]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/modules/m_spanningtree/capab.cpp
Add support for blocking tag messages with the deaf mode.
[user/henk/code/inspircd.git] / src / modules / m_spanningtree / capab.cpp
index 342945c3aa921c3d330e5e243264380d7c0e2b03..9894dd413d55524a03ec76734709f35c2a9c0174 100644 (file)
@@ -1,9 +1,15 @@
 /*
  * InspIRCd -- Internet Relay Chat Daemon
  *
+ *   Copyright (C) 2019 linuxdaemon <linuxdaemon.irc@gmail.com>
+ *   Copyright (C) 2014, 2017-2020 Sadie Powell <sadie@witchery.services>
+ *   Copyright (C) 2014 Daniel Vassdal <shutter@canternet.org>
+ *   Copyright (C) 2012-2016 Attila Molnar <attilamolnar@hush.com>
+ *   Copyright (C) 2012 Robby <robby@chatbelgie.be>
  *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ *   Copyright (C) 2008, 2010 Craig Edwards <brain@inspircd.org>
+ *   Copyright (C) 2008 Thomas Stagner <aquanight@inspircd.org>
  *   Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
- *   Copyright (C) 2008 Craig Edwards <craigedwards@brainbox.cc>
  *
  * 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
@@ -47,11 +53,11 @@ std::string TreeSocket::MyModules(int filter)
                Module* const mod = i->second;
                // 3.0 advertises its settings for the benefit of services
                // 2.0 would bork on this
-               if (proto_version < 1205 && i->second->ModuleSourceFile == "m_kicknorejoin.so")
+               if (proto_version < PROTO_INSPIRCD_30 && mod->ModuleSourceFile == "m_kicknorejoin.so")
                        continue;
 
                bool do_compat_include = false;
-               if (proto_version < 1205)
+               if (proto_version < PROTO_INSPIRCD_30)
                {
                        for (size_t j = 0; j < sizeof(compatmods)/sizeof(compatmods[0]); j++)
                        {
@@ -63,12 +69,11 @@ std::string TreeSocket::MyModules(int filter)
                        }
                }
 
-               Version v = i->second->GetVersion();
+               Version v = mod->GetVersion();
                if ((!do_compat_include) && (!(v.Flags & filter)))
                        continue;
 
-               if (i != modlist.begin())
-                       capabilities.push_back(' ');
+               capabilities.push_back(' ');
                capabilities.append(i->first);
                if (!v.link_data.empty())
                {
@@ -76,19 +81,40 @@ std::string TreeSocket::MyModules(int filter)
                        capabilities.append(v.link_data);
                }
        }
-       return capabilities;
+
+       // If we are linked in a 2.0 server and have an ascii casemapping
+       // advertise it as m_ascii.so from inspircd-extras
+       if ((filter & VF_COMMON) && ServerInstance->Config->CaseMapping == "ascii" && proto_version == PROTO_INSPIRCD_20)
+               capabilities.append(" m_ascii.so");
+
+       if (capabilities.empty())
+               return capabilities;
+
+       return capabilities.substr(1);
 }
 
-static std::string BuildModeList(ModeType type)
+std::string TreeSocket::BuildModeList(ModeType mtype)
 {
        std::vector<std::string> modes;
-       const ModeParser::ModeHandlerMap& mhs = ServerInstance->Modes.GetModes(type);
+       const ModeParser::ModeHandlerMap& mhs = ServerInstance->Modes.GetModes(mtype);
        for (ModeParser::ModeHandlerMap::const_iterator i = mhs.begin(); i != mhs.end(); ++i)
        {
                const ModeHandler* const mh = i->second;
-               std::string mdesc = mh->name;
-               mdesc.push_back('=');
                const PrefixMode* const pm = mh->IsPrefixMode();
+               std::string mdesc;
+               if (proto_version >= PROTO_INSPIRCD_30)
+               {
+                       if (pm)
+                               mdesc.append("prefix:").append(ConvToStr(pm->GetPrefixRank())).push_back(':');
+                       else if (mh->IsListMode())
+                               mdesc.append("list:");
+                       else if (mh->NeedsParam(true))
+                               mdesc.append(mh->NeedsParam(false) ? "param:" : "param-set:");
+                       else
+                               mdesc.append("simple:");
+               }
+               mdesc.append(mh->name);
+               mdesc.push_back('=');
                if (pm)
                {
                        if (pm->GetPrefix())
@@ -107,7 +133,7 @@ void TreeSocket::SendCapabilities(int phase)
                return;
 
        if (capab->capab_phase < 1 && phase >= 1)
-               WriteLine("CAPAB START " + ConvToStr(ProtocolVersion));
+               WriteLine("CAPAB START " + ConvToStr(PROTO_NEWEST));
 
        capab->capab_phase = phase;
        if (phase < 2)
@@ -164,12 +190,23 @@ void TreeSocket::SendCapabilities(int phase)
        }
 
