-/* +------------------------------------+
- * | Inspire Internet Relay Chat Daemon |
- * +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
*
- * InspIRCd: (C) 2002-2008 InspIRCd Development Team
- * See: http://www.inspircd.org/wiki/index.php/Credits
+ * Copyright (C) 2009 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 "xline.h"
+#include "listmode.h"
-#include "m_spanningtree/treesocket.h"
-#include "m_spanningtree/treeserver.h"
-#include "m_spanningtree/utils.h"
+#include "treesocket.h"
+#include "treeserver.h"
+#include "main.h"
+#include "commands.h"
-/* $ModDep: m_spanningtree/utils.h m_spanningtree/treeserver.h m_spanningtree/treesocket.h */
+/**
+ * Creates FMODE messages, used only when syncing channels
+ */
+class FModeBuilder : public CmdBuilder
+{
+ static const size_t maxline = 480;
+ std::string params;
+ unsigned int modes;
+ std::string::size_type startpos;
+ public:
+ FModeBuilder(Channel* chan)
+ : CmdBuilder("FMODE"), modes(0)
+ {
+ push(chan->name).push_int(chan->age).push_raw(" +");
+ startpos = str().size();
+ }
+
+ /** Add a mode to the message
+ */
+ void push_mode(const char modeletter, const std::string& mask)
+ {
+ push_raw(modeletter);
+ params.push_back(' ');
+ params.append(mask);
+ modes++;
+ }
+
+ /** Remove all modes from the message
+ */
+ void clear()
+ {
+ content.erase(startpos);
+ params.clear();
+ modes = 0;
+ }
+
+ /** Prepare the message for sending, next mode can only be added after clear()
+ */
+ const std::string& finalize()
+ {
+ return push_raw(params);
+ }
+
+ /** Returns true if the given mask can be added to the message, false if the message
+ * has no room for the mask
+ */
+ bool has_room(const std::string& mask) const
+ {
+ return ((str().size() + params.size() + mask.size() + 2 <= maxline) &&
+ (modes < ServerInstance->Config->Limits.MaxModes));
+ }
+
+ /** Returns true if this message is empty (has no modes)
+ */
+ bool empty() const
+ {
+ return (modes == 0);
+ }
+};
+
+struct TreeSocket::BurstState
+{
+ SpanningTreeProtocolInterface::Server server;
+ BurstState(TreeSocket* sock) : server(sock) { }
+};
/** This function is called when we want to send a netburst to a local
* server. There is a set order we must do this, because for example
*/
void TreeSocket::DoBurst(TreeServer* s)
{
- std::string name = s->GetName();
- std::string burst = ":" + this->Instance->Config->GetSID() + " BURST " +ConvToStr(Instance->Time());
- std::string endburst = ":" + this->Instance->Config->GetSID() + " ENDBURST";
- this->Instance->SNO->WriteToSnoMask('l',"Bursting to \2%s\2 (Authentication: %s).", name.c_str(), this->GetTheirChallenge().empty() ? "plaintext password" : "SHA256-HMAC challenge-response");
- this->WriteLine(burst);
- /* send our version string */
- this->WriteLine(std::string(":")+this->Instance->Config->GetSID()+" VERSION :"+this->Instance->GetVersionString());
- /* Send server tree */
- this->SendServers(Utils->TreeRoot,s,1);
- /* Send users and their oper status */
- this->SendUsers(s);
- /* Send everything else (channel modes, xlines etc) */
- this->SendChannelModes(s);
- this->SendXLines(s);
- FOREACH_MOD_I(this->Instance,I_OnSyncOtherMetaData,OnSyncOtherMetaData((Module*)Utils->Creator,(void*)this));
- this->WriteLine(endburst);
- this->Instance->SNO->WriteToSnoMask('l',"Finished bursting to \2"+name+"\2.");
+ ServerInstance->SNO->WriteToSnoMask('l',"Bursting to \2%s\2 (Authentication: %s%s).",
+ s->GetName().c_str(),
+ capab->auth_fingerprint ? "SSL certificate fingerprint and " : "",
+ capab->auth_challenge ? "challenge-response" : "plaintext password");
+ this->CleanNegotiationInfo();
+ this->WriteLine(CmdBuilder("BURST").push_int(ServerInstance->Time()));
+ // Introduce all servers behind us
+ this->SendServers(Utils->TreeRoot, s);
+
+ BurstState bs(this);
+ // Introduce all users
+ this->SendUsers(bs);
+
+ // Sync all channels
+ const chan_hash& chans = ServerInstance->GetChans();
+ for (chan_hash::const_iterator i = chans.begin(); i != chans.end(); ++i)
+ SyncChannel(i->second, bs);
+
+ // Send all xlines
+ this->SendXLines();
+ FOREACH_MOD(OnSyncNetwork, (bs.server));
+ this->WriteLine(CmdBuilder("ENDBURST"));
+ ServerInstance->SNO->WriteToSnoMask('l',"Finished bursting to \2"+ s->GetName()+"\2.");
+
+ this->burstsent = true;
+}
+
+void TreeSocket::SendServerInfo(TreeServer* from)
+{
+ // Send public version string
+ this->WriteLine(CommandSInfo::Builder(from, "version", from->GetVersion()));
+
+ // Send full version string that contains more information and is shown to opers
+ this->WriteLine(CommandSInfo::Builder(from, "fullversion", from->GetFullVersion()));
}
-/** Recursively send the server tree with distances as hops.
