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|
/* +------------------------------------+
* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
* InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
* E-mail:
* <brain@chatspike.net>
* <Craig@chatspike.net>
*
* Written by Craig Edwards, Craig McLure, and others.
* This program is free but copyrighted software; see
* the file COPYING for details.
*
* ---------------------------------------------------
*/
/* $ModDesc: Povides a spanning tree server link protocol */
#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"
/** 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;
/*
* 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 };
/* Foward declarations */
class TreeServer;
class TreeSocket;
class Link;
class ModuleSpanningTree;
class SpanningTreeUtilities;
/* This hash_map holds the hash equivalent of the server
* tree, used for rapid linear lookups.
*/
typedef nspace::hash_map<std::string, TreeServer*, nspace::hash<string>, irc::StrHashComp> server_hash;
typedef std::map<TreeServer*,TreeServer*> TreeServerList;
/** A group of modules that implement InspSocketHook
* that we can use to hook our server to server connections.
*/
typedef std::map<irc::string, Module*> hookmodules;
/** 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;
};
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);
};
/** Contains helper functions and variables for this module,
* and keeps them out of the global namespace
*/
class SpanningTreeUtilities
{
private:
/** Creator server
*/
InspIRCd* ServerInstance;
public:
/** Creator module
*/
ModuleSpanningTree* Creator;
/** Flatten links and /MAP for non-opers
*/
bool FlatLinks;
/** Hide U-Lined servers in /MAP and /LINKS
*/
bool HideULines;
/** Announce TS changes to channels on merge
*/
bool AnnounceTSChange;
/** Synchronize timestamps between servers
*/
bool EnableTimeSync;
/** Socket bindings for listening sockets
*/
std::vector<TreeSocket*> Bindings;
/** This variable represents the root of the server tree
*/
TreeServer *TreeRoot;
/** IPs allowed to link to us
*/
std::vector<std::string> ValidIPs;
/** Hash of currently connected servers by name
*/
server_hash serverlist;
/** Holds the data from the <link> tags in the conf
*/
std::vector<Link> LinkBlocks;
hookmodules hooks;
std::vector<std::string> hooknames;
/** Initialise utility class
*/
SpanningTreeUtilities(InspIRCd* Instance, ModuleSpanningTree* Creator);
/** Destroy class and free listeners etc
*/
~SpanningTreeUtilities();
/** Send a message from this server to one other local or remote
*/
bool DoOneToOne(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string target);
/** Send a message from this server to all but one other, local or remote
*/
bool DoOneToAllButSender(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string omit);
/** Send a message from this server to all but one other, local or remote
*/
bool DoOneToAllButSender(const char* prefix, const char* command, std::deque<std::string> ¶ms, std::string omit);
/** Send a message from this server to all others
*/
bool DoOneToMany(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms);
/** Send a message from this server to all others
*/
bool DoOneToMany(const char* prefix, const char* command, std::deque<std::string> ¶ms);
/** Send a message from this server to all others, without doing any processing on the command (e.g. send it as-is with colons and all)
*/
bool DoOneToAllButSenderRaw(const std::string &data, const std::string &omit, const std::string &prefix, const irc::string &command, std::deque<std::string> ¶ms);
/** Read the spanningtree module's tags from the config file
*/
void ReadConfiguration(bool rebind);
/** Add a server to the server list for GetListOfServersForChannel
*/
void AddThisServer(TreeServer* server, TreeServerList &list);
/** Compile a list of servers which contain members of channel c
*/
void GetListOfServersForChannel(chanrec* c, TreeServerList &list, char status, const CUList &exempt_list);
/** Find a server by name
*/
TreeServer* FindServer(const std::string &ServerName);
/** Find a route to a server by name
*/
TreeServer* BestRouteTo(const std::string &ServerName);
/** Find a server by glob mask
*/
TreeServer* FindServerMask(const std::string &ServerName);
/** Returns true if this is a server name we recognise
*/
bool IsServer(const std::string &ServerName);
/** Attempt to connect to the failover link of link x
*/
void DoFailOver(Link* x);
/** Find a link tag from a server name
*/
Link* FindLink(const std::string& name);
};
/** 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) : 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(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(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 QuitUsers(const std::string &reason)
{
ServerInstance->Log(DEBUG,"Removing all users from server %s",this->ServerName.c_str());
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;
ServerInstance->Log(DEBUG,"Kill %s fd=%d",a->nick,a->GetFd());
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 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 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* GetRoute()
{
return Route;
}
std::string GetName()
{
return ServerName.c_str();
}
std::string GetDesc()
{
return ServerDesc;
}
std::string GetVersion()
{
return VersionString;
}
void SetNextPingTime(time_t t)
{
this->NextPing = t;
LastPingWasGood = false;
}
time_t NextPingTime()
{
return NextPing;
}
bool AnsweredLastPing()
{
return LastPingWasGood;
}
void SetPingFlag()
{
LastPingWasGood = true;
}
int GetUserCount()
{
return UserCount;
}
void AddUserCount()
{
UserCount++;
}
void DelUserCount()
{
UserCount--;
}
int GetOperCount()
{
return OperCount;
}
TreeSocket* GetSocket()
{
return Socket;
}
TreeServer* GetParent()
{
return Parent;
}
void SetVersion(const std::string &Version)
{
VersionString = Version;
}
unsigned int ChildCount()
{
return Children.size();
}
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 AddChild(TreeServer* Child)
{
Children.push_back(Child);
}
bool 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 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()
{
/* We'd better tidy up after ourselves, eh? */
this->DelHashEntry();
}
};
/** 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);
}
/** Handle /RCONNECT
*/
class cmd_rconnect : public command_t
{
Module* Creator;
SpanningTreeUtilities* Utils;
public:
cmd_rconnect (InspIRCd* Instance, Module* Callback, SpanningTreeUtilities* Util) : command_t(Instance, "RCONNECT", 'o', 2), Creator(Callback), Utils(Util)
{
this->source = "m_spanningtree.so";
syntax = "<remote-server-mask> <servermask>";
}
CmdResult Handle (const char** parameters, int pcnt, userrec *user)
{
user->WriteServ("NOTICE %s :*** RCONNECT: Sending remote connect to \002%s\002 to connect server \002%s\002.",user->nick,parameters[0],parameters[1]);
/* Is this aimed at our server? */
if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameters[0]))
{
/* Yes, initiate the given connect */
ServerInstance->SNO->WriteToSnoMask('l',"Remote CONNECT from %s matching \002%s\002, connecting server \002%s\002",user->nick,parameters[0],parameters[1]);
const char* para[1];
para[0] = parameters[1];
std::string original_command = std::string("CONNECT ") + parameters[1];
Creator->OnPreCommand("CONNECT", para, 1, user, true, original_command);
return CMD_SUCCESS;
}
return CMD_FAILURE;
}
};
/** 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)
: InspSocket(SI, host, port, listening, maxtime), Utils(Util), Hook(HookMod)
{
myhost = host;
this->LinkState = LISTENER;
Instance->Log(DEBUG, "HOOK = %08x", Hook);
if (listening && Hook)
InspSocketHookRequest(this, (Module*)Utils->Creator, Hook).Send();
}
TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime, std::string ServerName, Module* HookMod = NULL)
: 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(SpanningTreeUtilities* Util, InspIRCd* SI, int newfd, char* ip, Module* HookMod = NULL)
: InspSocket(SI, newfd, ip), Utils(Util), Hook(HookMod)
{
this->LinkState = WAIT_AUTH_1;
Instance->Log(DEBUG, "HOOK = %08x", Hook);
if (Hook)
{
InspSocketHookRequest(this, (Module*)Utils->Creator, Hook).Send();
Instance->Timers->AddTimer(new HandshakeTimer(Instance, this, &(Utils->LinkBlocks[0]), this->Utils));
}
}
ServerState GetLinkState()
{
return this->LinkState;
}
Module* GetHook()
{
return this->Hook;
}
~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.
