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-rw-r--r--src/modules/m_spanningtree/handshaketimer.cpp43
-rw-r--r--src/modules/m_spanningtree/handshaketimer.h24
-rw-r--r--src/modules/m_spanningtree/link.h26
-rw-r--r--src/modules/m_spanningtree/main.cpp2909
-rw-r--r--src/modules/m_spanningtree/main.h98
-rw-r--r--src/modules/m_spanningtree/resolvers.h43
-rw-r--r--src/modules/m_spanningtree/treeserver.cpp297
-rw-r--r--src/modules/m_spanningtree/treeserver.h100
-rw-r--r--src/modules/m_spanningtree/treesocket.cpp2878
-rw-r--r--src/modules/m_spanningtree/treesocket.h278
-rw-r--r--src/modules/m_spanningtree/utils.cpp497
11 files changed, 4284 insertions, 2909 deletions
diff --git a/src/modules/m_spanningtree/handshaketimer.cpp b/src/modules/m_spanningtree/handshaketimer.cpp
new file mode 100644
index 000000000..fcd698b3f
--- /dev/null
+++ b/src/modules/m_spanningtree/handshaketimer.cpp
@@ -0,0 +1,43 @@
+#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 "inspircd.h"
+#include "wildcard.h"
+#include "xline.h"
+#include "transport.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/handshaketimer.h"
+
+HandshakeTimer::HandshakeTimer(InspIRCd* Inst, TreeSocket* s, Link* l, SpanningTreeUtilities* u) : InspTimer(1, time(NULL)), Instance(Inst), sock(s), lnk(l), Utils(u)
+{
+ thefd = sock->GetFd();
+}
+
+void HandshakeTimer::Tick(time_t TIME)
+{
+ if (Instance->SE->GetRef(thefd) == sock)
+ {
+ if (sock->GetHook() && InspSocketHSCompleteRequest(sock, (Module*)Utils->Creator, sock->GetHook()).Send())
+ {
+ InspSocketAttachCertRequest(sock, (Module*)Utils->Creator, sock->GetHook()).Send();
+ sock->SendCapabilities();
+ if (sock->GetLinkState() == CONNECTING)
+ {
+ sock->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+lnk->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
+ }
+ }
+ else
+ {
+ Instance->Timers->AddTimer(new HandshakeTimer(Instance, sock, lnk, Utils));
+ }
+ }
+}
diff --git a/src/modules/m_spanningtree/handshaketimer.h b/src/modules/m_spanningtree/handshaketimer.h
new file mode 100644
index 000000000..3a1682257
--- /dev/null
+++ b/src/modules/m_spanningtree/handshaketimer.h
@@ -0,0 +1,24 @@
+#ifndef __HANDSHAKE_TIMER_H__
+#define __HANDSHAKE_TIMER_H__
+
+#include "inspircd.h"
+#include "timer.h"
+
+class SpanningTreeUtilities;
+class TreeSocket;
+class Link;
+
+class HandshakeTimer : public InspTimer
+{
+ private:
+ InspIRCd* Instance;
+ TreeSocket* sock;
+ Link* lnk;
+ SpanningTreeUtilities* Utils;
+ int thefd;
+ public:
+ HandshakeTimer(InspIRCd* Inst, TreeSocket* s, Link* l, SpanningTreeUtilities* u);
+ virtual void Tick(time_t TIME);
+};
+
+#endif
diff --git a/src/modules/m_spanningtree/link.h b/src/modules/m_spanningtree/link.h
new file mode 100644
index 000000000..f44953ab7
--- /dev/null
+++ b/src/modules/m_spanningtree/link.h
@@ -0,0 +1,26 @@
+#ifndef __LINK_H__
+#define __LINK_H__
+
+/** The Link class might as well be a struct,
+ * but this is C++ and we don't believe in structs (!).
+ * It holds the entire information of one <link>
+ * tag from the main config file. We maintain a list
+ * of them, and populate the list on rehash/load.
+ */
+class Link : public classbase
+{
+ public:
+ irc::string Name;
+ std::string IPAddr;
+ int Port;
+ std::string SendPass;
+ std::string RecvPass;
+ unsigned long AutoConnect;
+ time_t NextConnectTime;
+ bool HiddenFromStats;
+ std::string FailOver;
+ std::string Hook;
+ int Timeout;
+};
+
+#endif
diff --git a/src/modules/m_spanningtree/main.cpp b/src/modules/m_spanningtree/main.cpp
index da0e61786..af827fa96 100644
--- a/src/modules/m_spanningtree/main.cpp
+++ b/src/modules/m_spanningtree/main.cpp
@@ -31,34 +31,6 @@
#include "m_spanningtree/link.h"
#include "m_spanningtree/treesocket.h"
-/** If you make a change which breaks the protocol, increment this.
- * If you completely change the protocol, completely change the number.
- *
- * IMPORTANT: If you make changes, document your changes here, without fail:
- * http://www.inspircd.org/wiki/List_of_protocol_changes_between_versions
- *
- * Failure to document your protocol changes will result in a painfully
- * painful death by pain. You have been warned.
- */
-const long ProtocolVersion = 1103;
-
-/* Foward declarations */
-class ModuleSpanningTree;
-
-class HandshakeTimer : public InspTimer
-{
- private:
- InspIRCd* Instance;
- TreeSocket* sock;
- Link* lnk;
- SpanningTreeUtilities* Utils;
- int thefd;
- public:
- HandshakeTimer(InspIRCd* Inst, TreeSocket* s, Link* l, SpanningTreeUtilities* u);
- virtual void Tick(time_t TIME);
-};
-
-
/** Handle /RCONNECT
*/
class cmd_rconnect : public command_t
@@ -100,2863 +72,6 @@ class cmd_rconnect : public command_t
}
};
-
-/** Because most of the I/O gubbins are encapsulated within
- * InspSocket, we just call the superclass constructor for
- * most of the action, and append a few of our own values
- * to it.
- */
-TreeSocket::TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime, Module* HookMod)
- : InspSocket(SI, host, port, listening, maxtime), Utils(Util), Hook(HookMod)
-{
- myhost = host;
- this->LinkState = LISTENER;
- if (listening && Hook)
- InspSocketHookRequest(this, (Module*)Utils->Creator, Hook).Send();
-}
-
-TreeSocket::TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime, std::string ServerName, Module* HookMod)
- : InspSocket(SI, host, port, listening, maxtime), Utils(Util), Hook(HookMod)
-{
- myhost = ServerName;
- this->LinkState = CONNECTING;
- if (Hook)
- InspSocketHookRequest(this, (Module*)Utils->Creator, Hook).Send();
-}
-
-/** When a listening socket gives us a new file descriptor,
- * we must associate it with a socket without creating a new
- * connection. This constructor is used for this purpose.
- */
-TreeSocket::TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, int newfd, char* ip, Module* HookMod)
- : InspSocket(SI, newfd, ip), Utils(Util), Hook(HookMod)
-{
- this->LinkState = WAIT_AUTH_1;
- /* If we have a transport module hooked to the parent, hook the same module to this
- * socket, and set a timer waiting for handshake before we send CAPAB etc.
- */
- if (Hook)
- {
- InspSocketHookRequest(this, (Module*)Utils->Creator, Hook).Send();
- Instance->Timers->AddTimer(new HandshakeTimer(Instance, this, &(Utils->LinkBlocks[0]), this->Utils));
- }
- else
- {
- /* Otherwise, theres no lower layer transport in plain TCP/IP,
- * so just send the capabilities right now.
- */
- this->SendCapabilities();
- }
-}
-
-ServerState TreeSocket::GetLinkState()
-{
- return this->LinkState;
-}
-
-Module* TreeSocket::GetHook()
-{
- return this->Hook;
-}
-
-TreeSocket::~TreeSocket()
-{
- if (Hook)
- InspSocketUnhookRequest(this, (Module*)Utils->Creator, Hook).Send();
-}
-
-/** When an outbound connection finishes connecting, we receive
- * this event, and must send our SERVER string to the other
- * side. If the other side is happy, as outlined in the server
- * to server docs on the inspircd.org site, the other side
- * will then send back its own server string.
- */
-bool TreeSocket::OnConnected()
-{
- if (this->LinkState == CONNECTING)
- {
- /* we do not need to change state here. */
- for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
- {
- if (x->Name == this->myhost)
- {
- this->Instance->SNO->WriteToSnoMask('l',"Connection to \2"+myhost+"\2["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] started.");
- if (Hook)
- {
- InspSocketHookRequest(this, (Module*)Utils->Creator, Hook).Send();
- this->Instance->SNO->WriteToSnoMask('l',"Connection to \2"+myhost+"\2["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] using transport \2"+x->Hook+"\2");
- }
- else
- this->SendCapabilities();
- /* found who we're supposed to be connecting to, send the neccessary gubbins. */
- if (Hook)
- Instance->Timers->AddTimer(new HandshakeTimer(Instance, this, &(*x), this->Utils));
- else
- this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+x->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
- return true;
- }
- }
- }
- /* There is a (remote) chance that between the /CONNECT and the connection
- * being accepted, some muppet has removed the <link> block and rehashed.
- * If that happens the connection hangs here until it's closed. Unlikely
- * and rather harmless.
- */
- this->Instance->SNO->WriteToSnoMask('l',"Connection to \2"+myhost+"\2 lost link tag(!)");
- return true;
-}
-
-void TreeSocket::OnError(InspSocketError e)
-{
- /* We don't handle this method, because all our
- * dirty work is done in OnClose() (see below)
- * which is still called on error conditions too.
- */
- if (e == I_ERR_CONNECT)
- {
- this->Instance->SNO->WriteToSnoMask('l',"Connection failed: Connection to \002"+myhost+"\002 refused");
- Link* MyLink = Utils->FindLink(myhost);
- if (MyLink)
- Utils->DoFailOver(MyLink);
- }
-}
-
-int TreeSocket::OnDisconnect()
-{
- /* For the same reason as above, we don't
- * handle OnDisconnect()
- */
- return true;
-}
-
-/** Recursively send the server tree with distances as hops.
- * 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.
- */
-void TreeSocket::SendServers(TreeServer* Current, TreeServer* s, int hops)
-{
- char command[1024];
- for (unsigned int q = 0; q < Current->ChildCount(); q++)
- {
- TreeServer* recursive_server = Current->GetChild(q);
- if (recursive_server != s)
- {
- snprintf(command,1024,":%s SERVER %s * %d :%s",Current->GetName().c_str(),recursive_server->GetName().c_str(),hops,recursive_server->GetDesc().c_str());
- this->WriteLine(command);
- this->WriteLine(":"+recursive_server->GetName()+" VERSION :"+recursive_server->GetVersion());
- /* down to next level */
- this->SendServers(recursive_server, s, hops+1);
- }
- }
-}
-
-std::string TreeSocket::MyCapabilities()
-{
- std::vector<std::string> modlist;
- std::string capabilities = "";
- for (int i = 0; i <= this->Instance->GetModuleCount(); i++)
- {
- if (this->Instance->modules[i]->GetVersion().Flags & VF_COMMON)
- modlist.push_back(this->Instance->Config->module_names[i]);
- }
- sort(modlist.begin(),modlist.end());
- for (unsigned int i = 0; i < modlist.size(); i++)
- {
- if (i)
- capabilities = capabilities + ",";
- capabilities = capabilities + modlist[i];
- }
- return capabilities;
-}
-
-void TreeSocket::SendCapabilities()
-{
- irc::commasepstream modulelist(MyCapabilities());
- this->WriteLine("CAPAB START");
-
- /* Send module names, split at 509 length */
- std::string item = "*";
- std::string line = "CAPAB MODULES ";
- while ((item = modulelist.GetToken()) != "")
- {
- if (line.length() + item.length() + 1 > 509)
- {
- this->WriteLine(line);
- line = "CAPAB MODULES ";
- }
-
- if (line != "CAPAB MODULES ")
- line.append(",");
-
- line.append(item);
- }
- if (line != "CAPAB MODULES ")
- this->WriteLine(line);
-
- int ip6 = 0;
- int ip6support = 0;
-#ifdef IPV6
- ip6 = 1;
-#endif
-#ifdef SUPPORT_IP6LINKS
- ip6support = 1;
-#endif
- this->WriteLine("CAPAB CAPABILITIES :NICKMAX="+ConvToStr(NICKMAX)+" HALFOP="+ConvToStr(this->Instance->Config->AllowHalfop)+" CHANMAX="+ConvToStr(CHANMAX)+" MAXMODES="+ConvToStr(MAXMODES)+" IDENTMAX="+ConvToStr(IDENTMAX)+" MAXQUIT="+ConvToStr(MAXQUIT)+" MAXTOPIC="+ConvToStr(MAXTOPIC)+" MAXKICK="+ConvToStr(MAXKICK)+" MAXGECOS="+ConvToStr(MAXGECOS)+" MAXAWAY="+ConvToStr(MAXAWAY)+" IP6NATIVE="+ConvToStr(ip6)+" IP6SUPPORT="+ConvToStr(ip6support)+" PROTOCOL="+ConvToStr(ProtocolVersion));
-
- this->WriteLine("CAPAB END");
-}
-
-/* Check a comma seperated list for an item */
-bool TreeSocket::HasItem(const std::string &list, const std::string &item)
-{
- irc::commasepstream seplist(list);
- std::string item2 = "*";
- while ((item2 = seplist.GetToken()) != "")
- {
- if (item2 == item)
- return true;
- }
- return false;
-}
-
-/* Isolate and return the elements that are different between two comma seperated lists */
-std::string TreeSocket::ListDifference(const std::string &one, const std::string &two)
-{
- irc::commasepstream list_one(one);
- std::string item = "*";
- std::string result = "";
- while ((item = list_one.GetToken()) != "")
- {
- if (!HasItem(two, item))
- {
- result.append(" ");
- result.append(item);
- }
- }
- return result;
-}
-
-bool TreeSocket::Capab(const std::deque<std::string> &params)
-{
- if (params.size() < 1)
- {
- this->WriteLine("ERROR :Invalid number of parameters for CAPAB - Mismatched version");
- return false;
- }
- if (params[0] == "START")
- {
- this->ModuleList = "";
- this->CapKeys.clear();
- }
- else if (params[0] == "END")
- {
- std::string reason = "";
- int ip6support = 0;
-#ifdef SUPPORT_IP6LINKS
- ip6support = 1;
-#endif
- /* Compare ModuleList and check CapKeys...
- * Maybe this could be tidier? -- Brain
- */
- if ((this->ModuleList != this->MyCapabilities()) && (this->ModuleList.length()))
- {
- std::string diff = ListDifference(this->ModuleList, this->MyCapabilities());
- if (!diff.length())
- {
- diff = "your server:" + ListDifference(this->MyCapabilities(), this->ModuleList);
- }
- else
- {
- diff = "this server:" + diff;
- }
- if (diff.length() == 12)
- reason = "Module list in CAPAB is not alphabetically ordered, cannot compare lists.";
- else
- reason = "Modules loaded on these servers are not correctly matched, these modules are not loaded on " + diff;
- }
- if (((this->CapKeys.find("IP6SUPPORT") == this->CapKeys.end()) && (ip6support)) || ((this->CapKeys.find("IP6SUPPORT") != this->CapKeys.end()) && (this->CapKeys.find("IP6SUPPORT")->second != ConvToStr(ip6support))))
- reason = "We don't both support linking to IPV6 servers";
- if (((this->CapKeys.find("IP6NATIVE") != this->CapKeys.end()) && (this->CapKeys.find("IP6NATIVE")->second == "1")) && (!ip6support))
- reason = "The remote server is IPV6 native, and we don't support linking to IPV6 servers";
- if (((this->CapKeys.find("NICKMAX") == this->CapKeys.end()) || ((this->CapKeys.find("NICKMAX") != this->CapKeys.end()) && (this->CapKeys.find("NICKMAX")->second != ConvToStr(NICKMAX)))))
- reason = "Maximum nickname lengths differ or remote nickname length not specified";
- if (((this->CapKeys.find("PROTOCOL") == this->CapKeys.end()) || ((this->CapKeys.find("PROTOCOL") != this->CapKeys.end()) && (this->CapKeys.find("PROTOCOL")->second != ConvToStr(ProtocolVersion)))))
- {
- if (this->CapKeys.find("PROTOCOL") != this->CapKeys.end())
- {
- reason = "Mismatched protocol versions "+this->CapKeys.find("PROTOCOL")->second+" and "+ConvToStr(ProtocolVersion);
- }
- else
- {
- reason = "Protocol version not specified";
- }
- }
- if (((this->CapKeys.find("HALFOP") == this->CapKeys.end()) && (Instance->Config->AllowHalfop)) || ((this->CapKeys.find("HALFOP") != this->CapKeys.end()) && (this->CapKeys.find("HALFOP")->second != ConvToStr(Instance->Config->AllowHalfop))))
- reason = "We don't both have halfop support enabled/disabled identically";
- if (((this->CapKeys.find("IDENTMAX") == this->CapKeys.end()) || ((this->CapKeys.find("IDENTMAX") != this->CapKeys.end()) && (this->CapKeys.find("IDENTMAX")->second != ConvToStr(IDENTMAX)))))
- reason = "Maximum ident lengths differ or remote ident length not specified";
- if (((this->CapKeys.find("CHANMAX") == this->CapKeys.end()) || ((this->CapKeys.find("CHANMAX") != this->CapKeys.end()) && (this->CapKeys.find("CHANMAX")->second != ConvToStr(CHANMAX)))))
- reason = "Maximum channel lengths differ or remote channel length not specified";
- if (((this->CapKeys.find("MAXMODES") == this->CapKeys.end()) || ((this->CapKeys.find("MAXMODES") != this->CapKeys.end()) && (this->CapKeys.find("MAXMODES")->second != ConvToStr(MAXMODES)))))
- reason = "Maximum modes per line differ or remote modes per line not specified";
- if (((this->CapKeys.find("MAXQUIT") == this->CapKeys.end()) || ((this->CapKeys.find("MAXQUIT") != this->CapKeys.end()) && (this->CapKeys.find("MAXQUIT")->second != ConvToStr(MAXQUIT)))))
- reason = "Maximum quit lengths differ or remote quit length not specified";
- if (((this->CapKeys.find("MAXTOPIC") == this->CapKeys.end()) || ((this->CapKeys.find("MAXTOPIC") != this->CapKeys.end()) && (this->CapKeys.find("MAXTOPIC")->second != ConvToStr(MAXTOPIC)))))
- reason = "Maximum topic lengths differ or remote topic length not specified";
- if (((this->CapKeys.find("MAXKICK") == this->CapKeys.end()) || ((this->CapKeys.find("MAXKICK") != this->CapKeys.end()) && (this->CapKeys.find("MAXKICK")->second != ConvToStr(MAXKICK)))))
- reason = "Maximum kick lengths differ or remote kick length not specified";
- if (((this->CapKeys.find("MAXGECOS") == this->CapKeys.end()) || ((this->CapKeys.find("MAXGECOS") != this->CapKeys.end()) && (this->CapKeys.find("MAXGECOS")->second != ConvToStr(MAXGECOS)))))
- reason = "Maximum GECOS (fullname) lengths differ or remote GECOS length not specified";
- if (((this->CapKeys.find("MAXAWAY") == this->CapKeys.end()) || ((this->CapKeys.find("MAXAWAY") != this->CapKeys.end()) && (this->CapKeys.find("MAXAWAY")->second != ConvToStr(MAXAWAY)))))
- reason = "Maximum awaymessage lengths differ or remote awaymessage length not specified";
- if (reason.length())
- {
- this->WriteLine("ERROR :CAPAB negotiation failed: "+reason);
- return false;
- }
- }
- else if ((params[0] == "MODULES") && (params.size() == 2))
- {
- if (!this->ModuleList.length())
- {
- this->ModuleList.append(params[1]);
- }
- else
- {
- this->ModuleList.append(",");
- this->ModuleList.append(params[1]);
- }
- }
- else if ((params[0] == "CAPABILITIES") && (params.size() == 2))
- {
- irc::tokenstream capabs(params[1]);
- std::string item = "*";
- while ((item = capabs.GetToken()) != "")
- {
- /* Process each key/value pair */
- std::string::size_type equals = item.rfind('=');
- if (equals != std::string::npos)
- {
- std::string var = item.substr(0, equals);
- std::string value = item.substr(equals+1, item.length());
- CapKeys[var] = value;
- }
- }
- }
- return true;
-}
-
-/** This function forces this server to quit, removing this server
- * and any users on it (and servers and users below that, etc etc).
- * It's very slow and pretty clunky, but luckily unless your network
- * is having a REAL bad hair day, this function shouldnt be called
- * too many times a month ;-)
- */
-void TreeSocket::SquitServer(std::string &from, TreeServer* Current)
-{
- /* recursively squit the servers attached to 'Current'.
- * We're going backwards so we don't remove users
- * while we still need them ;)
- */
- for (unsigned int q = 0; q < Current->ChildCount(); q++)
- {
- TreeServer* recursive_server = Current->GetChild(q);
- this->SquitServer(from,recursive_server);
- }
- /* Now we've whacked the kids, whack self */
- num_lost_servers++;
- num_lost_users += Current->QuitUsers(from);
-}
-
-/** This is a wrapper function for SquitServer above, which
- * does some validation first and passes on the SQUIT to all
- * other remaining servers.
- */
-void TreeSocket::Squit(TreeServer* Current, const std::string &reason)
-{
- if ((Current) && (Current != Utils->TreeRoot))
- {
- Event rmode((char*)Current->GetName().c_str(), (Module*)Utils->Creator, "lost_server");
- rmode.Send(Instance);
-
- std::deque<std::string> params;
- params.push_back(Current->GetName());
- params.push_back(":"+reason);
- Utils->DoOneToAllButSender(Current->GetParent()->GetName(),"SQUIT",params,Current->GetName());
- if (Current->GetParent() == Utils->TreeRoot)
- {
- this->Instance->WriteOpers("Server \002"+Current->GetName()+"\002 split: "+reason);
- }
- else
- {
- this->Instance->WriteOpers("Server \002"+Current->GetName()+"\002 split from server \002"+Current->GetParent()->GetName()+"\002 with reason: "+reason);
- }
- num_lost_servers = 0;
- num_lost_users = 0;
- std::string from = Current->GetParent()->GetName()+" "+Current->GetName();
- SquitServer(from, Current);
- Current->Tidy();
- Current->GetParent()->DelChild(Current);
- DELETE(Current);
- this->Instance->WriteOpers("Netsplit complete, lost \002%d\002 users on \002%d\002 servers.", num_lost_users, num_lost_servers);
- }
- else
- {
- Instance->Log(DEFAULT,"Squit from unknown server");
- }
-}
-
-/** FMODE command - server mode with timestamp checks */
-bool TreeSocket::ForceMode(const std::string &source, std::deque<std::string> &params)
-{
- /* Chances are this is a 1.0 FMODE without TS */
- if (params.size() < 3)
- {
- /* No modes were in the command, probably a channel with no modes set on it */
- return true;
- }
-
- bool smode = false;
- std::string sourceserv;
- /* Are we dealing with an FMODE from a user, or from a server? */
- userrec* who = this->Instance->FindNick(source);
- if (who)
- {
- /* FMODE from a user, set sourceserv to the users server name */
- sourceserv = who->server;
- }
- else
- {
- /* FMODE from a server, create a fake user to receive mode feedback */
- who = new userrec(this->Instance);
- who->SetFd(FD_MAGIC_NUMBER);
- smode = true; /* Setting this flag tells us we should free the userrec later */
- sourceserv = source; /* Set sourceserv to the actual source string */
- }
- const char* modelist[64];
- time_t TS = 0;
- int n = 0;
- memset(&modelist,0,sizeof(modelist));
- for (unsigned int q = 0; (q < params.size()) && (q < 64); q++)
- {
- if (q == 1)
- {
- /* The timestamp is in this position.
- * We don't want to pass that up to the
- * server->client protocol!
- */
- TS = atoi(params[q].c_str());
- }
- else
- {
- /* Everything else is fine to append to the modelist */
- modelist[n++] = params[q].c_str();
- }
-
- }
- /* Extract the TS value of the object, either userrec or chanrec */
- userrec* dst = this->Instance->FindNick(params[0]);
- chanrec* chan = NULL;
- time_t ourTS = 0;
- if (dst)
- {
- ourTS = dst->age;
- }
- else
- {
- chan = this->Instance->FindChan(params[0]);
- if (chan)
- {
- ourTS = chan->age;
- }
- else
- /* Oops, channel doesnt exist! */
- return true;
- }
-
- /* TS is equal: Merge the mode changes, use voooodoooooo on modes
- * with parameters.
- */
- if (TS == ourTS)
- {
- ModeHandler* mh = NULL;
- unsigned long paramptr = 3;
- std::string to_bounce = "";
- std::string to_keep = "";
- std::vector<std::string> params_to_keep;
- std::string params_to_bounce = "";
- bool adding = true;
- char cur_change = 1;
- char old_change = 0;
- char old_bounce_change = 0;
- /* Merge modes, basically do special stuff to mode with params */
- for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
- {
- switch (*x)
- {
- case '-':
- adding = false;
- break;
- case '+':
- adding = true;
- break;
- default:
- if (adding)
- {
- /* We only care about whats being set,
- * not whats being unset
- */
- mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
- if ((mh) && (mh->GetNumParams(adding) > 0) && (!mh->IsListMode()))
- {
- /* We only want to do special things to
- * modes with parameters, we are going to rewrite
- * those parameters
- */
- ModePair ret;
- adding ? cur_change = '+' : cur_change = '-';
- ret = mh->ModeSet(smode ? NULL : who, dst, chan, params[paramptr]);
- /* The mode is set here, check which we should keep */
- if (ret.first)
- {
- bool which_to_keep = mh->CheckTimeStamp(TS, ourTS, params[paramptr], ret.second, chan);
- if (which_to_keep == true)
- {
- /* Keep ours, bounce theirs:
- * Send back ours to them and
- * drop their mode changs
- */
- adding ? cur_change = '+' : cur_change = '-';
- if (cur_change != old_bounce_change)
- to_bounce += cur_change;
- to_bounce += *x;
- old_bounce_change = cur_change;
- if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
- params_to_bounce.append(" ").append(ret.second);
- }
- else
- {
- /* Keep theirs: Accept their mode change,
- * do nothing else
- */
- adding ? cur_change = '+' : cur_change = '-';
- if (cur_change != old_change)
- to_keep += cur_change;
- to_keep += *x;
- old_change = cur_change;
- if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
- params_to_keep.push_back(params[paramptr]);
- }
- }
- else
- {
- /* Mode isnt set here, we want it */
- adding ? cur_change = '+' : cur_change = '-';
- if (cur_change != old_change)
- to_keep += cur_change;
- to_keep += *x;
- old_change = cur_change;
- if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
- params_to_keep.push_back(params[paramptr]);
- }
- paramptr++;
- }
- else
- {
- mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
- if (mh)
- {
- adding ? cur_change = '+' : cur_change = '-';
-
- /* Just keep this, safe to merge with no checks
- * it has no parameters
- */
-
- if (cur_change != old_change)
- to_keep += cur_change;
- to_keep += *x;
- old_change = cur_change;
-
- if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
- {
- params_to_keep.push_back(params[paramptr++]);
- }
- }
- }
- }
- else
- {
- mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
- if (mh)
- {
- /* Taking a mode away */
- adding ? cur_change = '+' : cur_change = '-';
- if (cur_change != old_change)
- to_keep += cur_change;
- to_keep += *x;
- old_change = cur_change;
- if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
- params_to_keep.push_back(params[paramptr++]);
- }
- }
- break;
- }
- }
- if (to_bounce.length())
- {
- std::deque<std::string> newparams;
- newparams.push_back(params[0]);
- newparams.push_back(ConvToStr(ourTS));
- newparams.push_back(to_bounce+params_to_bounce);
- Utils->DoOneToOne(this->Instance->Config->ServerName,"FMODE",newparams,sourceserv);
- }
- if (to_keep.length())
- {
- unsigned int n = 2;
- unsigned int q = 0;
- modelist[0] = params[0].c_str();
- modelist[1] = to_keep.c_str();
- if (params_to_keep.size() > 0)
- {
- for (q = 0; (q < params_to_keep.size()) && (q < 64); q++)
- {
- modelist[n++] = params_to_keep[q].c_str();
- }
- }
- if (smode)
- {
- this->Instance->SendMode(modelist, n, who);
- }
- else
- {
- this->Instance->CallCommandHandler("MODE", modelist, n, who);
- }
- /* HOT POTATO! PASS IT ON! */
- Utils->DoOneToAllButSender(source,"FMODE",params,sourceserv);
- }
- }
- else
- /* U-lined servers always win regardless of their TS */
- if ((TS > ourTS) && (!this->Instance->ULine(source.c_str())))
- {
- /* Bounce the mode back to its sender.* We use our lower TS, so the other end
- * SHOULD accept it, if its clock is right.
