diff options
Diffstat (limited to 'src/modules/m_spanningtree/utils.cpp')
-rw-r--r-- | src/modules/m_spanningtree/utils.cpp | 650 |
1 files changed, 1 insertions, 649 deletions
diff --git a/src/modules/m_spanningtree/utils.cpp b/src/modules/m_spanningtree/utils.cpp index 9675a6ac8..4d0256fa2 100644 --- a/src/modules/m_spanningtree/utils.cpp +++ b/src/modules/m_spanningtree/utils.cpp @@ -1,649 +1 @@ -/* +------------------------------------+ - * | Inspire Internet Relay Chat Daemon | - * +------------------------------------+ - * - * InspIRCd: (C) 2002-2007 InspIRCd Development Team - * See: http://www.inspircd.org/wiki/index.php/Credits - * - * This program is free but copyrighted software; see - * the file COPYING for details. - * - * --------------------------------------------------- - */ - -#include "inspircd.h" -#include "configreader.h" -#include "users.h" -#include "channels.h" -#include "modules.h" -#include "commands/cmd_whois.h" -#include "commands/cmd_stats.h" -#include "socket.h" -#include "wildcard.h" -#include "xline.h" -#include "transport.h" -#include "socketengine.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" - -/* $ModDep: m_spanningtree/timesynctimer.h m_spanningtree/resolvers.h m_spanningtree/main.h m_spanningtree/utils.h m_spanningtree/treeserver.h m_spanningtree/link.h m_spanningtree/treesocket.h */ - -/** Yay for fast searches! - * This is hundreds of times faster than recursion - * or even scanning a linked list, especially when - * there are more than a few servers to deal with. - * (read as: lots). - */ -TreeServer* SpanningTreeUtilities::FindServer(const std::string &ServerName) -{ - server_hash::iterator iter = serverlist.find(ServerName.c_str()); - if (iter != serverlist.end()) - { - return iter->second; - } - else - { - return NULL; - } -} - -TreeServer* SpanningTreeUtilities::FindRemoteBurstServer(TreeServer* Server) -{ - server_hash::iterator iter = RemoteServersBursting.find(Server->GetName().c_str()); - if (iter != RemoteServersBursting.end()) - return iter->second; - else - return NULL; -} - -TreeSocket* SpanningTreeUtilities::FindBurstingServer(const std::string &ServerName) -{ - std::map<irc::string,TreeSocket*>::iterator iter; - iter = burstingserverlist.find(ServerName.c_str()); - if (iter != burstingserverlist.end()) - { - return iter->second; - } - else - { - return NULL; - } -} - -void SpanningTreeUtilities::SetRemoteBursting(TreeServer* Server, bool bursting) -{ - server_hash::iterator iter = RemoteServersBursting.find(Server->GetName().c_str()); - if (bursting) - { - if (iter == RemoteServersBursting.end()) - RemoteServersBursting.insert(make_pair(Server->GetName(), Server)); - else return; - } - else - { - if (iter != RemoteServersBursting.end()) - RemoteServersBursting.erase(iter); - else return; - } - ServerInstance->Log(DEBUG,"Server %s is %sbursting nicknames", Server->GetName().c_str(), bursting ? "" : "no longer "); -} - -void SpanningTreeUtilities::AddBurstingServer(const std::string &ServerName, TreeSocket* s) -{ - std::map<irc::string,TreeSocket*>::iterator iter = burstingserverlist.find(ServerName.c_str()); - if (iter == burstingserverlist.end()) - burstingserverlist[ServerName.c_str()] = s; -} - -void SpanningTreeUtilities::DelBurstingServer(TreeSocket* s) -{ - for (std::map<irc::string,TreeSocket*>::iterator iter = burstingserverlist.begin(); iter != burstingserverlist.end(); iter++) - { - if (iter->second == s) - { - burstingserverlist.erase(iter); - return; - } - } -} - -/** Returns the locally connected server we must route a - * message through to reach server 'ServerName'. This - * only applies to one-to-one and not one-to-many routing. - * See the comments for the constructor of TreeServer - * for more details. - */ -TreeServer* SpanningTreeUtilities::BestRouteTo(const std::string &ServerName) -{ - if (ServerName.c_str() == TreeRoot->GetName()) - return NULL; - TreeServer* Found = FindServer(ServerName); - if (Found) - { - return Found->GetRoute(); - } - else - { - return NULL; - } -} - -/** Find the first server matching a given glob mask. - * Theres no find-using-glob method of hash_map [awwww :-(] - * so instead, we iterate over the list using an iterator - * and match each one until we get a hit. Yes its slow, - * deal with it. - */ -TreeServer* SpanningTreeUtilities::FindServerMask(const std::string &ServerName) -{ - for (server_hash::iterator i = serverlist.begin(); i != serverlist.end(); i++) - { - if (match(i->first.c_str(),ServerName.c_str())) - return i->second; - } - return NULL; -} - -/* A convenient wrapper that returns true if a server exists */ -bool SpanningTreeUtilities::IsServer(const std::string &ServerName) -{ - return (FindServer(ServerName) != NULL); -} - -SpanningTreeUtilities::SpanningTreeUtilities(InspIRCd* Instance, ModuleSpanningTree* C) : ServerInstance(Instance), Creator(C) -{ - Bindings.clear(); - - lines_to_apply = 0; - - this->TreeRoot = new TreeServer(this, ServerInstance, ServerInstance->Config->ServerName, ServerInstance->Config->ServerDesc); - - modulelist* ml = ServerInstance->FindInterface("InspSocketHook"); - - /* Did we find any modules? */ - if (ml) - { - /* Yes, enumerate them all to find out the hook name */ - for (modulelist::iterator m = ml->begin(); m != ml->end(); m++) - { - /* Make a request to it for its name, its implementing - * InspSocketHook so we know its safe to do this - */ - std::string name = InspSocketNameRequest((Module*)Creator, *m).Send(); - /* Build a map of them */ - hooks[name.c_str()] = *m; - hooknames.push_back(name); - } - } - - this->ReadConfiguration(true); -} - -SpanningTreeUtilities::~SpanningTreeUtilities() -{ - for (unsigned int i = 0; i < Bindings.size(); i++) - { - ServerInstance->SE->DelFd(Bindings[i]); - Bindings[i]->Close(); - DELETE(Bindings[i]); - } - while (TreeRoot->ChildCount()) - { - TreeServer* child_server = TreeRoot->GetChild(0); - if (child_server) - { - TreeSocket* sock = child_server->GetSocket(); - ServerInstance->SE->DelFd(sock); - sock->Close(); - DELETE(sock); - } - } - delete TreeRoot; -} - -void SpanningTreeUtilities::AddThisServer(TreeServer* server, TreeServerList &list) -{ - if (list.find(server) == list.end()) - list[server] = server; -} - -/* returns a list of DIRECT servernames for a specific channel */ -void SpanningTreeUtilities::GetListOfServersForChannel(chanrec* c, TreeServerList &list, char status, const CUList &exempt_list) -{ - CUList *ulist; - switch (status) - { - case '@': - ulist = c->GetOppedUsers(); - break; - case '%': - ulist = c->GetHalfoppedUsers(); - break; - case '+': - ulist = c->GetVoicedUsers(); - break; - default: - ulist = c->GetUsers(); - break; - } - for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++) - { - if ((i->first->GetFd() < 0) && (exempt_list.find(i->first) == exempt_list.end())) - { - TreeServer* best = this->BestRouteTo(i->first->server); - if (best) - AddThisServer(best,list); - } - } - return; -} - -bool SpanningTreeUtilities::DoOneToAllButSenderRaw(const std::string &data, const std::string &omit, const std::string &prefix, const irc::string &command, std::deque<std::string> ¶ms) -{ - char pfx = 0; - TreeServer* omitroute = this->BestRouteTo(omit); - if ((command == "NOTICE") || (command == "PRIVMSG")) - { - if (params.size() >= 2) - { - /* Prefixes */ - if ((*(params[0].c_str()) == '@') || (*(params[0].c_str()) == '%') || (*(params[0].c_str()) == '+')) - { - pfx = params[0][0]; - params[0] = params[0].substr(1, params[0].length()-1); - } - if ((*(params[0].c_str()) != '#') && (*(params[0].c_str()) != '$')) - { - // special routing for private messages/notices - userrec* d = ServerInstance->FindNick(params[0]); - if (d) - { - std::deque<std::string> par; - par.push_back(params[0]); - par.push_back(":"+params[1]); - this->DoOneToOne(prefix,command.c_str(),par,d->server); - return true; - } - } - else if (*(params[0].c_str()) == '$') - { - std::deque<std::string> par; - par.push_back(params[0]); - par.push_back(":"+params[1]); - this->DoOneToAllButSender(prefix,command.c_str(),par,omitroute->GetName()); - return true; - } - else - { - chanrec* c = ServerInstance->FindChan(params[0]); - userrec* u = ServerInstance->FindNick(prefix); - if (c && u) - { - CUList elist; - TreeServerList list; - FOREACH_MOD(I_OnBuildExemptList, OnBuildExemptList((command == "PRIVMSG" ? MSG_PRIVMSG : MSG_NOTICE), c, u, pfx, elist)); - GetListOfServersForChannel(c,list,pfx,elist); - - for (TreeServerList::iterator i = list.begin(); i != list.end(); i++) - { - TreeSocket* Sock = i->second->GetSocket(); - if ((Sock) && (i->second->GetName() != omit) && (omitroute != i->second)) - { - Sock->WriteLine(data); - } - } - return true; - } - } - } - } - unsigned int items =this->TreeRoot->ChildCount(); - for (unsigned int x = 0; x < items; x++) - { - TreeServer* Route = this->TreeRoot->GetChild(x); - if ((Route) && (Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route)) - { - TreeSocket* Sock = Route->GetSocket(); - if (Sock) - Sock->WriteLine(data); - } - } - return true; -} - -bool SpanningTreeUtilities::DoOneToAllButSender(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string omit) -{ - TreeServer* omitroute = this->BestRouteTo(omit); - std::string FullLine = ":" + prefix + " " + command; - unsigned int words = params.size(); - for (unsigned int x = 0; x < words; x++) - { - FullLine = FullLine + " " + params[x]; - } - unsigned int items = this->TreeRoot->ChildCount(); - for (unsigned int x = 0; x < items; x++) - { - TreeServer* Route = this->TreeRoot->GetChild(x); - // Send the line IF: - // The route has a socket (its a direct connection) - // The route isnt the one to be omitted - // The route isnt the path to the one to be omitted - if ((Route) && (Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route)) - { - TreeSocket* Sock = Route->GetSocket(); - if (Sock) - Sock->WriteLine(FullLine); - } - } - return true; -} - -bool SpanningTreeUtilities::DoOneToMany(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms) -{ - std::string FullLine = ":" + prefix + " " + command; - unsigned int words = params.size(); - for (unsigned int x = 0; x < words; x++) - { - FullLine = FullLine + " " + params[x]; - } - unsigned int items = this->TreeRoot->ChildCount(); - for (unsigned int x = 0; x < items; x++) - { - TreeServer* Route = this->TreeRoot->GetChild(x); - if (Route && Route->GetSocket()) - { - TreeSocket* Sock = Route->GetSocket(); - if (Sock) - Sock->WriteLine(FullLine); - } - } - return true; -} - -bool SpanningTreeUtilities::DoOneToMany(const char* prefix, const char* command, std::deque<std::string> ¶ms) -{ - std::string spfx = prefix; - std::string scmd = command; - return this->DoOneToMany(spfx, scmd, params); -} - -bool SpanningTreeUtilities::DoOneToAllButSender(const char* prefix, const char* command, std::deque<std::string> ¶ms, std::string omit) -{ - std::string spfx = prefix; - std::string scmd = command; - return this->DoOneToAllButSender(spfx, scmd, params, omit); -} - -bool SpanningTreeUtilities::DoOneToOne(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string target) -{ - TreeServer* Route = this->BestRouteTo(target); - if (Route) - { - std::string FullLine = ":" + prefix + " " + command; - unsigned int words = params.size(); - for (unsigned int x = 0; x < words; x++) - { - FullLine = FullLine + " " + params[x]; - } - if (Route && Route->GetSocket()) - { - TreeSocket* Sock = Route->GetSocket(); - if (Sock) - Sock->WriteLine(FullLine); - } - return true; - } - else - { - return false; - } -} - -void SpanningTreeUtilities::RefreshIPCache() -{ - ValidIPs.clear(); - for (std::vector<Link>::iterator L = LinkBlocks.begin(); L != LinkBlocks.end(); L++) - { - if ((!L->IPAddr.empty()) && (!L->RecvPass.empty()) && (!L->SendPass.empty()) && (!L->Name.empty()) && (L->Port)) - { - ValidIPs.push_back(L->IPAddr); - - if (L->AllowMask.length()) - ValidIPs.push_back(L->AllowMask); - - /* Needs resolving */ - bool ipvalid = true; - QueryType start_type = DNS_QUERY_A; -#ifdef IPV6 - start_type = DNS_QUERY_AAAA; - if (strchr(L->IPAddr.c_str(),':')) - { - in6_addr n; - if (inet_pton(AF_INET6, L->IPAddr.c_str(), &n) < 1) - ipvalid = false; - } - else -#endif - { - in_addr n; - if (inet_aton(L->IPAddr.c_str(),&n) < 1) - ipvalid = false; - } - if (!ipvalid) - { - try - { - bool cached; - SecurityIPResolver* sr = new SecurityIPResolver((Module*)this->Creator, this, ServerInstance, L->IPAddr, *L, cached, start_type); - ServerInstance->AddResolver(sr, cached); - } - catch (...) - { - } - } - } - } -} - -void SpanningTreeUtilities::ReadConfiguration(bool rebind) -{ - ConfigReader* Conf = new ConfigReader(ServerInstance); - if (rebind) - { - for (int j = 0; j < Conf->Enumerate("bind"); j++) - { - std::string Type = Conf->ReadValue("bind","type",j); - std::string IP = Conf->ReadValue("bind","address",j); - std::string Port = Conf->ReadValue("bind","port",j); - std::string transport = Conf->ReadValue("bind","transport",j); - if (Type == "servers") - { - irc::portparser portrange(Port, false); - int portno = -1; - while ((portno = portrange.GetToken())) - { - if (IP == "*") - IP.clear(); - - if ((!transport.empty()) && (hooks.find(transport.c_str()) == hooks.end())) - { - ServerInstance->Log(DEFAULT,"m_spanningtree: WARNING: Can't find transport type '%s' for port %s:%s - maybe you forgot to load it BEFORE m_spanningtree in your config file? - Skipping this port binding", transport.c_str(), IP.c_str(), Port.c_str()); - break; - } - - TreeSocket* listener = new TreeSocket(this, ServerInstance, IP.c_str(), portno, true, 10, transport.empty() ? NULL : hooks[transport.c_str()]); - if (listener->GetState() == I_LISTENING) - { - ServerInstance->Log(DEFAULT,"m_spanningtree: Binding server port %s:%d successful!", IP.c_str(), portno); - Bindings.push_back(listener); - } - else - { - ServerInstance->Log(DEFAULT,"m_spanningtree: Warning: Failed to bind server port: %s:%d: %s",IP.c_str(), portno, strerror(errno)); - listener->Close(); - DELETE(listener); - } - } - } - } - } - FlatLinks = Conf->ReadFlag("options","flatlinks",0); - HideULines = Conf->ReadFlag("options","hideulines",0); - AnnounceTSChange = Conf->ReadFlag("options","announcets",0); - EnableTimeSync = Conf->ReadFlag("timesync","enable",0); - MasterTime = Conf->ReadFlag("timesync", "master", 0); - ChallengeResponse = !Conf->ReadFlag("options", "disablehmac", 0); - quiet_bursts = Conf->ReadFlag("options", "quietbursts", 0); - PingWarnTime = Conf->ReadInteger("options", "pingwarning", 0, true); - - if (PingWarnTime < 0 || PingWarnTime > 59) - PingWarnTime = 0; - - LinkBlocks.clear(); - ValidIPs.clear(); - for (int j = 0; j < Conf->Enumerate("link"); j++) - { - Link L; - std::string Allow = Conf->ReadValue("link", "allowmask", j); - L.Name = (Conf->ReadValue("link", "name", j)).c_str(); - L.AllowMask = Allow; - L.IPAddr = Conf->ReadValue("link", "ipaddr", j); - L.FailOver = Conf->ReadValue("link", "failover", j).c_str(); - L.Port = Conf->ReadInteger("link", "port", j, true); - L.SendPass = Conf->ReadValue("link", "sendpass", j); - L.RecvPass = Conf->ReadValue("link", "recvpass", j); - L.AutoConnect = Conf->ReadInteger("link", "autoconnect", j, true); - L.HiddenFromStats = Conf->ReadFlag("link", "statshidden", j); - L.Timeout = Conf->ReadInteger("link", "timeout", j, true); - L.Hook = Conf->ReadValue("link", "transport", j); - L.Bind = Conf->ReadValue("link", "bind", j); - L.Hidden = Conf->ReadFlag("link", "hidden", j); - - if ((!L.Hook.empty()) && (hooks.find(L.Hook.c_str()) == hooks.end())) - { - ServerInstance->Log(DEFAULT,"m_spanningtree: WARNING: Can't find transport type '%s' for link '%s' - maybe you forgot to load it BEFORE m_spanningtree in your config file? Skipping <link> tag completely.", - L.Hook.c_str(), L.Name.c_str()); - continue; - - } - - L.NextConnectTime = time(NULL) + L.AutoConnect; - /* Bugfix by brain, do not allow people to enter bad configurations */ - if (L.Name != ServerInstance->Config->ServerName) - { - if ((!L.IPAddr.empty()) && (!L.RecvPass.empty()) && (!L.SendPass.empty()) && (!L.Name.empty()) && (L.Port)) - { - ValidIPs.push_back(L.IPAddr); - - if (Allow.length()) - ValidIPs.push_back(Allow); - - /* Needs resolving */ - bool ipvalid = true; - QueryType start_type = DNS_QUERY_A; -#ifdef IPV6 - start_type = DNS_QUERY_AAAA; - if (strchr(L.IPAddr.c_str(),':')) - { - in6_addr n; - if (inet_pton(AF_INET6, L.IPAddr.c_str(), &n) < 1) - ipvalid = false; - } - else - { - in_addr n; - if (inet_aton(L.IPAddr.c_str(),&n) < 1) - ipvalid = false; - } -#else - in_addr n; - if (inet_aton(L.IPAddr.c_str(),&n) < 1) - ipvalid = false; -#endif - - if (!ipvalid) - { - try - { - bool cached; - SecurityIPResolver* sr = new SecurityIPResolver((Module*)this->Creator, this, ServerInstance, L.IPAddr, L, cached, start_type); - ServerInstance->AddResolver(sr, cached); - } - catch (...) - { - } - } - - LinkBlocks.push_back(L); - } - else - { - if (L.IPAddr.empty()) - { - ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', IP address not defined!",L.Name.c_str()); - } - else if (L.RecvPass.empty()) - { - ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', recvpass not defined!",L.Name.c_str()); - } - else if (L.SendPass.empty()) - { - ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', sendpass not defined!",L.Name.c_str()); - } - else if (L.Name.empty()) - { - ServerInstance->Log(DEFAULT,"Invalid configuration, link tag without a name!"); - } - else if (!L.Port) - { - ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', no port specified!",L.Name.c_str()); - } - } - } - else - { - ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', link tag has the same server name as the local server!",L.Name.c_str()); - } - } - DELETE(Conf); -} - -void SpanningTreeUtilities::DoFailOver(Link* x) -{ - if (x->FailOver.length()) - { - if (x->FailOver == x->Name) - { - ServerInstance->SNO->WriteToSnoMask('l',"FAILOVER: Some muppet configured the failover for server \002%s\002 to point at itself. Not following it!", x->Name.c_str()); - return; - } - Link* TryThisOne = this->FindLink(x->FailOver.c_str()); - if (TryThisOne) - { - ServerInstance->SNO->WriteToSnoMask('l',"FAILOVER: Trying failover link for \002%s\002: \002%s\002...", x->Name.c_str(), TryThisOne->Name.c_str()); - Creator->ConnectServer(TryThisOne); - } - else - { - ServerInstance->SNO->WriteToSnoMask('l',"FAILOVER: Invalid failover server specified for server \002%s\002, will not follow!", x->Name.c_str()); - } - } -} - -Link* SpanningTreeUtilities::FindLink(const std::string& name) -{ - for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++) - { - if (ServerInstance->MatchText(x->Name.c_str(), name.c_str())) - { - return &(*x); - } - } - return NULL; -} - +/* +------------------------------------+
* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
* InspIRCd: (C) 2002-2007 InspIRCd Development Team
* See: http://www.inspircd.org/wiki/index.php/Credits
*
* This program is free but copyrighted software; see
* the file COPYING for details.