*/
virtual bool 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;
}
virtual void 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);
}
}
virtual int 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 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 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 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 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 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 Capab(const std::deque<std::string> ¶ms)
{
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());
this->Instance->Log(DEBUG,"Key='%s' Value='%s'",var.c_str(),value.c_str());
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 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 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 ForceMode(const std::string &source, std::deque<std::string> ¶ms)
{
/* 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)
{
Instance->Log(DEBUG,"Entering TS equality check");
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()))
{
Instance->Log(DEBUG,"Mode removal %d %d",adding, mh->GetNumParams(adding));
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);
Instance->Log(DEBUG,"BOUNCE BACK: %s",(to_bounce+params_to_bounce).c_str());
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++)
{
Instance->Log(DEBUG,"KEEP Item %d of %d: %s", q, params_to_keep.size(), params_to_keep[q].c_str());
modelist[n++] = params_to_keep[q].c_str();
}
}
if (smode)
{
Instance->Log(DEBUG,"Send mode");
this->Instance->SendMode(modelist, n, who);
}
else
{
Instance->Log(DEBUG,"Send mode client");
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);
Instance->Log(DEBUG,"FMODE bounced intelligently, our TS less than theirs and the other server is NOT a uline.");
}
else
{
Instance->Log(DEBUG,"Allow modes, TS lower for sender");
/* 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 ForceTopic(const std::string &source, std::deque<std::string> ¶ms)
{
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 ForceJoin(const std::string &source, std::deque<std::string> ¶ms)
{
/* 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;
param_list.push_back(channel);
/* Zap all the privilage modes on our side, if the channel exists here */
if (!created)
{
this->RemoveStatus(Instance->Config->ServerName, param_list);
chan->age = TS;
}
}
/* 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. */
Instance->Log(DEBUG,"Fake direction in FJOIN, user '%s'",who->nick);
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)
{
Instance->Log(DEBUG,"Our our channel newer than theirs, accepting their modes");
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 IntroduceClient(const std::string &source, std::deque<std::string> ¶ms)
{
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());
/* This used to have a pretty craq'y loop doing the same thing,
* now we just let the STL do the hard work (more efficiently)
*/
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);
const char* tempnick = params[1].c_str();
Instance->Log(DEBUG,"Introduce client %s!%s@%s",tempnick,params[4].c_str(),params[2].c_str());
user_hash::iterator iter = this->Instance->clientlist.find(tempnick);
if (iter != this->Instance->clientlist.end())
{
// nick collision
Instance->Log(DEBUG,"Nick collision on %s!%s@%s: %lu %lu",tempnick,params[4].c_str(),params[2].c_str(),(unsigned long)age,(unsigned long)iter->second->age);
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;
for (std::string::iterator v = params[5].begin(); v != params[5].end(); v++)
_new->modes[(*v)-65] = 1;
#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)
{
Instance->Log(DEBUG,"Found source server of %s",_new->nick);
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 SendFJoins(TreeServer* Current, chanrec* c)
{
std::string buffer;
Instance->Log(DEBUG,"Sending FJOINs to other server for %s",c->name);
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 SendXLines(TreeServer* Current)
{
char data[MAXBUF];
std::string buffer;
std::string n = this->Instance->Config->ServerName;
const char* sn = n.c_str();
int iterations = 0;
/* 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++, iterations++)
{
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++, iterations++)
{
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++, iterations++)
{
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++, iterations++)
{
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++, iterations++)
{
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++, iterations++)
{
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++, iterations++)
{
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++, iterations++)
{
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 SendChannelModes(TreeServer* Current)
{
char data[MAXBUF];
std::deque<std::string> list;
int iterations = 0;
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++, iterations++)
{
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 SendUsers(TreeServer* Current)
{
char data[MAXBUF];
std::deque<std::string> list;
std::string dataline;
int iterations = 0;
for (user_hash::iterator u = this->Instance->clientlist.begin(); u != this->Instance->clientlist.end(); u++, iterations++)
{
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 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.
*/
virtual bool 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 WriteLine(std::string line)
{
Instance->Log(DEBUG,"OUT: %s",line.c_str());
line.append("\r\n");
return this->Write(line);
}
/* Handle ERROR command */
bool Error(std::deque<std::string> ¶ms)
{
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 Motd(const std::string &prefix, std::deque<std::string> ¶ms)
{
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 Admin(const std::string &prefix, std::deque<std::string> ¶ms)
{
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 Stats(const std::string &prefix, std::deque<std::string> ¶ms)
{
/* 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 OperType(const std::string &prefix, std::deque<std::string> ¶ms)
{
if (params.size() != 1)
{
Instance->Log(DEBUG,"Received invalid oper type from %s",prefix.c_str());
return true;
}
std::string opertype = params[0];
userrec* u = this->Instance->FindNick(prefix);
if (u)
{
u->modes[UM_OPERATOR] = 1;
strlcpy(u->oper,opertype.c_str(),NICKMAX-1);
Utils->DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server);
}
return true;
}
/** 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> ¶ms)
{
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]);
/* This is not required as one is sent in OnUserPostNick below
*/
//Utils->DoOneToMany(u->nick,"NICK",par);
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 RemoteSquit(const std::string &prefix, std::deque<std::string> ¶ms)
{
/* 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->Log(DEBUG,"Splitting server %s",s->GetName().c_str());
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 ServiceJoin(const std::string &prefix, std::deque<std::string> ¶ms)