- *
- * NOTE: We should check that we arent bouncing anything thats already set at this end.
- * If we are, bounce +ourmode to 'reinforce' it. This prevents desyncs.
- * e.g. They send +l 50, we have +l 10 set. rather than bounce -l 50, we bounce +l 10.
- *
- * Thanks to jilles for pointing out this one-hell-of-an-issue before i even finished
- * writing the code. It took me a while to come up with this solution.
- *
- * XXX: BE SURE YOU UNDERSTAND THIS CODE FULLY BEFORE YOU MESS WITH IT.
- */
- std::deque<std::string> newparams; /* New parameter list we send back */
- newparams.push_back(params[0]); /* Target, user or channel */
- newparams.push_back(ConvToStr(ourTS)); /* Timestamp value of the target */
- newparams.push_back(""); /* This contains the mode string. For now
- * it's empty, we fill it below.
- */
- /* Intelligent mode bouncing. Don't just invert, reinforce any modes which are already
- * set to avoid a desync here.
- */
- std::string modebounce = "";
- bool adding = true;
- unsigned int t = 3;
- ModeHandler* mh = NULL;
- char cur_change = 1;
- char old_change = 0;
- for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
- {
- /* Iterate over all mode chars in the sent set */
- switch (*x)
- {
- /* Adding or subtracting modes? */
- case '-':
- adding = false;
- break;
- case '+':
- adding = true;
- break;
- default:
- /* Find the mode handler for this mode */
- mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
- /* Got a mode handler?
- * This also prevents us bouncing modes we have no handler for.
- */
- if (mh)
- {
- ModePair ret;
- std::string p = "";
- /* Does the mode require a parameter right now?
- * If it does, fetch it if we can
- */
- if ((mh->GetNumParams(adding) > 0) && (t < params.size()))
- p = params[t++];
- /* Call the ModeSet method to determine if its set with the
- * given parameter here or not.
- */
- ret = mh->ModeSet(smode ? NULL : who, dst, chan, p);
- /* XXX: Really. Dont ask.
- * Determine from if its set combined with what the current
- * 'state' is (adding or not) as to wether we should 'invert'
- * or 'reinforce' the mode change
- */
- (!ret.first ? (adding ? cur_change = '-' : cur_change = '+') : (!adding ? cur_change = '-' : cur_change = '+'));
- /* Quickly determine if we have 'flipped' from + to -,
- * or - to +, to prevent unneccessary +/- chars in the
- * output string that waste bandwidth
- */
- if (cur_change != old_change)
- modebounce += cur_change;
- old_change = cur_change;
- /* Add the mode character to the output string */
- modebounce += mh->GetModeChar();
- /* We got a parameter back from ModeHandler::ModeSet,
- * are we supposed to be sending one out right now?
- */
- if (ret.second.length())
- {
- if (mh->GetNumParams(cur_change == '+') > 0)
- /* Yes we're supposed to be sending out
- * the parameter. Make sure it goes
- */
- newparams.push_back(ret.second);
- }
- }
- break;
- }
- }
-
- /* Update the parameters for FMODE with the new 'bounced' string */
- newparams[2] = modebounce;
- /* Only send it back the way it came, no need to send it anywhere else */
- Utils->DoOneToOne(this->Instance->Config->ServerName,"FMODE",newparams,sourceserv);
- }
- else
- {
- /* The server was ulined, but something iffy is up with the TS.
- * Sound the alarm bells!
- */
- if ((this->Instance->ULine(sourceserv.c_str())) && (TS > ourTS))
- {
- this->Instance->WriteOpers("\2WARNING!\2 U-Lined server '%s' has bad TS for '%s' (accepted change): \2SYNC YOUR CLOCKS\2 to avoid this notice",sourceserv.c_str(),params[0].c_str());
- }
- /* Allow the mode, route it to either server or user command handling */
- if (smode)
- this->Instance->SendMode(modelist,n,who);
- else
- this->Instance->CallCommandHandler("MODE", modelist, n, who);
- /* HOT POTATO! PASS IT ON! */
- Utils->DoOneToAllButSender(source,"FMODE",params,sourceserv);
- }
- /* Are we supposed to free the userrec? */
- if (smode)
- DELETE(who);
-
- return true;
-}
-
-/** FTOPIC command */
-bool TreeSocket::ForceTopic(const std::string &source, std::deque<std::string> &params)
-{
- if (params.size() != 4)
- return true;
- time_t ts = atoi(params[1].c_str());
- std::string nsource = source;
- chanrec* c = this->Instance->FindChan(params[0]);
- if (c)
- {
- if ((ts >= c->topicset) || (!*c->topic))
- {
- std::string oldtopic = c->topic;
- strlcpy(c->topic,params[3].c_str(),MAXTOPIC);
- strlcpy(c->setby,params[2].c_str(),NICKMAX-1);
- c->topicset = ts;
- /* if the topic text is the same as the current topic,
- * dont bother to send the TOPIC command out, just silently
- * update the set time and set nick.
- */
- if (oldtopic != params[3])
- {
- userrec* user = this->Instance->FindNick(source);
- if (!user)
- {
- c->WriteChannelWithServ(source.c_str(), "TOPIC %s :%s", c->name, c->topic);
- }
- else
- {
- c->WriteChannel(user, "TOPIC %s :%s", c->name, c->topic);
- nsource = user->server;
- }
- /* all done, send it on its way */
- params[3] = ":" + params[3];
- Utils->DoOneToAllButSender(source,"FTOPIC",params,nsource);
- }
- }
-
- }
- return true;
-}
-
-/** FJOIN, similar to TS6 SJOIN, but not quite. */
-bool TreeSocket::ForceJoin(const std::string &source, std::deque<std::string> &params)
-{
- /* 1.1 FJOIN works as follows:
- *
- * Each FJOIN is sent along with a timestamp, and the side with the lowest
- * timestamp 'wins'. From this point on we will refer to this side as the
- * winner. The side with the higher timestamp loses, from this point on we
- * will call this side the loser or losing side. This should be familiar to
- * anyone who's dealt with dreamforge or TS6 before.
- *
- * When two sides of a split heal and this occurs, the following things
- * will happen:
- *
- * If the timestamps are exactly equal, both sides merge their privilages
- * and users, as in InspIRCd 1.0 and ircd2.8. The channels have not been
- * re-created during a split, this is safe to do.
- *
- *
- * If the timestamps are NOT equal, the losing side removes all privilage
- * modes from all of its users that currently exist in the channel, before
- * introducing new users into the channel which are listed in the FJOIN
- * command's parameters. This means, all modes +ohv, and privilages added
- * by modules, such as +qa. The losing side then LOWERS its timestamp value
- * of the channel to match that of the winning side, and the modes of the
- * users of the winning side are merged in with the losing side. The loser
- * then sends out a set of FMODE commands which 'confirm' that it just
- * removed all privilage modes from its existing users, which allows for
- * services packages to still work correctly without needing to know the
- * timestamping rules which InspIRCd follows. In TS6 servers this is always
- * a problem, and services packages must contain code which explicitly
- * behaves as TS6 does, removing ops from the losing side of a split where
- * neccessary within its internal records, as this state information is
- * not explicitly echoed out in that protocol.
- *
- * The winning side on the other hand will ignore all user modes from the
- * losing side, so only its own modes get applied. Life is simple for those
- * who succeed at internets. :-)
- *
- * NOTE: Unlike TS6 and dreamforge and other protocols which have SJOIN,
- * FJOIN does not contain the simple-modes such as +iklmnsp. Why not,
- * you ask? Well, quite simply because we don't need to. They'll be sent
- * after the FJOIN by FMODE, and FMODE is timestamped, so in the event
- * the losing side sends any modes for the channel which shouldnt win,
- * they wont as their timestamp will be too high :-)
- */
-
- if (params.size() < 3)
- return true;
-
- char first[MAXBUF]; /* The first parameter of the mode command */
- char modestring[MAXBUF]; /* The mode sequence (2nd parameter) of the mode command */
- char* mode_users[127]; /* The values used by the mode command */
- memset(&mode_users,0,sizeof(mode_users)); /* Initialize mode parameters */
- mode_users[0] = first; /* Set this up to be our on-stack value */
- mode_users[1] = modestring; /* Same here as above */
- strcpy(modestring,"+"); /* Initialize the mode sequence to just '+' */
- unsigned int modectr = 2; /* Pointer to the third mode parameter (e.g. the one after the +-sequence) */
-
- userrec* who = NULL; /* User we are currently checking */
- std::string channel = params[0]; /* Channel name, as a string */
- time_t TS = atoi(params[1].c_str()); /* Timestamp given to us for remote side */
- bool created = false;
-
- /* Try and find the channel */
- chanrec* chan = this->Instance->FindChan(channel);
-
- /* Initialize channel name in the mode parameters */
- strlcpy(mode_users[0],channel.c_str(),MAXBUF);
-
- /* default TS is a high value, which if we dont have this
- * channel will let the other side apply their modes.
- */
- time_t ourTS = Instance->Time(true)+600;
- /* Does this channel exist? if it does, get its REAL timestamp */
- if (chan)
- ourTS = chan->age;
- else
- created = true; /* don't perform deops, and set TS to correct time after processing. */
- /* In 1.1, if they have the newer channel, we immediately clear
- * all status modes from our users. We then accept their modes.
- * If WE have the newer channel its the other side's job to do this.
- * Note that this causes the losing server to send out confirming
- * FMODE lines.
- */
- if (ourTS > TS)
- {
- std::deque<std::string> param_list;
- /* Lower the TS here */
- if (Utils->AnnounceTSChange && chan)
- chan->WriteChannelWithServ(Instance->Config->ServerName,
- "NOTICE %s :TS for %s changed from %lu to %lu", chan->name, chan->name, ourTS, TS);
- ourTS = TS;
- /* Zap all the privilage modes on our side, if the channel exists here */
- if (!created)
- {
- param_list.push_back(channel);
- /* Do this first! */
- chan->age = TS;
- this->RemoveStatus(Instance->Config->ServerName, param_list);
- }
- }
- /* Put the final parameter of the FJOIN into a tokenstream ready to split it */
- irc::tokenstream users(params[2]);
- std::string item = "*";
- /* do this first, so our mode reversals are correctly received by other servers
- * if there is a TS collision.
- */
- params[2] = ":" + params[2];
- Utils->DoOneToAllButSender(source,"FJOIN",params,source);
- /* Now, process every 'prefixes,nick' pair */
- while (item != "")
- {
- /* Find next user */
- item = users.GetToken();
- const char* usr = item.c_str();
- /* Safety check just to make sure someones not sent us an FJOIN full of spaces
- * (is this even possible?) */
- if (usr && *usr)
- {
- const char* permissions = usr;
- int ntimes = 0;
- char* nm = new char[MAXBUF];
- char* tnm = nm;
- /* Iterate through all the prefix values, convert them from prefixes
- * to mode letters, and append them to the mode sequence
- */
- while ((*permissions) && (*permissions != ',') && (ntimes < MAXBUF))
- {
- ModeHandler* mh = Instance->Modes->FindPrefix(*permissions);
- if (mh)
- {
- /* This is a valid prefix */
- ntimes++;
- *tnm++ = mh->GetModeChar();
- }
- else
- {
- /* Not a valid prefix...
- * danger bill bobbertson! (that's will robinsons older brother ;-) ...)
- */
- this->Instance->WriteOpers("ERROR: We received a user with an unknown prefix '%c'. Closed connection to avoid a desync.",*permissions);
- this->WriteLine(std::string("ERROR :Invalid prefix '")+(*permissions)+"' in FJOIN");
- return false;
- }
- usr++;
- permissions++;
- }
- /* Null terminate modes */
- *tnm = 0;
- /* Advance past the comma, to the nick */
- usr++;
- /* Check the user actually exists */
- who = this->Instance->FindNick(usr);
- if (who)
- {
- /* Did they get any modes? How many times? */
- strlcat(modestring, nm, MAXBUF);
- for (int k = 0; k < ntimes; k++)
- mode_users[modectr++] = strdup(usr);
- /* Free temporary buffer used for mode sequence */
- delete[] nm;
- /* Check that the user's 'direction' is correct
- * based on the server sending the FJOIN. We must
- * check each nickname in turn, because the origin of
- * the FJOIN may be different to the origin of the nicks
- * in the command itself.
- */
- TreeServer* route_back_again = Utils->BestRouteTo(who->server);
- if ((!route_back_again) || (route_back_again->GetSocket() != this))
- {
- /* Oh dear oh dear. */
- continue;
- }
- /* Finally, we can actually place the user into the channel.
- * We're sure its right. Final answer, phone a friend.
- */
- chanrec::JoinUser(this->Instance, who, channel.c_str(), true, "");
- /* Have we already queued up MAXMODES modes with parameters
- * (+qaohv) ready to be sent to the server?
- */
- if (modectr >= (MAXMODES-1))
- {
- /* Only actually give the users any status if we lost
- * the FJOIN or drew (equal timestamps).
- * It isn't actually possible for ourTS to be > TS here,
- * only possible to actually have ourTS == TS, or
- * ourTS < TS, because if we lost, we already lowered
- * our TS above before we entered this loop. We only
- * check >= as a safety measure, in case someone stuffed
- * up. If someone DID stuff up, it was most likely me.
- * Note: I do not like baseball bats in the face...
- */
- if (ourTS >= TS)
- {
- this->Instance->SendMode((const char**)mode_users,modectr,who);
-
- /* Something stuffed up, and for some reason, the timestamp is
- * NOT lowered right now and should be. Lower it. Usually this
- * code won't be executed, doubtless someone will remove it some
- * day soon.
- */
- if (ourTS > TS)
- {
- Instance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",chan->name,ourTS,TS);
- chan->age = TS;
- ourTS = TS;
- }
- }
-
- /* Reset all this back to defaults, and
- * free any ram we have left allocated.
- */
- strcpy(mode_users[1],"+");
- for (unsigned int f = 2; f < modectr; f++)
- free(mode_users[f]);
- modectr = 2;
- }
- }
- else
- {
- /* Remember to free this */
- delete[] nm;
- /* If we got here, there's a nick in FJOIN which doesnt exist on this server.
- * We don't try to process the nickname here (that WOULD cause a segfault because
- * we'd be playing with null pointers) however, we DO pass the nickname on, just
- * in case somehow we're desynched, so that other users which might be able to see
- * the nickname get their fair chance to process it.
- */
- Instance->Log(SPARSE,"Warning! Invalid user in FJOIN to channel %s IGNORED", channel.c_str());
- continue;
- }
- }
- }
-
- /* there werent enough modes built up to flush it during FJOIN,
- * or, there are a number left over. flush them out.
- */
- if ((modectr > 2) && (who) && (chan))
- {
- if (ourTS >= TS)
- {
- /* Our channel is newer than theirs. Evil deeds must be afoot. */
- this->Instance->SendMode((const char**)mode_users,modectr,who);
- /* Yet again, we can't actually get a true value here, if everything else
- * is working as it should.
- */
- if (ourTS > TS)
- {
- Instance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",chan->name,ourTS,TS);
- chan->age = TS;
- ourTS = TS;
- }
- }
-
- /* Free anything we have left to free */
- for (unsigned int f = 2; f < modectr; f++)
- free(mode_users[f]);
- }
- /* if we newly created the channel, set it's TS properly. */
- if (created)
- {
- /* find created channel .. */
- chan = this->Instance->FindChan(channel);
- if (chan)
- /* w00t said this shouldnt be needed but it is.
- * This isnt strictly true, as chan can be NULL
- * if a nick collision has occured and therefore
- * the channel was never created.
- */
- chan->age = TS;
- }
- /* All done. That wasnt so bad was it, you can wipe
- * the sweat from your forehead now. :-)
- */
- return true;
-}
-
-/** NICK command */
-bool TreeSocket::IntroduceClient(const std::string &source, std::deque<std::string> &params)
-{
- if (params.size() < 8)
- return true;
- if (params.size() > 8)
- {
- this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+params[1]+" :Invalid client introduction ("+params[1]+"?)");
- return true;
- }
- // NICK age nick host dhost ident +modes ip :gecos
- // 0 1 2 3 4 5 6 7
- time_t age = atoi(params[0].c_str());
-
- const char* tempnick = params[1].c_str();
- Instance->Log(DEBUG,"New remote client %s",tempnick);
-
- user_hash::iterator iter = this->Instance->clientlist->find(tempnick);
-
- if (iter != this->Instance->clientlist->end())
- {
- // nick collision
- this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+tempnick+" :Nickname collision");
- userrec::QuitUser(this->Instance, iter->second, "Nickname collision");
- return true;
- }
-
- userrec* _new = new userrec(this->Instance);
- (*(this->Instance->clientlist))[tempnick] = _new;
- _new->SetFd(FD_MAGIC_NUMBER);
- strlcpy(_new->nick, tempnick,NICKMAX-1);
- strlcpy(_new->host, params[2].c_str(),63);
- strlcpy(_new->dhost, params[3].c_str(),63);
- _new->server = this->Instance->FindServerNamePtr(source.c_str());
- strlcpy(_new->ident, params[4].c_str(),IDENTMAX);
- strlcpy(_new->fullname, params[7].c_str(),MAXGECOS);
- _new->registered = REG_ALL;
- _new->signon = age;
-
- /*
- * we need to remove the + from the modestring, so we can do our stuff
- */
- std::string::size_type pos_after_plus = params[5].find_first_not_of('+');
- if (pos_after_plus != std::string::npos)
- params[5] = params[5].substr(pos_after_plus);
-
- for (std::string::iterator v = params[5].begin(); v != params[5].end(); v++)
- {
- _new->modes[(*v)-65] = 1;
- /* For each mode thats set, increase counter */
- ModeHandler* mh = Instance->Modes->FindMode(*v, MODETYPE_USER);
- if (mh)
- mh->ChangeCount(1);
- }
-
- /* now we've done with modes processing, put the + back for remote servers */
- params[5] = "+" + params[5];
-
-#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);
-
- Instance->AddGlobalClone(_new);
- this->Instance->SNO->WriteToSnoMask('C',"Client connecting at %s: %s!%s@%s [%s]",_new->server,_new->nick,_new->ident,_new->host, _new->GetIPString());
-
- params[7] = ":" + params[7];
- Utils->DoOneToAllButSender(source,"NICK", params, source);
-
- // Increment the Source Servers User Count..
- TreeServer* SourceServer = Utils->FindServer(source);
- if (SourceServer)
- {
- SourceServer->AddUserCount();
- }
-
- FOREACH_MOD_I(Instance,I_OnPostConnect,OnPostConnect(_new));
-
- return true;
-}
-
-/** 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.
- */
-void TreeSocket::SendFJoins(TreeServer* Current, chanrec* c)
-{
- std::string buffer;
- char list[MAXBUF];
- std::string individual_halfops = std::string(":")+this->Instance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age);
-
- size_t dlen, curlen;
- dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
- int numusers = 0;
- char* ptr = list + dlen;
-
- CUList *ulist = c->GetUsers();
- std::string modes = "";
- std::string params = "";
-
- for (CUList::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 ? ":" : "", c->GetAllPrefixChars(i->second), i->second->nick);
-
- curlen += ptrlen;
- ptr += ptrlen;
-
- numusers++;
-
- if (curlen > (480-NICKMAX))
- {
- buffer.append(list).append("\r\n");
- dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
- ptr = list + dlen;
- ptrlen = 0;
- numusers = 0;
- }
- }
-
- if (numusers)
- buffer.append(list).append("\r\n");
-
- /* Sorry for the hax. Because newly created channels assume +nt,
- * if this channel doesnt have +nt, explicitly send -n and -t for the missing modes.
- */
- bool inverted = false;
- if (!c->IsModeSet('n'))
- {
- modes.append("-n");
- inverted = true;
- }
- if (!c->IsModeSet('t'))
- {
- modes.append("-t");
- inverted = true;
- }
- if (inverted)
- {
- modes.append("+");
- }
-
- for (BanList::iterator b = c->bans.begin(); b != c->bans.end(); b++)
- {
- modes.append("b");
- params.append(" ").append(b->data);
- if (params.length() >= MAXMODES)
- {
- /* Wrap at MAXMODES */
- buffer.append(":").append(this->Instance->Config->ServerName).append(" FMODE ").append(c->name).append(" ").append(ConvToStr(c->age)).append(" +").append(modes).append(params).append("\r\n");
- modes = "";
- params = "";
- }
- }
- buffer.append(":").append(this->Instance->Config->ServerName).append(" FMODE ").append(c->name).append(" ").append(ConvToStr(c->age)).append(" +").append(c->ChanModes(true));
-
- /* Only send these if there are any */
- if (!modes.empty())
- buffer.append("\r\n").append(":").append(this->Instance->Config->ServerName).append(" FMODE ").append(c->name).append(" ").append(ConvToStr(c->age)).append(" +").append(modes).append(params);
-
- this->WriteLine(buffer);
-}
-
-/** Send G, Q, Z and E lines */
-void TreeSocket::SendXLines(TreeServer* Current)
-{
- char data[MAXBUF];
- std::string buffer;
- std::string n = this->Instance->Config->ServerName;
- const char* sn = n.c_str();
- /* Yes, these arent too nice looking, but they get the job done */
- for (std::vector<ZLine*>::iterator i = Instance->XLines->zlines.begin(); i != Instance->XLines->zlines.end(); i++)
- {
- snprintf(data,MAXBUF,":%s ADDLINE Z %s %s %lu %lu :%s\r\n",sn,(*i)->ipaddr,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
- buffer.append(data);
- }
- for (std::vector<QLine*>::iterator i = Instance->XLines->qlines.begin(); i != Instance->XLines->qlines.end(); i++)
- {
- snprintf(data,MAXBUF,":%s ADDLINE Q %s %s %lu %lu :%s\r\n",sn,(*i)->nick,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
- buffer.append(data);
- }
- for (std::vector<GLine*>::iterator i = Instance->XLines->glines.begin(); i != Instance->XLines->glines.end(); i++)
- {
- snprintf(data,MAXBUF,":%s ADDLINE G %s@%s %s %lu %lu :%s\r\n",sn,(*i)->identmask,(*i)->hostmask,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
- buffer.append(data);
- }
- for (std::vector<ELine*>::iterator i = Instance->XLines->elines.begin(); i != Instance->XLines->elines.end(); i++)
- {
- snprintf(data,MAXBUF,":%s ADDLINE E %s@%s %s %lu %lu :%s\r\n",sn,(*i)->identmask,(*i)->hostmask,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
- buffer.append(data);
- }
- for (std::vector<ZLine*>::iterator i = Instance->XLines->pzlines.begin(); i != Instance->XLines->pzlines.end(); i++)
- {
- snprintf(data,MAXBUF,":%s ADDLINE Z %s %s %lu %lu :%s\r\n",sn,(*i)->ipaddr,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
- buffer.append(data);
- }
- for (std::vector<QLine*>::iterator i = Instance->XLines->pqlines.begin(); i != Instance->XLines->pqlines.end(); i++)
- {
- snprintf(data,MAXBUF,":%s ADDLINE Q %s %s %lu %lu :%s\r\n",sn,(*i)->nick,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
- buffer.append(data);
- }
- for (std::vector<GLine*>::iterator i = Instance->XLines->pglines.begin(); i != Instance->XLines->pglines.end(); i++)
- {
- snprintf(data,MAXBUF,":%s ADDLINE G %s@%s %s %lu %lu :%s\r\n",sn,(*i)->identmask,(*i)->hostmask,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
- buffer.append(data);
- }
- for (std::vector<ELine*>::iterator i = Instance->XLines->pelines.begin(); i != Instance->XLines->pelines.end(); i++)
- {
- snprintf(data,MAXBUF,":%s ADDLINE E %s@%s %s %lu %lu :%s\r\n",sn,(*i)->identmask,(*i)->hostmask,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
- buffer.append(data);
- }
-
- if (!buffer.empty())
- this->WriteLine(buffer);
-}
-
-/** Send channel modes and topics */
-void TreeSocket::SendChannelModes(TreeServer* Current)
-{
- char data[MAXBUF];
- std::deque<std::string> list;
- std::string n = this->Instance->Config->ServerName;
- const char* sn = n.c_str();
- for (chan_hash::iterator c = this->Instance->chanlist->begin(); c != this->Instance->chanlist->end(); c++)
- {
- 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++)
- {
- FOREACH_MOD_I(this->Instance,I_OnSyncChannelMetaData,OnSyncChannelMetaData(c->second,(Module*)Utils->Creator,(void*)this,list[j]));
- }
- }
-}
-
-/** send all users and their oper state/modes */
-void TreeSocket::SendUsers(TreeServer* Current)
-{
- char data[MAXBUF];
- std::deque<std::string> list;
- std::string dataline;
- for (user_hash::iterator u = this->Instance->clientlist->begin(); u != this->Instance->clientlist->end(); u++)
- {
- if (u->second->registered == REG_ALL)
- {
- snprintf(data,MAXBUF,":%s NICK %lu %s %s %s %s +%s %s :%s",u->second->server,(unsigned long)u->second->age,u->second->nick,u->second->host,u->second->dhost,u->second->ident,u->second->FormatModes(),u->second->GetIPString(),u->second->fullname);
- this->WriteLine(data);
- if (*u->second->oper)
- {
- snprintf(data,MAXBUF,":%s OPERTYPE %s", u->second->nick, u->second->oper);
- this->WriteLine(data);
- }
- if (*u->second->awaymsg)
- {
- snprintf(data,MAXBUF,":%s AWAY :%s", u->second->nick, u->second->awaymsg);
- this->WriteLine(data);
- }
- 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]));
- }
- }
- }
-}
-
-/** 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
- * users require their servers to exist, and channels require their
- * users to exist. You get the idea.
- */
-void TreeSocket::DoBurst(TreeServer* s)
-{
- std::string burst = "BURST "+ConvToStr(Instance->Time(true));
- std::string endburst = "ENDBURST";
- // Because by the end of the netburst, it could be gone!
- std::string name = s->GetName();
- this->Instance->SNO->WriteToSnoMask('l',"Bursting to \2"+name+"\2.");
- this->WriteLine(burst);
- /* send our version string */
- this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" 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.");
-}
-
-/** This function is called when we receive data from a remote
- * server. We buffer the data in a std::string (it doesnt stay
- * there for long), reading using InspSocket::Read() which can
- * read up to 16 kilobytes in one operation.
- *
- * IF THIS FUNCTION RETURNS FALSE, THE CORE CLOSES AND DELETES
- * THE SOCKET OBJECT FOR US.
- */
-bool TreeSocket::OnDataReady()
-{
- char* data = this->Read();
- /* Check that the data read is a valid pointer and it has some content */
- if (data && *data)
- {
- this->in_buffer.append(data);
- /* While there is at least one new line in the buffer,
- * do something useful (we hope!) with it.
- */
- while (in_buffer.find("\n") != std::string::npos)
- {
- std::string ret = in_buffer.substr(0,in_buffer.find("\n")-1);
- in_buffer = in_buffer.substr(in_buffer.find("\n")+1,in_buffer.length()-in_buffer.find("\n"));
- /* Use rfind here not find, as theres more
- * chance of the \r being near the end of the
- * string, not the start.
- */
- if (ret.find("\r") != std::string::npos)
- ret = in_buffer.substr(0,in_buffer.find("\r")-1);
- /* Process this one, abort if it
- * didnt return true.
- */
- if (!this->ProcessLine(ret))
- {
- return false;
- }
- }
- return true;
- }
- /* EAGAIN returns an empty but non-NULL string, so this
- * evaluates to TRUE for EAGAIN but to FALSE for EOF.