+/** Recursively send the server tree.
* This is used during network burst to inform the other server
* (and any of ITS servers too) of what servers we know about.
* If at any point any of these servers already exist on the other
- * end, our connection may be terminated. The hopcounts given
- * by this function are relative, this doesn't matter so long as
- * they are all >1, as all the remote servers re-calculate them
- * to be relative too, with themselves as hop 0.
+ * end, our connection may be terminated.
*/
-void TreeSocket::SendServers(TreeServer* Current, TreeServer* s, int hops)
+void TreeSocket::SendServers(TreeServer* Current, TreeServer* s)
{
- char command[1024];
- for (unsigned int q = 0; q < Current->ChildCount(); q++)
+ SendServerInfo(Current);
+
+ const TreeServer::ChildServers& children = Current->GetChildren();
+ for (TreeServer::ChildServers::const_iterator i = children.begin(); i != children.end(); ++i)
{
- TreeServer* recursive_server = Current->GetChild(q);
+ TreeServer* recursive_server = *i;
if (recursive_server != s)
{
- snprintf(command,1024,":%s SERVER %s * %d %s :%s",Current->GetName().c_str(),recursive_server->GetName().c_str(),hops,
- recursive_server->GetID().c_str(),
- recursive_server->GetDesc().c_str());
- this->WriteLine(command);
- this->WriteLine(":"+recursive_server->GetName()+" VERSION :"+recursive_server->GetVersion());
+ this->WriteLine(CommandServer::Builder(recursive_server));
/* down to next level */
- this->SendServers(recursive_server, s, hops+1);
+ this->SendServers(recursive_server, s);
}
}
}
/** Send one or more FJOINs for a channel of users.
- * If the length of a single line is more than 480-NICKMAX
- * in length, it is split over multiple lines.
+ * If the length of a single line is too long, it is split over multiple lines.
*/
-void TreeSocket::SendFJoins(TreeServer* Current, Channel* c)
+void TreeSocket::SendFJoins(Channel* c)
{
- std::string buffer;
- char list[MAXBUF];
-
- size_t dlen, curlen;
- dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu +%s",this->Instance->Config->GetSID().c_str(),c->name,(unsigned long)c->age, c->ChanModes(true));
- int numusers = 0;
- char* ptr = list + dlen;
- bool looped_once = false;
-
- CUList *ulist = c->GetUsers();
- std::string modes;
- std::string params;
+ CommandFJoin::Builder fjoin(c);
- for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
+ const Channel::MemberMap& ulist = c->GetUsers();
+ for (Channel::MemberMap::const_iterator i = ulist.begin(); i != ulist.end(); ++i)
{
- // The first parameter gets a : before it
- size_t ptrlen = snprintf(ptr, MAXBUF, " %s%s,%s", !numusers ? ":" : "", this->Instance->Modes->ModeString(i->first, c, false).c_str(), i->first->uuid);
-
- looped_once = true;
-
- curlen += ptrlen;
- ptr += ptrlen;
-
- numusers++;
-
- if (curlen > (480-NICKMAX))
+ Membership* memb = i->second;
+ if (!fjoin.has_room(memb))
{
- buffer.append(list).append("\r\n");
- dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu +%s",this->Instance->Config->GetSID().c_str(),c->name,(unsigned long)c->age, c->ChanModes(true));
- ptr = list + dlen;
- ptrlen = 0;
- numusers = 0;
+ // No room for this user, send the line and prepare a new one
+ this->WriteLine(fjoin.finalize());
+ fjoin.clear();
}
+ fjoin.add(memb);
}
-
- // Okay, permanent channels will (of course) need this \r\n anyway, numusers check is if there
- // actually were people in the channel (looped_once == true)
- if (!looped_once || numusers > 0)
- buffer.append(list).append("\r\n");
-
- int linesize = 1;
- for (BanList::iterator b = c->bans.begin(); b != c->bans.end(); b++)