{
if (params.size() < 2)
return true;
userrec* u = this->Instance->FindNick(params[0]);
if (u)
{
chanrec::JoinUser(this->Instance, u, params[1].c_str(), false);
Utils->DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);
}
return true;
}
bool RemoteRehash(const std::string &prefix, std::deque<std::string> ¶ms)
{
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 from server \002"+prefix+"\002.");
this->Instance->RehashServer();
Utils->ReadConfiguration(false);
InitializeDisabledCommands(Instance->Config->DisabledCommands, Instance);
}
Utils->DoOneToAllButSender(prefix,"REHASH",params,prefix);
return true;
}
bool RemoteKill(const std::string &prefix, std::deque<std::string> ¶ms)
{
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 LocalPong(const std::string &prefix, std::deque<std::string> ¶ms)
{
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 MetaData(const std::string &prefix, std::deque<std::string> ¶ms)
{
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 ServerVersion(const std::string &prefix, std::deque<std::string> ¶ms)
{
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 ChangeHost(const std::string &prefix, std::deque<std::string> ¶ms)
{
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 AddLine(const std::string &prefix, std::deque<std::string> ¶ms)
{
if (params.size() < 6)
return true;
bool propogate = false;
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()));
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()));
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()));
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());
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->Log(DEBUG,"Applying lines...");
Instance->XLines->apply_lines(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
}
return true;
}
bool ChangeName(const std::string &prefix, std::deque<std::string> ¶ms)
{
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 Whois(const std::string &prefix, std::deque<std::string> ¶ms)
{
if (params.size() < 1)
return true;
Instance->Log(DEBUG,"In IDLE command");
userrec* u = this->Instance->FindNick(prefix);
if (u)
{
Instance->Log(DEBUG,"USER EXISTS: %s",u->nick);
// 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 Push(const std::string &prefix, std::deque<std::string> ¶ms)
{
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 HandleSetTime(const std::string &prefix, std::deque<std::string> ¶ms)
{
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)
{
Instance->Log(DEBUG, "Timestamp from %s is equal", prefix.c_str());
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 Time(const std::string &prefix, std::deque<std::string> ¶ms)
{
// :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 LocalPing(const std::string &prefix, std::deque<std::string> ¶ms)
{
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 RemoveStatus(const std::string &prefix, std::deque<std::string> ¶ms)
{
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())
{
Instance->Log(DEBUG,"Mode sequence = '%s'",modesequence.c_str());
irc::spacesepstream sep(modesequence);
std::string modeletters = sep.GetToken();
Instance->Log(DEBUG,"Mode letters = '%s'",modeletters.c_str());
while (!modeletters.empty())
{
char mletter = *(modeletters.begin());
modestack.Push(mletter,sep.GetToken());
Instance->Log(DEBUG,"Push letter = '%c'",mletter);
modeletters.erase(modeletters.begin());
Instance->Log(DEBUG,"Mode letters = '%s'",modeletters.c_str());
}
}
}
while (modestack.GetStackedLine(stackresult))
{
Instance->Log(DEBUG,"Stacked line size %d",stackresult.size());
stackresult.push_front(ConvToStr(c->age));
stackresult.push_front(c->name);
Utils->DoOneToMany(Instance->Config->ServerName, "FMODE", stackresult);
stackresult.erase(stackresult.begin() + 1);
Instance->Log(DEBUG,"Stacked items:");
for (size_t z = 0; z < stackresult.size(); z++)
{
y[z] = stackresult[z].c_str();
Instance->Log(DEBUG,"\tstackresult[%d]='%s'",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 RemoteServer(const std::string &prefix, std::deque<std::string> ¶ms)
{
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 Outbound_Reply_Server(std::deque<std::string> ¶ms)
{
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 Inbound_Server(std::deque<std::string> ¶ms)
{
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 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 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,"IN: %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 (us == them)
{
this->Instance->Log(DEBUG, "Timestamps are equal; pat yourself on the back");
}
else if (force || (us > them))
{
this->Instance->Log(DEBUG, "Remote server has lower TS (%d seconds)", them - us);
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->Instance->Log(DEBUG, "We have a higher timestamp (by %d seconds), not updating delta", us - them);
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(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
}
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(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
}
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(APPLY_ZLINES|APPLY_GLINES|APPLY_QLINES);
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
{
Instance->Log(DEBUG,"Command with unknown origin '%s'",prefix.c_str());
return true;
}
}
return Utils->DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
}
return true;
break;
}
return true;
}
virtual std::string GetName()
{
std::string sourceserv = this->myhost;
if (this->InboundServerName != "")
{
sourceserv = this->InboundServerName;
}
return sourceserv;
}
virtual void 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);
}
}
virtual void 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());
}
virtual int 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
* callback to OnLookupComplete or OnError when completed. Once it has completed we
* will have an IP address which we can then use to continue our connection.
*/
class ServernameResolver : public Resolver
{
private:
/** A copy of the Link tag info for what we're connecting to.
* We take a copy, rather than using a pointer, just in case the
* admin takes the tag away and rehashes while the domain is resolving.
*/
Link MyLink;
SpanningTreeUtilities* Utils;
public:
ServernameResolver(Module* me, SpanningTreeUtilities* Util, InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD, me), MyLink(x), Utils(Util)
{
/* Nothing in here, folks */
}
void OnLookupComplete(const std::string &result)
{
/* Initiate the connection, now that we have an IP to use.
* Passing a hostname directly to InspSocket causes it to
* just bail and set its FD to -1.
*/
TreeServer* CheckDupe = Utils->FindServer(MyLink.Name.c_str());
if (!CheckDupe) /* Check that nobody tried to connect it successfully while we were resolving */
{
if ((!MyLink.Hook.empty()) && (Utils->hooks.find(MyLink.Hook.c_str()) == Utils->hooks.end()))
return;
TreeSocket* newsocket = new TreeSocket(this->Utils, ServerInstance, result,MyLink.Port,false,MyLink.Timeout ? MyLink.Timeout : 10,MyLink.Name.c_str(),
