD_FAILURE;
+       src->ChangeIdent(params[0].c_str());
+       return CMD_SUCCESS;
+}
+
+CmdResult CommandFName::Handle(const parameterlist &params, User* src)
+{
+       if (IS_SERVER(src))
+               return CMD_FAILURE;
+       src->ChangeName(params[0].c_str());
+       return CMD_SUCCESS;
 }