- */
- return (data && !*data);
-}
-
-int TreeSocket::WriteLine(std::string line)
-{
- Instance->Log(DEBUG, "-> %s", line.c_str());
- line.append("\r\n");
- return this->Write(line);
-}
-
-/* Handle ERROR command */
-bool TreeSocket::Error(std::deque<std::string> &params)
-{
- if (params.size() < 1)
- return false;
- this->Instance->SNO->WriteToSnoMask('l',"ERROR from %s: %s",(InboundServerName != "" ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str());
- /* we will return false to cause the socket to close. */
- return false;
-}
-
-/** remote MOTD. leet, huh? */
-bool TreeSocket::Motd(const std::string &prefix, std::deque<std::string> &params)
-{
- if (params.size() > 0)
- {
- if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
- {
- /* It's for our server */
- string_list results;
- userrec* source = this->Instance->FindNick(prefix);
-
- if (source)
- {
- std::deque<std::string> par;
- par.push_back(prefix);
- par.push_back("");
-
- if (!Instance->Config->MOTD.size())
- {
- par[1] = std::string("::")+Instance->Config->ServerName+" 422 "+source->nick+" :Message of the day file is missing.";
- Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
- return true;
- }
-
- par[1] = std::string("::")+Instance->Config->ServerName+" 375 "+source->nick+" :"+Instance->Config->ServerName+" message of the day";
- Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
-
- for (unsigned int i = 0; i < Instance->Config->MOTD.size(); i++)
- {
- par[1] = std::string("::")+Instance->Config->ServerName+" 372 "+source->nick+" :- "+Instance->Config->MOTD[i];
- Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
- }
-
- par[1] = std::string("::")+Instance->Config->ServerName+" 376 "+source->nick+" End of message of the day.";
- Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
- }
- }
- else
- {
- /* Pass it on */
- userrec* source = this->Instance->FindNick(prefix);
- if (source)
- Utils->DoOneToOne(prefix, "MOTD", params, params[0]);
- }
- }
- return true;
-}
-
-/** remote ADMIN. leet, huh? */
-bool TreeSocket::Admin(const std::string &prefix, std::deque<std::string> &params)
-{
- if (params.size() > 0)
- {
- if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
- {
- /* It's for our server */
- string_list results;
- userrec* source = this->Instance->FindNick(prefix);
- if (source)
- {
- std::deque<std::string> par;
- par.push_back(prefix);
- par.push_back("");
- par[1] = std::string("::")+Instance->Config->ServerName+" 256 "+source->nick+" :Administrative info for "+Instance->Config->ServerName;
- Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
- par[1] = std::string("::")+Instance->Config->ServerName+" 257 "+source->nick+" :Name - "+Instance->Config->AdminName;
- Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
- par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :Nickname - "+Instance->Config->AdminNick;
- Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
- par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :E-Mail - "+Instance->Config->AdminEmail;
- Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
- }
- }
- else
- {
- /* Pass it on */
- userrec* source = this->Instance->FindNick(prefix);
- if (source)
- Utils->DoOneToOne(prefix, "ADMIN", params, params[0]);
- }
- }
- return true;
-}
-
-bool TreeSocket::Stats(const std::string &prefix, std::deque<std::string> &params)
-{
- /* Get the reply to a STATS query if it matches this servername,
- * and send it back as a load of PUSH queries
- */
- if (params.size() > 1)
- {
- if (this->Instance->MatchText(this->Instance->Config->ServerName, params[1]))
- {
- /* It's for our server */
- string_list results;
- userrec* source = this->Instance->FindNick(prefix);
- if (source)
- {
- std::deque<std::string> par;
- par.push_back(prefix);
- par.push_back("");
- DoStats(this->Instance, *(params[0].c_str()), source, results);
- for (size_t i = 0; i < results.size(); i++)
- {
- par[1] = "::" + results[i];
- Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
- }
- }
- }
- else
- {
- /* Pass it on */
- userrec* source = this->Instance->FindNick(prefix);
- if (source)
- Utils->DoOneToOne(prefix, "STATS", params, params[1]);
- }
- }
- return true;
-}
-
-
-/** Because the core won't let users or even SERVERS set +o,
- * we use the OPERTYPE command to do this.
- */
-bool TreeSocket::OperType(const std::string &prefix, std::deque<std::string> &params)
-{
- if (params.size() != 1)
- return true;
- std::string opertype = params[0];
- userrec* u = this->Instance->FindNick(prefix);
- if (u)
- {
- u->modes[UM_OPERATOR] = 1;
- this->Instance->all_opers.push_back(u);
- strlcpy(u->oper,opertype.c_str(),NICKMAX-1);
- Utils->DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server);
- this->Instance->SNO->WriteToSnoMask('o',"From %s: User %s (%s@%s) is now an IRC operator of type %s",u->server, u->nick,u->ident,u->host,irc::Spacify(opertype.c_str()));
- }
- return true;
-}
-
-/** Because Andy insists that services-compatible servers must
- * implement SVSNICK and SVSJOIN, that's exactly what we do :p
- */
-bool TreeSocket::ForceNick(const std::string &prefix, std::deque<std::string> &params)
-{
- if (params.size() < 3)
- return true;
-
- userrec* u = this->Instance->FindNick(params[0]);
-
- if (u)
- {
- Utils->DoOneToAllButSender(prefix,"SVSNICK",params,prefix);
- if (IS_LOCAL(u))
- {
- std::deque<std::string> par;
- par.push_back(params[1]);
- if (!u->ForceNickChange(params[1].c_str()))
- {
- userrec::QuitUser(this->Instance, u, "Nickname collision");
- return true;
- }
- u->age = atoi(params[2].c_str());
- }
- }
- return true;
-}
-
-/*
- * Remote SQUIT (RSQUIT). Routing works similar to SVSNICK: Route it to the server that the target is connected to locally,
- * then let that server do the dirty work (squit it!). Example:
- * A -> B -> C -> D: oper on A squits D, A routes to B, B routes to C, C notices D connected locally, kills it. -- w00t
- */
-bool TreeSocket::RemoteSquit(const std::string &prefix, std::deque<std::string> &params)
-{
- /* ok.. :w00t RSQUIT jupe.barafranca.com :reason here */
- if (params.size() < 2)
- return true;
-
- TreeServer* s = Utils->FindServerMask(params[0]);
-
- if (s)
- {
- if (s == Utils->TreeRoot)
- {
- this->Instance->SNO->WriteToSnoMask('l',"What the fuck, I recieved a remote SQUIT for myself? :< (from %s", prefix.c_str());
- return true;
- }
-
- TreeSocket* sock = s->GetSocket();
-
- if (sock)
- {
- /* it's locally connected, KILL IT! */
- Instance->SNO->WriteToSnoMask('l',"RSQUIT: Server \002%s\002 removed from network by %s: %s", params[0].c_str(), prefix.c_str(), params[1].c_str());
- sock->Squit(s,"Server quit by " + prefix + ": " + params[1]);
- Instance->SE->DelFd(sock);
- sock->Close();
- delete sock;
- }
- else
- {
- /* route the rsquit */
- params[1] = ":" + params[1];
- Utils->DoOneToOne(prefix, "RSQUIT", params, params[0]);
- }
- }
- else
- {
- /* mother fucker! it doesn't exist */
- }
-
- return true;
-}
-
-bool TreeSocket::ServiceJoin(const std::string &prefix, std::deque<std::string> &params)
-{
- if (params.size() < 2)
- return true;
-
- userrec* u = this->Instance->FindNick(params[0]);
-
- if (u)
- {
- /* only join if it's local, otherwise just pass it on! */
- if (IS_LOCAL(u))
- chanrec::JoinUser(this->Instance, u, params[1].c_str(), false);
- Utils->DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);
- }
- return true;
-}
-
-bool TreeSocket::RemoteRehash(const std::string &prefix, std::deque<std::string> &params)
-{
- if (params.size() < 1)
- return false;
-
- std::string servermask = params[0];
-
- if (this->Instance->MatchText(this->Instance->Config->ServerName,servermask))
- {
- this->Instance->SNO->WriteToSnoMask('l',"Remote rehash initiated by \002"+prefix+"\002.");
- this->Instance->RehashServer();
- Utils->ReadConfiguration(false);
- InitializeDisabledCommands(Instance->Config->DisabledCommands, Instance);
- }
- Utils->DoOneToAllButSender(prefix,"REHASH",params,prefix);
- return true;
-}
-
-bool TreeSocket::RemoteKill(const std::string &prefix, std::deque<std::string> &params)
-{
- if (params.size() != 2)
- return true;
-
- std::string nick = params[0];
- userrec* u = this->Instance->FindNick(prefix);
- userrec* who = this->Instance->FindNick(nick);
-
- if (who)
- {
- /* Prepend kill source, if we don't have one */
- std::string sourceserv = prefix;
- if (u)
- {
- sourceserv = u->server;
- }
- if (*(params[1].c_str()) != '[')
- {
- params[1] = "[" + sourceserv + "] Killed (" + params[1] +")";
- }
- std::string reason = params[1];
- params[1] = ":" + params[1];
- Utils->DoOneToAllButSender(prefix,"KILL",params,sourceserv);
- who->Write(":%s KILL %s :%s (%s)", sourceserv.c_str(), who->nick, sourceserv.c_str(), reason.c_str());
- userrec::QuitUser(this->Instance,who,reason);
- }
- return true;
-}
-
-bool TreeSocket::LocalPong(const std::string &prefix, std::deque<std::string> &params)
-{
- if (params.size() < 1)
- return true;
-
- if (params.size() == 1)
- {
- TreeServer* ServerSource = Utils->FindServer(prefix);
- if (ServerSource)
- {
- ServerSource->SetPingFlag();
- }
- }
- else
- {
- std::string forwardto = params[1];
- if (forwardto == this->Instance->Config->ServerName)
- {
- /*
- * this is a PONG for us
- * if the prefix is a user, check theyre local, and if they are,
- * dump the PONG reply back to their fd. If its a server, do nowt.
- * Services might want to send these s->s, but we dont need to yet.
- */
- userrec* u = this->Instance->FindNick(prefix);
- if (u)
- {
- u->WriteServ("PONG %s %s",params[0].c_str(),params[1].c_str());
- }
- }
- else
- {
- // not for us, pass it on :)
- Utils->DoOneToOne(prefix,"PONG",params,forwardto);
- }
- }
-
- return true;
-}
-
-bool TreeSocket::MetaData(const std::string &prefix, std::deque<std::string> &params)
-{
- if (params.size() < 3)
- return true;
- TreeServer* ServerSource = Utils->FindServer(prefix);
- if (ServerSource)
- {
- if (params[0] == "*")
- {
- FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_OTHER,NULL,params[1],params[2]));
- }
- else if (*(params[0].c_str()) == '#')
- {
- chanrec* c = this->Instance->FindChan(params[0]);
- if (c)
- {
- FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_CHANNEL,c,params[1],params[2]));
- }
- }
- else if (*(params[0].c_str()) != '#')
- {
- userrec* u = this->Instance->FindNick(params[0]);
- if (u)
- {
- FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_USER,u,params[1],params[2]));
- }
- }
- }
-
- params[2] = ":" + params[2];
- Utils->DoOneToAllButSender(prefix,"METADATA",params,prefix);
- return true;
-}
-
-bool TreeSocket::ServerVersion(const std::string &prefix, std::deque<std::string> &params)
-{
- if (params.size() < 1)
- return true;
-
- TreeServer* ServerSource = Utils->FindServer(prefix);
-
- if (ServerSource)
- {
- ServerSource->SetVersion(params[0]);
- }
- params[0] = ":" + params[0];
- Utils->DoOneToAllButSender(prefix,"VERSION",params,prefix);
- return true;
-}
-
-bool TreeSocket::ChangeHost(const std::string &prefix, std::deque<std::string> &params)
-{
- if (params.size() < 1)
- return true;
- userrec* u = this->Instance->FindNick(prefix);
-
- if (u)
- {
- u->ChangeDisplayedHost(params[0].c_str());
- Utils->DoOneToAllButSender(prefix,"FHOST",params,u->server);
- }
- return true;
-}
-
-bool TreeSocket::AddLine(const std::string &prefix, std::deque<std::string> &params)
-{
- if (params.size() < 6)
- return true;
- bool propogate = false;
- if (!this->bursting)
- Utils->lines_to_apply = 0;
- switch (*(params[0].c_str()))
- {
- case 'Z':
- propogate = Instance->XLines->add_zline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
- Instance->XLines->zline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
- if (propogate)
- Utils->lines_to_apply |= APPLY_ZLINES;
- break;
- case 'Q':
- propogate = Instance->XLines->add_qline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
- Instance->XLines->qline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
- if (propogate)
- Utils->lines_to_apply |= APPLY_QLINES;
- break;
- case 'E':
- propogate = Instance->XLines->add_eline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
- Instance->XLines->eline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
- break;
- case 'G':
- propogate = Instance->XLines->add_gline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
- Instance->XLines->gline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
- if (propogate)
- Utils->lines_to_apply |= APPLY_GLINES;
- break;
- case 'K':
- propogate = Instance->XLines->add_kline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
- if (propogate)
- Utils->lines_to_apply |= APPLY_KLINES;
- break;
- default:
- /* Just in case... */
- this->Instance->SNO->WriteToSnoMask('x',"\2WARNING\2: Invalid xline type '"+params[0]+"' sent by server "+prefix+", ignored!");
- propogate = false;
- break;
- }
- /* Send it on its way */
- if (propogate)
- {
- if (atoi(params[4].c_str()))
- {
- this->Instance->SNO->WriteToSnoMask('x',"%s Added %cLINE on %s to expire in %lu seconds (%s).",prefix.c_str(),*(params[0].c_str()),params[1].c_str(),atoi(params[4].c_str()),params[5].c_str());
- }
- else
- {
- this->Instance->SNO->WriteToSnoMask('x',"%s Added permenant %cLINE on %s (%s).",prefix.c_str(),*(params[0].c_str()),params[1].c_str(),params[5].c_str());
- }
- params[5] = ":" + params[5];
- Utils->DoOneToAllButSender(prefix,"ADDLINE",params,prefix);
- }
- if (!this->bursting)
- {
- Instance->XLines->apply_lines(Utils->lines_to_apply);
- Utils->lines_to_apply = 0;
- }
- return true;
-}
-
-bool TreeSocket::ChangeName(const std::string &prefix, std::deque<std::string> &params)
-{
- if (params.size() < 1)
- return true;
- userrec* u = this->Instance->FindNick(prefix);
- if (u)
- {
- u->ChangeName(params[0].c_str());
- params[0] = ":" + params[0];
- Utils->DoOneToAllButSender(prefix,"FNAME",params,u->server);
- }
- return true;
-}
-
-bool TreeSocket::Whois(const std::string &prefix, std::deque<std::string> &params)
-{
- if (params.size() < 1)
- return true;
- userrec* u = this->Instance->FindNick(prefix);
- if (u)
- {
- // an incoming request
- if (params.size() == 1)
- {
- userrec* x = this->Instance->FindNick(params[0]);
- if ((x) && (IS_LOCAL(x)))
- {
- userrec* x = this->Instance->FindNick(params[0]);
- char signon[MAXBUF];
- char idle[MAXBUF];
- snprintf(signon,MAXBUF,"%lu",(unsigned long)x->signon);
- snprintf(idle,MAXBUF,"%lu",(unsigned long)abs((x->idle_lastmsg)-Instance->Time(true)));
- std::deque<std::string> par;
- par.push_back(prefix);
- par.push_back(signon);
- par.push_back(idle);
- // ours, we're done, pass it BACK
- Utils->DoOneToOne(params[0],"IDLE",par,u->server);
- }
- else
- {
- // not ours pass it on
- Utils->DoOneToOne(prefix,"IDLE",params,x->server);
- }
- }
- else if (params.size() == 3)
- {
- std::string who_did_the_whois = params[0];
- userrec* who_to_send_to = this->Instance->FindNick(who_did_the_whois);
- if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
- {
- // an incoming reply to a whois we sent out
- std::string nick_whoised = prefix;
- unsigned long signon = atoi(params[1].c_str());
- unsigned long idle = atoi(params[2].c_str());
- if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
- do_whois(this->Instance,who_to_send_to,u,signon,idle,nick_whoised.c_str());
- }
- else
- {
- // not ours, pass it on
- Utils->DoOneToOne(prefix,"IDLE",params,who_to_send_to->server);
- }
- }
- }
- return true;
-}
-
-bool TreeSocket::Push(const std::string &prefix, std::deque<std::string> &params)
-{
- if (params.size() < 2)
- return true;
- userrec* u = this->Instance->FindNick(params[0]);
- if (!u)
- return true;
- if (IS_LOCAL(u))
- {
- u->Write(params[1]);
- }
- else
- {
- // continue the raw onwards
- params[1] = ":" + params[1];
- Utils->DoOneToOne(prefix,"PUSH",params,u->server);
- }
- return true;
-}
-
-bool TreeSocket::HandleSetTime(const std::string &prefix, std::deque<std::string> &params)
-{
- if (!params.size() || !Utils->EnableTimeSync)
- return true;
-
- bool force = false;
-
- if ((params.size() == 2) && (params[1] == "FORCE"))
- force = true;
-
- time_t rts = atoi(params[0].c_str());
- time_t us = Instance->Time(true);
-
- if (rts == us)
- {
- Utils->DoOneToAllButSender(prefix, "TIMESET", params, prefix);
- }
- else if (force || (rts < us))
- {
- int old = Instance->SetTimeDelta(rts - us);
- Instance->Log(DEBUG, "%s TS (diff %d) from %s applied (old delta was %d)", (force) ? "Forced" : "Lower", rts - us, prefix.c_str(), old);
-
- Utils->DoOneToAllButSender(prefix, "TIMESET", params, prefix);
- }
- else
- {
- Instance->Log(DEBUG, "Higher TS (diff %d) from %s overridden", us - rts, prefix.c_str());
-
- std::deque<std::string> oparams;
- oparams.push_back(ConvToStr(us));
-
- Utils->DoOneToMany(prefix, "TIMESET", oparams);
- }
-
- return true;
-}
-
-bool TreeSocket::Time(const std::string &prefix, std::deque<std::string> &params)
-{
- // :source.server TIME remote.server sendernick
- // :remote.server TIME source.server sendernick TS
- if (params.size() == 2)
- {
- // someone querying our time?
- if (this->Instance->Config->ServerName == params[0])
- {
- userrec* u = this->Instance->FindNick(params[1]);
- if (u)
- {
- params.push_back(ConvToStr(Instance->Time(false)));
- params[0] = prefix;
- Utils->DoOneToOne(this->Instance->Config->ServerName,"TIME",params,params[0]);
- }
- }
- else
- {
- // not us, pass it on
- userrec* u = this->Instance->FindNick(params[1]);
- if (u)
- Utils->DoOneToOne(prefix,"TIME",params,params[0]);
- }
- }
- else if (params.size() == 3)
- {
- // a response to a previous TIME
- userrec* u = this->Instance->FindNick(params[1]);
- if ((u) && (IS_LOCAL(u)))
- {
- time_t rawtime = atol(params[2].c_str());
- struct tm * timeinfo;
- timeinfo = localtime(&rawtime);
- char tms[26];
- snprintf(tms,26,"%s",asctime(timeinfo));
- tms[24] = 0;
- u->WriteServ("391 %s %s :%s",u->nick,prefix.c_str(),tms);
- }
- else
- {
- if (u)
- Utils->DoOneToOne(prefix,"TIME",params,u->server);
- }
- }
- return true;
-}
-
-bool TreeSocket::LocalPing(const std::string &prefix, std::deque<std::string> &params)
-{
- if (params.size() < 1)
- return true;
- if (params.size() == 1)
- {
- std::string stufftobounce = params[0];
- this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" PONG "+stufftobounce);
- return true;
- }
- else
- {
- std::string forwardto = params[1];
- if (forwardto == this->Instance->Config->ServerName)
- {
- // this is a ping for us, send back PONG to the requesting server
- params[1] = params[0];
- params[0] = forwardto;
- Utils->DoOneToOne(forwardto,"PONG",params,params[1]);
- }
- else
- {
- // not for us, pass it on :)
- Utils->DoOneToOne(prefix,"PING",params,forwardto);
- }
- return true;
- }
-}
-
-bool TreeSocket::RemoveStatus(const std::string &prefix, std::deque<std::string> &params)
-{
- if (params.size() < 1)
- return true;
- chanrec* c = Instance->FindChan(params[0]);
- if (c)
- {
- irc::modestacker modestack(false);
- CUList *ulist = c->GetUsers();
- const char* y[127];
- std::deque<std::string> stackresult;
- std::string x;
- for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
- {
- std::string modesequence = Instance->Modes->ModeString(i->second, c);
- if (modesequence.length())
- {
- irc::spacesepstream sep(modesequence);
- std::string modeletters = sep.GetToken();
- while (!modeletters.empty())
- {
- char mletter = *(modeletters.begin());
- modestack.Push(mletter,sep.GetToken());
- modeletters.erase(modeletters.begin());
- }
- }
- }
-
- while (modestack.GetStackedLine(stackresult))
- {
- stackresult.push_front(ConvToStr(c->age));
- stackresult.push_front(c->name);
- Utils->DoOneToMany(Instance->Config->ServerName, "FMODE", stackresult);
- stackresult.erase(stackresult.begin() + 1);
- for (size_t z = 0; z < stackresult.size(); z++)
- {
- y[z] = stackresult[z].c_str();
- }
- userrec* n = new userrec(Instance);
- n->SetFd(FD_MAGIC_NUMBER);
- Instance->SendMode(y, stackresult.size(), n);
- delete n;
- }
- }
- return true;
-}
-
-bool TreeSocket::RemoteServer(const std::string &prefix, std::deque<std::string> &params)
-{
- if (params.size() < 4)
- return false;
- std::string servername = params[0];
- std::string password = params[1];
- // hopcount is not used for a remote server, we calculate this ourselves
- std::string description = params[3];
- TreeServer* ParentOfThis = Utils->FindServer(prefix);
- if (!ParentOfThis)
- {
- this->WriteLine("ERROR :Protocol error - Introduced remote server from unknown server "+prefix);
- return false;
- }
- TreeServer* CheckDupe = Utils->FindServer(servername);
- if (CheckDupe)
- {
- this->WriteLine("ERROR :Server "+servername+" already exists!");
- this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+servername+"\2 denied, already exists");
- return false;
- }
- TreeServer* Node = new TreeServer(this->Utils,this->Instance,servername,description,ParentOfThis,NULL);
- ParentOfThis->AddChild(Node);
- params[3] = ":" + params[3];
- Utils->DoOneToAllButSender(prefix,"SERVER",params,prefix);
- this->Instance->SNO->WriteToSnoMask('l',"Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")");
- return true;
-}
-
-bool TreeSocket::Outbound_Reply_Server(std::deque<std::string> &params)
-{
- if (params.size() < 4)
- return false;
-
- irc::string servername = params[0].c_str();
- std::string sname = params[0];
- std::string password = params[1];
- int hops = atoi(params[2].c_str());
-
- if (hops)
- {
- this->WriteLine("ERROR :Server too far away for authentication");
- this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
- return false;
- }
- std::string description = params[3];
- for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
- {
- if ((x->Name == servername) && (x->RecvPass == password))
- {
- TreeServer* CheckDupe = Utils->FindServer(sname);
- if (CheckDupe)
- {
- this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
- this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
- return false;
- }
- // Begin the sync here. this kickstarts the
- // other side, waiting in WAIT_AUTH_2 state,
- // into starting their burst, as it shows
- // that we're happy.
- this->LinkState = CONNECTED;
- // we should add the details of this server now
- // to the servers tree, as a child of the root
- // node.
- TreeServer* Node = new TreeServer(this->Utils,this->Instance,sname,description,Utils->TreeRoot,this);
- Utils->TreeRoot->AddChild(Node);
- params[3] = ":" + params[3];
- Utils->DoOneToAllButSender(Utils->TreeRoot->GetName(),"SERVER",params,sname);
- this->bursting = true;
- this->DoBurst(Node);
- return true;
- }
- }
- this->WriteLine("ERROR :Invalid credentials");
- this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");
- return false;
-}
-
-bool TreeSocket::Inbound_Server(std::deque<std::string> &params)
-{
- if (params.size() < 4)
- return false;
- irc::string servername = params[0].c_str();
- std::string sname = params[0];
- std::string password = params[1];
- int hops = atoi(params[2].c_str());
-
- if (hops)
- {
- this->WriteLine("ERROR :Server too far away for authentication");
- this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
- return false;
- }
- std::string description = params[3];
- for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
- {
- if ((x->Name == servername) && (x->RecvPass == password))
- {
- TreeServer* CheckDupe = Utils->FindServer(sname);
- if (CheckDupe)
- {
- this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
- this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
- return false;
- }
- this->Instance->SNO->WriteToSnoMask('l',"Verified incoming server connection from \002"+sname+"\002["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] ("+description+")");
- if (this->Hook)
- {
- std::string name = InspSocketNameRequest((Module*)Utils->Creator, this->Hook).Send();
- this->Instance->SNO->WriteToSnoMask('l',"Connection from \2"+sname+"\2["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] using transport \2"+name+"\2");
- }
-
- this->InboundServerName = sname;
- this->InboundDescription = description;
- // this is good. Send our details: Our server name and description and hopcount of 0,
- // along with the sendpass from this block.
- this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+x->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
- // move to the next state, we are now waiting for THEM.
- this->LinkState = WAIT_AUTH_2;
- return true;
- }
- }
- this->WriteLine("ERROR :Invalid credentials");
- this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");
- return false;
-}
-
-void TreeSocket::Split(const std::string &line, std::deque<std::string> &n)
-{
- n.clear();
- irc::tokenstream tokens(line);
- std::string param;
- while ((param = tokens.GetToken()) != "")
- n.push_back(param);
- return;
-}
-
-bool TreeSocket::ProcessLine(std::string &line)
-{
- std::deque<std::string> params;
- irc::string command;
- std::string prefix;
-
- line = line.substr(0, line.find_first_of("\r\n"));
-
- if (line.empty())
- return true;
-
- Instance->Log(DEBUG, "<- %s", line.c_str());
-
- this->Split(line.c_str(),params);
-
- if ((params[0][0] == ':') && (params.size() > 1))
- {
- prefix = params[0].substr(1);
- params.pop_front();
- }
- command = params[0].c_str();
- params.pop_front();
- switch (this->LinkState)
- {
- TreeServer* Node;
-
- case WAIT_AUTH_1:
- // Waiting for SERVER command from remote server. Server initiating
- // the connection sends the first SERVER command, listening server
- // replies with theirs if its happy, then if the initiator is happy,
- // it starts to send its net sync, which starts the merge, otherwise
- // it sends an ERROR.
- if (command == "PASS")
- {
- /* Silently ignored */
- }
- else if (command == "SERVER")
- {
- return this->Inbound_Server(params);
- }
- else if (command == "ERROR")
- {
- return this->Error(params);
- }
- else if (command == "USER")
- {
- this->WriteLine("ERROR :Client connections to this port are prohibited.");
- return false;
- }
- else if (command == "CAPAB")
- {
- return this->Capab(params);
- }
- else if ((command == "U") || (command == "S"))
- {
- this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
- return false;
- }
- else
- {
- std::string error("ERROR :Invalid command in negotiation phase: ");
- error.append(command.c_str());
- this->WriteLine(error);
- return false;
- }
- break;
- case WAIT_AUTH_2:
- // Waiting for start of other side's netmerge to say they liked our
- // password.
- if (command == "SERVER")
- {
- // cant do this, they sent it to us in the WAIT_AUTH_1 state!
- // silently ignore.
- return true;
- }
- else if ((command == "U") || (command == "S"))
- {
- this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
- return false;
- }
- else if (command == "BURST")
- {
- if (params.size() && Utils->EnableTimeSync)
- {
- /* If a time stamp is provided, apply synchronization */
- bool force = false;
- time_t them = atoi(params[0].c_str());
- time_t us = Instance->Time(true);
- int delta = them - us;
- if ((params.size() == 2) && (params[1] == "FORCE"))
- force = true;
- if ((delta < -600) || (delta > 600))
- {
- this->Instance->SNO->WriteToSnoMask('l',"\2ERROR\2: Your clocks are out by %d seconds (this is more than ten minutes). Link aborted, \2PLEASE SYNC YOUR CLOCKS!\2",abs(delta));
- this->WriteLine("ERROR :Your clocks are out by "+ConvToStr(abs(delta))+" seconds (this is more than ten minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!");
- return false;
- }
-
- if (force || (us > them))
- {
- this->Instance->SetTimeDelta(them - us);
- // Send this new timestamp to any other servers
- Utils->DoOneToMany(Utils->TreeRoot->GetName(), "TIMESET", params);
- }
- else
- {
- // Override the timestamp
- this->WriteLine(":" + Utils->TreeRoot->GetName() + " TIMESET " + ConvToStr(us));
- }
- }
- this->LinkState = CONNECTED;
- Node = new TreeServer(this->Utils,this->Instance,InboundServerName,InboundDescription,Utils->TreeRoot,this);
- Utils->TreeRoot->AddChild(Node);
- params.clear();
- params.push_back(InboundServerName);
- params.push_back("*");
- params.push_back("1");
- params.push_back(":"+InboundDescription);
- Utils->DoOneToAllButSender(Utils->TreeRoot->GetName(),"SERVER",params,InboundServerName);
- this->bursting = true;
- this->DoBurst(Node);
- }
- else if (command == "ERROR")
- {
- return this->Error(params);
- }
- else if (command == "CAPAB")
- {
- return this->Capab(params);
- }
-
- break;
- case LISTENER:
- this->WriteLine("ERROR :Internal error -- listening socket accepted its own descriptor!!!");
- return false;
- break;
- case CONNECTING:
- if (command == "SERVER")
- {
- // another server we connected to, which was in WAIT_AUTH_1 state,
- // has just sent us their credentials. If we get this far, theyre
- // happy with OUR credentials, and they are now in WAIT_AUTH_2 state.
- // if we're happy with this, we should send our netburst which
- // kickstarts the merge.
- return this->Outbound_Reply_Server(params);
- }
- else if (command == "ERROR")
- {
- return this->Error(params);
- }
- break;
- case CONNECTED:
- // This is the 'authenticated' state, when all passwords
- // have been exchanged and anything past this point is taken
- // as gospel.