MyLink.Hook.empty() ? NULL : Utils->hooks[MyLink.Hook.c_str()]);
if (newsocket->GetFd() > -1)
{
/* We're all OK */
}
else
{
/* Something barfed, show the opers */
ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002: %s.",MyLink.Name.c_str(),strerror(errno));
delete newsocket;
Utils->DoFailOver(&MyLink);
}
}
}
void OnError(ResolverError e, const std::string &errormessage)
{
/* Ooops! */
ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002: Unable to resolve hostname - %s",MyLink.Name.c_str(),errormessage.c_str());
Utils->DoFailOver(&MyLink);
}
};
/** 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) : Resolver(Instance, hostname, DNS_QUERY_FORWARD, me), MyLink(x), Utils(U)
{
}
void OnLookupComplete(const std::string &result)
{
ServerInstance->Log(DEBUG,"Security IP cache: Adding IP address '%s' for Link '%s'",result.c_str(),MyLink.Name.c_str());
Utils->ValidIPs.push_back(result);
}
void OnError(ResolverError e, const std::string &errormessage)
{
ServerInstance->Log(DEBUG,"Could not resolve IP associated with Link '%s': %s",MyLink.Name.c_str(),errormessage.c_str());
}
};
SpanningTreeUtilities::SpanningTreeUtilities(InspIRCd* Instance, ModuleSpanningTree* C) : ServerInstance(Instance), Creator(C)
{
Bindings.clear();
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);
ServerInstance->Log(DEBUG, "Found InspSocketHook interface: '%s' -> '%08x'", name.c_str(), *m);
}
}
this->ReadConfiguration(true);
}
SpanningTreeUtilities::~SpanningTreeUtilities()
{
for (unsigned int i = 0; i < Bindings.size(); i++)
{
ServerInstance->Log(DEBUG,"Freeing binding %d of %d",i, Bindings.size());
ServerInstance->SE->DelFd(Bindings[i]);
Bindings[i]->Close();
DELETE(Bindings[i]);
}
ServerInstance->Log(DEBUG,"Freeing connected servers...");
while (TreeRoot->ChildCount())
{
TreeServer* child_server = TreeRoot->GetChild(0);
ServerInstance->Log(DEBUG,"Freeing connected server %s", child_server->GetName().c_str());
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> ¶ms)
{
char pfx = 0;
TreeServer* omitroute = this->BestRouteTo(omit);
if ((command == "NOTICE") || (command == "PRIVMSG"))
{
if (params.size() >= 2)
{
/* Prefixes */
if ((*(params[0].c_str()) == '@') || (*(params[0].c_str()) == '%') || (*(params[0].c_str()) == '+'))
{
pfx = params[0][0];
params[0] = params[0].substr(1, params[0].length()-1);
}
if ((*(params[0].c_str()) != '#') && (*(params[0].c_str()) != '$'))
{
// special routing for private messages/notices
userrec* d = ServerInstance->FindNick(params[0]);
if (d)
{
std::deque<std::string> par;
par.push_back(params[0]);
par.push_back(":"+params[1]);
this->DoOneToOne(prefix,command.c_str(),par,d->server);
return true;
}
}
else if (*(params[0].c_str()) == '$')
{
std::deque<std::string> par;
par.push_back(params[0]);
par.push_back(":"+params[1]);
this->DoOneToAllButSender(prefix,command.c_str(),par,omitroute->GetName());
return true;
}
else
{
chanrec* c = ServerInstance->FindChan(params[0]);
userrec* u = ServerInstance->FindNick(prefix);
if (c && u)
{
CUList elist;
TreeServerList list;
FOREACH_MOD(I_OnBuildExemptList, OnBuildExemptList((command == "PRIVMSG" ? MSG_PRIVMSG : MSG_NOTICE), c, u, pfx, elist));
GetListOfServersForChannel(c,list,pfx,elist);
for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
{
TreeSocket* Sock = i->second->GetSocket();
if ((Sock) && (i->second->GetName() != omit) && (omitroute != i->second))
{
Sock->WriteLine(data);
}
}
return true;
}
}
}
}
unsigned int items =this->TreeRoot->ChildCount();
for (unsigned int x = 0; x < items; x++)
{
TreeServer* Route = this->TreeRoot->GetChild(x);
if ((Route) && (Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
{
TreeSocket* Sock = Route->GetSocket();
if (Sock)
Sock->WriteLine(data);
}
}
return true;
}
bool SpanningTreeUtilities::DoOneToAllButSender(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string omit)
{
TreeServer* omitroute = this->BestRouteTo(omit);
std::string FullLine = ":" + prefix + " " + command;
unsigned int words = params.size();
for (unsigned int x = 0; x < words; x++)
{
FullLine = FullLine + " " + params[x];
}
unsigned int items = this->TreeRoot->ChildCount();
for (unsigned int x = 0; x < items; x++)
{
TreeServer* Route = this->TreeRoot->GetChild(x);
// Send the line IF:
// The route has a socket (its a direct connection)
// The route isnt the one to be omitted
// The route isnt the path to the one to be omitted
if ((Route) && (Route->GetSocket()) && (Route->GetName() != omit) && (omitroute != Route))
{
TreeSocket* Sock = Route->GetSocket();
if (Sock)
Sock->WriteLine(FullLine);
}
}
return true;
}
bool SpanningTreeUtilities::DoOneToMany(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms)
{
std::string FullLine = ":" + prefix + " " + command;
unsigned int words = params.size();
for (unsigned int x = 0; x < words; x++)
{
FullLine = FullLine + " " + params[x];
}
unsigned int items = this->TreeRoot->ChildCount();
for (unsigned int x = 0; x < items; x++)
{
TreeServer* Route = this->TreeRoot->GetChild(x);
if (Route && Route->GetSocket())
{
TreeSocket* Sock = Route->GetSocket();
if (Sock)
Sock->WriteLine(FullLine);
}
}
return true;
}
bool SpanningTreeUtilities::DoOneToMany(const char* prefix, const char* command, std::deque<std::string> ¶ms)
{
std::string spfx = prefix;
std::string scmd = command;
return this->DoOneToMany(spfx, scmd, params);
}
bool SpanningTreeUtilities::DoOneToAllButSender(const char* prefix, const char* command, std::deque<std::string> ¶ms, std::string omit)
{
std::string spfx = prefix;
std::string scmd = command;
return this->DoOneToAllButSender(spfx, scmd, params, omit);
}
bool SpanningTreeUtilities::DoOneToOne(const std::string &prefix, const std::string &command, std::deque<std::string> ¶ms, std::string target)
{
TreeServer* Route = this->BestRouteTo(target);
if (Route)
{
std::string FullLine = ":" + prefix + " " + command;
unsigned int words = params.size();
for (unsigned int x = 0; x < words; x++)
{
FullLine = FullLine + " " + params[x];
}
if (Route && Route->GetSocket())
{
TreeSocket* Sock = Route->GetSocket();
if (Sock)
Sock->WriteLine(FullLine);
}
return true;
}
else
{
return false;
}
}
void SpanningTreeUtilities::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()))
{
ServerInstance->Log(DEBUG,"m_spanningtree: Binding server port %s:%d", IP.c_str(), portno);
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);
}
ServerInstance->Log(DEBUG,"Done with this binding");
}
}
}
}
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
{
SecurityIPResolver* sr = new SecurityIPResolver((Module*)this->Creator, this, ServerInstance, L.IPAddr, L);
ServerInstance->AddResolver(sr);
}
catch (ModuleException& e)
{
ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
}
}
LinkBlocks.push_back(L);
ServerInstance->Log(DEBUG,"m_spanningtree: Read server %s with host %s:%d",L.Name.c_str(),L.IPAddr.c_str(),L.Port);
}
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);
}
/** To create a timer which recurs every second, we inherit from InspTimer.