        // 2.0 needs these keys.
-       if (proto_version == 1202)
+       if (proto_version == PROTO_INSPIRCD_20)
        {
-               extra.append(" PROTOCOL="+ConvToStr(ProtocolVersion));
-               extra.append(" MAXGECOS="+ConvToStr(ServerInstance->Config->Limits.MaxReal));
+               extra.append(" PROTOCOL="+ConvToStr(proto_version))
+                       .append(" MAXGECOS="+ConvToStr(ServerInstance->Config->Limits.MaxReal))
+                       .append(" CHANMODES="+ServerInstance->Modes->GiveModeList(MODETYPE_CHANNEL))
+                       .append(" USERMODES="+ServerInstance->Modes->GiveModeList(MODETYPE_USER))
+                       .append(" PREFIX="+ ServerInstance->Modes->BuildPrefixes());
        }
 
+       // HACK: Allow services to know what extbans exist. This will be
+       // replaced by CAPAB EXTBANS in the next protocol version.
+       std::map<std::string, std::string> tokens;
+       FOREACH_MOD(On005Numeric, (tokens));
+       std::map<std::string, std::string>::const_iterator eiter = tokens.find("EXTBAN");
+       if (eiter != tokens.end())
+               extra.append(" EXTBANS=" + eiter->second);
+
        this->WriteLine("CAPAB CAPABILITIES " /* Preprocessor does this one. */
                        ":NICKMAX="+ConvToStr(ServerInstance->Config->Limits.NickMax)+
                        " CHANMAX="+ConvToStr(ServerInstance->Config->Limits.ChanMax)+
@@ -182,9 +219,6 @@ void TreeSocket::SendCapabilities(int phase)
                        " MAXAWAY="+ConvToStr(ServerInstance->Config->Limits.MaxAway)+
                        " MAXHOST="+ConvToStr(ServerInstance->Config->Limits.MaxHost)+
                        extra+
-                       " PREFIX="+ServerInstance->Modes->BuildPrefixes()+
-                       " CHANMODES="+ServerInstance->Modes->GiveModeList(MODETYPE_CHANNEL)+
-                       " USERMODES="+ServerInstance->Modes->GiveModeList(MODETYPE_USER)+
                        " CASEMAPPING="+ServerInstance->Config->CaseMapping+
                        // XXX: Advertise the presence or absence of m_globops in CAPAB CAPABILITIES.
                        // Services want to know about it, and since m_globops was not marked as VF_(OPT)COMMON
@@ -197,7 +231,7 @@ void TreeSocket::SendCapabilities(int phase)
        this->WriteLine("CAPAB END");
 }
 
-/* Isolate and return the elements that are different between two comma seperated lists */
+/* Isolate and return the elements that are different between two comma separated lists */
 void TreeSocket::ListDifference(const std::string &one, const std::string &two, char sep,
                std::string& mleft, std::string& mright)
 {
@@ -237,18 +271,19 @@ bool TreeSocket::Capab(const CommandBase::Params& params)
                capab->OptModuleList.clear();
                capab->CapKeys.clear();
                if (params.size() > 1)
-                       proto_version = ConvToInt(params[1]);
+                       proto_version = ConvToNum<unsigned int>(params[1]);
 
-               if (proto_version < MinCompatProtocol)
+               if (proto_version < PROTO_OLDEST)
                {
-                       SendError("CAPAB negotiation failed: Server is using protocol version " + (proto_version ? ConvToStr(proto_version) : "1201 or older")
-                               + " which is too old to link with this server (version " + ConvToStr(ProtocolVersion)
-                               + (ProtocolVersion != MinCompatProtocol ? ", links with " + ConvToStr(MinCompatProtocol) + " and above)" : ")"));
+                       SendError("CAPAB negotiation failed: Server is using protocol version "
+                               + (proto_version ? ConvToStr(proto_version) : "1201 or older")
+                               + " which is too old to link with this server (protocol versions "
+                               + ConvToStr(PROTO_OLDEST) + " to " + ConvToStr(PROTO_NEWEST) + " are supported)");
                        return false;
                }
 
-               // Special case, may be removed in the future
-               if (proto_version == 1203 || proto_version == 1204)
+               // We don't support the 2.1 protocol.
+               if (proto_version == PROTO_INSPIRCD_21_A0 || proto_version == PROTO_INSPIRCD_21_B2)
                {
                        SendError("CAPAB negotiation failed: InspIRCd 2.1 beta is not supported");
                        return false;
@@ -275,6 +310,7 @@ bool TreeSocket::Capab(const CommandBase::Params& params)
                                return false;
                        }
                }
+
                if (this->capab->OptModuleList != this->MyModules(VF_OPTCOMMON) && this->capab->OptModuleList.length())
                {
                        std::string diffIneed, diffUneed;
@@ -290,7 +326,7 @@ bool TreeSocket::Capab(const CommandBase::Params& params)
                                }
                                else
                                {
-                                       reason = "Optional modules incorrectly matched on these servers, and options::allowmismatch not set.";
+                                       reason = "Optional modules incorrectly matched on these servers and <options:allowmismatch> is not enabled.";
                                        if (diffIneed.length())
                                                reason += " Not loaded here:" + diffIneed;
                                        if (diffUneed.length())
@@ -301,9 +337,6 @@ bool TreeSocket::Capab(const CommandBase::Params& params)
                        }
                }
 