- {
- int size = strlen(b->data) + 2;
- int currsize = linesize + size;
- if (currsize <= 350)
- {
- modes.append("b");
- params.append(" ").append(b->data);
- linesize += size;
- }
- if ((params.length() >= MAXMODES) || (currsize > 350))
- {
- /* Wrap at MAXMODES */
- buffer.append(":").append(this->Instance->Config->GetSID()).append(" FMODE ").append(c->name).append(" ").append(ConvToStr(c->age)).append(" +").append(modes).append(params).append("\r\n");
- modes.clear();
- params.clear();
- linesize = 1;
- }
- }
-
- /* Only send these if there are any */
- if (!modes.empty())
- buffer.append(":").append(this->Instance->Config->GetSID()).append(" FMODE ").append(c->name).append(" ").append(ConvToStr(c->age)).append(" +").append(modes).append(params);
-
- this->WriteLine(buffer);
+ this->WriteLine(fjoin.finalize());
}
-/** Send G, Q, Z and E lines */
-void TreeSocket::SendXLines(TreeServer* Current)
+/** Send all XLines we know about */
+void TreeSocket::SendXLines()
{
- char data[MAXBUF];
- std::string n = this->Instance->Config->GetSID();
- const char* sn = n.c_str();
-
- std::vector<std::string> types = Instance->XLines->GetAllTypes();
+ std::vector<std::string> types = ServerInstance->XLines->GetAllTypes();
- for (std::vector<std::string>::iterator it = types.begin(); it != types.end(); ++it)
+ for (std::vector<std::string>::const_iterator it = types.begin(); it != types.end(); ++it)
{
- XLineLookup* lookup = Instance->XLines->GetAll(*it);
+ /* Expired lines are removed in XLineManager::GetAll() */
+ XLineLookup* lookup = ServerInstance->XLines->GetAll(*it);
+ /* lookup cannot be NULL in this case but a check won't hurt */
if (lookup)
{
for (LookupIter i = lookup->begin(); i != lookup->end(); ++i)
if (!i->second->IsBurstable())
break;
- snprintf(data,MAXBUF,":%s ADDLINE %s %s %s %lu %lu :%s",sn, it->c_str(), i->second->Displayable(),
- i->second->source,
- (unsigned long)i->second->set_time,
- (unsigned long)i->second->duration,
- i->second->reason);
- this->WriteLine(data);
+ this->WriteLine(CommandAddLine::Builder(i->second));
}
}
}
}
-/** Send channel modes and topics */
-void TreeSocket::SendChannelModes(TreeServer* Current)
+void TreeSocket::SendListModes(Channel* chan)
{
- char data[MAXBUF];
- std::deque<std::string> list;
- std::string n = this->Instance->Config->GetSID();
- const char* sn = n.c_str();
- for (chan_hash::iterator c = this->Instance->chanlist->begin(); c != this->Instance->chanlist->end(); c++)
+ FModeBuilder fmode(chan);
+ const ModeParser::ListModeList& listmodes = ServerInstance->Modes->GetListModes();
+ for (ModeParser::ListModeList::const_iterator i = listmodes.begin(); i != listmodes.end(); ++i)
{
- SendFJoins(Current, c->second);
- if (*c->second->topic)
- {
- snprintf(data,MAXBUF,":%s FTOPIC %s %lu %s :%s",sn,c->second->name,(unsigned long)c->second->topicset,c->second->setby,c->second->topic);
- this->WriteLine(data);
- }
- FOREACH_MOD_I(this->Instance,I_OnSyncChannel,OnSyncChannel(c->second,(Module*)Utils->Creator,(void*)this));
- list.clear();
- c->second->GetExtList(list);
- for (unsigned int j = 0; j < list.size(); j++)
+ ListModeBase* mh = *i;
+ ListModeBase::ModeList* list = mh->GetList(chan);
+ if (!list)
+ continue;
+
+ // Add all items on the list to the FMODE, send it whenever it becomes too long
+ const char modeletter = mh->GetModeChar();
+ for (ListModeBase::ModeList::const_iterator j = list->begin(); j != list->end(); ++j)
{
- FOREACH_MOD_I(this->Instance,I_OnSyncChannelMetaData,OnSyncChannelMetaData(c->second,(Module*)Utils->Creator,(void*)this,list[j]));
+ const std::string& mask = j->mask;