* InspTimer is only one-shot however, so at the end of each Tick() we simply
* insert another of ourselves into the pending queue :)
*/
class TimeSyncTimer : public InspTimer
{
private:
InspIRCd *Instance;
ModuleSpanningTree *Module;
public:
TimeSyncTimer(InspIRCd *Instance, ModuleSpanningTree *Mod);
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())
{
Instance->Log(DEBUG,"Handshake timer activated, sending SERVER and/or CAPAB");
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));
}
}
}
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)
: Module::Module(Me), max_local(0), max_global(0)
{
ServerInstance->UseInterface("InspSocketHook");
Utils = new SpanningTreeUtilities(Me, this);
command_rconnect = new cmd_rconnect(ServerInstance, this, Utils);
ServerInstance->AddCommand(command_rconnect);
if (Utils->EnableTimeSync)
{
SyncTimer = new TimeSyncTimer(ServerInstance, this);
ServerInstance->Timers->AddTimer(SyncTimer);
}
else
SyncTimer = NULL;
}
void ShowLinks(TreeServer* Current, userrec* user, int hops)
{
std::string Parent = Utils->TreeRoot->GetName();
if (Current->GetParent())
{
Parent = Current->GetParent()->GetName();
}
for (unsigned int q = 0; q < Current->ChildCount(); q++)
{
if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str())))
{
if (*user->oper)
{
ShowLinks(Current->GetChild(q),user,hops+1);
}
}
else
{
ShowLinks(Current->GetChild(q),user,hops+1);
}
}
/* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetName().c_str())) && (!*user->oper))
return;
user->WriteServ("364 %s %s %s :%d %s",user->nick,Current->GetName().c_str(),(Utils->FlatLinks && (!*user->oper)) ? ServerInstance->Config->ServerName : Parent.c_str(),(Utils->FlatLinks && (!*user->oper)) ? 0 : hops,Current->GetDesc().c_str());
}
int CountLocalServs()
{
return Utils->TreeRoot->ChildCount();
}
int CountServs()
{
return Utils->serverlist.size();
}
void HandleLinks(const char** parameters, int pcnt, userrec* user)
{
ShowLinks(Utils->TreeRoot,user,0);
user->WriteServ("365 %s * :End of /LINKS list.",user->nick);
return;
}
void HandleLusers(const char** parameters, int pcnt, userrec* user)
{
unsigned int n_users = ServerInstance->UserCount();
/* Only update these when someone wants to see them, more efficient */
if ((unsigned int)ServerInstance->LocalUserCount() > max_local)
max_local = ServerInstance->LocalUserCount();
if (n_users > max_global)
max_global = n_users;
unsigned int ulined_count = 0;
unsigned int ulined_local_count = 0;
/* If ulined are hidden and we're not an oper, count the number of ulined servers hidden,
* locally and globally (locally means directly connected to us)
*/
if ((Utils->HideULines) && (!*user->oper))
{
for (server_hash::iterator q = Utils->serverlist.begin(); q != Utils->serverlist.end(); q++)
{
if (ServerInstance->ULine(q->second->GetName().c_str()))
{
ulined_count++;
if (q->second->GetParent() == Utils->TreeRoot)
ulined_local_count++;
}
}
}
user->WriteServ("251 %s :There are %d users and %d invisible on %d servers",user->nick,n_users-ServerInstance->InvisibleUserCount(),ServerInstance->InvisibleUserCount(),ulined_count ? this->CountServs() - ulined_count : this->CountServs());
if (ServerInstance->OperCount())
user->WriteServ("252 %s %d :operator(s) online",user->nick,ServerInstance->OperCount());
if (ServerInstance->UnregisteredUserCount())
user->WriteServ("253 %s %d :unknown connections",user->nick,ServerInstance->UnregisteredUserCount());
if (ServerInstance->ChannelCount())
user->WriteServ("254 %s %d :channels formed",user->nick,ServerInstance->ChannelCount());
user->WriteServ("254 %s :I have %d clients and %d servers",user->nick,ServerInstance->LocalUserCount(),ulined_local_count ? this->CountLocalServs() - ulined_local_count : this->CountLocalServs());
user->WriteServ("265 %s :Current Local Users: %d Max: %d",user->nick,ServerInstance->LocalUserCount(),max_local);
user->WriteServ("266 %s :Current Global Users: %d Max: %d",user->nick,n_users,max_global);
return;
}
// WARNING: NOT THREAD SAFE - DONT GET ANY SMART IDEAS.
void ShowMap(TreeServer* Current, userrec* user, int depth, char matrix[128][80], float &totusers, float &totservers)
{
if (line < 128)
{
for (int t = 0; t < depth; t++)
{
matrix[line][t] = ' ';
}
// For Aligning, we need to work out exactly how deep this thing is, and produce
// a 'Spacer' String to compensate.
char spacer[40];
memset(spacer,' ',40);
if ((40 - Current->GetName().length() - depth) > 1) {
spacer[40 - Current->GetName().length() - depth] = '\0';
}
else
{
spacer[5] = '\0';
}
float percent;
char text[80];
if (ServerInstance->clientlist.size() == 0) {
// If there are no users, WHO THE HELL DID THE /MAP?!?!?!
percent = 0;
}
else
{
percent = ((float)Current->GetUserCount() / (float)ServerInstance->clientlist.size()) * 100;
}
snprintf(text, 80, "%s %s%5d [%5.2f%%]", Current->GetName().c_str(), spacer, Current->GetUserCount(), percent);
totusers += Current->GetUserCount();
totservers++;
strlcpy(&matrix[line][depth],text,80);
line++;
for (unsigned int q = 0; q < Current->ChildCount(); q++)
{
if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str())))
{
if (*user->oper)
{
ShowMap(Current->GetChild(q),user,(Utils->FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
}
}
else
{
ShowMap(Current->GetChild(q),user,(Utils->FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
}
}
}
}
int HandleMotd(const char** parameters, int pcnt, userrec* user)
{
if (pcnt > 0)
{
/* Remote MOTD, the server is within the 1st parameter */
std::deque<std::string> params;
params.push_back(parameters[0]);
/* Send it out remotely, generate no reply yet */
TreeServer* s = Utils->FindServerMask(parameters[0]);
if (s)
{
Utils->DoOneToOne(user->nick, "MOTD", params, s->GetName());
}
else
{
user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
}
return 1;
}
return 0;
}
int HandleAdmin(const char** parameters, int pcnt, userrec* user)
{
if (pcnt > 0)
{
/* Remote ADMIN, the server is within the 1st parameter */
std::deque<std::string> params;
params.push_back(parameters[0]);
/* Send it out remotely, generate no reply yet */
TreeServer* s = Utils->FindServerMask(parameters[0]);
if (s)
{
Utils->DoOneToOne(user->nick, "ADMIN", params, s->GetName());
}
else
{
user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
}
return 1;
}
return 0;
}
int HandleStats(const char** parameters, int pcnt, userrec* user)
{
if (pcnt > 1)
{
/* Remote STATS, the server is within the 2nd parameter */
std::deque<std::string> params;
params.push_back(parameters[0]);
params.push_back(parameters[1]);
/* Send it out remotely, generate no reply yet */
TreeServer* s = Utils->FindServerMask(parameters[1]);
if (s)
{
params[1] = s->GetName();
Utils->DoOneToOne(user->nick, "STATS", params, s->GetName());
}
else
{
user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
}
return 1;
}
return 0;
}
// Ok, prepare to be confused.
// After much mulling over how to approach this, it struck me that
// the 'usual' way of doing a /MAP isnt the best way. Instead of
// keeping track of a ton of ascii characters, and line by line
// under recursion working out where to place them using multiplications
// and divisons, we instead render the map onto a backplane of characters
// (a character matrix), then draw the branches as a series of "L" shapes
// from the nodes. This is not only friendlier on CPU it uses less stack.
void HandleMap(const char** parameters, int pcnt, userrec* user)
{
// This array represents a virtual screen which we will
// "scratch" draw to, as the console device of an irc
// client does not provide for a proper terminal.
float totusers = 0;
float totservers = 0;
char matrix[128][80];
for (unsigned int t = 0; t < 128; t++)
{
matrix[t][0] = '\0';
}
line = 0;
// The only recursive bit is called here.