-
- if (prefix != "")
- {
- std::string direction = prefix;
- userrec* t = this->Instance->FindNick(prefix);
- if (t)
- {
- direction = t->server;
- }
- TreeServer* route_back_again = Utils->BestRouteTo(direction);
- if ((!route_back_again) || (route_back_again->GetSocket() != this))
- {
- if (route_back_again)
- Instance->Log(DEBUG,"Protocol violation: Fake direction in command '%s' from connection '%s'",line.c_str(),this->GetName().c_str());
- return true;
- }
- /* Fix by brain:
- * When there is activity on the socket, reset the ping counter so
- * that we're not wasting bandwidth pinging an active server.
- */
- route_back_again->SetNextPingTime(time(NULL) + 60);
- route_back_again->SetPingFlag();
- }
-
- if (command == "SVSMODE")
- {
- /* Services expects us to implement
- * SVSMODE. In inspircd its the same as
- * MODE anyway.
- */
- command = "MODE";
- }
- std::string target = "";
- /* Yes, know, this is a mess. Its reasonably fast though as we're
- * working with std::string here.
- */
- if ((command == "NICK") && (params.size() > 1))
- {
- return this->IntroduceClient(prefix,params);
- }
- else if (command == "FJOIN")
- {
- return this->ForceJoin(prefix,params);
- }
- else if (command == "STATS")
- {
- return this->Stats(prefix, params);
- }
- else if (command == "MOTD")
- {
- return this->Motd(prefix, params);
- }
- else if (command == "ADMIN")
- {
- return this->Admin(prefix, params);
- }
- else if (command == "SERVER")
- {
- return this->RemoteServer(prefix,params);
- }
- else if (command == "ERROR")
- {
- return this->Error(params);
- }
- else if (command == "OPERTYPE")
- {
- return this->OperType(prefix,params);
- }
- else if (command == "FMODE")
- {
- return this->ForceMode(prefix,params);
- }
- else if (command == "KILL")
- {
- return this->RemoteKill(prefix,params);
- }
- else if (command == "FTOPIC")
- {
- return this->ForceTopic(prefix,params);
- }
- else if (command == "REHASH")
- {
- return this->RemoteRehash(prefix,params);
- }
- else if (command == "METADATA")
- {
- return this->MetaData(prefix,params);
- }
- else if (command == "REMSTATUS")
- {
- return this->RemoveStatus(prefix,params);
- }
- else if (command == "PING")
- {
- /*
- * We just got a ping from a server that's bursting.
- * This can't be right, so set them to not bursting, and
- * apply their lines.
- */
- if (this->bursting)
- {
- this->bursting = false;
- Instance->XLines->apply_lines(Utils->lines_to_apply);
- Utils->lines_to_apply = 0;
- }
- if (prefix == "")
- {
- prefix = this->GetName();
- }
- return this->LocalPing(prefix,params);
- }
- else if (command == "PONG")
- {
- /*
- * We just got a pong from a server that's bursting.
- * This can't be right, so set them to not bursting, and
- * apply their lines.
- */
- if (this->bursting)
- {
- this->bursting = false;
- Instance->XLines->apply_lines(Utils->lines_to_apply);
- Utils->lines_to_apply = 0;
- }
- if (prefix == "")
- {
- prefix = this->GetName();
- }
- return this->LocalPong(prefix,params);
- }
- else if (command == "VERSION")
- {
- return this->ServerVersion(prefix,params);
- }
- else if (command == "FHOST")
- {
- return this->ChangeHost(prefix,params);
- }
- else if (command == "FNAME")
- {
- return this->ChangeName(prefix,params);
- }
- else if (command == "ADDLINE")
- {
- return this->AddLine(prefix,params);
- }
- else if (command == "SVSNICK")
- {
- if (prefix == "")
- {
- prefix = this->GetName();
- }
- return this->ForceNick(prefix,params);
- }
- else if (command == "RSQUIT")
- {
- return this->RemoteSquit(prefix, params);
- }
- else if (command == "IDLE")
- {
- return this->Whois(prefix,params);
- }
- else if (command == "PUSH")
- {
- return this->Push(prefix,params);
- }
- else if (command == "TIMESET")
- {
- return this->HandleSetTime(prefix, params);
- }
- else if (command == "TIME")
- {
- return this->Time(prefix,params);
- }
- else if ((command == "KICK") && (Utils->IsServer(prefix)))
- {
- std::string sourceserv = this->myhost;
- if (params.size() == 3)
- {
- userrec* user = this->Instance->FindNick(params[1]);
- chanrec* chan = this->Instance->FindChan(params[0]);
- if (user && chan)
- {
- if (!chan->ServerKickUser(user, params[2].c_str(), false))
- /* Yikes, the channels gone! */
- delete chan;
- }
- }
- if (this->InboundServerName != "")
- {
- sourceserv = this->InboundServerName;
- }
- return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
- }
- else if (command == "SVSJOIN")
- {
- if (prefix == "")
- {
- prefix = this->GetName();
- }
- return this->ServiceJoin(prefix,params);
- }
- else if (command == "SQUIT")
- {
- if (params.size() == 2)
- {
- this->Squit(Utils->FindServer(params[0]),params[1]);
- }
- return true;
- }
- else if (command == "OPERNOTICE")
- {
- std::string sourceserv = this->myhost;
- if (this->InboundServerName != "")
- sourceserv = this->InboundServerName;
- if (params.size() >= 1)
- Instance->WriteOpers("*** From " + sourceserv + ": " + params[0]);
- return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
- }
- else if (command == "MODENOTICE")
- {
- std::string sourceserv = this->myhost;
- if (this->InboundServerName != "")
- sourceserv = this->InboundServerName;
- if (params.size() >= 2)
- {
- Instance->WriteMode(params[0].c_str(), WM_AND, "*** From %s: %s", sourceserv.c_str(), params[1].c_str());
- }
- return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
- }
- else if (command == "SNONOTICE")
- {
- std::string sourceserv = this->myhost;
- if (this->InboundServerName != "")
- sourceserv = this->InboundServerName;
- if (params.size() >= 2)
- {
- Instance->SNO->WriteToSnoMask(*(params[0].c_str()), "From " + sourceserv + ": "+ params[1]);
- }
- return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
- }
- else if (command == "ENDBURST")
- {
- this->bursting = false;
- Instance->XLines->apply_lines(Utils->lines_to_apply);
- Utils->lines_to_apply = 0;
- std::string sourceserv = this->myhost;
- if (this->InboundServerName != "")
- {
- sourceserv = this->InboundServerName;
- }
- this->Instance->SNO->WriteToSnoMask('l',"Received end of netburst from \2%s\2",sourceserv.c_str());
-
- Event rmode((char*)sourceserv.c_str(), (Module*)Utils->Creator, "new_server");
- rmode.Send(Instance);
-
- return true;
- }
- else
- {
- // not a special inter-server command.
- // Emulate the actual user doing the command,
- // this saves us having a huge ugly parser.
- userrec* who = this->Instance->FindNick(prefix);
- std::string sourceserv = this->myhost;
- if (this->InboundServerName != "")
- {
- sourceserv = this->InboundServerName;
- }
- if ((!who) && (command == "MODE"))
- {
- if (Utils->IsServer(prefix))
- {
- const char* modelist[127];
- for (size_t i = 0; i < params.size(); i++)
- modelist[i] = params[i].c_str();
- userrec* fake = new userrec(Instance);
- fake->SetFd(FD_MAGIC_NUMBER);
- this->Instance->SendMode(modelist, params.size(), fake);
-
- delete fake;
- /* Hot potato! pass it on! */
- return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
- }
- }
- if (who)
- {
- if ((command == "NICK") && (params.size() > 0))
- {
- /* On nick messages, check that the nick doesnt
- * already exist here. If it does, kill their copy,
- * and our copy.
- */
- userrec* x = this->Instance->FindNick(params[0]);
- if ((x) && (x != who))
- {
- std::deque<std::string> p;
- p.push_back(params[0]);
- p.push_back("Nickname collision ("+prefix+" -> "+params[0]+")");
- Utils->DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
- p.clear();
- p.push_back(prefix);
- p.push_back("Nickname collision");
- Utils->DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
- userrec::QuitUser(this->Instance,x,"Nickname collision ("+prefix+" -> "+params[0]+")");
- userrec* y = this->Instance->FindNick(prefix);
- if (y)
- {
- userrec::QuitUser(this->Instance,y,"Nickname collision");
- }
- return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
- }
- }
- // its a user
- target = who->server;
- const char* strparams[127];
- for (unsigned int q = 0; q < params.size(); q++)
- {
- strparams[q] = params[q].c_str();
- }
- switch (this->Instance->CallCommandHandler(command.c_str(), strparams, params.size(), who))
- {
- case CMD_INVALID:
- this->WriteLine("ERROR :Unrecognised command '"+std::string(command.c_str())+"' -- possibly loaded mismatched modules");
- return false;
- break;
- case CMD_FAILURE:
- return true;
- break;
- default:
- /* CMD_SUCCESS and CMD_USER_DELETED fall through here */
- break;
- }
- }
- else
- {
- // its not a user. Its either a server, or somethings screwed up.
- if (Utils->IsServer(prefix))
- target = this->Instance->Config->ServerName;
- else
- return true;
- }
- return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
-
- }
- return true;
- break;
- }
- return true;
-}
-
-std::string TreeSocket::GetName()
-{
- std::string sourceserv = this->myhost;
- if (this->InboundServerName != "")
- {
- sourceserv = this->InboundServerName;
- }
- return sourceserv;
-}
-
-void TreeSocket::OnTimeout()
-{
- if (this->LinkState == CONNECTING)
- {
- this->Instance->SNO->WriteToSnoMask('l',"CONNECT: Connection to \002"+myhost+"\002 timed out.");
- Link* MyLink = Utils->FindLink(myhost);
- if (MyLink)
- Utils->DoFailOver(MyLink);
- }
-}
-
-void TreeSocket::OnClose()
-{
- // Connection closed.
- // If the connection is fully up (state CONNECTED)
- // then propogate a netsplit to all peers.
- std::string quitserver = this->myhost;
- if (this->InboundServerName != "")
- {
- quitserver = this->InboundServerName;
- }
- TreeServer* s = Utils->FindServer(quitserver);
- if (s)
- {
- Squit(s,"Remote host closed the connection");
- }
-
- if (quitserver != "")
- this->Instance->SNO->WriteToSnoMask('l',"Connection to '\2%s\2' failed.",quitserver.c_str());
-}
-
-int TreeSocket::OnIncomingConnection(int newsock, char* ip)
-{
- /* To prevent anyone from attempting to flood opers/DDoS by connecting to the server port,
- * or discovering if this port is the server port, we don't allow connections from any
- * IPs for which we don't have a link block.
- */
- bool found = false;
-
- found = (std::find(Utils->ValidIPs.begin(), Utils->ValidIPs.end(), ip) != Utils->ValidIPs.end());
- if (!found)
- {
- for (vector<std::string>::iterator i = Utils->ValidIPs.begin(); i != Utils->ValidIPs.end(); i++)
- if (irc::sockets::MatchCIDR(ip, (*i).c_str()))
- found = true;
-
- if (!found)
- {
- this->Instance->SNO->WriteToSnoMask('l',"Server connection from %s denied (no link blocks with that IP address)", ip);
- close(newsock);
- return false;
- }
- }
-
- TreeSocket* s = new TreeSocket(this->Utils, this->Instance, newsock, ip, this->Hook);
- s = s; /* Whinge whinge whinge, thats all GCC ever does. */
- return true;
-}
-
/** This class is used to resolve server hostnames during /connect and autoconnect.
* As of 1.1, the resolver system is seperated out from InspSocket, so we must do this
* resolver step first ourselves if we need it. This is totally nonblocking, and will
@@ -3029,30 +144,6 @@ class TimeSyncTimer : public InspTimer
virtual void Tick(time_t TIME);
};
-HandshakeTimer::HandshakeTimer(InspIRCd* Inst, TreeSocket* s, Link* l, SpanningTreeUtilities* u) : InspTimer(1, time(NULL)), Instance(Inst), sock(s), lnk(l), Utils(u)
-{
- thefd = sock->GetFd();
-}
-
-void HandshakeTimer::Tick(time_t TIME)
-{
- if (Instance->SE->GetRef(thefd) == sock)
- {
- if (sock->GetHook() && InspSocketHSCompleteRequest(sock, (Module*)Utils->Creator, sock->GetHook()).Send())
- {
- InspSocketAttachCertRequest(sock, (Module*)Utils->Creator, sock->GetHook()).Send();
- sock->SendCapabilities();
- if (sock->GetLinkState() == CONNECTING)
- {
- sock->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+lnk->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
- }
- }
- else
- {
- Instance->Timers->AddTimer(new HandshakeTimer(Instance, sock, lnk, Utils));
- }
- }
-}
ModuleSpanningTree::ModuleSpanningTree(InspIRCd* Me)
: Module::Module(Me), max_local(0), max_global(0)
diff --git a/src/modules/m_spanningtree/main.h b/src/modules/m_spanningtree/main.h
new file mode 100644
index 000000000..dd0e6b4e0
--- /dev/null
+++ b/src/modules/m_spanningtree/main.h
@@ -0,0 +1,98 @@
+#ifndef __ST_MAIN__
+#define __ST_MAIN__
+
+#include "inspircd.h"
+#include "modules.h"
+
+/** If you make a change which breaks the protocol, increment this.
+ * If you completely change the protocol, completely change the number.
+ *
+ * IMPORTANT: If you make changes, document your changes here, without fail:
+ * http://www.inspircd.org/wiki/List_of_protocol_changes_between_versions
+ *
+ * Failure to document your protocol changes will result in a painfully
+ * painful death by pain. You have been warned.
+ */
+const long ProtocolVersion = 1103;
+
+
+class cmd_rconnect;
+class SpanningTreeUtilities;
+class TimeSyncTimer;
+class TreeServer;
+class Link;
+
+class ModuleSpanningTree : public Module
+{
+ int line;
+ int NumServers;
+ unsigned int max_local;
+ unsigned int max_global;
+ cmd_rconnect* command_rconnect;
+ SpanningTreeUtilities* Utils;
+
+ public:
+ TimeSyncTimer *SyncTimer;
+ ModuleSpanningTree(InspIRCd* Me);
+ void ShowLinks(TreeServer* Current, userrec* user, int hops);
+ int CountLocalServs();
+ int CountServs();
+ void HandleLinks(const char** parameters, int pcnt, userrec* user);
+ void HandleLusers(const char** parameters, int pcnt, userrec* user);
+ void ShowMap(TreeServer* Current, userrec* user, int depth, char matrix[128][80], float &totusers, float &totservers);
+ int HandleMotd(const char** parameters, int pcnt, userrec* user);
+ int HandleAdmin(const char** parameters, int pcnt, userrec* user);
+ int HandleStats(const char** parameters, int pcnt, userrec* user);
+ void HandleMap(const char** parameters, int pcnt, userrec* user);
+ int HandleSquit(const char** parameters, int pcnt, userrec* user);
+ int HandleTime(const char** parameters, int pcnt, userrec* user);
+ int HandleRemoteWhois(const char** parameters, int pcnt, userrec* user);
+ void DoPingChecks(time_t curtime);
+ void ConnectServer(Link* x);
+ void AutoConnectServers(time_t curtime);
+ int HandleVersion(const char** parameters, int pcnt, userrec* user);
+ int HandleConnect(const char** parameters, int pcnt, userrec* user);
+ void BroadcastTimeSync();
+ virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated, const std::string &original_line);
+ virtual void OnPostCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, CmdResult result, const std::string &original_line);
+ virtual void OnGetServerDescription(const std::string &servername,std::string &description);
+ virtual void OnUserInvite(userrec* source,userrec* dest,chanrec* channel);
+ virtual void OnPostLocalTopicChange(userrec* user, chanrec* chan, const std::string &topic);
+ virtual void OnWallops(userrec* user, const std::string &text);
+ virtual void OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list);
+ virtual void OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list);
+ virtual void OnBackgroundTimer(time_t curtime);
+ virtual void OnUserJoin(userrec* user, chanrec* channel);
+ virtual void OnChangeHost(userrec* user, const std::string &newhost);
+ virtual void OnChangeName(userrec* user, const std::string &gecos);
+ virtual void OnUserPart(userrec* user, chanrec* channel, const std::string &partmessage);
+ virtual void OnUserConnect(userrec* user);
+ virtual void OnUserQuit(userrec* user, const std::string &reason);
+ virtual void OnUserPostNick(userrec* user, const std::string &oldnick);
+ virtual void OnUserKick(userrec* source, userrec* user, chanrec* chan, const std::string &reason);
+ virtual void OnRemoteKill(userrec* source, userrec* dest, const std::string &reason);
+ virtual void OnRehash(userrec* user, const std::string &parameter);
+ virtual void OnOper(userrec* user, const std::string &opertype);
+ void OnLine(userrec* source, const std::string &host, bool adding, char linetype, long duration, const std::string &reason);
+ virtual void OnAddGLine(long duration, userrec* source, const std::string &reason, const std::string &hostmask);
+ virtual void OnAddZLine(long duration, userrec* source, const std::string &reason, const std::string &ipmask);
+ virtual void OnAddQLine(long duration, userrec* source, const std::string &reason, const std::string &nickmask);
+ virtual void OnAddELine(long duration, userrec* source, const std::string &reason, const std::string &hostmask);
+ virtual void OnDelGLine(userrec* source, const std::string &hostmask);
+ virtual void OnDelZLine(userrec* source, const std::string &ipmask);
+ virtual void OnDelQLine(userrec* source, const std::string &nickmask);
+ virtual void OnDelELine(userrec* source, const std::string &hostmask);
+ virtual void OnMode(userrec* user, void* dest, int target_type, const std::string &text);
+ virtual int OnStats(char statschar, userrec* user, string_list &results);
+ virtual void OnSetAway(userrec* user);
+ virtual void OnCancelAway(userrec* user);
+ virtual void ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline);
+ virtual void ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata);
+ virtual void OnEvent(Event* event);
+ virtual ~ModuleSpanningTree();
+ virtual Version GetVersion();
+ void Implements(char* List);
+ Priority Prioritize();
+};
+
+#endif
diff --git a/src/modules/m_spanningtree/resolvers.h b/src/modules/m_spanningtree/resolvers.h
new file mode 100644
index 000000000..dd7a9a215
--- /dev/null
+++ b/src/modules/m_spanningtree/resolvers.h
@@ -0,0 +1,43 @@
+#ifndef __RESOLVERS__H__
+#define __RESOLVERS__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 "inspircd.h"
+#include "wildcard.h"
+#include "xline.h"
+#include "transport.h"
+
+#include "m_spanningtree/utils.h"
+
+/** Handle resolving of server IPs for the cache
+ */
+class SecurityIPResolver : public Resolver
+{
+ private:
+ Link MyLink;
+ SpanningTreeUtilities* Utils;
+ public:
+ SecurityIPResolver(Module* me, SpanningTreeUtilities* U, InspIRCd* Instance, const std::string &hostname, Link x, bool &cached) : Resolver(Instance, hostname, DNS_QUERY_FORWARD, cached, me),
+MyLink(x),
+ Utils(U)
+ {
+ }
+
+ void OnLookupComplete(const std::string &result, unsigned int ttl, bool cached)
+ {
+ Utils->ValidIPs.push_back(result);
+ }
+
+ void OnError(ResolverError e, const std::string &errormessage)
+ {
+ ServerInstance->Log(DEFAULT,"Could not resolve IP associated with Link '%s': %s",MyLink.Name.c_str(),errormessage.c_str());
+ }
+};
+
+#endif
diff --git a/src/modules/m_spanningtree/treeserver.cpp b/src/modules/m_spanningtree/treeserver.cpp
new file mode 100644
index 000000000..f991501f4
--- /dev/null
+++ b/src/modules/m_spanningtree/treeserver.cpp
@@ -0,0 +1,297 @@
+#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 "inspircd.h"
+#include "wildcard.h"
+#include "xline.h"
+#include "transport.h"
+
+#include "m_spanningtree/utils.h"
+#include "m_spanningtree/treeserver.h"
+
+ TreeServer::TreeServer(SpanningTreeUtilities* Util, InspIRCd* Instance) : ServerInstance(Instance), Utils(Util)
+ {
+ Parent = NULL;
+ ServerName = "";
+ ServerDesc = "";
+ VersionString = "";
+ UserCount = OperCount = 0;
+ VersionString = ServerInstance->GetVersionString();
+ }
+
+ /** We use this constructor only to create the 'root' item, Utils->TreeRoot, which
+ * represents our own server. Therefore, it has no route, no parent, and
+ * no socket associated with it. Its version string is our own local version.
+ */
+ TreeServer::TreeServer(SpanningTreeUtilities* Util, InspIRCd* Instance, std::string Name, std::string Desc) : ServerInstance(Instance), ServerName(Name.c_str()), ServerDesc(Desc), Utils(Util)
+ {
+ Parent = NULL;
+ VersionString = "";
+ UserCount = ServerInstance->UserCount();
+ OperCount = ServerInstance->OperCount();
+ VersionString = ServerInstance->GetVersionString();
+ Route = NULL;
+ Socket = NULL; /* Fix by brain */
+ AddHashEntry();
+ }
+
+ /** When we create a new server, we call this constructor to initialize it.
+ * This constructor initializes the server's Route and Parent, and sets up
+ * its ping counters so that it will be pinged one minute from now.
+ */
+ TreeServer::TreeServer(SpanningTreeUtilities* Util, InspIRCd* Instance, std::string Name, std::string Desc, TreeServer* Above, TreeSocket* Sock)
+ : ServerInstance(Instance), Parent(Above), ServerName(Name.c_str()), ServerDesc(Desc), Socket(Sock), Utils(Util)
+ {
+ VersionString = "";
+ UserCount = OperCount = 0;
+ this->SetNextPingTime(time(NULL) + 60);
+ this->SetPingFlag();
+
+ /* find the 'route' for this server (e.g. the one directly connected
+ * to the local server, which we can use to reach it)
+ *
+ * In the following example, consider we have just added a TreeServer
+ * class for server G on our network, of which we are server A.
+ * To route traffic to G (marked with a *) we must send the data to
+ * B (marked with a +) so this algorithm initializes the 'Route'
+ * value to point at whichever server traffic must be routed through
+ * to get here. If we were to try this algorithm with server B,
+ * the Route pointer would point at its own object ('this').
+ *
+ * A
+ * / \
+ * + B C
+ * / \ \
+ * D E F
+ * / \
+ * * G H
+ *
+ * We only run this algorithm when a server is created, as
+ * the routes remain constant while ever the server exists, and
+ * do not need to be re-calculated.
+ */
+
+ Route = Above;
+ if (Route == Utils->TreeRoot)
+ {
+ Route = this;
+ }
+ else
+ {
+ while (this->Route->GetParent() != Utils->TreeRoot)
+ {
+ this->Route = Route->GetParent();
+ }
+ }
+
+ /* Because recursive code is slow and takes a lot of resources,
+ * we store two representations of the server tree. The first
+ * is a recursive structure where each server references its
+ * children and its parent, which is used for netbursts and
+ * netsplits to dump the whole dataset to the other server,
+ * and the second is used for very fast lookups when routing
+ * messages and is instead a hash_map, where each item can
+ * be referenced by its server name. The AddHashEntry()
+ * call below automatically inserts each TreeServer class
+ * into the hash_map as it is created. There is a similar
+ * maintainance call in the destructor to tidy up deleted
+ * servers.
+ */
+
+ this->AddHashEntry();
+ }
+
+ int TreeServer::QuitUsers(const std::string &reason)
+ {
+ const char* reason_s = reason.c_str();
+ std::vector<userrec*> time_to_die;
+ for (user_hash::iterator n = ServerInstance->clientlist->begin(); n != ServerInstance->clientlist->end(); n++)
+ {
+ if (!strcmp(n->second->server, this->ServerName.c_str()))
+ {
+ time_to_die.push_back(n->second);
+ }
+ }
+ for (std::vector<userrec*>::iterator n = time_to_die.begin(); n != time_to_die.end(); n++)
+ {
+ userrec* a = (userrec*)*n;
+ if (!IS_LOCAL(a))
+ userrec::QuitUser(ServerInstance,a,reason_s);
+ }
+ return time_to_die.size();
+ }
+
+ /** This method is used to add the structure to the
+ * hash_map for linear searches. It is only called
+ * by the constructors.
+ */
+ void TreeServer::AddHashEntry()
+ {
+ server_hash::iterator iter = Utils->serverlist.find(this->ServerName.c_str());
+ if (iter == Utils->serverlist.end())
+ Utils->serverlist[this->ServerName.c_str()] = this;
+ }
+
+ /** This method removes the reference to this object
+ * from the hash_map which is used for linear searches.
+ * It is only called by the default destructor.
+ */
+ void TreeServer::DelHashEntry()
+ {
+ server_hash::iterator iter = Utils->serverlist.find(this->ServerName.c_str());
+ if (iter != Utils->serverlist.end())
+ Utils->serverlist.erase(iter);
+ }
+
+ /** These accessors etc should be pretty self-
+ * explanitory.
+ */
+ TreeServer* TreeServer::GetRoute()
+ {
+ return Route;
+ }
+
+ std::string TreeServer::GetName()
+ {
+ return ServerName.c_str();
+ }
+
+ std::string TreeServer::GetDesc()
+ {
+ return ServerDesc;
+ }
+
+ std::string TreeServer::GetVersion()
+ {
+ return VersionString;
+ }
+
+ void TreeServer::SetNextPingTime(time_t t)
+ {
+ this->NextPing = t;
+ LastPingWasGood = false;
+ }
+
+ time_t TreeServer::NextPingTime()
+ {
+ return NextPing;
+ }
+
+ bool TreeServer::AnsweredLastPing()
+ {
+ return LastPingWasGood;
+ }
+
+ void TreeServer::SetPingFlag()
+ {
+ LastPingWasGood = true;
+ }
+
+ int TreeServer::GetUserCount()
+ {
+ return UserCount;
+ }
+
+ void TreeServer::AddUserCount()
+ {
+ UserCount++;
+ }
+
+ void TreeServer::DelUserCount()
+ {
+ UserCount--;
+ }
+
+ int TreeServer::GetOperCount()
+ {
+ return OperCount;
+ }
+
+ TreeSocket* TreeServer::GetSocket()
+ {
+ return Socket;
+ }
+
+ TreeServer* TreeServer::GetParent()
+ {
+ return Parent;
+ }
+
+ void TreeServer::SetVersion(const std::string &Version)
+ {
+ VersionString = Version;
+ }
+
+ unsigned int TreeServer::ChildCount()
+ {
+ return Children.size();
+ }
+
+ TreeServer* TreeServer::GetChild(unsigned int n)
+ {
+ if (n < Children.size())
+ {
+ /* Make sure they cant request
+ * an out-of-range object. After
+ * all we know what these programmer
+ * types are like *grin*.
+ */
+ return Children[n];
+ }
+ else
+ {
+ return NULL;
+ }
+ }
+
+ void TreeServer::AddChild(TreeServer* Child)
+ {
+ Children.push_back(Child);
+ }
+
+ bool TreeServer::DelChild(TreeServer* Child)
+ {
+ for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
+ {
+ if (*a == Child)
+ {
+ Children.erase(a);
+ return true;
+ }
+ }
+ return false;
+ }
+
+ /** Removes child nodes of this node, and of that node, etc etc.
+ * This is used during netsplits to automatically tidy up the
+ * server tree. It is slow, we don't use it for much else.
+ */
+ bool TreeServer::Tidy()
+ {
+ bool stillchildren = true;
+ while (stillchildren)
+ {
+ stillchildren = false;
+ for (std::vector<TreeServer*>::iterator a = Children.begin(); a < Children.end(); a++)
+ {
+ TreeServer* s = (TreeServer*)*a;
+ s->Tidy();
+ Children.erase(a);
+ DELETE(s);
+ stillchildren = true;
+ break;
+ }
+ }
+ return true;
+ }
+
+ TreeServer::~TreeServer()
+ {
+ /* We'd better tidy up after ourselves, eh? */
+ this->DelHashEntry();
+ }
+
diff --git a/src/modules/m_spanningtree/treeserver.h b/src/modules/m_spanningtree/treeserver.h
new file mode 100644
index 000000000..952ab31b5
--- /dev/null
+++ b/src/modules/m_spanningtree/treeserver.h
@@ -0,0 +1,100 @@
+#ifndef __TREESERVER_H__
+#define __TREESERVER_H__
+
+/** Each server in the tree is represented by one class of
+ * type TreeServer. A locally connected TreeServer can
+ * have a class of type TreeSocket associated with it, for
+ * remote servers, the TreeSocket entry will be NULL.