-               if(this->capab->CapKeys.find("PREFIX") != this->capab->CapKeys.end() && this->capab->CapKeys.find("PREFIX")->second != ServerInstance->Modes->BuildPrefixes())
-                       reason = "One or more of the prefixes on the remote server are invalid on this server.";
-
                if (!capab->ChanModes.empty())
                {
                        if (capab->ChanModes != BuildModeList(MODETYPE_CHANNEL))
@@ -320,10 +353,25 @@ bool TreeSocket::Capab(const CommandBase::Params& params)
                                }
                        }
                }
-               else if (this->capab->CapKeys.find("CHANMODES") != this->capab->CapKeys.end())
+               else if (proto_version == PROTO_INSPIRCD_20)
+               {
+                       if (this->capab->CapKeys.find("CHANMODES") != this->capab->CapKeys.end())
+                       {
+                               if (this->capab->CapKeys.find("CHANMODES")->second != ServerInstance->Modes->GiveModeList(MODETYPE_CHANNEL))
+                                       reason = "One or more of the channel modes on the remote server are invalid on this server.";
+                       }
+
+                       else if (this->capab->CapKeys.find("PREFIX") != this->capab->CapKeys.end())
+                       {
+                               if (this->capab->CapKeys.find("PREFIX")->second != ServerInstance->Modes->BuildPrefixes())
+                                       reason = "One or more of the prefixes on the remote server are invalid on this server.";
+                       }
+               }
+
+               if (!reason.empty())
                {
-                       if (this->capab->CapKeys.find("CHANMODES")->second != ServerInstance->Modes->GiveModeList(MODETYPE_CHANNEL))
-                               reason = "One or more of the channel modes on the remote server are invalid on this server.";
+                       this->SendError("CAPAB negotiation failed: " + reason);
+                       return false;
                }
 
                if (!capab->UserModes.empty())
@@ -342,28 +390,29 @@ bool TreeSocket::Capab(const CommandBase::Params& params)
                                }
                        }
                }
-               else if (this->capab->CapKeys.find("USERMODES") != this->capab->CapKeys.end())
+               else if (proto_version == PROTO_INSPIRCD_20 && this->capab->CapKeys.find("USERMODES") != this->capab->CapKeys.end())
                {
                        if (this->capab->CapKeys.find("USERMODES")->second != ServerInstance->Modes->GiveModeList(MODETYPE_USER))
                                reason = "One or more of the user modes on the remote server are invalid on this server.";
                }
-               else
+
+               if (!reason.empty())
                {
-                       // We default to rfc1459 here because if this key is not sent then
-                       // the remote server is running the 2.0 protocol which uses rfc1459
-                       // by default.
-                       std::string casemapping = "rfc1459";
-                       std::map<std::string, std::string>::iterator citer = this->capab->CapKeys.find("CASEMAPPING");
-                       if (citer != this->capab->CapKeys.end())
-                               casemapping = citer->second;
+                       this->SendError("CAPAB negotiation failed: " + reason);
+                       return false;
+               }
 
+               if (this->capab->CapKeys.find("CASEMAPPING") != this->capab->CapKeys.end())
+               {
+                       const std::string casemapping = this->capab->CapKeys.find("CASEMAPPING")->second;
                        if (casemapping != ServerInstance->Config->CaseMapping)
                        {
                                reason = "The casemapping of the remote server differs to that of the local server."
                                        " Local casemapping: " + ServerInstance->Config->CaseMapping +
                                        " Remote casemapping: " + casemapping;
+                               this->SendError("CAPAB negotiation failed: " + reason);
+                               return false;
                        }
-
                }
 
                /* Challenge response, store their challenge for our password */
@@ -387,12 +436,6 @@ bool TreeSocket::Capab(const CommandBase::Params& params)
                                this->WriteLine("SERVER "+ServerInstance->Config->ServerName+" "+capab->link->SendPass+" 0 "+ServerInstance->Config->GetSID()+" :"+ServerInstance->Config->ServerDesc);
                        }
                }
-
-               if (reason.length())
-               {
-                       this->SendError("CAPAB negotiation failed: "+reason);
-                       return false;
-               }
        }
        else if ((params[0] == "MODULES") && (params.size() == 2))
        {
@@ -428,7 +471,7 @@ bool TreeSocket::Capab(const CommandBase::Params& params)
        }
        else if ((params[0] == "CAPABILITIES") && (params.size() == 2))
        {
-               irc::tokenstream capabs(params[1]);
+               irc::spacesepstream capabs(params[1]);
                std::string item;
                while (capabs.GetToken(item))
                {