ShowMap(Utils->TreeRoot,user,0,matrix,totusers,totservers);
// Process each line one by one. The algorithm has a limit of
// 128 servers (which is far more than a spanning tree should have
// anyway, so we're ok). This limit can be raised simply by making
// the character matrix deeper, 128 rows taking 10k of memory.
for (int l = 1; l < line; l++)
{
// scan across the line looking for the start of the
// servername (the recursive part of the algorithm has placed
// the servers at indented positions depending on what they
// are related to)
int first_nonspace = 0;
while (matrix[l][first_nonspace] == ' ')
{
first_nonspace++;
}
first_nonspace--;
// Draw the `- (corner) section: this may be overwritten by
// another L shape passing along the same vertical pane, becoming
// a |- (branch) section instead.
matrix[l][first_nonspace] = '-';
matrix[l][first_nonspace-1] = '`';
int l2 = l - 1;
// Draw upwards until we hit the parent server, causing possibly
// other corners (`-) to become branches (|-)
while ((matrix[l2][first_nonspace-1] == ' ') || (matrix[l2][first_nonspace-1] == '`'))
{
matrix[l2][first_nonspace-1] = '|';
l2--;
}
}
// dump the whole lot to the user. This is the easy bit, honest.
for (int t = 0; t < line; t++)
{
user->WriteServ("006 %s :%s",user->nick,&matrix[t][0]);
}
float avg_users = totusers / totservers;
user->WriteServ("270 %s :%.0f server%s and %.0f user%s, average %.2f users per server",user->nick,totservers,(totservers > 1 ? "s" : ""),totusers,(totusers > 1 ? "s" : ""),avg_users);
user->WriteServ("007 %s :End of /MAP",user->nick);
return;
}
int HandleSquit(const char** parameters, int pcnt, userrec* user)
{
TreeServer* s = Utils->FindServerMask(parameters[0]);
if (s)
{
if (s == Utils->TreeRoot)
{
user->WriteServ("NOTICE %s :*** SQUIT: Foolish mortal, you cannot make a server SQUIT itself! (%s matches local server name)",user->nick,parameters[0]);
return 1;
}
TreeSocket* sock = s->GetSocket();
if (sock)
{
ServerInstance->Log(DEBUG,"Splitting server %s",s->GetName().c_str());
ServerInstance->SNO->WriteToSnoMask('l',"SQUIT: Server \002%s\002 removed from network by %s",parameters[0],user->nick);
sock->Squit(s,std::string("Server quit by ") + user->GetFullRealHost());
ServerInstance->SE->DelFd(sock);
sock->Close();
delete sock;
}
else
{
/* route it */
std::deque<std::string> params;
params.push_back(parameters[0]);
params.push_back(std::string(":Server quit by ") + user->GetFullRealHost());
Utils->DoOneToOne(user->nick, "RSQUIT", params, parameters[0]);
}
}
else
{
user->WriteServ("NOTICE %s :*** SQUIT: The server \002%s\002 does not exist on the network.",user->nick,parameters[0]);
}
return 1;
}
int HandleTime(const char** parameters, int pcnt, userrec* user)
{
if ((IS_LOCAL(user)) && (pcnt))
{
TreeServer* found = Utils->FindServerMask(parameters[0]);
if (found)
{
// we dont' override for local server
if (found == Utils->TreeRoot)
return 0;
std::deque<std::string> params;
params.push_back(found->GetName());
params.push_back(user->nick);
Utils->DoOneToOne(ServerInstance->Config->ServerName,"TIME",params,found->GetName());
}
else
{
user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
}
}
return 1;
}
int HandleRemoteWhois(const char** parameters, int pcnt, userrec* user)
{
if ((IS_LOCAL(user)) && (pcnt > 1))
{
userrec* remote = ServerInstance->FindNick(parameters[1]);
if ((remote) && (remote->GetFd() < 0))
{
std::deque<std::string> params;
params.push_back(parameters[1]);
Utils->DoOneToOne(user->nick,"IDLE",params,remote->server);
return 1;
}
else if (!remote)
{
user->WriteServ("401 %s %s :No such nick/channel",user->nick, parameters[1]);
user->WriteServ("318 %s %s :End of /WHOIS list.",user->nick, parameters[1]);
return 1;
}
}
return 0;
}
void DoPingChecks(time_t curtime)
{
for (unsigned int j = 0; j < Utils->TreeRoot->ChildCount(); j++)
{
TreeServer* serv = Utils->TreeRoot->GetChild(j);
TreeSocket* sock = serv->GetSocket();
if (sock)
{
if (curtime >= serv->NextPingTime())
{
if (serv->AnsweredLastPing())
{
sock->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" PING "+serv->GetName());
serv->SetNextPingTime(curtime + 60);
}
else
{
// they didnt answer, boot them
ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 pinged out",serv->GetName().c_str());
sock->Squit(serv,"Ping timeout");
ServerInstance->SE->DelFd(sock);
sock->Close();
delete sock;
return;
}
}
}
}
}
void ConnectServer(Link* x)
{
insp_inaddr binip;
/* Do we already have an IP? If so, no need to resolve it. */
if (insp_aton(x->IPAddr.c_str(), &binip) > 0)
{
/* Gave a hook, but it wasnt one we know */
if ((!x->Hook.empty()) && (Utils->hooks.find(x->Hook.c_str()) == Utils->hooks.end()))
return;
TreeSocket* newsocket = new TreeSocket(Utils, ServerInstance, x->IPAddr,x->Port,false,x->Timeout ? x->Timeout : 10,x->Name.c_str(), x->Hook.empty() ? NULL : Utils->hooks[x->Hook.c_str()]);
if (newsocket->GetFd() > -1)
{
/* Handled automatically on success */
}
else
{
ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
delete newsocket;
Utils->DoFailOver(x);
}
}
else
{
try
{
ServernameResolver* snr = new ServernameResolver((Module*)this, Utils, ServerInstance,x->IPAddr, *x);
ServerInstance->AddResolver(snr);
}
catch (ModuleException& e)
{
ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
Utils->DoFailOver(x);
}
}
}
void AutoConnectServers(time_t curtime)
{
for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
{
if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
{
ServerInstance->Log(DEBUG,"Auto-Connecting %s",x->Name.c_str());
x->NextConnectTime = curtime + x->AutoConnect;
TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
if (x->FailOver.length())
{
TreeServer* CheckFailOver = Utils->FindServer(x->FailOver.c_str());
if (CheckFailOver)
{
/* The failover for this server is currently a member of the network.
* The failover probably succeeded, where the main link did not.
* Don't try the main link until the failover is gone again.