+ * Each server also maintains a pointer to its parent
+ * (NULL if this server is ours, at the top of the tree)
+ * and a pointer to its "Route" (see the comments in the
+ * constructors below), and also a dynamic list of pointers
+ * to its children which can be iterated recursively
+ * if required. Creating or deleting objects of type
+ i* TreeServer automatically maintains the hash_map of
+ * TreeServer items, deleting and inserting them as they
+ * are created and destroyed.
+ */
+class TreeServer : public classbase
+{
+ InspIRCd* ServerInstance; /* Creator */
+ TreeServer* Parent; /* Parent entry */
+ TreeServer* Route; /* Route entry */
+ std::vector<TreeServer*> Children; /* List of child objects */
+ irc::string ServerName; /* Server's name */
+ std::string ServerDesc; /* Server's description */
+ std::string VersionString; /* Version string or empty string */
+ int UserCount; /* Not used in this version */
+ int OperCount; /* Not used in this version */
+ TreeSocket* Socket; /* For directly connected servers this points at the socket object */
+ time_t NextPing; /* After this time, the server should be PINGed*/
+ bool LastPingWasGood; /* True if the server responded to the last PING with a PONG */
+ SpanningTreeUtilities* Utils; /* Utility class */
+
+ public:
+
+ /** We don't use this constructor. Its a dummy, and won't cause any insertion
+ * of the TreeServer into the hash_map. See below for the two we DO use.
+ */
+ TreeServer(SpanningTreeUtilities* Util, InspIRCd* Instance);
+
+ /** We use this constructor only to create the 'root' item, Utils->TreeRoot, which
+ * represents our own server. Therefore, it has no route, no parent, and
+ * no socket associated with it. Its version string is our own local version.
+ */
+ TreeServer(SpanningTreeUtilities* Util, InspIRCd* Instance, std::string Name, std::string Desc);
+
+ /** When we create a new server, we call this constructor to initialize it.
+ * This constructor initializes the server's Route and Parent, and sets up
+ * its ping counters so that it will be pinged one minute from now.
+ */
+ TreeServer(SpanningTreeUtilities* Util, InspIRCd* Instance, std::string Name, std::string Desc, TreeServer* Above, TreeSocket* Sock);
+
+ int QuitUsers(const std::string &reason);
+
+ /** This method is used to add the structure to the
+ * hash_map for linear searches. It is only called
+ * by the constructors.
+ */
+ void AddHashEntry();
+
+ /** This method removes the reference to this object
+ * from the hash_map which is used for linear searches.
+ * It is only called by the default destructor.
+ */
+ void DelHashEntry();
+
+ /** These accessors etc should be pretty self-
+ * explanitory.
+ */
+ TreeServer* GetRoute();
+ std::string GetName();
+ std::string GetDesc();
+ std::string GetVersion();
+ void SetNextPingTime(time_t t);
+ time_t NextPingTime();
+ bool AnsweredLastPing();
+ void SetPingFlag();
+ int GetUserCount();
+ void AddUserCount();
+ void DelUserCount();
+ int GetOperCount();
+ TreeSocket* GetSocket();
+ TreeServer* GetParent();
+ void SetVersion(const std::string &Version);
+ unsigned int ChildCount();
+ TreeServer* GetChild(unsigned int n);
+ void AddChild(TreeServer* Child);
+ bool DelChild(TreeServer* Child);
+
+ /** Removes child nodes of this node, and of that node, etc etc.
+ * This is used during netsplits to automatically tidy up the
+ * server tree. It is slow, we don't use it for much else.
+ */
+ bool Tidy();
+
+ ~TreeServer();
+
+};
+
+#endif
diff --git a/src/modules/m_spanningtree/treesocket.cpp b/src/modules/m_spanningtree/treesocket.cpp
new file mode 100644
index 000000000..8d2027ab2
--- /dev/null
+++ b/src/modules/m_spanningtree/treesocket.cpp
@@ -0,0 +1,2878 @@
+#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 "inspircd.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"
+#include "m_spanningtree/handshaketimer.h"
+
+/** Because most of the I/O gubbins are encapsulated within
+ * InspSocket, we just call the superclass constructor for
+ * most of the action, and append a few of our own values
+ * to it.
+ */
+TreeSocket::TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime, Module* HookMod)
+ : InspSocket(SI, host, port, listening, maxtime), Utils(Util), Hook(HookMod)
+{
+ myhost = host;
+ this->LinkState = LISTENER;
+ if (listening && Hook)
+ InspSocketHookRequest(this, (Module*)Utils->Creator, Hook).Send();
+}
+
+TreeSocket::TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime, std::string ServerName, Module* HookMod)
+ : InspSocket(SI, host, port, listening, maxtime), Utils(Util), Hook(HookMod)
+{
+ myhost = ServerName;
+ this->LinkState = CONNECTING;
+ if (Hook)
+ InspSocketHookRequest(this, (Module*)Utils->Creator, Hook).Send();
+}
+
+/** When a listening socket gives us a new file descriptor,
+ * we must associate it with a socket without creating a new
+ * connection. This constructor is used for this purpose.
+ */
+TreeSocket::TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, int newfd, char* ip, Module* HookMod)
+ : InspSocket(SI, newfd, ip), Utils(Util), Hook(HookMod)
+{
+ this->LinkState = WAIT_AUTH_1;
+ /* If we have a transport module hooked to the parent, hook the same module to this
+ * socket, and set a timer waiting for handshake before we send CAPAB etc.
+ */
+ if (Hook)
+ {
+ InspSocketHookRequest(this, (Module*)Utils->Creator, Hook).Send();
+ Instance->Timers->AddTimer(new HandshakeTimer(Instance, this, &(Utils->LinkBlocks[0]), this->Utils));
+ }
+ else
+ {
+ /* Otherwise, theres no lower layer transport in plain TCP/IP,
+ * so just send the capabilities right now.
+ */
+ this->SendCapabilities();
+ }
+}
+
+ServerState TreeSocket::GetLinkState()
+{
+ return this->LinkState;
+}
+
+Module* TreeSocket::GetHook()
+{
+ return this->Hook;
+}
+
+TreeSocket::~TreeSocket()
+{
+ if (Hook)
+ InspSocketUnhookRequest(this, (Module*)Utils->Creator, Hook).Send();
+}
+
+/** When an outbound connection finishes connecting, we receive
+ * this event, and must send our SERVER string to the other
+ * side. If the other side is happy, as outlined in the server
+ * to server docs on the inspircd.org site, the other side
+ * will then send back its own server string.
+ */
+bool TreeSocket::OnConnected()
+{
+ if (this->LinkState == CONNECTING)
+ {
+ /* we do not need to change state here. */
+ for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
+ {
+ if (x->Name == this->myhost)
+ {
+ this->Instance->SNO->WriteToSnoMask('l',"Connection to \2"+myhost+"\2["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] started.");
+ if (Hook)
+ {
+ InspSocketHookRequest(this, (Module*)Utils->Creator, Hook).Send();
+ this->Instance->SNO->WriteToSnoMask('l',"Connection to \2"+myhost+"\2["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] using transport \2"+x->Hook+"\2");
+ }
+ else
+ this->SendCapabilities();
+ /* found who we're supposed to be connecting to, send the neccessary gubbins. */
+ if (Hook)
+ Instance->Timers->AddTimer(new HandshakeTimer(Instance, this, &(*x), this->Utils));
+ else
+ this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+x->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
+ return true;
+ }
+ }
+ }
+ /* There is a (remote) chance that between the /CONNECT and the connection
+ * being accepted, some muppet has removed the <link> block and rehashed.
+ * If that happens the connection hangs here until it's closed. Unlikely
+ * and rather harmless.
+ */
+ this->Instance->SNO->WriteToSnoMask('l',"Connection to \2"+myhost+"\2 lost link tag(!)");
+ return true;
+}
+
+void TreeSocket::OnError(InspSocketError e)
+{
+ /* We don't handle this method, because all our
+ * dirty work is done in OnClose() (see below)
+ * which is still called on error conditions too.
+ */
+ if (e == I_ERR_CONNECT)
+ {
+ this->Instance->SNO->WriteToSnoMask('l',"Connection failed: Connection to \002"+myhost+"\002 refused");
+ Link* MyLink = Utils->FindLink(myhost);
+ if (MyLink)
+ Utils->DoFailOver(MyLink);
+ }
+}
+
+int TreeSocket::OnDisconnect()
+{
+ /* For the same reason as above, we don't
+ * handle OnDisconnect()
+ */
+ return true;
+}
+
+/** Recursively send the server tree with distances as hops.
+ * 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.
+ */
+void TreeSocket::SendServers(TreeServer* Current, TreeServer* s, int hops)
+{
+ char command[1024];
+ for (unsigned int q = 0; q < Current->ChildCount(); q++)
+ {
+ TreeServer* recursive_server = Current->GetChild(q);
+ if (recursive_server != s)
+ {
+ snprintf(command,1024,":%s SERVER %s * %d :%s",Current->GetName().c_str(),recursive_server->GetName().c_str(),hops,recursive_server->GetDesc().c_str());
+ this->WriteLine(command);
+ this->WriteLine(":"+recursive_server->GetName()+" VERSION :"+recursive_server->GetVersion());
+ /* down to next level */
+ this->SendServers(recursive_server, s, hops+1);
+ }
+ }
+}
+
+std::string TreeSocket::MyCapabilities()
+{
+ std::vector<std::string> modlist;
+ std::string capabilities = "";
+ for (int i = 0; i <= this->Instance->GetModuleCount(); i++)
+ {
+ if (this->Instance->modules[i]->GetVersion().Flags & VF_COMMON)
+ modlist.push_back(this->Instance->Config->module_names[i]);
+ }
+ sort(modlist.begin(),modlist.end());
+ for (unsigned int i = 0; i < modlist.size(); i++)
+ {
+ if (i)
+ capabilities = capabilities + ",";
+ capabilities = capabilities + modlist[i];
+ }
+ return capabilities;
+}
+
+void TreeSocket::SendCapabilities()
+{
+ irc::commasepstream modulelist(MyCapabilities());
+ this->WriteLine("CAPAB START");
+
+ /* Send module names, split at 509 length */
+ std::string item = "*";
+ std::string line = "CAPAB MODULES ";
+ while ((item = modulelist.GetToken()) != "")
+ {
+ if (line.length() + item.length() + 1 > 509)
+ {
+ this->WriteLine(line);
+ line = "CAPAB MODULES ";
+ }
+
+ if (line != "CAPAB MODULES ")
+ line.append(",");
+
+ line.append(item);
+ }
+ if (line != "CAPAB MODULES ")
+ this->WriteLine(line);
+
+ int ip6 = 0;
+ int ip6support = 0;
+#ifdef IPV6
+ ip6 = 1;
+#endif
+#ifdef SUPPORT_IP6LINKS
+ ip6support = 1;
+#endif
+ this->WriteLine("CAPAB CAPABILITIES :NICKMAX="+ConvToStr(NICKMAX)+" HALFOP="+ConvToStr(this->Instance->Config->AllowHalfop)+" CHANMAX="+ConvToStr(CHANMAX)+" MAXMODES="+ConvToStr(MAXMODES)+" IDENTMAX="+ConvToStr(IDENTMAX)+" MAXQUIT="+ConvToStr(MAXQUIT)+" MAXTOPIC="+ConvToStr(MAXTOPIC)+" MAXKICK="+ConvToStr(MAXKICK)+" MAXGECOS="+ConvToStr(MAXGECOS)+" MAXAWAY="+ConvToStr(MAXAWAY)+" IP6NATIVE="+ConvToStr(ip6)+" IP6SUPPORT="+ConvToStr(ip6support)+" PROTOCOL="+ConvToStr(ProtocolVersion));
+
+ this->WriteLine("CAPAB END");
+}
+
+/* Check a comma seperated list for an item */
+bool TreeSocket::HasItem(const std::string &list, const std::string &item)
+{
+ irc::commasepstream seplist(list);
+ std::string item2 = "*";
+ while ((item2 = seplist.GetToken()) != "")
+ {
+ if (item2 == item)
+ return true;
+ }
+ return false;
+}
+
+/* Isolate and return the elements that are different between two comma seperated lists */
+std::string TreeSocket::ListDifference(const std::string &one, const std::string &two)
+{
+ irc::commasepstream list_one(one);
+ std::string item = "*";
+ std::string result = "";
+ while ((item = list_one.GetToken()) != "")
+ {
+ if (!HasItem(two, item))
+ {
+ result.append(" ");
+ result.append(item);
+ }
+ }
+ return result;
+}
+
+bool TreeSocket::Capab(const std::deque<std::string> &params)
+{
+ if (params.size() < 1)
+ {
+ this->WriteLine("ERROR :Invalid number of parameters for CAPAB - Mismatched version");
+ return false;
+ }
+ if (params[0] == "START")
+ {
+ this->ModuleList = "";
+ this->CapKeys.clear();
+ }
+ else if (params[0] == "END")
+ {
+ std::string reason = "";
+ int ip6support = 0;
+#ifdef SUPPORT_IP6LINKS
+ ip6support = 1;
+#endif
+ /* Compare ModuleList and check CapKeys...
+ * Maybe this could be tidier? -- Brain
+ */
+ if ((this->ModuleList != this->MyCapabilities()) && (this->ModuleList.length()))
+ {
+ std::string diff = ListDifference(this->ModuleList, this->MyCapabilities());
+ if (!diff.length())
+ {
+ diff = "your server:" + ListDifference(this->MyCapabilities(), this->ModuleList);
+ }
+ else
+ {
+ diff = "this server:" + diff;
+ }
+ if (diff.length() == 12)
+ reason = "Module list in CAPAB is not alphabetically ordered, cannot compare lists.";
+ else
+ reason = "Modules loaded on these servers are not correctly matched, these modules are not loaded on " + diff;
+ }
+ if (((this->CapKeys.find("IP6SUPPORT") == this->CapKeys.end()) && (ip6support)) || ((this->CapKeys.find("IP6SUPPORT") != this->CapKeys.end()) && (this->CapKeys.find("IP6SUPPORT")->second != ConvToStr(ip6support))))
+ reason = "We don't both support linking to IPV6 servers";
+ if (((this->CapKeys.find("IP6NATIVE") != this->CapKeys.end()) && (this->CapKeys.find("IP6NATIVE")->second == "1")) && (!ip6support))
+ reason = "The remote server is IPV6 native, and we don't support linking to IPV6 servers";
+ if (((this->CapKeys.find("NICKMAX") == this->CapKeys.end()) || ((this->CapKeys.find("NICKMAX") != this->CapKeys.end()) && (this->CapKeys.find("NICKMAX")->second != ConvToStr(NICKMAX)))))
+ reason = "Maximum nickname lengths differ or remote nickname length not specified";
+ if (((this->CapKeys.find("PROTOCOL") == this->CapKeys.end()) || ((this->CapKeys.find("PROTOCOL") != this->CapKeys.end()) && (this->CapKeys.find("PROTOCOL")->second != ConvToStr(ProtocolVersion)))))
+ {
+ if (this->CapKeys.find("PROTOCOL") != this->CapKeys.end())
+ {
+ reason = "Mismatched protocol versions "+this->CapKeys.find("PROTOCOL")->second+" and "+ConvToStr(ProtocolVersion);
+ }
+ else
+ {
+ reason = "Protocol version not specified";
+ }
+ }
+ if (((this->CapKeys.find("HALFOP") == this->CapKeys.end()) && (Instance->Config->AllowHalfop)) || ((this->CapKeys.find("HALFOP") != this->CapKeys.end()) && (this->CapKeys.find("HALFOP")->second != ConvToStr(Instance->Config->AllowHalfop))))
+ reason = "We don't both have halfop support enabled/disabled identically";
+ if (((this->CapKeys.find("IDENTMAX") == this->CapKeys.end()) || ((this->CapKeys.find("IDENTMAX") != this->CapKeys.end()) && (this->CapKeys.find("IDENTMAX")->second != ConvToStr(IDENTMAX)))))
+ reason = "Maximum ident lengths differ or remote ident length not specified";
+ if (((this->CapKeys.find("CHANMAX") == this->CapKeys.end()) || ((this->CapKeys.find("CHANMAX") != this->CapKeys.end()) && (this->CapKeys.find("CHANMAX")->second != ConvToStr(CHANMAX)))))
+ reason = "Maximum channel lengths differ or remote channel length not specified";
+ if (((this->CapKeys.find("MAXMODES") == this->CapKeys.end()) || ((this->CapKeys.find("MAXMODES") != this->CapKeys.end()) && (this->CapKeys.find("MAXMODES")->second != ConvToStr(MAXMODES)))))
+ reason = "Maximum modes per line differ or remote modes per line not specified";
+ if (((this->CapKeys.find("MAXQUIT") == this->CapKeys.end()) || ((this->CapKeys.find("MAXQUIT") != this->CapKeys.end()) && (this->CapKeys.find("MAXQUIT")->second != ConvToStr(MAXQUIT)))))
+ reason = "Maximum quit lengths differ or remote quit length not specified";
+ if (((this->CapKeys.find("MAXTOPIC") == this->CapKeys.end()) || ((this->CapKeys.find("MAXTOPIC") != this->CapKeys.end()) && (this->CapKeys.find("MAXTOPIC")->second != ConvToStr(MAXTOPIC)))))
+ reason = "Maximum topic lengths differ or remote topic length not specified";
+ if (((this->CapKeys.find("MAXKICK") == this->CapKeys.end()) || ((this->CapKeys.find("MAXKICK") != this->CapKeys.end()) && (this->CapKeys.find("MAXKICK")->second != ConvToStr(MAXKICK)))))
+ reason = "Maximum kick lengths differ or remote kick length not specified";
+ if (((this->CapKeys.find("MAXGECOS") == this->CapKeys.end()) || ((this->CapKeys.find("MAXGECOS") != this->CapKeys.end()) && (this->CapKeys.find("MAXGECOS")->second != ConvToStr(MAXGECOS)))))
+ reason = "Maximum GECOS (fullname) lengths differ or remote GECOS length not specified";
+ if (((this->CapKeys.find("MAXAWAY") == this->CapKeys.end()) || ((this->CapKeys.find("MAXAWAY") != this->CapKeys.end()) && (this->CapKeys.find("MAXAWAY")->second != ConvToStr(MAXAWAY)))))
+ reason = "Maximum awaymessage lengths differ or remote awaymessage length not specified";
+ if (reason.length())
+ {
+ this->WriteLine("ERROR :CAPAB negotiation failed: "+reason);
+ return false;
+ }
+ }
+ else if ((params[0] == "MODULES") && (params.size() == 2))
+ {
+ if (!this->ModuleList.length())
+ {
+ this->ModuleList.append(params[1]);
+ }
+ else
+ {
+ this->ModuleList.append(",");
+ this->ModuleList.append(params[1]);
+ }
+ }
+
+ else if ((params[0] == "CAPABILITIES") && (params.size() == 2))
+ {
+ irc::tokenstream capabs(params[1]);
+ std::string item = "*";
+ while ((item = capabs.GetToken()) != "")
+ {
+ /* Process each key/value pair */
+ std::string::size_type equals = item.rfind('=');
+ if (equals != std::string::npos)
+ {
+ std::string var = item.substr(0, equals);
+ std::string value = item.substr(equals+1, item.length());
+ CapKeys[var] = value;
+ }
+ }
+ }
+ return true;
+}
+
+/** This function forces this server to quit, removing this server
+ * and any users on it (and servers and users below that, etc etc).
+ * It's very slow and pretty clunky, but luckily unless your network
+ * is having a REAL bad hair day, this function shouldnt be called
+ * too many times a month ;-)
+ */
+void TreeSocket::SquitServer(std::string &from, TreeServer* Current)
+{
+ /* recursively squit the servers attached to 'Current'.
+ * We're going backwards so we don't remove users
+ * while we still need them ;)
+ */
+ for (unsigned int q = 0; q < Current->ChildCount(); q++)
+ {
+ TreeServer* recursive_server = Current->GetChild(q);
+ this->SquitServer(from,recursive_server);
+ }
+ /* Now we've whacked the kids, whack self */
+ num_lost_servers++;
+ num_lost_users += Current->QuitUsers(from);
+}
+
+/** This is a wrapper function for SquitServer above, which
+ * does some validation first and passes on the SQUIT to all
+ * other remaining servers.
+ */
+void TreeSocket::Squit(TreeServer* Current, const std::string &reason)
+{
+ if ((Current) && (Current != Utils->TreeRoot))
+ {
+ Event rmode((char*)Current->GetName().c_str(), (Module*)Utils->Creator, "lost_server");
+ rmode.Send(Instance);
+
+ std::deque<std::string> params;
+ params.push_back(Current->GetName());
+ params.push_back(":"+reason);
+ Utils->DoOneToAllButSender(Current->GetParent()->GetName(),"SQUIT",params,Current->GetName());
+ if (Current->GetParent() == Utils->TreeRoot)
+ {
+ this->Instance->WriteOpers("Server \002"+Current->GetName()+"\002 split: "+reason);
+ }
+ else
+ {
+ this->Instance->WriteOpers("Server \002"+Current->GetName()+"\002 split from server \002"+Current->GetParent()->GetName()+"\002 with reason: "+reason);
+ }
+ num_lost_servers = 0;
+ num_lost_users = 0;
+ std::string from = Current->GetParent()->GetName()+" "+Current->GetName();
+ SquitServer(from, Current);
+ Current->Tidy();
+ Current->GetParent()->DelChild(Current);
+ DELETE(Current);
+ this->Instance->WriteOpers("Netsplit complete, lost \002%d\002 users on \002%d\002 servers.", num_lost_users, num_lost_servers);
+ }
+ else
+ {
+ Instance->Log(DEFAULT,"Squit from unknown server");
+ }
+}
+
+/** FMODE command - server mode with timestamp checks */
+bool TreeSocket::ForceMode(const std::string &source, std::deque<std::string> &params)
+{
+ /* Chances are this is a 1.0 FMODE without TS */
+ if (params.size() < 3)
+ {
+ /* No modes were in the command, probably a channel with no modes set on it */
+ return true;
+ }
+
+ bool smode = false;
+ std::string sourceserv;
+ /* Are we dealing with an FMODE from a user, or from a server? */
+ userrec* who = this->Instance->FindNick(source);
+ if (who)
+ {
+ /* FMODE from a user, set sourceserv to the users server name */
+ sourceserv = who->server;
+ }
+ else
+ {
+ /* FMODE from a server, create a fake user to receive mode feedback */
+ who = new userrec(this->Instance);
+ who->SetFd(FD_MAGIC_NUMBER);
+ smode = true; /* Setting this flag tells us we should free the userrec later */
+ sourceserv = source; /* Set sourceserv to the actual source string */
+ }
+ const char* modelist[64];
+ time_t TS = 0;
+ int n = 0;
+ memset(&modelist,0,sizeof(modelist));
+ for (unsigned int q = 0; (q < params.size()) && (q < 64); q++)
+ {
+ if (q == 1)
+ {
+ /* The timestamp is in this position.
+ * We don't want to pass that up to the
+ * server->client protocol!
+ */
+ TS = atoi(params[q].c_str());
+ }
+ else
+ {
+ /* Everything else is fine to append to the modelist */
+ modelist[n++] = params[q].c_str();
+ }
+
+ }
+ /* Extract the TS value of the object, either userrec or chanrec */
+ userrec* dst = this->Instance->FindNick(params[0]);
+ chanrec* chan = NULL;
+ time_t ourTS = 0;
+ if (dst)
+ {
+ ourTS = dst->age;
+ }
+ else
+ {
+ chan = this->Instance->FindChan(params[0]);
+ if (chan)
+ {
+ ourTS = chan->age;
+ }
+ else
+ /* Oops, channel doesnt exist! */
+ return true;
+ }
+
+ /* TS is equal: Merge the mode changes, use voooodoooooo on modes
+ * with parameters.
+ */
+ if (TS == ourTS)
+ {
+ ModeHandler* mh = NULL;
+ unsigned long paramptr = 3;
+ std::string to_bounce = "";
+ std::string to_keep = "";
+ std::vector<std::string> params_to_keep;
+ std::string params_to_bounce = "";
+ bool adding = true;
+ char cur_change = 1;
+ char old_change = 0;
+ char old_bounce_change = 0;
+ /* Merge modes, basically do special stuff to mode with params */
+ for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
+ {
+ switch (*x)
+ {
+ case '-':
+ adding = false;
+ break;
+ case '+':
+ adding = true;
+ break;
+ default:
+ if (adding)
+ {
+ /* We only care about whats being set,
+ * not whats being unset
+ */
+ mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
+ if ((mh) && (mh->GetNumParams(adding) > 0) && (!mh->IsListMode()))
+ {
+ /* We only want to do special things to
+ * modes with parameters, we are going to rewrite
+ * those parameters
+ */
+ ModePair ret;
+ adding ? cur_change = '+' : cur_change = '-';
+ ret = mh->ModeSet(smode ? NULL : who, dst, chan, params[paramptr]);
+ /* The mode is set here, check which we should keep */
+ if (ret.first)
+ {
+ bool which_to_keep = mh->CheckTimeStamp(TS, ourTS, params[paramptr], ret.second, chan);
+ if (which_to_keep == true)
+ {
+ /* Keep ours, bounce theirs:
+ * Send back ours to them and
+ * drop their mode changs
+ */
+ adding ? cur_change = '+' : cur_change = '-';
+ if (cur_change != old_bounce_change)
+ to_bounce += cur_change;
+ to_bounce += *x;
+ old_bounce_change = cur_change;
+ if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
+ params_to_bounce.append(" ").append(ret.second);
+ }
+ else
+ {
+ /* Keep theirs: Accept their mode change,
+ * do nothing else
+ */
+ adding ? cur_change = '+' : cur_change = '-';
+ if (cur_change != old_change)
+ to_keep += cur_change;
+ to_keep += *x;
+ old_change = cur_change;
+ if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
+ params_to_keep.push_back(params[paramptr]);
+ }
+ }
+ else
+ {
+ /* Mode isnt set here, we want it */
+ adding ? cur_change = '+' : cur_change = '-';
+ if (cur_change != old_change)
+ to_keep += cur_change;
+ to_keep += *x;
+ old_change = cur_change;
+ if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
+ params_to_keep.push_back(params[paramptr]);
+ }
+ paramptr++;
+ }
+ else
+ {
+ mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
+ if (mh)
+ {
+ adding ? cur_change = '+' : cur_change = '-';
+
+ /* Just keep this, safe to merge with no checks
+ * it has no parameters
+ */
+
+ if (cur_change != old_change)
+ to_keep += cur_change;
+ to_keep += *x;
+ old_change = cur_change;
+
+ if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
+ {
+ params_to_keep.push_back(params[paramptr++]);
+ }
+ }
+ }
+ }
+ else
+ {
+ mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
+ if (mh)
+ {
+ /* Taking a mode away */
+ adding ? cur_change = '+' : cur_change = '-';
+ if (cur_change != old_change)
+ to_keep += cur_change;
+ to_keep += *x;
+ old_change = cur_change;
+ if ((mh->GetNumParams(adding) > 0) && (paramptr < params.size()))
+ params_to_keep.push_back(params[paramptr++]);
+ }
+ }
+ break;
+ }
+ }
+ if (to_bounce.length())
+ {
+ std::deque<std::string> newparams;
+ newparams.push_back(params[0]);
+ newparams.push_back(ConvToStr(ourTS));
+ newparams.push_back(to_bounce+params_to_bounce);
+ Utils->DoOneToOne(this->Instance->Config->ServerName,"FMODE",newparams,sourceserv);
+ }
+ if (to_keep.length())
+ {
+ unsigned int n = 2;
+ unsigned int q = 0;
+ modelist[0] = params[0].c_str();
+ modelist[1] = to_keep.c_str();
+ if (params_to_keep.size() > 0)
+ {
+ for (q = 0; (q < params_to_keep.size()) && (q < 64); q++)
+ {
+ modelist[n++] = params_to_keep[q].c_str();
+ }
+ }
+ if (smode)
+ {
+ this->Instance->SendMode(modelist, n, who);
+ }
+ else
+ {
+ this->Instance->CallCommandHandler("MODE", modelist, n, who);
+ }
+ /* HOT POTATO! PASS IT ON! */
+ Utils->DoOneToAllButSender(source,"FMODE",params,sourceserv);
+ }
+ }
+ else
+ /* U-lined servers always win regardless of their TS */
+ if ((TS > ourTS) && (!this->Instance->ULine(source.c_str())))
+ {
+ /* Bounce the mode back to its sender.* We use our lower TS, so the other end
+ * SHOULD accept it, if its clock is right.
+ *
+ * NOTE: We should check that we arent bouncing anything thats already set at this end.
+ * If we are, bounce +ourmode to 'reinforce' it. This prevents desyncs.
+ * e.g. They send +l 50, we have +l 10 set. rather than bounce -l 50, we bounce +l 10.
+ *
+ * Thanks to jilles for pointing out this one-hell-of-an-issue before i even finished
+ * writing the code. It took me a while to come up with this solution.