*
* ---------------------------------------------------
*/
#include "inspircd.h"
#include "configreader.h"
#include "users.h"
#include "channels.h"
#include "modules.h"
#include "commands/cmd_whois.h"
#include "commands/cmd_stats.h"
#include "socket.h"
#include "wildcard.h"
#include "xline.h"
#include "transport.h"
#include "socketengine.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"
/* $ModDep: m_spanningtree/timesynctimer.h m_spanningtree/resolvers.h m_spanningtree/main.h m_spanningtree/utils.h m_spanningtree/treeserver.h m_spanningtree/link.h m_spanningtree/treesocket.h */
/** Yay for fast searches!
* This is hundreds of times faster than recursion
* or even scanning a linked list, especially when
* there are more than a few servers to deal with.
* (read as: lots).
*/
TreeServer* SpanningTreeUtilities::FindServer(const std::string &ServerName)
{
server_hash::iterator iter = serverlist.find(ServerName.c_str());
if (iter != serverlist.end())
{
return iter->second;
}
else
{
return NULL;
}
}
TreeServer* SpanningTreeUtilities::FindRemoteBurstServer(TreeServer* Server)
{
server_hash::iterator iter = RemoteServersBursting.find(Server->GetName().c_str());
if (iter != RemoteServersBursting.end())
return iter->second;
else
return NULL;
}
TreeSocket* SpanningTreeUtilities::FindBurstingServer(const std::string &ServerName)
{
std::map<irc::string,TreeSocket*>::iterator iter;
iter = burstingserverlist.find(ServerName.c_str());
if (iter != burstingserverlist.end())
{
return iter->second;
}
else
{
return NULL;
}
}
void SpanningTreeUtilities::SetRemoteBursting(TreeServer* Server, bool bursting)
{
server_hash::iterator iter = RemoteServersBursting.find(Server->GetName().c_str());
if (bursting)
{
if (iter == RemoteServersBursting.end())
RemoteServersBursting.insert(make_pair(Server->GetName(), Server));
else return;
}
else
{
if (iter != RemoteServersBursting.end())
RemoteServersBursting.erase(iter);
else return;
}
ServerInstance->Log(DEBUG,"Server %s is %sbursting nicknames", Server->GetName().c_str(), bursting ? "" : "no longer ");
}
void SpanningTreeUtilities::AddBurstingServer(const std::string &ServerName, TreeSocket* s)
{
std::map<irc::string,TreeSocket*>::iterator iter = burstingserverlist.find(ServerName.c_str());
if (iter == burstingserverlist.end())
burstingserverlist[ServerName.c_str()] = s;
}
void SpanningTreeUtilities::DelBurstingServer(TreeSocket* s)
{
for (std::map<irc::string,TreeSocket*>::iterator iter = burstingserverlist.begin(); iter != burstingserverlist.end(); iter++)
{
if (iter->second == s)
{
burstingserverlist.erase(iter);
return;
}
}
}
/** Returns the locally connected server we must route a
* message through to reach server 'ServerName'. This
* only applies to one-to-one and not one-to-many routing.
* See the comments for the constructor of TreeServer
* for more details.
*/
TreeServer* SpanningTreeUtilities::BestRouteTo(const std::string &ServerName)
{
if (ServerName.c_str() == TreeRoot->GetName())
return NULL;
TreeServer* Found = FindServer(ServerName);
if (Found)
{
return Found->GetRoute();
}
else
{
return NULL;
}
}
/** Find the first server matching a given glob mask.
* Theres no find-using-glob method of hash_map [awwww :-(]
* so instead, we iterate over the list using an iterator
* and match each one until we get a hit. Yes its slow,
* deal with it.