+ if (!fmode.has_room(mask))
+ {
+ // No room for this mask, send the current line as-is then add the mask to a
+ // new, empty FMODE message
+ this->WriteLine(fmode.finalize());
+ fmode.clear();
+ }
+ fmode.push_mode(modeletter, mask);
}
}
+
+ if (!fmode.empty())
+ this->WriteLine(fmode.finalize());
}
-/** send all users and their oper state/modes */
-void TreeSocket::SendUsers(TreeServer* Current)
+/** Send channel users, topic, modes and global metadata */
+void TreeSocket::SyncChannel(Channel* chan, BurstState& bs)
{
- char data[MAXBUF];
- std::deque<std::string> list;
- std::string dataline;
- for (user_hash::iterator u = this->Instance->Users->clientlist->begin(); u != this->Instance->Users->clientlist->end(); u++)
+ SendFJoins(chan);
+
+ // If the topic was ever set, send it, even if it's empty now
+ // because a new empty topic should override an old non-empty topic
+ if (chan->topicset != 0)
+ this->WriteLine(CommandFTopic::Builder(chan));
+
+ SendListModes(chan);
+
+ for (Extensible::ExtensibleStore::const_iterator i = chan->GetExtList().begin(); i != chan->GetExtList().end(); i++)
{
- if (u->second->registered == REG_ALL)
- {
- TreeServer* theirserver = Utils->FindServer(u->second->server);
- if (theirserver)
- {
- snprintf(data,MAXBUF,":%s UID %s %lu %s %s %s %s +%s %s %lu :%s", theirserver->GetID().c_str(), u->second->uuid,
- (unsigned long)u->second->age, u->second->nick, u->second->host, u->second->dhost,
- u->second->ident, u->second->FormatModes(), u->second->GetIPString(),
- (unsigned long)u->second->signon, u->second->fullname);
- this->WriteLine(data);
- if (IS_OPER(u->second))
- {
- snprintf(data,MAXBUF,":%s OPERTYPE %s", u->second->uuid, u->second->oper);
- this->WriteLine(data);
- }
- if (IS_AWAY(u->second))
- {
- snprintf(data,MAXBUF,":%s AWAY :%s", u->second->uuid, u->second->awaymsg);
- this->WriteLine(data);
- }
- }
+ ExtensionItem* item = i->first;
+ std::string value = item->serialize(FORMAT_NETWORK, chan, i->second);
+ if (!value.empty())
+ this->WriteLine(CommandMetadata::Builder(chan, item->name, value));
+ }
- FOREACH_MOD_I(this->Instance,I_OnSyncUser,OnSyncUser(u->second,(Module*)Utils->Creator,(void*)this));
- list.clear();
- u->second->GetExtList(list);
- for (unsigned int j = 0; j < list.size(); j++)
- {
- FOREACH_MOD_I(this->Instance,I_OnSyncUserMetaData,OnSyncUserMetaData(u->second,(Module*)Utils->Creator,(void*)this,list[j]));
- }
+ FOREACH_MOD(OnSyncChannel, (chan, bs.server));
+}
+
+void TreeSocket::SyncChannel(Channel* chan)
+{
+ BurstState bs(this);
+ SyncChannel(chan, bs);
+}
+
+/** Send all users and their state, including oper and away status and global metadata */
+void TreeSocket::SendUsers(BurstState& bs)
+{
+ ProtocolInterface::Server& piserver = bs.server;
+
+ const user_hash& users = ServerInstance->Users->GetUsers();
+ for (user_hash::const_iterator u = users.begin(); u != users.end(); ++u)
+ {
+ User* user = u->second;
+ if (user->registered != REG_ALL)
+ continue;
+
+ this->WriteLine(CommandUID::Builder(user));
+
+ if (user->IsOper())
+ this->WriteLine(CommandOpertype::Builder(user));
+
+ if (user->IsAway())
+ this->WriteLine(CommandAway::Builder(user));
+
+ const Extensible::ExtensibleStore& exts = user->GetExtList();
+ for (Extensible::ExtensibleStore::const_iterator i = exts.begin(); i != exts.end(); ++i)
+ {
+ ExtensionItem* item = i->first;
+ std::string value = item->serialize(FORMAT_NETWORK, u->second, i->second);
+ if (!value.empty())
+ this->WriteLine(CommandMetadata::Builder(user, item->name, value));
}
+
+ FOREACH_MOD(OnSyncUser, (user, piserver));
}
}
-