+ *
+ * XXX: BE SURE YOU UNDERSTAND THIS CODE FULLY BEFORE YOU MESS WITH IT.
+ */
+ std::deque<std::string> newparams; /* New parameter list we send back */
+ newparams.push_back(params[0]); /* Target, user or channel */
+ newparams.push_back(ConvToStr(ourTS)); /* Timestamp value of the target */
+ newparams.push_back(""); /* This contains the mode string. For now
+ * it's empty, we fill it below.
+ */
+ /* Intelligent mode bouncing. Don't just invert, reinforce any modes which are already
+ * set to avoid a desync here.
+ */
+ std::string modebounce = "";
+ bool adding = true;
+ unsigned int t = 3;
+ ModeHandler* mh = NULL;
+ char cur_change = 1;
+ char old_change = 0;
+ for (std::string::iterator x = params[2].begin(); x != params[2].end(); x++)
+ {
+ /* Iterate over all mode chars in the sent set */
+ switch (*x)
+ {
+ /* Adding or subtracting modes? */
+ case '-':
+ adding = false;
+ break;
+ case '+':
+ adding = true;
+ break;
+ default:
+ /* Find the mode handler for this mode */
+ mh = this->Instance->Modes->FindMode(*x, chan ? MODETYPE_CHANNEL : MODETYPE_USER);
+ /* Got a mode handler?
+ * This also prevents us bouncing modes we have no handler for.
+ */
+ if (mh)
+ {
+ ModePair ret;
+ std::string p = "";
+ /* Does the mode require a parameter right now?
+ * If it does, fetch it if we can
+ */
+ if ((mh->GetNumParams(adding) > 0) && (t < params.size()))
+ p = params[t++];
+ /* Call the ModeSet method to determine if its set with the
+ * given parameter here or not.
+ */
+ ret = mh->ModeSet(smode ? NULL : who, dst, chan, p);
+ /* XXX: Really. Dont ask.
+ * Determine from if its set combined with what the current
+ * 'state' is (adding or not) as to wether we should 'invert'
+ * or 'reinforce' the mode change
+ */
+ (!ret.first ? (adding ? cur_change = '-' : cur_change = '+') : (!adding ? cur_change = '-' : cur_change = '+'));
+ /* Quickly determine if we have 'flipped' from + to -,
+ * or - to +, to prevent unneccessary +/- chars in the
+ * output string that waste bandwidth
+ */
+ if (cur_change != old_change)
+ modebounce += cur_change;
+ old_change = cur_change;
+ /* Add the mode character to the output string */
+ modebounce += mh->GetModeChar();
+ /* We got a parameter back from ModeHandler::ModeSet,
+ * are we supposed to be sending one out right now?
+ */
+ if (ret.second.length())
+ {
+ if (mh->GetNumParams(cur_change == '+') > 0)
+ /* Yes we're supposed to be sending out
+ * the parameter. Make sure it goes
+ */
+ newparams.push_back(ret.second);
+ }
+ }
+ break;
+ }
+ }
+
+ /* Update the parameters for FMODE with the new 'bounced' string */
+ newparams[2] = modebounce;
+ /* Only send it back the way it came, no need to send it anywhere else */
+ Utils->DoOneToOne(this->Instance->Config->ServerName,"FMODE",newparams,sourceserv);
+ }
+ else
+ {
+ /* The server was ulined, but something iffy is up with the TS.
+ * Sound the alarm bells!
+ */
+ if ((this->Instance->ULine(sourceserv.c_str())) && (TS > ourTS))
+ {
+ this->Instance->WriteOpers("\2WARNING!\2 U-Lined server '%s' has bad TS for '%s' (accepted change): \2SYNC YOUR CLOCKS\2 to avoid this notice",sourceserv.c_str(),params[0].c_str());
+ }
+ /* Allow the mode, route it to either server or user command handling */
+ if (smode)
+ this->Instance->SendMode(modelist,n,who);
+ else
+ this->Instance->CallCommandHandler("MODE", modelist, n, who);
+ /* HOT POTATO! PASS IT ON! */
+ Utils->DoOneToAllButSender(source,"FMODE",params,sourceserv);
+ }
+ /* Are we supposed to free the userrec? */
+ if (smode)
+ DELETE(who);
+
+ return true;
+}
+
+/** FTOPIC command */
+bool TreeSocket::ForceTopic(const std::string &source, std::deque<std::string> &params)
+{
+ if (params.size() != 4)
+ return true;
+ time_t ts = atoi(params[1].c_str());
+ std::string nsource = source;
+ chanrec* c = this->Instance->FindChan(params[0]);
+ if (c)
+ {
+ if ((ts >= c->topicset) || (!*c->topic))
+ {
+ std::string oldtopic = c->topic;
+ strlcpy(c->topic,params[3].c_str(),MAXTOPIC);
+ strlcpy(c->setby,params[2].c_str(),NICKMAX-1);
+ c->topicset = ts;
+ /* if the topic text is the same as the current topic,
+ * dont bother to send the TOPIC command out, just silently
+ * update the set time and set nick.
+ */
+ if (oldtopic != params[3])
+ {
+ userrec* user = this->Instance->FindNick(source);
+ if (!user)
+ {
+ c->WriteChannelWithServ(source.c_str(), "TOPIC %s :%s", c->name, c->topic);
+ }
+ else
+ {
+ c->WriteChannel(user, "TOPIC %s :%s", c->name, c->topic);
+ nsource = user->server;
+ }
+ /* all done, send it on its way */
+ params[3] = ":" + params[3];
+ Utils->DoOneToAllButSender(source,"FTOPIC",params,nsource);
+ }
+ }
+
+ }
+ return true;
+}
+
+/** FJOIN, similar to TS6 SJOIN, but not quite. */
+bool TreeSocket::ForceJoin(const std::string &source, std::deque<std::string> &params)
+{
+ /* 1.1 FJOIN works as follows:
+ *
+ * Each FJOIN is sent along with a timestamp, and the side with the lowest
+ * timestamp 'wins'. From this point on we will refer to this side as the
+ * winner. The side with the higher timestamp loses, from this point on we
+ * will call this side the loser or losing side. This should be familiar to
+ * anyone who's dealt with dreamforge or TS6 before.
+ *
+ * When two sides of a split heal and this occurs, the following things
+ * will happen:
+ *
+ * If the timestamps are exactly equal, both sides merge their privilages
+ * and users, as in InspIRCd 1.0 and ircd2.8. The channels have not been
+ * re-created during a split, this is safe to do.
+ *
+ *
+ * If the timestamps are NOT equal, the losing side removes all privilage
+ * modes from all of its users that currently exist in the channel, before
+ * introducing new users into the channel which are listed in the FJOIN
+ * command's parameters. This means, all modes +ohv, and privilages added
+ * by modules, such as +qa. The losing side then LOWERS its timestamp value
+ * of the channel to match that of the winning side, and the modes of the
+ * users of the winning side are merged in with the losing side. The loser
+ * then sends out a set of FMODE commands which 'confirm' that it just
+ * removed all privilage modes from its existing users, which allows for
+ * services packages to still work correctly without needing to know the
+ * timestamping rules which InspIRCd follows. In TS6 servers this is always
+ * a problem, and services packages must contain code which explicitly
+ * behaves as TS6 does, removing ops from the losing side of a split where
+ * neccessary within its internal records, as this state information is
+ * not explicitly echoed out in that protocol.
+ *
+ * The winning side on the other hand will ignore all user modes from the
+ * losing side, so only its own modes get applied. Life is simple for those
+ * who succeed at internets. :-)
+ *
+ * NOTE: Unlike TS6 and dreamforge and other protocols which have SJOIN,
+ * FJOIN does not contain the simple-modes such as +iklmnsp. Why not,
+ * you ask? Well, quite simply because we don't need to. They'll be sent
+ * after the FJOIN by FMODE, and FMODE is timestamped, so in the event
+ * the losing side sends any modes for the channel which shouldnt win,
+ * they wont as their timestamp will be too high :-)
+ */
+
+ if (params.size() < 3)
+ return true;
+
+ char first[MAXBUF]; /* The first parameter of the mode command */
+ char modestring[MAXBUF]; /* The mode sequence (2nd parameter) of the mode command */
+ char* mode_users[127]; /* The values used by the mode command */
+ memset(&mode_users,0,sizeof(mode_users)); /* Initialize mode parameters */
+ mode_users[0] = first; /* Set this up to be our on-stack value */
+ mode_users[1] = modestring; /* Same here as above */
+ strcpy(modestring,"+"); /* Initialize the mode sequence to just '+' */
+ unsigned int modectr = 2; /* Pointer to the third mode parameter (e.g. the one after the +-sequence) */
+
+ userrec* who = NULL; /* User we are currently checking */
+ std::string channel = params[0]; /* Channel name, as a string */
+ time_t TS = atoi(params[1].c_str()); /* Timestamp given to us for remote side */
+ bool created = false;
+
+ /* Try and find the channel */
+ chanrec* chan = this->Instance->FindChan(channel);
+
+ /* Initialize channel name in the mode parameters */
+ strlcpy(mode_users[0],channel.c_str(),MAXBUF);
+
+ /* default TS is a high value, which if we dont have this
+ * channel will let the other side apply their modes.
+ */
+ time_t ourTS = Instance->Time(true)+600;
+ /* Does this channel exist? if it does, get its REAL timestamp */
+ if (chan)
+ ourTS = chan->age;
+ else
+ created = true; /* don't perform deops, and set TS to correct time after processing. */
+ /* In 1.1, if they have the newer channel, we immediately clear
+ * all status modes from our users. We then accept their modes.
+ * If WE have the newer channel its the other side's job to do this.
+ * Note that this causes the losing server to send out confirming
+ * FMODE lines.
+ */
+ if (ourTS > TS)
+ {
+ std::deque<std::string> param_list;
+ /* Lower the TS here */
+ if (Utils->AnnounceTSChange && chan)
+ chan->WriteChannelWithServ(Instance->Config->ServerName,
+ "NOTICE %s :TS for %s changed from %lu to %lu", chan->name, chan->name, ourTS, TS);
+ ourTS = TS;
+ /* Zap all the privilage modes on our side, if the channel exists here */
+ if (!created)
+ {
+ param_list.push_back(channel);
+ /* Do this first! */
+ chan->age = TS;
+ this->RemoveStatus(Instance->Config->ServerName, param_list);
+ }
+ }
+ /* Put the final parameter of the FJOIN into a tokenstream ready to split it */
+ irc::tokenstream users(params[2]);
+ std::string item = "*";
+ /* do this first, so our mode reversals are correctly received by other servers
+ * if there is a TS collision.
+ */
+ params[2] = ":" + params[2];
+ Utils->DoOneToAllButSender(source,"FJOIN",params,source);
+ /* Now, process every 'prefixes,nick' pair */
+ while (item != "")
+ {
+ /* Find next user */
+ item = users.GetToken();
+ const char* usr = item.c_str();
+ /* Safety check just to make sure someones not sent us an FJOIN full of spaces
+ * (is this even possible?) */
+ if (usr && *usr)
+ {
+ const char* permissions = usr;
+ int ntimes = 0;
+ char* nm = new char[MAXBUF];
+ char* tnm = nm;
+ /* Iterate through all the prefix values, convert them from prefixes
+ * to mode letters, and append them to the mode sequence
+ */
+ while ((*permissions) && (*permissions != ',') && (ntimes < MAXBUF))
+ {
+ ModeHandler* mh = Instance->Modes->FindPrefix(*permissions);
+ if (mh)
+ {
+ /* This is a valid prefix */
+ ntimes++;
+ *tnm++ = mh->GetModeChar();
+ }
+ else
+ {
+ /* Not a valid prefix...
+ * danger bill bobbertson! (that's will robinsons older brother ;-) ...)
+ */
+ this->Instance->WriteOpers("ERROR: We received a user with an unknown prefix '%c'. Closed connection to avoid a desync.",*permissions);
+ this->WriteLine(std::string("ERROR :Invalid prefix '")+(*permissions)+"' in FJOIN");
+ return false;
+ }
+ usr++;
+ permissions++;
+ }
+ /* Null terminate modes */
+ *tnm = 0;
+ /* Advance past the comma, to the nick */
+ usr++;
+ /* Check the user actually exists */
+ who = this->Instance->FindNick(usr);
+ if (who)
+ {
+ /* Did they get any modes? How many times? */
+ strlcat(modestring, nm, MAXBUF);
+ for (int k = 0; k < ntimes; k++)
+ mode_users[modectr++] = strdup(usr);
+ /* Free temporary buffer used for mode sequence */
+ delete[] nm;
+ /* Check that the user's 'direction' is correct
+ * based on the server sending the FJOIN. We must
+ * check each nickname in turn, because the origin of
+ * the FJOIN may be different to the origin of the nicks
+ * in the command itself.
+ */
+ TreeServer* route_back_again = Utils->BestRouteTo(who->server);
+ if ((!route_back_again) || (route_back_again->GetSocket() != this))
+ {
+ /* Oh dear oh dear. */
+ continue;
+ }
+ /* Finally, we can actually place the user into the channel.
+ * We're sure its right. Final answer, phone a friend.
+ */
+ chanrec::JoinUser(this->Instance, who, channel.c_str(), true, "");
+ /* Have we already queued up MAXMODES modes with parameters
+ * (+qaohv) ready to be sent to the server?
+ */
+ if (modectr >= (MAXMODES-1))
+ {
+ /* Only actually give the users any status if we lost
+ * the FJOIN or drew (equal timestamps).
+ * It isn't actually possible for ourTS to be > TS here,
+ * only possible to actually have ourTS == TS, or
+ * ourTS < TS, because if we lost, we already lowered
+ * our TS above before we entered this loop. We only
+ * check >= as a safety measure, in case someone stuffed
+ * up. If someone DID stuff up, it was most likely me.
+ * Note: I do not like baseball bats in the face...
+ */
+ if (ourTS >= TS)
+ {
+ this->Instance->SendMode((const char**)mode_users,modectr,who);
+
+ /* Something stuffed up, and for some reason, the timestamp is
+ * NOT lowered right now and should be. Lower it. Usually this
+ * code won't be executed, doubtless someone will remove it some
+ * day soon.
+ */
+ if (ourTS > TS)
+ {
+ Instance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",chan->name,ourTS,TS);
+ chan->age = TS;
+ ourTS = TS;
+ }
+ }
+
+ /* Reset all this back to defaults, and
+ * free any ram we have left allocated.
+ */
+ strcpy(mode_users[1],"+");
+ for (unsigned int f = 2; f < modectr; f++)
+ free(mode_users[f]);
+ modectr = 2;
+ }
+ }
+ else
+ {
+ /* Remember to free this */
+ delete[] nm;
+ /* If we got here, there's a nick in FJOIN which doesnt exist on this server.
+ * We don't try to process the nickname here (that WOULD cause a segfault because
+ * we'd be playing with null pointers) however, we DO pass the nickname on, just
+ * in case somehow we're desynched, so that other users which might be able to see
+ * the nickname get their fair chance to process it.
+ */
+ Instance->Log(SPARSE,"Warning! Invalid user in FJOIN to channel %s IGNORED", channel.c_str());
+ continue;
+ }
+ }
+ }
+
+ /* there werent enough modes built up to flush it during FJOIN,
+ * or, there are a number left over. flush them out.
+ */
+ if ((modectr > 2) && (who) && (chan))
+ {
+ if (ourTS >= TS)
+ {
+ /* Our channel is newer than theirs. Evil deeds must be afoot. */
+ this->Instance->SendMode((const char**)mode_users,modectr,who);
+ /* Yet again, we can't actually get a true value here, if everything else
+ * is working as it should.
+ */
+ if (ourTS > TS)
+ {
+ Instance->Log(DEFAULT,"Channel TS for %s changed from %lu to %lu",chan->name,ourTS,TS);
+ chan->age = TS;
+ ourTS = TS;
+ }
+ }
+
+ /* Free anything we have left to free */
+ for (unsigned int f = 2; f < modectr; f++)
+ free(mode_users[f]);
+ }
+ /* if we newly created the channel, set it's TS properly. */
+ if (created)
+ {
+ /* find created channel .. */
+ chan = this->Instance->FindChan(channel);
+ if (chan)
+ /* w00t said this shouldnt be needed but it is.
+ * This isnt strictly true, as chan can be NULL
+ * if a nick collision has occured and therefore
+ * the channel was never created.
+ */
+ chan->age = TS;
+ }
+ /* All done. That wasnt so bad was it, you can wipe
+ * the sweat from your forehead now. :-)
+ */
+ return true;
+}
+
+/** NICK command */
+bool TreeSocket::IntroduceClient(const std::string &source, std::deque<std::string> &params)
+{
+ if (params.size() < 8)
+ return true;
+ if (params.size() > 8)
+ {
+ this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+params[1]+" :Invalid client introduction ("+params[1]+"?)");
+ return true;
+ }
+ // NICK age nick host dhost ident +modes ip :gecos
+ // 0 1 2 3 4 5 6 7
+ time_t age = atoi(params[0].c_str());
+
+ const char* tempnick = params[1].c_str();
+ Instance->Log(DEBUG,"New remote client %s",tempnick);
+
+ user_hash::iterator iter = this->Instance->clientlist->find(tempnick);
+
+ if (iter != this->Instance->clientlist->end())
+ {
+ // nick collision
+ this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" KILL "+tempnick+" :Nickname collision");
+ userrec::QuitUser(this->Instance, iter->second, "Nickname collision");
+ return true;
+ }
+
+ userrec* _new = new userrec(this->Instance);
+ (*(this->Instance->clientlist))[tempnick] = _new;
+ _new->SetFd(FD_MAGIC_NUMBER);
+ strlcpy(_new->nick, tempnick,NICKMAX-1);
+ strlcpy(_new->host, params[2].c_str(),63);
+ strlcpy(_new->dhost, params[3].c_str(),63);
+ _new->server = this->Instance->FindServerNamePtr(source.c_str());
+ strlcpy(_new->ident, params[4].c_str(),IDENTMAX);
+ strlcpy(_new->fullname, params[7].c_str(),MAXGECOS);
+ _new->registered = REG_ALL;
+ _new->signon = age;
+
+ /*
+ * we need to remove the + from the modestring, so we can do our stuff
+ */
+ std::string::size_type pos_after_plus = params[5].find_first_not_of('+');
+ if (pos_after_plus != std::string::npos)
+ params[5] = params[5].substr(pos_after_plus);
+
+ for (std::string::iterator v = params[5].begin(); v != params[5].end(); v++)
+ {
+ _new->modes[(*v)-65] = 1;
+ /* For each mode thats set, increase counter */
+ ModeHandler* mh = Instance->Modes->FindMode(*v, MODETYPE_USER);
+ if (mh)
+ mh->ChangeCount(1);
+ }
+
+ /* now we've done with modes processing, put the + back for remote servers */
+ params[5] = "+" + params[5];
+
+#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);
+
+ Instance->AddGlobalClone(_new);
+ this->Instance->SNO->WriteToSnoMask('C',"Client connecting at %s: %s!%s@%s [%s]",_new->server,_new->nick,_new->ident,_new->host, _new->GetIPString());
+
+ params[7] = ":" + params[7];
+ Utils->DoOneToAllButSender(source,"NICK", params, source);
+
+ // Increment the Source Servers User Count..
+ TreeServer* SourceServer = Utils->FindServer(source);
+ if (SourceServer)
+ {
+ SourceServer->AddUserCount();
+ }
+
+ FOREACH_MOD_I(Instance,I_OnPostConnect,OnPostConnect(_new));
+
+ return true;
+}
+
+/** 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.
+ */
+void TreeSocket::SendFJoins(TreeServer* Current, chanrec* c)
+{
+ std::string buffer;
+ char list[MAXBUF];
+ std::string individual_halfops = std::string(":")+this->Instance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age);
+
+ size_t dlen, curlen;
+ dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
+ int numusers = 0;
+ char* ptr = list + dlen;
+
+ CUList *ulist = c->GetUsers();
+ std::string modes = "";
+ std::string params = "";
+
+ for (CUList::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 ? ":" : "", c->GetAllPrefixChars(i->second), i->second->nick);
+
+ curlen += ptrlen;
+ ptr += ptrlen;
+
+ numusers++;
+
+ if (curlen > (480-NICKMAX))
+ {
+ buffer.append(list).append("\r\n");
+ dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->ServerName,c->name,(unsigned long)c->age);
+ ptr = list + dlen;
+ ptrlen = 0;
+ numusers = 0;
+ }
+ }
+
+ if (numusers)
+ buffer.append(list).append("\r\n");
+
+ /* Sorry for the hax. Because newly created channels assume +nt,
+ * if this channel doesnt have +nt, explicitly send -n and -t for the missing modes.
+ */
+ bool inverted = false;
+ if (!c->IsModeSet('n'))
+ {
+ modes.append("-n");
+ inverted = true;
+ }
+ if (!c->IsModeSet('t'))
+ {
+ modes.append("-t");
+ inverted = true;
+ }
+ if (inverted)
+ {
+ modes.append("+");
+ }
+
+ for (BanList::iterator b = c->bans.begin(); b != c->bans.end(); b++)
+ {
+ modes.append("b");
+ params.append(" ").append(b->data);
+ if (params.length() >= MAXMODES)
+ {
+ /* Wrap at MAXMODES */
+ buffer.append(":").append(this->Instance->Config->ServerName).append(" FMODE ").append(c->name).append(" ").append(ConvToStr(c->age)).append(" +").append(modes).append(params).append("\r\n");
+ modes = "";
+ params = "";
+ }
+ }
+ buffer.append(":").append(this->Instance->Config->ServerName).append(" FMODE ").append(c->name).append(" ").append(ConvToStr(c->age)).append(" +").append(c->ChanModes(true));
+
+ /* Only send these if there are any */
+ if (!modes.empty())
+ buffer.append("\r\n").append(":").append(this->Instance->Config->ServerName).append(" FMODE ").append(c->name).append(" ").append(ConvToStr(c->age)).append(" +").append(modes).append(params);
+
+ this->WriteLine(buffer);
+}
+
+/** Send G, Q, Z and E lines */
+void TreeSocket::SendXLines(TreeServer* Current)
+{
+ char data[MAXBUF];
+ std::string buffer;
+ std::string n = this->Instance->Config->ServerName;
+ const char* sn = n.c_str();
+ /* Yes, these arent too nice looking, but they get the job done */
+ for (std::vector<ZLine*>::iterator i = Instance->XLines->zlines.begin(); i != Instance->XLines->zlines.end(); i++)
+ {
+ snprintf(data,MAXBUF,":%s ADDLINE Z %s %s %lu %lu :%s\r\n",sn,(*i)->ipaddr,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
+ buffer.append(data);
+ }
+ for (std::vector<QLine*>::iterator i = Instance->XLines->qlines.begin(); i != Instance->XLines->qlines.end(); i++)
+ {
+ snprintf(data,MAXBUF,":%s ADDLINE Q %s %s %lu %lu :%s\r\n",sn,(*i)->nick,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
+ buffer.append(data);
+ }
+ for (std::vector<GLine*>::iterator i = Instance->XLines->glines.begin(); i != Instance->XLines->glines.end(); i++)
+ {
+ snprintf(data,MAXBUF,":%s ADDLINE G %s@%s %s %lu %lu :%s\r\n",sn,(*i)->identmask,(*i)->hostmask,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
+ buffer.append(data);
+ }
+ for (std::vector<ELine*>::iterator i = Instance->XLines->elines.begin(); i != Instance->XLines->elines.end(); i++)
+ {
+ snprintf(data,MAXBUF,":%s ADDLINE E %s@%s %s %lu %lu :%s\r\n",sn,(*i)->identmask,(*i)->hostmask,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
+ buffer.append(data);
+ }
+ for (std::vector<ZLine*>::iterator i = Instance->XLines->pzlines.begin(); i != Instance->XLines->pzlines.end(); i++)
+ {
+ snprintf(data,MAXBUF,":%s ADDLINE Z %s %s %lu %lu :%s\r\n",sn,(*i)->ipaddr,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
+ buffer.append(data);
+ }
+ for (std::vector<QLine*>::iterator i = Instance->XLines->pqlines.begin(); i != Instance->XLines->pqlines.end(); i++)
+ {
+ snprintf(data,MAXBUF,":%s ADDLINE Q %s %s %lu %lu :%s\r\n",sn,(*i)->nick,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
+ buffer.append(data);
+ }
+ for (std::vector<GLine*>::iterator i = Instance->XLines->pglines.begin(); i != Instance->XLines->pglines.end(); i++)
+ {
+ snprintf(data,MAXBUF,":%s ADDLINE G %s@%s %s %lu %lu :%s\r\n",sn,(*i)->identmask,(*i)->hostmask,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
+ buffer.append(data);
+ }
+ for (std::vector<ELine*>::iterator i = Instance->XLines->pelines.begin(); i != Instance->XLines->pelines.end(); i++)
+ {
+ snprintf(data,MAXBUF,":%s ADDLINE E %s@%s %s %lu %lu :%s\r\n",sn,(*i)->identmask,(*i)->hostmask,(*i)->source,(unsigned long)(*i)->set_time,(unsigned long)(*i)->duration,(*i)->reason);
+ buffer.append(data);
+ }
+
+ if (!buffer.empty())
+ this->WriteLine(buffer);
+}
+
+/** Send channel modes and topics */
+void TreeSocket::SendChannelModes(TreeServer* Current)
+{
+ char data[MAXBUF];
+ std::deque<std::string> list;
+ std::string n = this->Instance->Config->ServerName;
+ const char* sn = n.c_str();
+ for (chan_hash::iterator c = this->Instance->chanlist->begin(); c != this->Instance->chanlist->end(); c++)
+ {
+ 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++)
+ {
+ FOREACH_MOD_I(this->Instance,I_OnSyncChannelMetaData,OnSyncChannelMetaData(c->second,(Module*)Utils->Creator,(void*)this,list[j]));
+ }
+ }
+}
+
+/** send all users and their oper state/modes */
+void TreeSocket::SendUsers(TreeServer* Current)
+{
+ char data[MAXBUF];
+ std::deque<std::string> list;
+ std::string dataline;
+ for (user_hash::iterator u = this->Instance->clientlist->begin(); u != this->Instance->clientlist->end(); u++)
+ {
+ if (u->second->registered == REG_ALL)
+ {
+ snprintf(data,MAXBUF,":%s NICK %lu %s %s %s %s +%s %s :%s",u->second->server,(unsigned long)u->second->age,u->second->nick,u->second->host,u->second->dhost,u->second->ident,u->second->FormatModes(),u->second->GetIPString(),u->second->fullname);
+ this->WriteLine(data);
+ if (*u->second->oper)
+ {
+ snprintf(data,MAXBUF,":%s OPERTYPE %s", u->second->nick, u->second->oper);
+ this->WriteLine(data);
+ }
+ if (*u->second->awaymsg)
+ {
+ snprintf(data,MAXBUF,":%s AWAY :%s", u->second->nick, u->second->awaymsg);
+ this->WriteLine(data);
+ }
+ 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]));
+ }
+ }
+ }
+}
+
+/** 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
+ * users require their servers to exist, and channels require their
+ * users to exist. You get the idea.
+ */
+void TreeSocket::DoBurst(TreeServer* s)
+{
+ std::string burst = "BURST "+ConvToStr(Instance->Time(true));
+ std::string endburst = "ENDBURST";
+ // Because by the end of the netburst, it could be gone!
+ std::string name = s->GetName();
+ this->Instance->SNO->WriteToSnoMask('l',"Bursting to \2"+name+"\2.");
+ this->WriteLine(burst);
+ /* send our version string */
+ this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" 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.");
+}
+
+/** This function is called when we receive data from a remote
+ * server. We buffer the data in a std::string (it doesnt stay
+ * there for long), reading using InspSocket::Read() which can
+ * read up to 16 kilobytes in one operation.
+ *
+ * IF THIS FUNCTION RETURNS FALSE, THE CORE CLOSES AND DELETES
+ * THE SOCKET OBJECT FOR US.
+ */
+bool TreeSocket::OnDataReady()
+{
+ char* data = this->Read();
+ /* Check that the data read is a valid pointer and it has some content */
+ if (data && *data)
+ {
+ this->in_buffer.append(data);
+ /* While there is at least one new line in the buffer,
+ * do something useful (we hope!) with it.
+ */
+ while (in_buffer.find("\n") != std::string::npos)
+ {
+ std::string ret = in_buffer.substr(0,in_buffer.find("\n")-1);
+ in_buffer = in_buffer.substr(in_buffer.find("\n")+1,in_buffer.length()-in_buffer.find("\n"));
+ /* Use rfind here not find, as theres more
+ * chance of the \r being near the end of the
+ * string, not the start.
+ */
+ if (ret.find("\r") != std::string::npos)
+ ret = in_buffer.substr(0,in_buffer.find("\r")-1);
+ /* Process this one, abort if it
+ * didnt return true.