*/
TreeServer* SpanningTreeUtilities::FindServerMask(const std::string &ServerName)
{
for (server_hash::iterator i = serverlist.begin(); i != serverlist.end(); i++)
{
if (match(i->first.c_str(),ServerName.c_str()))
return i->second;
}
return NULL;
}
/* A convenient wrapper that returns true if a server exists */
bool SpanningTreeUtilities::IsServer(const std::string &ServerName)
{
return (FindServer(ServerName) != NULL);
}
SpanningTreeUtilities::SpanningTreeUtilities(InspIRCd* Instance, ModuleSpanningTree* C) : ServerInstance(Instance), Creator(C)
{
Bindings.clear();
lines_to_apply = 0;
this->TreeRoot = new TreeServer(this, ServerInstance, ServerInstance->Config->ServerName, ServerInstance->Config->ServerDesc);
modulelist* ml = ServerInstance->FindInterface("InspSocketHook");
/* Did we find any modules? */
if (ml)
{
/* Yes, enumerate them all to find out the hook name */
for (modulelist::iterator m = ml->begin(); m != ml->end(); m++)
{
/* Make a request to it for its name, its implementing
* InspSocketHook so we know its safe to do this
*/
std::string name = InspSocketNameRequest((Module*)Creator, *m).Send();
/* Build a map of them */
hooks[name.c_str()] = *m;
hooknames.push_back(name);
}
}
this->ReadConfiguration(true);
}
SpanningTreeUtilities::~SpanningTreeUtilities()
{
for (unsigned int i = 0; i < Bindings.size(); i++)
{
ServerInstance->SE->DelFd(Bindings[i]);
Bindings[i]->Close();
DELETE(Bindings[i]);
}
while (TreeRoot->ChildCount())
{
TreeServer* child_server = TreeRoot->GetChild(0);
if (child_server)
{
TreeSocket* sock = child_server->GetSocket();
ServerInstance->SE->DelFd(sock);
sock->Close();
DELETE(sock);
}
}
delete TreeRoot;
}
void SpanningTreeUtilities::AddThisServer(TreeServer* server, TreeServerList &list)
{
if (list.find(server) == list.end())
list[server] = server;
}
/* returns a list of DIRECT servernames for a specific channel */
void SpanningTreeUtilities::GetListOfServersForChannel(chanrec* c, TreeServerList &list, char status, const CUList &exempt_list)
{
CUList *ulist;
switch (status)
{
case '@':
ulist = c->GetOppedUsers();
break;
case '%':
ulist = c->GetHalfoppedUsers();
break;
case '+':
ulist = c->GetVoicedUsers();
break;
default:
ulist = c->GetUsers();
break;
}
for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
{
if ((i->first->GetFd() < 0) && (exempt_list.find(i->first) == exempt_list.end()))
{
TreeServer* best = this->BestRouteTo(i->first->server);
if (best)
AddThisServer(best,list);
}
}
return;
}
bool SpanningTreeUtilities::DoOneToAllButSenderRaw(const std::string &data, const std::string &omit, const std::string &prefix, const irc::string &command, std::deque<std::string> ¶ms)
{
char pfx = 0;
TreeServer* omitroute = this->BestRouteTo(omit);
if ((command == "NOTICE") || (command == "PRIVMSG"))
{
if (params.size() >= 2)
{
/* Prefixes */
if ((*(params[0].c_str()) == '@') || (*(params[0].c_str()) == '%') || (*(params[0].c_str()) == '+'))
{
pfx = params[0][0];
params[0] = params[0].substr(1, params[0].length()-1);
}
if ((*(params[0].c_str()) != '#') && (*(params[0].c_str()) != '$'))
{
// special routing for private messages/notices
userrec* d = ServerInstance->FindNick(params[0]);
if (d)
{
std::deque<std::string> par;
par.push_back(params[0]);
par.push_back(":"+params[1]);
this->DoOneToOne(prefix,command.c_str(),par,d->server);
return true;
}
}
else if (*(params[0].c_str()) == '$')
{
std::deque<std::string> par;
par.push_back(params[0]);
par.push_back(":"+params[1]);
this->DoOneToAllButSender(prefix,command.c_str(),par,omitroute->GetName());
return true;
}
else
{
chanrec* c = ServerInstance->FindChan(params[0]);
userrec* u = ServerInstance->FindNick(prefix);
if (c && u)
{
CUList elist;
TreeServerList list;
FOREACH_MOD(I_OnBuildExemptList, OnBuildExemptList((command == "PRIVMSG" ? MSG_PRIVMSG : MSG_NOTICE), c, u, pfx, elist));
GetListOfServersForChannel(c,list,pfx,elist);
for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
{
TreeSocket* Sock = i->second->GetSocket();
if ((Sock) && (i->second->GetName() != omit) && (omitroute != i->second))
{
Sock->WriteLine(data);
}
}
return true;
}
}
}
}
unsigned int items =this->TreeRoot->ChildCount();
for (unsigned int x = 0; x < items; x++)
{
TreeServer* Route = this->TreeRoot->GetChild(x);
if ((Route) && (Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
{
TreeSocket* Sock = Route->GetSocket();
if (Sock)
Sock->WriteLine(data);
}
}
return true;
}
bool SpanningTreeUtilities::DoOneToAllButSender(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string omit)