*/
continue;
}
}
if (!CheckDupe)
{
// an autoconnected server is not connected. Check if its time to connect it
ServerInstance->SNO->WriteToSnoMask('l',"AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
this->ConnectServer(&(*x));
}
}
}
}
int HandleVersion(const char** parameters, int pcnt, userrec* user)
{
// we've already checked if pcnt > 0, so this is safe
TreeServer* found = Utils->FindServerMask(parameters[0]);
if (found)
{
std::string Version = found->GetVersion();
user->WriteServ("351 %s :%s",user->nick,Version.c_str());
if (found == Utils->TreeRoot)
{
ServerInstance->Config->Send005(user);
}
}
else
{
user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
}
return 1;
}
int HandleConnect(const char** parameters, int pcnt, userrec* user)
{
for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
{
if (ServerInstance->MatchText(x->Name.c_str(),parameters[0]))
{
TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
if (!CheckDupe)
{
user->WriteServ("NOTICE %s :*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",user->nick,x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
ConnectServer(&(*x));
return 1;
}
else
{
user->WriteServ("NOTICE %s :*** CONNECT: Server \002%s\002 already exists on the network and is connected via \002%s\002",user->nick,x->Name.c_str(),CheckDupe->GetParent()->GetName().c_str());
return 1;
}
}
}
user->WriteServ("NOTICE %s :*** CONNECT: No server matching \002%s\002 could be found in the config file.",user->nick,parameters[0]);
return 1;
}
void BroadcastTimeSync()
{
std::deque<std::string> params;
params.push_back(ConvToStr(ServerInstance->Time(true)));
Utils->DoOneToMany(Utils->TreeRoot->GetName(), "TIMESET", params);
}
virtual int OnStats(char statschar, userrec* user, string_list &results)
{
if ((statschar == 'c') || (statschar == 'n'))
{
for (unsigned int i = 0; i < Utils->LinkBlocks.size(); i++)
{
results.push_back(std::string(ServerInstance->Config->ServerName)+" 213 "+user->nick+" "+statschar+" *@"+(Utils->LinkBlocks[i].HiddenFromStats ? "<hidden>" : Utils->LinkBlocks[i].IPAddr)+" * "+Utils->LinkBlocks[i].Name.c_str()+" "+ConvToStr(Utils->LinkBlocks[i].Port)+" "+(Utils->LinkBlocks[i].Hook.empty() ? "plaintext" : Utils->LinkBlocks[i].Hook)+" "+(Utils->LinkBlocks[i].AutoConnect ? 'a' : '-')+'s');
if (statschar == 'c')
results.push_back(std::string(ServerInstance->Config->ServerName)+" 244 "+user->nick+" H * * "+Utils->LinkBlocks[i].Name.c_str());
}
results.push_back(std::string(ServerInstance->Config->ServerName)+" 219 "+user->nick+" "+statschar+" :End of /STATS report");
ServerInstance->SNO->WriteToSnoMask('t',"Notice: %s '%c' requested by %s (%s@%s)",(!strcmp(user->server,ServerInstance->Config->ServerName) ? "Stats" : "Remote stats"),statschar,user->nick,user->ident,user->host);
return 1;
}
return 0;
}
virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated, const std::string &original_line)
{
/* If the command doesnt appear to be valid, we dont want to mess with it. */
if (!validated)
return 0;
if (command == "CONNECT")
{
return this->HandleConnect(parameters,pcnt,user);
}
else if (command == "STATS")
{
return this->HandleStats(parameters,pcnt,user);
}
else if (command == "MOTD")
{
return this->HandleMotd(parameters,pcnt,user);
}
else if (command == "ADMIN")
{
return this->HandleAdmin(parameters,pcnt,user);
}
else if (command == "SQUIT")
{
return this->HandleSquit(parameters,pcnt,user);
}
else if (command == "MAP")
{
this->HandleMap(parameters,pcnt,user);
return 1;
}
else if ((command == "TIME") && (pcnt > 0))
{
return this->HandleTime(parameters,pcnt,user);
}
else if (command == "LUSERS")
{
this->HandleLusers(parameters,pcnt,user);
return 1;
}
else if (command == "LINKS")
{
this->HandleLinks(parameters,pcnt,user);
return 1;
}
else if (command == "WHOIS")
{
if (pcnt > 1)
{
// remote whois
return this->HandleRemoteWhois(parameters,pcnt,user);
}
}
else if ((command == "VERSION") && (pcnt > 0))
{
this->HandleVersion(parameters,pcnt,user);
return 1;
}
return 0;
}
virtual void OnPostCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, CmdResult result, const std::string &original_line)
{
if ((result == CMD_SUCCESS) && (ServerInstance->IsValidModuleCommand(command, pcnt, user)))
{
// this bit of code cleverly routes all module commands
// to all remote severs *automatically* so that modules
// can just handle commands locally, without having
// to have any special provision in place for remote
// commands and linking protocols.
std::deque<std::string> params;
params.clear();
for (int j = 0; j < pcnt; j++)
{
if (strchr(parameters[j],' '))
{
params.push_back(":" + std::string(parameters[j]));
}
else
{
params.push_back(std::string(parameters[j]));
}
}
ServerInstance->Log(DEBUG,"Globally route '%s'",command.c_str());
Utils->DoOneToMany(user->nick,command,params);
}
}
virtual void OnGetServerDescription(const std::string &servername,std::string &description)
{
TreeServer* s = Utils->FindServer(servername);
if (s)
{
description = s->GetDesc();
}
}
virtual void OnUserInvite(userrec* source,userrec* dest,chanrec* channel)
{
if (IS_LOCAL(source))
{
std::deque<std::string> params;
params.push_back(dest->nick);
params.push_back(channel->name);
Utils->DoOneToMany(source->nick,"INVITE",params);
}
}
virtual void OnPostLocalTopicChange(userrec* user, chanrec* chan, const std::string &topic)
{
std::deque<std::string> params;
params.push_back(chan->name);
params.push_back(":"+topic);
Utils->DoOneToMany(user->nick,"TOPIC",params);
}
virtual void OnWallops(userrec* user, const std::string &text)
{
if (IS_LOCAL(user))
{
std::deque<std::string> params;
params.push_back(":"+text);
Utils->DoOneToMany(user->nick,"WALLOPS",params);
}
}
virtual void OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
{
if (target_type == TYPE_USER)
{
userrec* d = (userrec*)dest;
if ((d->GetFd() < 0) && (IS_LOCAL(user)))
{
std::deque<std::string> params;
params.clear();
params.push_back(d->nick);
params.push_back(":"+text);
Utils->DoOneToOne(user->nick,"NOTICE",params,d->server);
}
}
else if (target_type == TYPE_CHANNEL)
{
if (IS_LOCAL(user))
{
chanrec *c = (chanrec*)dest;
if (c)
{
std::string cname = c->name;
if (status)
cname = status + cname;
TreeServerList list;
Utils->GetListOfServersForChannel(c,list,status,exempt_list);
for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
{
TreeSocket* Sock = i->second->GetSocket();
if (Sock)
Sock->WriteLine(":"+std::string(user->nick)+" NOTICE "+cname+" :"+text);
}
}
}
}
else if (target_type == TYPE_SERVER)
{
if (IS_LOCAL(user))
{
char* target = (char*)dest;
std::deque<std::string> par;
par.push_back(target);
par.push_back(":"+text);
Utils->DoOneToMany(user->nick,"NOTICE",par);
}
}
}
virtual void OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
{
if (target_type == TYPE_USER)
{
// route private messages which are targetted at clients only to the server
// which needs to receive them
userrec* d = (userrec*)dest;
if ((d->GetFd() < 0) && (IS_LOCAL(user)))
{
std::deque<std::string> params;
params.clear();
params.push_back(d->nick);
params.push_back(":"+text);
Utils->DoOneToOne(user->nick,"PRIVMSG",params,d->server);
}
}
else if (target_type == TYPE_CHANNEL)
{
if (IS_LOCAL(user))
{
chanrec *c = (chanrec*)dest;
if (c)
{
std::string cname = c->name;
if (status)
cname = status + cname;
TreeServerList list;
Utils->GetListOfServersForChannel(c,list,status,exempt_list);
for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
{
TreeSocket* Sock = i->second->GetSocket();
if (Sock)
Sock->WriteLine(":"+std::string(user->nick)+" PRIVMSG "+cname+" :"+text);
}
}
}
}
else if (target_type == TYPE_SERVER)
{
if (IS_LOCAL(user))
{
char* target = (char*)dest;
std::deque<std::string> par;
par.push_back(target);
par.push_back(":"+text);
Utils->DoOneToMany(user->nick,"PRIVMSG",par);
}
}
}
virtual void OnBackgroundTimer(time_t curtime)
{
AutoConnectServers(curtime);
DoPingChecks(curtime);
}
virtual void OnUserJoin(userrec* user, chanrec* channel)
{
// Only do this for local users
if (IS_LOCAL(user))
{
std::deque<std::string> params;
params.clear();
params.push_back(channel->name);
// set up their permissions and the channel TS with FJOIN.