+ */
+ if (!this->ProcessLine(ret))
+ {
+ return false;
+ }
+ }
+ return true;
+ }
+ /* EAGAIN returns an empty but non-NULL string, so this
+ * evaluates to TRUE for EAGAIN but to FALSE for EOF.
+ */
+ return (data && !*data);
+}
+
+int TreeSocket::WriteLine(std::string line)
+{
+ Instance->Log(DEBUG, "-> %s", line.c_str());
+ line.append("\r\n");
+ return this->Write(line);
+}
+
+/* Handle ERROR command */
+bool TreeSocket::Error(std::deque<std::string> &params)
+{
+ if (params.size() < 1)
+ return false;
+ this->Instance->SNO->WriteToSnoMask('l',"ERROR from %s: %s",(InboundServerName != "" ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str());
+ /* we will return false to cause the socket to close. */
+ return false;
+}
+
+/** remote MOTD. leet, huh? */
+bool TreeSocket::Motd(const std::string &prefix, std::deque<std::string> &params)
+{
+ if (params.size() > 0)
+ {
+ if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
+ {
+ /* It's for our server */
+ string_list results;
+ userrec* source = this->Instance->FindNick(prefix);
+
+ if (source)
+ {
+ std::deque<std::string> par;
+ par.push_back(prefix);
+ par.push_back("");
+
+ if (!Instance->Config->MOTD.size())
+ {
+ par[1] = std::string("::")+Instance->Config->ServerName+" 422 "+source->nick+" :Message of the day file is missing.";
+ Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
+ return true;
+ }
+
+ par[1] = std::string("::")+Instance->Config->ServerName+" 375 "+source->nick+" :"+Instance->Config->ServerName+" message of the day";
+ Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
+
+ for (unsigned int i = 0; i < Instance->Config->MOTD.size(); i++)
+ {
+ par[1] = std::string("::")+Instance->Config->ServerName+" 372 "+source->nick+" :- "+Instance->Config->MOTD[i];
+ Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
+ }
+
+ par[1] = std::string("::")+Instance->Config->ServerName+" 376 "+source->nick+" End of message of the day.";
+ Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
+ }
+ }
+ else
+ {
+ /* Pass it on */
+ userrec* source = this->Instance->FindNick(prefix);
+ if (source)
+ Utils->DoOneToOne(prefix, "MOTD", params, params[0]);
+ }
+ }
+ return true;
+}
+
+/** remote ADMIN. leet, huh? */
+bool TreeSocket::Admin(const std::string &prefix, std::deque<std::string> &params)
+{
+ if (params.size() > 0)
+ {
+ if (this->Instance->MatchText(this->Instance->Config->ServerName, params[0]))
+ {
+ /* It's for our server */
+ string_list results;
+ userrec* source = this->Instance->FindNick(prefix);
+ if (source)
+ {
+ std::deque<std::string> par;
+ par.push_back(prefix);
+ par.push_back("");
+ par[1] = std::string("::")+Instance->Config->ServerName+" 256 "+source->nick+" :Administrative info for "+Instance->Config->ServerName;
+ Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
+ par[1] = std::string("::")+Instance->Config->ServerName+" 257 "+source->nick+" :Name - "+Instance->Config->AdminName;
+ Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
+ par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :Nickname - "+Instance->Config->AdminNick;
+ Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
+ par[1] = std::string("::")+Instance->Config->ServerName+" 258 "+source->nick+" :E-Mail - "+Instance->Config->AdminEmail;
+ Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
+ }
+ }
+ else
+ {
+ /* Pass it on */
+ userrec* source = this->Instance->FindNick(prefix);
+ if (source)
+ Utils->DoOneToOne(prefix, "ADMIN", params, params[0]);
+ }
+ }
+ return true;
+}
+
+bool TreeSocket::Stats(const std::string &prefix, std::deque<std::string> &params)
+{
+ /* Get the reply to a STATS query if it matches this servername,
+ * and send it back as a load of PUSH queries
+ */
+ if (params.size() > 1)
+ {
+ if (this->Instance->MatchText(this->Instance->Config->ServerName, params[1]))
+ {
+ /* It's for our server */
+ string_list results;
+ userrec* source = this->Instance->FindNick(prefix);
+ if (source)
+ {
+ std::deque<std::string> par;
+ par.push_back(prefix);
+ par.push_back("");
+ DoStats(this->Instance, *(params[0].c_str()), source, results);
+ for (size_t i = 0; i < results.size(); i++)
+ {
+ par[1] = "::" + results[i];
+ Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server);
+ }
+ }
+ }
+ else
+ {
+ /* Pass it on */
+ userrec* source = this->Instance->FindNick(prefix);
+ if (source)
+ Utils->DoOneToOne(prefix, "STATS", params, params[1]);
+ }
+ }
+ return true;
+}
+
+
+/** Because the core won't let users or even SERVERS set +o,
+ * we use the OPERTYPE command to do this.
+ */
+bool TreeSocket::OperType(const std::string &prefix, std::deque<std::string> &params)
+{
+ if (params.size() != 1)
+ return true;
+ std::string opertype = params[0];
+ userrec* u = this->Instance->FindNick(prefix);
+ if (u)
+ {
+ u->modes[UM_OPERATOR] = 1;
+ this->Instance->all_opers.push_back(u);
+ strlcpy(u->oper,opertype.c_str(),NICKMAX-1);
+ Utils->DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server);
+ this->Instance->SNO->WriteToSnoMask('o',"From %s: User %s (%s@%s) is now an IRC operator of type %s",u->server, u->nick,u->ident,u->host,irc::Spacify(opertype.c_str()));
+ }
+ return true;
+}
+
+/** Because Andy insists that services-compatible servers must
+ * implement SVSNICK and SVSJOIN, that's exactly what we do :p
+ */
+bool TreeSocket::ForceNick(const std::string &prefix, std::deque<std::string> &params)
+{
+ if (params.size() < 3)
+ return true;
+
+ userrec* u = this->Instance->FindNick(params[0]);
+
+ if (u)
+ {
+ Utils->DoOneToAllButSender(prefix,"SVSNICK",params,prefix);
+ if (IS_LOCAL(u))
+ {
+ std::deque<std::string> par;
+ par.push_back(params[1]);
+ if (!u->ForceNickChange(params[1].c_str()))
+ {
+ userrec::QuitUser(this->Instance, u, "Nickname collision");
+ return true;
+ }
+ u->age = atoi(params[2].c_str());
+ }
+ }
+ return true;
+}
+
+/*
+ * Remote SQUIT (RSQUIT). Routing works similar to SVSNICK: Route it to the server that the target is connected to locally,
+ * then let that server do the dirty work (squit it!). Example:
+ * A -> B -> C -> D: oper on A squits D, A routes to B, B routes to C, C notices D connected locally, kills it. -- w00t
+ */
+bool TreeSocket::RemoteSquit(const std::string &prefix, std::deque<std::string> &params)
+{
+ /* ok.. :w00t RSQUIT jupe.barafranca.com :reason here */
+ if (params.size() < 2)
+ return true;
+
+ TreeServer* s = Utils->FindServerMask(params[0]);
+
+ if (s)
+ {
+ if (s == Utils->TreeRoot)
+ {
+ this->Instance->SNO->WriteToSnoMask('l',"What the fuck, I recieved a remote SQUIT for myself? :< (from %s", prefix.c_str());
+ return true;
+ }
+
+ TreeSocket* sock = s->GetSocket();
+
+ if (sock)
+ {
+ /* it's locally connected, KILL IT! */
+ Instance->SNO->WriteToSnoMask('l',"RSQUIT: Server \002%s\002 removed from network by %s: %s", params[0].c_str(), prefix.c_str(), params[1].c_str());
+ sock->Squit(s,"Server quit by " + prefix + ": " + params[1]);
+ Instance->SE->DelFd(sock);
+ sock->Close();
+ delete sock;
+ }
+ else
+ {
+ /* route the rsquit */
+ params[1] = ":" + params[1];
+ Utils->DoOneToOne(prefix, "RSQUIT", params, params[0]);
+ }
+ }
+ else
+ {
+ /* mother fucker! it doesn't exist */
+ }
+
+ return true;
+}
+
+bool TreeSocket::ServiceJoin(const std::string &prefix, std::deque<std::string> &params)
+{
+ if (params.size() < 2)
+ return true;
+
+ userrec* u = this->Instance->FindNick(params[0]);
+
+ if (u)
+ {
+ /* only join if it's local, otherwise just pass it on! */
+ if (IS_LOCAL(u))
+ chanrec::JoinUser(this->Instance, u, params[1].c_str(), false);
+ Utils->DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);
+ }
+ return true;
+}
+
+bool TreeSocket::RemoteRehash(const std::string &prefix, std::deque<std::string> &params)
+{
+ if (params.size() < 1)
+ return false;
+
+ std::string servermask = params[0];
+
+ if (this->Instance->MatchText(this->Instance->Config->ServerName,servermask))
+ {
+ this->Instance->SNO->WriteToSnoMask('l',"Remote rehash initiated by \002"+prefix+"\002.");
+ this->Instance->RehashServer();
+ Utils->ReadConfiguration(false);
+ InitializeDisabledCommands(Instance->Config->DisabledCommands, Instance);
+ }
+ Utils->DoOneToAllButSender(prefix,"REHASH",params,prefix);
+ return true;
+}
+
+bool TreeSocket::RemoteKill(const std::string &prefix, std::deque<std::string> &params)
+{
+ if (params.size() != 2)
+ return true;
+
+ std::string nick = params[0];
+ userrec* u = this->Instance->FindNick(prefix);
+ userrec* who = this->Instance->FindNick(nick);
+
+ if (who)
+ {
+ /* Prepend kill source, if we don't have one */
+ std::string sourceserv = prefix;
+ if (u)
+ {
+ sourceserv = u->server;
+ }
+ if (*(params[1].c_str()) != '[')
+ {
+ params[1] = "[" + sourceserv + "] Killed (" + params[1] +")";
+ }
+ std::string reason = params[1];
+ params[1] = ":" + params[1];
+ Utils->DoOneToAllButSender(prefix,"KILL",params,sourceserv);
+ who->Write(":%s KILL %s :%s (%s)", sourceserv.c_str(), who->nick, sourceserv.c_str(), reason.c_str());
+ userrec::QuitUser(this->Instance,who,reason);
+ }
+ return true;
+}
+
+bool TreeSocket::LocalPong(const std::string &prefix, std::deque<std::string> &params)
+{
+ if (params.size() < 1)
+ return true;
+
+ if (params.size() == 1)
+ {
+ TreeServer* ServerSource = Utils->FindServer(prefix);
+ if (ServerSource)
+ {
+ ServerSource->SetPingFlag();
+ }
+ }
+ else
+ {
+ std::string forwardto = params[1];
+ if (forwardto == this->Instance->Config->ServerName)
+ {
+ /*
+ * this is a PONG for us
+ * if the prefix is a user, check theyre local, and if they are,
+ * dump the PONG reply back to their fd. If its a server, do nowt.
+ * Services might want to send these s->s, but we dont need to yet.
+ */
+ userrec* u = this->Instance->FindNick(prefix);
+ if (u)
+ {
+ u->WriteServ("PONG %s %s",params[0].c_str(),params[1].c_str());
+ }
+ }
+ else
+ {
+ // not for us, pass it on :)
+ Utils->DoOneToOne(prefix,"PONG",params,forwardto);
+ }
+ }
+
+ return true;
+}
+
+bool TreeSocket::MetaData(const std::string &prefix, std::deque<std::string> &params)
+{
+ if (params.size() < 3)
+ return true;
+ TreeServer* ServerSource = Utils->FindServer(prefix);
+ if (ServerSource)
+ {
+ if (params[0] == "*")
+ {
+ FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_OTHER,NULL,params[1],params[2]));
+ }
+ else if (*(params[0].c_str()) == '#')
+ {
+ chanrec* c = this->Instance->FindChan(params[0]);
+ if (c)
+ {
+ FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_CHANNEL,c,params[1],params[2]));
+ }
+ }
+ else if (*(params[0].c_str()) != '#')
+ {
+ userrec* u = this->Instance->FindNick(params[0]);
+ if (u)
+ {
+ FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_USER,u,params[1],params[2]));
+ }
+ }
+ }
+
+ params[2] = ":" + params[2];
+ Utils->DoOneToAllButSender(prefix,"METADATA",params,prefix);
+ return true;
+}
+
+bool TreeSocket::ServerVersion(const std::string &prefix, std::deque<std::string> &params)
+{
+ if (params.size() < 1)
+ return true;
+
+ TreeServer* ServerSource = Utils->FindServer(prefix);
+
+ if (ServerSource)
+ {
+ ServerSource->SetVersion(params[0]);
+ }
+ params[0] = ":" + params[0];
+ Utils->DoOneToAllButSender(prefix,"VERSION",params,prefix);
+ return true;
+}
+
+bool TreeSocket::ChangeHost(const std::string &prefix, std::deque<std::string> &params)
+{
+ if (params.size() < 1)
+ return true;
+ userrec* u = this->Instance->FindNick(prefix);
+
+ if (u)
+ {
+ u->ChangeDisplayedHost(params[0].c_str());
+ Utils->DoOneToAllButSender(prefix,"FHOST",params,u->server);
+ }
+ return true;
+}
+
+bool TreeSocket::AddLine(const std::string &prefix, std::deque<std::string> &params)
+{
+ if (params.size() < 6)
+ return true;
+ bool propogate = false;
+ if (!this->bursting)
+ Utils->lines_to_apply = 0;
+ switch (*(params[0].c_str()))
+ {
+ case 'Z':
+ propogate = Instance->XLines->add_zline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
+ Instance->XLines->zline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
+ if (propogate)
+ Utils->lines_to_apply |= APPLY_ZLINES;
+ break;
+ case 'Q':
+ propogate = Instance->XLines->add_qline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
+ Instance->XLines->qline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
+ if (propogate)
+ Utils->lines_to_apply |= APPLY_QLINES;
+ break;
+ case 'E':
+ propogate = Instance->XLines->add_eline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
+ Instance->XLines->eline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
+ break;
+ case 'G':
+ propogate = Instance->XLines->add_gline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
+ Instance->XLines->gline_set_creation_time(params[1].c_str(), atoi(params[3].c_str()));
+ if (propogate)
+ Utils->lines_to_apply |= APPLY_GLINES;
+ break;
+ case 'K':
+ propogate = Instance->XLines->add_kline(atoi(params[4].c_str()), params[2].c_str(), params[5].c_str(), params[1].c_str());
+ if (propogate)
+ Utils->lines_to_apply |= APPLY_KLINES;
+ break;
+ default:
+ /* Just in case... */
+ this->Instance->SNO->WriteToSnoMask('x',"\2WARNING\2: Invalid xline type '"+params[0]+"' sent by server "+prefix+", ignored!");
+ propogate = false;
+ break;
+ }
+ /* Send it on its way */
+ if (propogate)
+ {
+ if (atoi(params[4].c_str()))
+ {
+ this->Instance->SNO->WriteToSnoMask('x',"%s Added %cLINE on %s to expire in %lu seconds (%s).",prefix.c_str(),*(params[0].c_str()),params[1].c_str(),atoi(params[4].c_str()),params[5].c_str());
+ }
+ else
+ {
+ this->Instance->SNO->WriteToSnoMask('x',"%s Added permenant %cLINE on %s (%s).",prefix.c_str(),*(params[0].c_str()),params[1].c_str(),params[5].c_str());
+ }
+ params[5] = ":" + params[5];
+ Utils->DoOneToAllButSender(prefix,"ADDLINE",params,prefix);
+ }
+ if (!this->bursting)
+ {
+ Instance->XLines->apply_lines(Utils->lines_to_apply);
+ Utils->lines_to_apply = 0;
+ }
+ return true;
+}
+
+bool TreeSocket::ChangeName(const std::string &prefix, std::deque<std::string> &params)
+{
+ if (params.size() < 1)
+ return true;
+ userrec* u = this->Instance->FindNick(prefix);
+ if (u)
+ {
+ u->ChangeName(params[0].c_str());
+ params[0] = ":" + params[0];
+ Utils->DoOneToAllButSender(prefix,"FNAME",params,u->server);
+ }
+ return true;
+}
+
+bool TreeSocket::Whois(const std::string &prefix, std::deque<std::string> &params)
+{
+ if (params.size() < 1)
+ return true;
+ userrec* u = this->Instance->FindNick(prefix);
+ if (u)
+ {
+ // an incoming request
+ if (params.size() == 1)
+ {
+ userrec* x = this->Instance->FindNick(params[0]);
+ if ((x) && (IS_LOCAL(x)))
+ {
+ userrec* x = this->Instance->FindNick(params[0]);
+ char signon[MAXBUF];
+ char idle[MAXBUF];
+ snprintf(signon,MAXBUF,"%lu",(unsigned long)x->signon);
+ snprintf(idle,MAXBUF,"%lu",(unsigned long)abs((x->idle_lastmsg)-Instance->Time(true)));
+ std::deque<std::string> par;
+ par.push_back(prefix);
+ par.push_back(signon);
+ par.push_back(idle);
+ // ours, we're done, pass it BACK
+ Utils->DoOneToOne(params[0],"IDLE",par,u->server);
+ }
+ else
+ {
+ // not ours pass it on
+ Utils->DoOneToOne(prefix,"IDLE",params,x->server);
+ }
+ }
+ else if (params.size() == 3)
+ {
+ std::string who_did_the_whois = params[0];
+ userrec* who_to_send_to = this->Instance->FindNick(who_did_the_whois);
+ if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
+ {
+ // an incoming reply to a whois we sent out
+ std::string nick_whoised = prefix;
+ unsigned long signon = atoi(params[1].c_str());
+ unsigned long idle = atoi(params[2].c_str());
+ if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
+ do_whois(this->Instance,who_to_send_to,u,signon,idle,nick_whoised.c_str());
+ }
+ else
+ {
+ // not ours, pass it on
+ Utils->DoOneToOne(prefix,"IDLE",params,who_to_send_to->server);
+ }
+ }
+ }
+ return true;
+}
+
+bool TreeSocket::Push(const std::string &prefix, std::deque<std::string> &params)
+{
+ if (params.size() < 2)
+ return true;
+ userrec* u = this->Instance->FindNick(params[0]);
+ if (!u)
+ return true;
+ if (IS_LOCAL(u))
+ {
+ u->Write(params[1]);
+ }
+ else
+ {
+ // continue the raw onwards
+ params[1] = ":" + params[1];
+ Utils->DoOneToOne(prefix,"PUSH",params,u->server);
+ }
+ return true;
+}
+
+bool TreeSocket::HandleSetTime(const std::string &prefix, std::deque<std::string> &params)
+{
+ if (!params.size() || !Utils->EnableTimeSync)
+ return true;
+
+ bool force = false;
+
+ if ((params.size() == 2) && (params[1] == "FORCE"))
+ force = true;
+
+ time_t rts = atoi(params[0].c_str());
+ time_t us = Instance->Time(true);
+
+ if (rts == us)
+ {
+ Utils->DoOneToAllButSender(prefix, "TIMESET", params, prefix);
+ }
+ else if (force || (rts < us))
+ {
+ int old = Instance->SetTimeDelta(rts - us);
+ Instance->Log(DEBUG, "%s TS (diff %d) from %s applied (old delta was %d)", (force) ? "Forced" : "Lower", rts - us, prefix.c_str(), old);
+
+ Utils->DoOneToAllButSender(prefix, "TIMESET", params, prefix);
+ }
+ else
+ {
+ Instance->Log(DEBUG, "Higher TS (diff %d) from %s overridden", us - rts, prefix.c_str());
+
+ std::deque<std::string> oparams;
+ oparams.push_back(ConvToStr(us));
+
+ Utils->DoOneToMany(prefix, "TIMESET", oparams);
+ }
+
+ return true;
+}
+
+bool TreeSocket::Time(const std::string &prefix, std::deque<std::string> &params)
+{
+ // :source.server TIME remote.server sendernick
+ // :remote.server TIME source.server sendernick TS
+ if (params.size() == 2)
+ {
+ // someone querying our time?
+ if (this->Instance->Config->ServerName == params[0])
+ {
+ userrec* u = this->Instance->FindNick(params[1]);
+ if (u)
+ {
+ params.push_back(ConvToStr(Instance->Time(false)));
+ params[0] = prefix;
+ Utils->DoOneToOne(this->Instance->Config->ServerName,"TIME",params,params[0]);
+ }
+ }
+ else
+ {
+ // not us, pass it on
+ userrec* u = this->Instance->FindNick(params[1]);
+ if (u)
+ Utils->DoOneToOne(prefix,"TIME",params,params[0]);
+ }
+ }
+ else if (params.size() == 3)
+ {
+ // a response to a previous TIME
+ userrec* u = this->Instance->FindNick(params[1]);
+ if ((u) && (IS_LOCAL(u)))
+ {
+ time_t rawtime = atol(params[2].c_str());
+ struct tm * timeinfo;
+ timeinfo = localtime(&rawtime);
+ char tms[26];
+ snprintf(tms,26,"%s",asctime(timeinfo));
+ tms[24] = 0;
+ u->WriteServ("391 %s %s :%s",u->nick,prefix.c_str(),tms);
+ }
+ else
+ {
+ if (u)
+ Utils->DoOneToOne(prefix,"TIME",params,u->server);
+ }
+ }
+ return true;
+}
+
+bool TreeSocket::LocalPing(const std::string &prefix, std::deque<std::string> &params)
+{
+ if (params.size() < 1)
+ return true;
+ if (params.size() == 1)
+ {
+ std::string stufftobounce = params[0];
+ this->WriteLine(std::string(":")+this->Instance->Config->ServerName+" PONG "+stufftobounce);
+ return true;
+ }
+ else
+ {
+ std::string forwardto = params[1];
+ if (forwardto == this->Instance->Config->ServerName)
+ {
+ // this is a ping for us, send back PONG to the requesting server
+ params[1] = params[0];
+ params[0] = forwardto;
+ Utils->DoOneToOne(forwardto,"PONG",params,params[1]);
+ }
+ else
+ {
+ // not for us, pass it on :)
+ Utils->DoOneToOne(prefix,"PING",params,forwardto);
+ }
+ return true;
+ }
+}
+
+bool TreeSocket::RemoveStatus(const std::string &prefix, std::deque<std::string> &params)
+{
+ if (params.size() < 1)
+ return true;
+ chanrec* c = Instance->FindChan(params[0]);
+ if (c)
+ {
+ irc::modestacker modestack(false);
+ CUList *ulist = c->GetUsers();
+ const char* y[127];
+ std::deque<std::string> stackresult;
+ std::string x;
+ for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
+ {
+ std::string modesequence = Instance->Modes->ModeString(i->second, c);
+ if (modesequence.length())
+ {
+ irc::spacesepstream sep(modesequence);
+ std::string modeletters = sep.GetToken();
+ while (!modeletters.empty())
+ {
+ char mletter = *(modeletters.begin());
+ modestack.Push(mletter,sep.GetToken());
+ modeletters.erase(modeletters.begin());
+ }
+ }
+ }
+
+ while (modestack.GetStackedLine(stackresult))
+ {
+ stackresult.push_front(ConvToStr(c->age));
+ stackresult.push_front(c->name);
+ Utils->DoOneToMany(Instance->Config->ServerName, "FMODE", stackresult);
+ stackresult.erase(stackresult.begin() + 1);
+ for (size_t z = 0; z < stackresult.size(); z++)
+ {
+ y[z] = stackresult[z].c_str();
+ }
+ userrec* n = new userrec(Instance);
+ n->SetFd(FD_MAGIC_NUMBER);
+ Instance->SendMode(y, stackresult.size(), n);
+ delete n;
+ }
+ }
+ return true;
+}
+
+bool TreeSocket::RemoteServer(const std::string &prefix, std::deque<std::string> &params)
+{
+ if (params.size() < 4)
+ return false;
+ std::string servername = params[0];
+ std::string password = params[1];
+ // hopcount is not used for a remote server, we calculate this ourselves
+ std::string description = params[3];
+ TreeServer* ParentOfThis = Utils->FindServer(prefix);
+ if (!ParentOfThis)
+ {
+ this->WriteLine("ERROR :Protocol error - Introduced remote server from unknown server "+prefix);
+ return false;
+ }
+ TreeServer* CheckDupe = Utils->FindServer(servername);
+ if (CheckDupe)
+ {
+ this->WriteLine("ERROR :Server "+servername+" already exists!");
+ this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+servername+"\2 denied, already exists");
+ return false;
+ }
+ TreeServer* Node = new TreeServer(this->Utils,this->Instance,servername,description,ParentOfThis,NULL);
+ ParentOfThis->AddChild(Node);
+ params[3] = ":" + params[3];
+ Utils->DoOneToAllButSender(prefix,"SERVER",params,prefix);
+ this->Instance->SNO->WriteToSnoMask('l',"Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")");
+ return true;
+}
+
+bool TreeSocket::Outbound_Reply_Server(std::deque<std::string> &params)
+{
+ if (params.size() < 4)
+ return false;
+
+ irc::string servername = params[0].c_str();
+ std::string sname = params[0];
+ std::string password = params[1];
+ int hops = atoi(params[2].c_str());
+
+ if (hops)
+ {
+ this->WriteLine("ERROR :Server too far away for authentication");
+ this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
+ return false;
+ }
+ std::string description = params[3];
+ for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
+ {
+ if ((x->Name == servername) && (x->RecvPass == password))
+ {
+ TreeServer* CheckDupe = Utils->FindServer(sname);
+ if (CheckDupe)
+ {
+ this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
+ this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
+ return false;
+ }
+ // Begin the sync here. this kickstarts the
+ // other side, waiting in WAIT_AUTH_2 state,
+ // into starting their burst, as it shows
+ // that we're happy.
+ this->LinkState = CONNECTED;
+ // we should add the details of this server now
+ // to the servers tree, as a child of the root
+ // node.
+ TreeServer* Node = new TreeServer(this->Utils,this->Instance,sname,description,Utils->TreeRoot,this);
+ Utils->TreeRoot->AddChild(Node);
+ params[3] = ":" + params[3];
+ Utils->DoOneToAllButSender(Utils->TreeRoot->GetName(),"SERVER",params,sname);
+ this->bursting = true;
+ this->DoBurst(Node);
+ return true;
+ }
+ }
+ this->WriteLine("ERROR :Invalid credentials");
+ this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");
+ return false;
+}
+
+bool TreeSocket::Inbound_Server(std::deque<std::string> &params)
+{
+ if (params.size() < 4)
+ return false;
+ irc::string servername = params[0].c_str();
+ std::string sname = params[0];
+ std::string password = params[1];
+ int hops = atoi(params[2].c_str());
+
+ if (hops)
+ {
+ this->WriteLine("ERROR :Server too far away for authentication");
+ this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
+ return false;
+ }
+ std::string description = params[3];
+ for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
+ {
+ if ((x->Name == servername) && (x->RecvPass == password))
+ {
+ TreeServer* CheckDupe = Utils->FindServer(sname);
+ if (CheckDupe)
+ {
+ this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
+ this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
+ return false;
+ }
+ this->Instance->SNO->WriteToSnoMask('l',"Verified incoming server connection from \002"+sname+"\002["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] ("+description+")");
+ if (this->Hook)
+ {
+ std::string name = InspSocketNameRequest((Module*)Utils->Creator, this->Hook).Send();
+ this->Instance->SNO->WriteToSnoMask('l',"Connection from \2"+sname+"\2["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] using transport \2"+name+"\2");
+ }
+
+ this->InboundServerName = sname;
+ this->InboundDescription = description;
+ // this is good. Send our details: Our server name and description and hopcount of 0,
+ // along with the sendpass from this block.
+ this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+x->SendPass+" 0 :"+this->Instance->Config->ServerDesc);
+ // move to the next state, we are now waiting for THEM.
+ this->LinkState = WAIT_AUTH_2;
+ return true;
+ }
+ }
+ this->WriteLine("ERROR :Invalid credentials");
+ this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials");
+ return false;
+}
+
+void TreeSocket::Split(const std::string &line, std::deque<std::string> &n)
+{
+ n.clear();
+ irc::tokenstream tokens(line);
+ std::string param;
+ while ((param = tokens.GetToken()) != "")
+ n.push_back(param);
+ return;
+}
+
+bool TreeSocket::ProcessLine(std::string &line)
+{
+ std::deque<std::string> params;
+ irc::string command;
+ std::string prefix;
+
+ line = line.substr(0, line.find_first_of("\r\n"));
+
+ if (line.empty())
+ return true;
+
+ Instance->Log(DEBUG, "<- %s", line.c_str());
+
+ this->Split(line.c_str(),params);
+
+ if ((params[0][0] == ':') && (params.size() > 1))
+ {
+ prefix = params[0].substr(1);
+ params.pop_front();
+ }
+ command = params[0].c_str();
+ params.pop_front();
+ switch (this->LinkState)
+ {
+ TreeServer* Node;
+
+ case WAIT_AUTH_1:
+ // Waiting for SERVER command from remote server. Server initiating
+ // the connection sends the first SERVER command, listening server
+ // replies with theirs if its happy, then if the initiator is happy,
+ // it starts to send its net sync, which starts the merge, otherwise
+ // it sends an ERROR.