{
TreeServer* omitroute = this->BestRouteTo(omit);
std::string FullLine = ":" + prefix + " " + command;
unsigned int words = params.size();
for (unsigned int x = 0; x < words; x++)
{
FullLine = FullLine + " " + params[x];
}
unsigned int items = this->TreeRoot->ChildCount();
for (unsigned int x = 0; x < items; x++)
{
TreeServer* Route = this->TreeRoot->GetChild(x);
// Send the line IF:
// The route has a socket (its a direct connection)
// The route isnt the one to be omitted
// The route isnt the path to the one to be omitted
if ((Route) && (Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
{
TreeSocket* Sock = Route->GetSocket();
if (Sock)
Sock->WriteLine(FullLine);
}
}
return true;
}
bool SpanningTreeUtilities::DoOneToMany(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms)
{
std::string FullLine = ":" + prefix + " " + command;
unsigned int words = params.size();
for (unsigned int x = 0; x < words; x++)
{
FullLine = FullLine + " " + params[x];
}
unsigned int items = this->TreeRoot->ChildCount();
for (unsigned int x = 0; x < items; x++)
{
TreeServer* Route = this->TreeRoot->GetChild(x);
if (Route && Route->GetSocket())
{
TreeSocket* Sock = Route->GetSocket();
if (Sock)
Sock->WriteLine(FullLine);
}
}
return true;
}
bool SpanningTreeUtilities::DoOneToMany(const char* prefix, const char* command, std::deque<std::string> ¶ms)
{
std::string spfx = prefix;
std::string scmd = command;
return this->DoOneToMany(spfx, scmd, params);
}
bool SpanningTreeUtilities::DoOneToAllButSender(const char* prefix, const char* command, std::deque<std::string> ¶ms, std::string omit)
{
std::string spfx = prefix;
std::string scmd = command;
return this->DoOneToAllButSender(spfx, scmd, params, omit);
}
bool SpanningTreeUtilities::DoOneToOne(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string target)
{
TreeServer* Route = this->BestRouteTo(target);
if (Route)
{
std::string FullLine = ":" + prefix + " " + command;
unsigned int words = params.size();
for (unsigned int x = 0; x < words; x++)
{
FullLine = FullLine + " " + params[x];
}
if (Route && Route->GetSocket())
{
TreeSocket* Sock = Route->GetSocket();
if (Sock)
Sock->WriteLine(FullLine);
}
return true;
}
else
{
return false;
}
}
void SpanningTreeUtilities::RefreshIPCache()
{
ValidIPs.clear();
for (std::vector<Link>::iterator L = LinkBlocks.begin(); L != LinkBlocks.end(); L++)
{
if ((!L->IPAddr.empty()) && (!L->RecvPass.empty()) && (!L->SendPass.empty()) && (!L->Name.empty()) && (L->Port))
{
ValidIPs.push_back(L->IPAddr);
if (L->AllowMask.length())
ValidIPs.push_back(L->AllowMask);
/* Needs resolving */
bool ipvalid = true;
QueryType start_type = DNS_QUERY_A;
#ifdef IPV6
start_type = DNS_QUERY_AAAA;
if (strchr(L->IPAddr.c_str(),':'))
{
in6_addr n;
if (inet_pton(AF_INET6, L->IPAddr.c_str(), &n) < 1)
ipvalid = false;
}
else
#endif
{
in_addr n;
if (inet_aton(L->IPAddr.c_str(),&n) < 1)
ipvalid = false;
}
if (!ipvalid)
{
try
{
bool cached;
SecurityIPResolver* sr = new SecurityIPResolver((Module*)this->Creator, this, ServerInstance, L->IPAddr, *L, cached, start_type);
ServerInstance->AddResolver(sr, cached);
}
catch (...)
{
}
}
}
}
}
void SpanningTreeUtilities::ReadConfiguration(bool rebind)
{
ConfigReader* Conf = new ConfigReader(ServerInstance);
if (rebind)
{
for (int j = 0; j < Conf->Enumerate("bind"); j++)
{
std::string Type = Conf->ReadValue("bind","type",j);
std::string IP = Conf->ReadValue("bind","address",j);
std::string Port = Conf->ReadValue("bind","port",j);
std::string transport = Conf->ReadValue("bind","transport",j);
if (Type == "servers")
{
irc::portparser portrange(Port, false);
int portno = -1;
while ((portno = portrange.GetToken()))
{
if (IP == "*")
IP.clear();
if ((!transport.empty()) && (hooks.find(transport.c_str()) == hooks.end()))
{
ServerInstance->Log(DEFAULT,"m_spanningtree: WARNING: Can't find transport type '%s' for port %s:%s - maybe you forgot to load it BEFORE m_spanningtree in your config file? - Skipping this port binding", transport.c_str(), IP.c_str(), Port.c_str());
break;
}
TreeSocket* listener = new TreeSocket(this, ServerInstance, IP.c_str(), portno, true, 10, transport.empty() ? NULL : hooks[transport.c_str()]);
if (listener->GetState() == I_LISTENING)
{
ServerInstance->Log(DEFAULT,"m_spanningtree: Binding server port %s:%d successful!", IP.c_str(), portno);
Bindings.push_back(listener);
}
else
{
ServerInstance->Log(DEFAULT,"m_spanningtree: Warning: Failed to bind server port: %s:%d: %s",IP.c_str(), portno, strerror(errno));