+ if (command == "PASS")
+ {
+ /* Silently ignored */
+ }
+ else if (command == "SERVER")
+ {
+ return this->Inbound_Server(params);
+ }
+ else if (command == "ERROR")
+ {
+ return this->Error(params);
+ }
+ else if (command == "USER")
+ {
+ this->WriteLine("ERROR :Client connections to this port are prohibited.");
+ return false;
+ }
+ else if (command == "CAPAB")
+ {
+ return this->Capab(params);
+ }
+ else if ((command == "U") || (command == "S"))
+ {
+ this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
+ return false;
+ }
+ else
+ {
+ std::string error("ERROR :Invalid command in negotiation phase: ");
+ error.append(command.c_str());
+ this->WriteLine(error);
+ return false;
+ }
+ break;
+ case WAIT_AUTH_2:
+ // Waiting for start of other side's netmerge to say they liked our
+ // password.
+ if (command == "SERVER")
+ {
+ // cant do this, they sent it to us in the WAIT_AUTH_1 state!
+ // silently ignore.
+ return true;
+ }
+ else if ((command == "U") || (command == "S"))
+ {
+ this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!");
+ return false;
+ }
+ else if (command == "BURST")
+ {
+ if (params.size() && Utils->EnableTimeSync)
+ {
+ /* If a time stamp is provided, apply synchronization */
+ bool force = false;
+ time_t them = atoi(params[0].c_str());
+ time_t us = Instance->Time(true);
+ int delta = them - us;
+ if ((params.size() == 2) && (params[1] == "FORCE"))
+ force = true;
+ if ((delta < -600) || (delta > 600))
+ {
+ this->Instance->SNO->WriteToSnoMask('l',"\2ERROR\2: Your clocks are out by %d seconds (this is more than ten minutes). Link aborted, \2PLEASE SYNC YOUR CLOCKS!\2",abs(delta));
+ this->WriteLine("ERROR :Your clocks are out by "+ConvToStr(abs(delta))+" seconds (this is more than ten minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!");
+ return false;
+ }
+
+ if (force || (us > them))
+ {
+ this->Instance->SetTimeDelta(them - us);
+ // Send this new timestamp to any other servers
+ Utils->DoOneToMany(Utils->TreeRoot->GetName(), "TIMESET", params);
+ }
+ else
+ {
+ // Override the timestamp
+ this->WriteLine(":" + Utils->TreeRoot->GetName() + " TIMESET " + ConvToStr(us));
+ }
+ }
+ this->LinkState = CONNECTED;
+ Node = new TreeServer(this->Utils,this->Instance,InboundServerName,InboundDescription,Utils->TreeRoot,this);
+ Utils->TreeRoot->AddChild(Node);
+ params.clear();
+ params.push_back(InboundServerName);
+ params.push_back("*");
+ params.push_back("1");
+ params.push_back(":"+InboundDescription);
+ Utils->DoOneToAllButSender(Utils->TreeRoot->GetName(),"SERVER",params,InboundServerName);
+ this->bursting = true;
+ this->DoBurst(Node);
+ }
+ else if (command == "ERROR")
+ {
+ return this->Error(params);
+ }
+ else if (command == "CAPAB")
+ {
+ return this->Capab(params);
+ }
+
+ break;
+ case LISTENER:
+ this->WriteLine("ERROR :Internal error -- listening socket accepted its own descriptor!!!");
+ return false;
+ break;
+ case CONNECTING:
+ if (command == "SERVER")
+ {
+ // another server we connected to, which was in WAIT_AUTH_1 state,
+ // has just sent us their credentials. If we get this far, theyre
+ // happy with OUR credentials, and they are now in WAIT_AUTH_2 state.
+ // if we're happy with this, we should send our netburst which
+ // kickstarts the merge.
+ return this->Outbound_Reply_Server(params);
+ }
+ else if (command == "ERROR")
+ {
+ return this->Error(params);
+ }
+ break;
+ case CONNECTED:
+ // This is the 'authenticated' state, when all passwords
+ // have been exchanged and anything past this point is taken
+ // as gospel.
+
+ if (prefix != "")
+ {
+ std::string direction = prefix;
+ userrec* t = this->Instance->FindNick(prefix);
+ if (t)
+ {
+ direction = t->server;
+ }
+ TreeServer* route_back_again = Utils->BestRouteTo(direction);
+ if ((!route_back_again) || (route_back_again->GetSocket() != this))
+ {
+ if (route_back_again)
+ Instance->Log(DEBUG,"Protocol violation: Fake direction in command '%s' from connection '%s'",line.c_str(),this->GetName().c_str());
+ return true;
+ }
+ /* Fix by brain:
+ * When there is activity on the socket, reset the ping counter so
+ * that we're not wasting bandwidth pinging an active server.
+ */
+ route_back_again->SetNextPingTime(time(NULL) + 60);
+ route_back_again->SetPingFlag();
+ }
+
+ if (command == "SVSMODE")
+ {
+ /* Services expects us to implement
+ * SVSMODE. In inspircd its the same as
+ * MODE anyway.
+ */
+ command = "MODE";
+ }
+ std::string target = "";
+ /* Yes, know, this is a mess. Its reasonably fast though as we're
+ * working with std::string here.
+ */
+ if ((command == "NICK") && (params.size() > 1))
+ {
+ return this->IntroduceClient(prefix,params);
+ }
+ else if (command == "FJOIN")
+ {
+ return this->ForceJoin(prefix,params);
+ }
+ else if (command == "STATS")
+ {
+ return this->Stats(prefix, params);
+ }
+ else if (command == "MOTD")
+ {
+ return this->Motd(prefix, params);
+ }
+ else if (command == "ADMIN")
+ {
+ return this->Admin(prefix, params);
+ }
+ else if (command == "SERVER")
+ {
+ return this->RemoteServer(prefix,params);
+ }
+ else if (command == "ERROR")
+ {
+ return this->Error(params);
+ }
+ else if (command == "OPERTYPE")
+ {
+ return this->OperType(prefix,params);
+ }
+ else if (command == "FMODE")
+ {
+ return this->ForceMode(prefix,params);
+ }
+ else if (command == "KILL")
+ {
+ return this->RemoteKill(prefix,params);
+ }
+ else if (command == "FTOPIC")
+ {
+ return this->ForceTopic(prefix,params);
+ }
+ else if (command == "REHASH")
+ {
+ return this->RemoteRehash(prefix,params);
+ }
+ else if (command == "METADATA")
+ {
+ return this->MetaData(prefix,params);
+ }
+ else if (command == "REMSTATUS")
+ {
+ return this->RemoveStatus(prefix,params);
+ }
+ else if (command == "PING")
+ {
+ /*
+ * We just got a ping from a server that's bursting.
+ * This can't be right, so set them to not bursting, and
+ * apply their lines.
+ */
+ if (this->bursting)
+ {
+ this->bursting = false;
+ Instance->XLines->apply_lines(Utils->lines_to_apply);
+ Utils->lines_to_apply = 0;
+ }
+ if (prefix == "")
+ {
+ prefix = this->GetName();
+ }
+ return this->LocalPing(prefix,params);
+ }
+ else if (command == "PONG")
+ {
+ /*
+ * We just got a pong from a server that's bursting.
+ * This can't be right, so set them to not bursting, and
+ * apply their lines.
+ */
+ if (this->bursting)
+ {
+ this->bursting = false;
+ Instance->XLines->apply_lines(Utils->lines_to_apply);
+ Utils->lines_to_apply = 0;
+ }
+ if (prefix == "")
+ {
+ prefix = this->GetName();
+ }
+ return this->LocalPong(prefix,params);
+ }
+ else if (command == "VERSION")
+ {
+ return this->ServerVersion(prefix,params);
+ }
+ else if (command == "FHOST")
+ {
+ return this->ChangeHost(prefix,params);
+ }
+ else if (command == "FNAME")
+ {
+ return this->ChangeName(prefix,params);
+ }
+ else if (command == "ADDLINE")
+ {
+ return this->AddLine(prefix,params);
+ }
+ else if (command == "SVSNICK")
+ {
+ if (prefix == "")
+ {
+ prefix = this->GetName();
+ }
+ return this->ForceNick(prefix,params);
+ }
+ else if (command == "RSQUIT")
+ {
+ return this->RemoteSquit(prefix, params);
+ }
+ else if (command == "IDLE")
+ {
+ return this->Whois(prefix,params);
+ }
+ else if (command == "PUSH")
+ {
+ return this->Push(prefix,params);
+ }
+ else if (command == "TIMESET")
+ {
+ return this->HandleSetTime(prefix, params);
+ }
+ else if (command == "TIME")
+ {
+ return this->Time(prefix,params);
+ }
+ else if ((command == "KICK") && (Utils->IsServer(prefix)))
+ {
+ std::string sourceserv = this->myhost;
+ if (params.size() == 3)
+ {
+ userrec* user = this->Instance->FindNick(params[1]);
+ chanrec* chan = this->Instance->FindChan(params[0]);
+ if (user && chan)
+ {
+ if (!chan->ServerKickUser(user, params[2].c_str(), false))
+ /* Yikes, the channels gone! */
+ delete chan;
+ }
+ }
+ if (this->InboundServerName != "")
+ {
+ sourceserv = this->InboundServerName;
+ }
+ return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
+ }
+ else if (command == "SVSJOIN")
+ {
+ if (prefix == "")
+ {
+ prefix = this->GetName();
+ }
+ return this->ServiceJoin(prefix,params);
+ }
+ else if (command == "SQUIT")
+ {
+ if (params.size() == 2)
+ {
+ this->Squit(Utils->FindServer(params[0]),params[1]);
+ }
+ return true;
+ }
+ else if (command == "OPERNOTICE")
+ {
+ std::string sourceserv = this->myhost;
+ if (this->InboundServerName != "")
+ sourceserv = this->InboundServerName;
+ if (params.size() >= 1)
+ Instance->WriteOpers("*** From " + sourceserv + ": " + params[0]);
+ return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
+ }
+ else if (command == "MODENOTICE")
+ {
+ std::string sourceserv = this->myhost;
+ if (this->InboundServerName != "")
+ sourceserv = this->InboundServerName;
+ if (params.size() >= 2)
+ {
+ Instance->WriteMode(params[0].c_str(), WM_AND, "*** From %s: %s", sourceserv.c_str(), params[1].c_str());
+ }
+ return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
+ }
+ else if (command == "SNONOTICE")
+ {
+ std::string sourceserv = this->myhost;
+ if (this->InboundServerName != "")
+ sourceserv = this->InboundServerName;
+ if (params.size() >= 2)
+ {
+ Instance->SNO->WriteToSnoMask(*(params[0].c_str()), "From " + sourceserv + ": "+ params[1]);
+ }
+ return Utils->DoOneToAllButSenderRaw(line, sourceserv, prefix, command, params);
+ }
+ else if (command == "ENDBURST")
+ {
+ this->bursting = false;
+ Instance->XLines->apply_lines(Utils->lines_to_apply);
+ Utils->lines_to_apply = 0;
+ std::string sourceserv = this->myhost;
+ if (this->InboundServerName != "")
+ {
+ sourceserv = this->InboundServerName;
+ }
+ this->Instance->SNO->WriteToSnoMask('l',"Received end of netburst from \2%s\2",sourceserv.c_str());
+
+ Event rmode((char*)sourceserv.c_str(), (Module*)Utils->Creator, "new_server");
+ rmode.Send(Instance);
+
+ return true;
+ }
+ else
+ {
+ // not a special inter-server command.
+ // Emulate the actual user doing the command,
+ // this saves us having a huge ugly parser.
+ userrec* who = this->Instance->FindNick(prefix);
+ std::string sourceserv = this->myhost;
+ if (this->InboundServerName != "")
+ {
+ sourceserv = this->InboundServerName;
+ }
+ if ((!who) && (command == "MODE"))
+ {
+ if (Utils->IsServer(prefix))
+ {
+ const char* modelist[127];
+ for (size_t i = 0; i < params.size(); i++)
+ modelist[i] = params[i].c_str();
+ userrec* fake = new userrec(Instance);
+ fake->SetFd(FD_MAGIC_NUMBER);
+ this->Instance->SendMode(modelist, params.size(), fake);
+
+ delete fake;
+ /* Hot potato! pass it on! */
+ return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
+ }
+ }
+ if (who)
+ {
+ if ((command == "NICK") && (params.size() > 0))
+ {
+ /* On nick messages, check that the nick doesnt
+ * already exist here. If it does, kill their copy,
+ * and our copy.
+ */
+ userrec* x = this->Instance->FindNick(params[0]);
+ if ((x) && (x != who))
+ {
+ std::deque<std::string> p;
+ p.push_back(params[0]);
+ p.push_back("Nickname collision ("+prefix+" -> "+params[0]+")");
+ Utils->DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
+ p.clear();
+ p.push_back(prefix);
+ p.push_back("Nickname collision");
+ Utils->DoOneToMany(this->Instance->Config->ServerName,"KILL",p);
+ userrec::QuitUser(this->Instance,x,"Nickname collision ("+prefix+" -> "+params[0]+")");
+ userrec* y = this->Instance->FindNick(prefix);
+ if (y)
+ {
+ userrec::QuitUser(this->Instance,y,"Nickname collision");
+ }
+ return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
+ }
+ }
+ // its a user
+ target = who->server;
+ const char* strparams[127];
+ for (unsigned int q = 0; q < params.size(); q++)
+ {
+ strparams[q] = params[q].c_str();
+ }
+ switch (this->Instance->CallCommandHandler(command.c_str(), strparams, params.size(), who))
+ {
+ case CMD_INVALID:
+ this->WriteLine("ERROR :Unrecognised command '"+std::string(command.c_str())+"' -- possibly loaded mismatched modules");
+ return false;
+ break;
+ case CMD_FAILURE:
+ return true;
+ break;
+ default:
+ /* CMD_SUCCESS and CMD_USER_DELETED fall through here */
+ break;
+ }
+ }
+ else
+ {
+ // its not a user. Its either a server, or somethings screwed up.
+ if (Utils->IsServer(prefix))
+ target = this->Instance->Config->ServerName;
+ else
+ return true;
+ }
+ return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
+
+ }
+ return true;
+ break;
+ }
+ return true;
+}
+
+std::string TreeSocket::GetName()
+{
+ std::string sourceserv = this->myhost;
+ if (this->InboundServerName != "")
+ {
+ sourceserv = this->InboundServerName;
+ }
+ return sourceserv;
+}
+
+void TreeSocket::OnTimeout()
+{
+ if (this->LinkState == CONNECTING)
+ {
+ this->Instance->SNO->WriteToSnoMask('l',"CONNECT: Connection to \002"+myhost+"\002 timed out.");
+ Link* MyLink = Utils->FindLink(myhost);
+ if (MyLink)
+ Utils->DoFailOver(MyLink);
+ }
+}
+
+void TreeSocket::OnClose()
+{
+ // Connection closed.
+ // If the connection is fully up (state CONNECTED)
+ // then propogate a netsplit to all peers.
+ std::string quitserver = this->myhost;
+ if (this->InboundServerName != "")
+ {
+ quitserver = this->InboundServerName;
+ }
+ TreeServer* s = Utils->FindServer(quitserver);
+ if (s)
+ {
+ Squit(s,"Remote host closed the connection");
+ }
+
+ if (quitserver != "")
+ this->Instance->SNO->WriteToSnoMask('l',"Connection to '\2%s\2' failed.",quitserver.c_str());
+}
+
+int TreeSocket::OnIncomingConnection(int newsock, char* ip)
+{
+ /* To prevent anyone from attempting to flood opers/DDoS by connecting to the server port,
+ * or discovering if this port is the server port, we don't allow connections from any
+ * IPs for which we don't have a link block.
+ */
+ bool found = false;
+
+ found = (std::find(Utils->ValidIPs.begin(), Utils->ValidIPs.end(), ip) != Utils->ValidIPs.end());
+ if (!found)
+ {
+ for (vector<std::string>::iterator i = Utils->ValidIPs.begin(); i != Utils->ValidIPs.end(); i++)
+ if (irc::sockets::MatchCIDR(ip, (*i).c_str()))
+ found = true;
+
+ if (!found)
+ {
+ this->Instance->SNO->WriteToSnoMask('l',"Server connection from %s denied (no link blocks with that IP address)", ip);
+ close(newsock);
+ return false;
+ }
+ }
+
+ TreeSocket* s = new TreeSocket(this->Utils, this->Instance, newsock, ip, this->Hook);
+ s = s; /* Whinge whinge whinge, thats all GCC ever does. */
+ return true;
+}
diff --git a/src/modules/m_spanningtree/treesocket.h b/src/modules/m_spanningtree/treesocket.h
new file mode 100644
index 000000000..7758f7859
--- /dev/null
+++ b/src/modules/m_spanningtree/treesocket.h
@@ -0,0 +1,278 @@
+#ifndef __TREESOCKET_H__
+#define __TREESOCKET_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 "inspircd.h"
+#include "wildcard.h"
+#include "xline.h"
+#include "transport.h"
+
+#include "m_spanningtree/utils.h"
+
+/*
+ * The server list in InspIRCd is maintained as two structures
+ * which hold the data in different ways. Most of the time, we
+ * want to very quicky obtain three pieces of information:
+ *
+ * (1) The information on a server
+ * (2) The information on the server we must send data through
+ * to actually REACH the server we're after
+ * (3) Potentially, the child/parent objects of this server
+ *
+ * The InspIRCd spanning protocol provides easy access to these
+ * by storing the data firstly in a recursive structure, where
+ * each item references its parent item, and a dynamic list
+ * of child items, and another structure which stores the items
+ * hashed, linearly. This means that if we want to find a server
+ * by name quickly, we can look it up in the hash, avoiding
+ * any O(n) lookups. If however, during a split or sync, we want
+ * to apply an operation to a server, and any of its child objects
+ * we can resort to recursion to walk the tree structure.
+ * Any socket can have one of five states at any one time.
+ * The LISTENER state indicates a socket which is listening
+ * for connections. It cannot receive data itself, only incoming
+ * sockets.
+ * The CONNECTING state indicates an outbound socket which is
+ * waiting to be writeable.
+ * The WAIT_AUTH_1 state indicates the socket is outbound and
+ * has successfully connected, but has not yet sent and received
+ * SERVER strings.
+ * The WAIT_AUTH_2 state indicates that the socket is inbound
+ * (allocated by a LISTENER) but has not yet sent and received
+ * SERVER strings.
+ * The CONNECTED state represents a fully authorized, fully
+ * connected server.
+ */
+enum ServerState { LISTENER, CONNECTING, WAIT_AUTH_1, WAIT_AUTH_2, CONNECTED };
+
+/** Every SERVER connection inbound or outbound is represented by
+ * an object of type TreeSocket.
+ * TreeSockets, being inherited from InspSocket, can be tied into
+ * the core socket engine, and we cn therefore receive activity events
+ * for them, just like activex objects on speed. (yes really, that
+ * is a technical term!) Each of these which relates to a locally
+ * connected server is assocated with it, by hooking it onto a
+ * TreeSocket class using its constructor. In this way, we can
+ * maintain a list of servers, some of which are directly connected,
+ * some of which are not.
+ */
+class TreeSocket : public InspSocket
+{
+ SpanningTreeUtilities* Utils;
+ std::string myhost;
+ std::string in_buffer;
+ ServerState LinkState;
+ std::string InboundServerName;
+ std::string InboundDescription;
+ int num_lost_users;
+ int num_lost_servers;
+ time_t NextPing;
+ bool LastPingWasGood;
+ bool bursting;
+ unsigned int keylength;
+ std::string ModuleList;
+ std::map<std::string,std::string> CapKeys;
+ Module* Hook;
+
+ public:
+
+ /** Because most of the I/O gubbins are encapsulated within
+ * InspSocket, we just call the superclass constructor for
+ * most of the action, and append a few of our own values
+ * to it.
+ */
+ TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime, Module* HookMod = NULL);
+
+ TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime, std::string ServerName, Module* HookMod = NULL);
+
+ /** When a listening socket gives us a new file descriptor,
+ * we must associate it with a socket without creating a new
+ * connection. This constructor is used for this purpose.
+ */
+ TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, int newfd, char* ip, Module* HookMod = NULL);
+
+ ServerState GetLinkState();
+
+ Module* GetHook();
+
+ ~TreeSocket();
+
+ /** When an outbound connection finishes connecting, we receive
+ * this event, and must send our SERVER string to the other
+ * side. If the other side is happy, as outlined in the server
+ * to server docs on the inspircd.org site, the other side
+ * will then send back its own server string.
+ */
+ virtual bool OnConnected();
+
+ virtual void OnError(InspSocketError e);
+
+ virtual int OnDisconnect();
+
+ /** Recursively send the server tree with distances as hops.
+ * 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.
+ */
+ void SendServers(TreeServer* Current, TreeServer* s, int hops);
+
+ std::string MyCapabilities();
+
+ void SendCapabilities();
+
+ /* Check a comma seperated list for an item */
+ bool HasItem(const std::string &list, const std::string &item);
+
+ /* Isolate and return the elements that are different between two comma seperated lists */
+ std::string ListDifference(const std::string &one, const std::string &two);
+
+ bool Capab(const std::deque<std::string> &params);
+
+ /** This function forces this server to quit, removing this server
+ * and any users on it (and servers and users below that, etc etc).
+ * It's very slow and pretty clunky, but luckily unless your network
+ * is having a REAL bad hair day, this function shouldnt be called
+ * too many times a month ;-)
+ */
+ void SquitServer(std::string &from, TreeServer* Current);
+
+ /** This is a wrapper function for SquitServer above, which
+ * does some validation first and passes on the SQUIT to all
+ * other remaining servers.
+ */
+ void Squit(TreeServer* Current, const std::string &reason);
+
+ /** FMODE command - server mode with timestamp checks */
+ bool ForceMode(const std::string &source, std::deque<std::string> &params);
+
+ /** FTOPIC command */
+ bool ForceTopic(const std::string &source, std::deque<std::string> &params);
+
+ /** FJOIN, similar to TS6 SJOIN, but not quite. */
+ bool ForceJoin(const std::string &source, std::deque<std::string> &params);
+
+ /** NICK command */
+ bool IntroduceClient(const std::string &source, std::deque<std::string> &params);
+
+ /** 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.
+ */
+ void SendFJoins(TreeServer* Current, chanrec* c);
+
+ /** Send G, Q, Z and E lines */
+ void SendXLines(TreeServer* Current);
+
+ /** Send channel modes and topics */
+ void SendChannelModes(TreeServer* Current);
+
+ /** send all users and their oper state/modes */
+ void SendUsers(TreeServer* Current);
+
+ /** 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
+ * users require their servers to exist, and channels require their
+ * users to exist. You get the idea.
+ */
+ void DoBurst(TreeServer* s);
+
+ /** This function is called when we receive data from a remote
+ * server. We buffer the data in a std::string (it doesnt stay
+ * there for long), reading using InspSocket::Read() which can
+ * read up to 16 kilobytes in one operation.
+ *
+ * IF THIS FUNCTION RETURNS FALSE, THE CORE CLOSES AND DELETES
+ * THE SOCKET OBJECT FOR US.
+ */
+ virtual bool OnDataReady();
+
+ int WriteLine(std::string line);
+
+ /* Handle ERROR command */
+ bool Error(std::deque<std::string> &params);
+
+ /** remote MOTD. leet, huh? */
+ bool Motd(const std::string &prefix, std::deque<std::string> &params);
+
+ /** remote ADMIN. leet, huh? */
+ bool Admin(const std::string &prefix, std::deque<std::string> &params);
+
+ bool Stats(const std::string &prefix, std::deque<std::string> &params);
+
+ /** Because the core won't let users or even SERVERS set +o,
+ * we use the OPERTYPE command to do this.
+ */
+ bool OperType(const std::string &prefix, std::deque<std::string> &params);
+
+ /** Because Andy insists that services-compatible servers must
+ * implement SVSNICK and SVSJOIN, that's exactly what we do :p
+ */
+ bool ForceNick(const std::string &prefix, std::deque<std::string> &params);
+
+ /*
+ * Remote SQUIT (RSQUIT). Routing works similar to SVSNICK: Route it to the server that the target is connected to locally,
+ * then let that server do the dirty work (squit it!). Example:
+ * A -> B -> C -> D: oper on A squits D, A routes to B, B routes to C, C notices D connected locally, kills it. -- w00t
+ */
+ bool RemoteSquit(const std::string &prefix, std::deque<std::string> &params);
+
+ bool ServiceJoin(const std::string &prefix, std::deque<std::string> &params);
+
+ bool RemoteRehash(const std::string &prefix, std::deque<std::string> &params);
+
+ bool RemoteKill(const std::string &prefix, std::deque<std::string> &params);
+
+ bool LocalPong(const std::string &prefix, std::deque<std::string> &params);
+
+ bool MetaData(const std::string &prefix, std::deque<std::string> &params);
+
+ bool ServerVersion(const std::string &prefix, std::deque<std::string> &params);
+
+ bool ChangeHost(const std::string &prefix, std::deque<std::string> &params);
+
+ bool AddLine(const std::string &prefix, std::deque<std::string> &params);
+
+ bool ChangeName(const std::string &prefix, std::deque<std::string> &params);
+
+ bool Whois(const std::string &prefix, std::deque<std::string> &params);
+
+ bool Push(const std::string &prefix, std::deque<std::string> &params);
+
+ bool HandleSetTime(const std::string &prefix, std::deque<std::string> &params);
+
+ bool Time(const std::string &prefix, std::deque<std::string> &params);
+
+ bool LocalPing(const std::string &prefix, std::deque<std::string> &params);
+
+ bool RemoveStatus(const std::string &prefix, std::deque<std::string> &params);
+
+ bool RemoteServer(const std::string &prefix, std::deque<std::string> &params);
+
+ bool Outbound_Reply_Server(std::deque<std::string> &params);
+
+ bool Inbound_Server(std::deque<std::string> &params);
+
+ void Split(const std::string &line, std::deque<std::string> &n);
+
+ bool ProcessLine(std::string &line);
+
+ virtual std::string GetName();
+
+ virtual void OnTimeout();
+
+ virtual void OnClose();
+
+ virtual int OnIncomingConnection(int newsock, char* ip);
+};
+
+#endif
diff --git a/src/modules/m_spanningtree/utils.cpp b/src/modules/m_spanningtree/utils.cpp
new file mode 100644
index 000000000..25ea2190f
--- /dev/null
+++ b/src/modules/m_spanningtree/utils.cpp
@@ -0,0 +1,497 @@
+#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 "inspircd.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"
+
+/** 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;
+ iter = serverlist.find(ServerName.c_str());
+ if (iter != serverlist.end())
+ {
+ return iter->second;
+ }
+ else
+ {
+ return NULL;
+ }
+}
+
+/** 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->second->GetFd() < 0) && (exempt_list.find(i->second) == exempt_list.end()))
+ {
+ TreeServer* best = this->BestRouteTo(i->second->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> &params)
+{
+ 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> &params, 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> &params)
+{
+ 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> &params)
+{
+ 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> &params, 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> &params, 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::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 = "";
+
+ 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",IP.c_str(), portno);
+ 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("options","notimesync",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.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","hidden",j);
+ L.Timeout = Conf->ReadInteger("link","timeout",j,true);
+ L.Hook = Conf->ReadValue("link", "transport", 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 != "") && (L.RecvPass != "") && (L.SendPass != "") && (L.Name != "") && (L.Port))
+ {
+ ValidIPs.push_back(L.IPAddr);
+
+ if (Allow.length())
+ ValidIPs.push_back(Allow);
+
+ /* Needs resolving */
+ insp_inaddr binip;
+ if (insp_aton(L.IPAddr.c_str(), &binip) < 1)
+ {
+ try
+ {
+ bool cached;
+ SecurityIPResolver* sr = new SecurityIPResolver((Module*)this->Creator, this, ServerInstance, L.IPAddr, L, cached);
+ ServerInstance->AddResolver(sr, cached);
+ }
+ catch (ModuleException& e)
+ {
+ }
+ }
+
+ LinkBlocks.push_back(L);
+ }
+ else
+ {
+ if (L.IPAddr == "")
+ {
+ ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', IP address not defined!",L.Name.c_str());
+ }
+ else if (L.RecvPass == "")
+ {
+ ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', recvpass not defined!",L.Name.c_str());
+ }
+ else if (L.SendPass == "")
+ {
+ ServerInstance->Log(DEFAULT,"Invalid configuration for server '%s', sendpass not defined!",L.Name.c_str());
+ }
+ else if (L.Name == "")
+ {
+ 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;
+}
+