listener->Close();
DELETE(listener);
}
}
}
}
}
FlatLinks = Conf->ReadFlag("options","flatlinks",0);
HideULines = Conf->ReadFlag("options","hideulines",0);
AnnounceTSChange = Conf->ReadFlag("options","announcets",0);
EnableTimeSync = Conf->ReadFlag("timesync","enable",0);
MasterTime = Conf->ReadFlag("timesync", "master", 0);
ChallengeResponse = !Conf->ReadFlag("options", "disablehmac", 0);
quiet_bursts = Conf->ReadFlag("options", "quietbursts", 0);
PingWarnTime = Conf->ReadInteger("options", "pingwarning", 0, true);
if (PingWarnTime < 0 || PingWarnTime > 59)
PingWarnTime = 0;
LinkBlocks.clear();
ValidIPs.clear();
for (int j = 0; j < Conf->Enumerate("link"); j++)
{
Link L;
std::string Allow = Conf->ReadValue("link", "allowmask", j);
L.Name = (Conf->ReadValue("link", "name", j)).c_str();
L.AllowMask = Allow;
L.IPAddr = Conf->ReadValue("link", "ipaddr", j);
L.FailOver = Conf->ReadValue("link", "failover", j).c_str();
L.Port = Conf->ReadInteger("link", "port", j, true);
L.SendPass = Conf->ReadValue("link", "sendpass", j);
L.RecvPass = Conf->ReadValue("link", "recvpass", j);
L.AutoConnect = Conf->ReadInteger("link", "autoconnect", j, true);
L.HiddenFromStats = Conf->ReadFlag("link", "statshidden", j);
L.Timeout = Conf->ReadInteger("link", "timeout", j, true);
L.Hook = Conf->ReadValue("link", "transport", j);
L.Bind = Conf->ReadValue("link", "bind", j);
L.Hidden = Conf->ReadFlag("link", "hidden", j);
if ((!L.Hook.empty()) && (hooks.find(L.Hook.c_str()) == hooks.end()))
{
ServerInstance->Log(DEFAULT,"m_spanningtree: WARNING: Can't find transport type '%s' for link '%s' - maybe you forgot to load it BEFORE m_spanningtree in your config file? Skipping <link> tag completely.",
L.Hook.c_str(), L.Name.c_str());
continue;
}
L.NextConnectTime = time(NULL) + L.AutoConnect;
/* Bugfix by brain, do not allow people to enter bad configurations */
if (L.Name != ServerInstance->Config->ServerName)
{
if ((!L.IPAddr.empty()) && (!L.RecvPass.empty()) && (!L.SendPass.empty()) && (!L.Name.empty()) && (L.Port))
{
ValidIPs.push_back(L.IPAddr);
if (Allow.length())
ValidIPs.push_back(Allow);
/* Needs resolving */
bool ipvalid = true;
QueryType start_type = DNS_QUERY_A;
#ifdef IPV6
start_type = DNS_QUERY_AAAA;
if (strchr(L.IPAddr.c_str(),':'))
{
in6_addr n;
if (inet_pton(AF_INET6, L.IPAddr.c_str(), &n) < 1)
ipvalid = false;
}
else
{
in_addr n;
if (inet_aton(L.IPAddr.c_str(),&n) < 1)
ipvalid = false;
}
#else
in_addr n;
if (inet_aton(L.IPAddr.c_str(),&n) < 1)
ipvalid = false;
#endif
if (!ipvalid)
{
try
{
bool cached;
SecurityIPResolver* sr = new SecurityIPResolver((Module*)this->Creator, this, ServerInstance, L.IPAddr, L, cached, start_type);
ServerInstance->AddResolver(sr, cached);
}
catch (...)
{
}
}
LinkBlocks.push_back(L);
}
else
{
if (L.IPAddr.empty())
{
ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', IP address not defined!",L.Name.c_str());
}
else if (L.RecvPass.empty())
{
ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', recvpass not defined!",L.Name.c_str());
}
else if (L.SendPass.empty())
{
ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', sendpass not defined!",L.Name.c_str());
}
else if (L.Name.empty())
{
ServerInstance->Log(DEFAULT,"Invalid configuration, link tag without a name!");
}
else if (!L.Port)
{
ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', no port specified!",L.Name.c_str());
}
}
}
else
{
ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', link tag has the same server name as the local server!",L.Name.c_str());
}
}
DELETE(Conf);
}
void SpanningTreeUtilities::DoFailOver(Link* x)
{
if (x->FailOver.length())
{
if (x->FailOver == x->Name)
{
ServerInstance->SNO->WriteToSnoMask('l',"FAILOVER: Some muppet configured the failover for server \002%s\002 to point at itself. Not following it!", x->Name.c_str());
return;
}
Link* TryThisOne = this->FindLink(x->FailOver.c_str());
if (TryThisOne)
{
ServerInstance->SNO->WriteToSnoMask('l',"FAILOVER: Trying failover link for \002%s\002: \002%s\002...", x->Name.c_str(), TryThisOne->Name.c_str());
Creator->ConnectServer(TryThisOne);
}
else
{
ServerInstance->SNO->WriteToSnoMask('l',"FAILOVER: Invalid failover server specified for server \002%s\002, will not follow!", x->Name.c_str());
}
}
}
Link* SpanningTreeUtilities::FindLink(const std::string& name)
{
for (std::vector<Link>::iterator x = LinkBlocks.begin(); x < LinkBlocks.end(); x++)
{
if (ServerInstance->MatchText(x->Name.c_str(), name.c_str()))
{
return &(*x);
}
}
return NULL;
}
\ No newline at end of file |