// All users are FJOINed now, because a module may specify
// new joining permissions for the user.
params.clear();
params.push_back(channel->name);
params.push_back(ConvToStr(channel->age));
params.push_back(std::string(channel->GetAllPrefixChars(user))+","+std::string(user->nick));
Utils->DoOneToMany(ServerInstance->Config->ServerName,"FJOIN",params);
if (channel->GetUserCounter() == 1)
{
/* First user in, sync the modes for the channel */
params.pop_back();
/* This is safe, all inspircd servers default to +nt */
params.push_back("+nt");
Utils->DoOneToMany(ServerInstance->Config->ServerName,"FMODE",params);
}
}
}
virtual void OnChangeHost(userrec* user, const std::string &newhost)
{
// only occurs for local clients
if (user->registered != REG_ALL)
return;
std::deque<std::string> params;
params.push_back(newhost);
Utils->DoOneToMany(user->nick,"FHOST",params);
}
virtual void OnChangeName(userrec* user, const std::string &gecos)
{
// only occurs for local clients
if (user->registered != REG_ALL)
return;
std::deque<std::string> params;
params.push_back(gecos);
Utils->DoOneToMany(user->nick,"FNAME",params);
}
virtual void OnUserPart(userrec* user, chanrec* channel, const std::string &partmessage)
{
if (IS_LOCAL(user))
{
std::deque<std::string> params;
params.push_back(channel->name);
if (partmessage != "")
params.push_back(":"+partmessage);
Utils->DoOneToMany(user->nick,"PART",params);
}
}
virtual void OnUserConnect(userrec* user)
{
char agestr[MAXBUF];
if (IS_LOCAL(user))
{
std::deque<std::string> params;
snprintf(agestr,MAXBUF,"%lu",(unsigned long)user->age);
params.push_back(agestr);
params.push_back(user->nick);
params.push_back(user->host);
params.push_back(user->dhost);
params.push_back(user->ident);
params.push_back("+"+std::string(user->FormatModes()));
params.push_back(user->GetIPString());
params.push_back(":"+std::string(user->fullname));
Utils->DoOneToMany(ServerInstance->Config->ServerName,"NICK",params);
// User is Local, change needs to be reflected!
TreeServer* SourceServer = Utils->FindServer(user->server);
if (SourceServer)
{
SourceServer->AddUserCount();
}
}
}
virtual void OnUserQuit(userrec* user, const std::string &reason)
{
if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
{
std::deque<std::string> params;
params.push_back(":"+reason);
Utils->DoOneToMany(user->nick,"QUIT",params);
}
// Regardless, We need to modify the user Counts..
TreeServer* SourceServer = Utils->FindServer(user->server);
if (SourceServer)
{
SourceServer->DelUserCount();
}
}
virtual void OnUserPostNick(userrec* user, const std::string &oldnick)
{
if (IS_LOCAL(user))
{
std::deque<std::string> params;
params.push_back(user->nick);
Utils->DoOneToMany(oldnick,"NICK",params);
}
}
virtual void OnUserKick(userrec* source, userrec* user, chanrec* chan, const std::string &reason)
{
if ((source) && (IS_LOCAL(source)))
{
std::deque<std::string> params;
params.push_back(chan->name);
params.push_back(user->nick);
params.push_back(":"+reason);
Utils->DoOneToMany(source->nick,"KICK",params);
}
else if (!source)
{
std::deque<std::string> params;
params.push_back(chan->name);
params.push_back(user->nick);
params.push_back(":"+reason);
Utils->DoOneToMany(ServerInstance->Config->ServerName,"KICK",params);
}
}
virtual void OnRemoteKill(userrec* source, userrec* dest, const std::string &reason)
{
std::deque<std::string> params;
params.push_back(dest->nick);
params.push_back(":"+reason);
Utils->DoOneToMany(source->nick,"KILL",params);
}
virtual void OnRehash(const std::string ¶meter)
{
if (parameter != "")
{
std::deque<std::string> params;
params.push_back(parameter);
Utils->DoOneToMany(ServerInstance->Config->ServerName,"REHASH",params);
// check for self
if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameter))
{
ServerInstance->WriteOpers("*** Remote rehash initiated from server \002%s\002",ServerInstance->Config->ServerName);
ServerInstance->RehashServer();
}
}
Utils->ReadConfiguration(false);
}
// note: the protocol does not allow direct umode +o except
// via NICK with 8 params. sending OPERTYPE infers +o modechange
// locally.
virtual void OnOper(userrec* user, const std::string &opertype)
{
if (IS_LOCAL(user))
{
std::deque<std::string> params;
params.push_back(opertype);
Utils->DoOneToMany(user->nick,"OPERTYPE",params);
}
}
void OnLine(userrec* source, const std::string &host, bool adding, char linetype, long duration, const std::string &reason)
{
if (!source)
{
/* Server-set lines */
char data[MAXBUF];
snprintf(data,MAXBUF,"%c %s %s %lu %lu :%s", linetype, host.c_str(), ServerInstance->Config->ServerName, (unsigned long)ServerInstance->Time(false),
(unsigned long)duration, reason.c_str());
std::deque<std::string> params;
params.push_back(data);
Utils->DoOneToMany(ServerInstance->Config->ServerName, "ADDLINE", params);
}
else
{
if (IS_LOCAL(source))
{
char type[8];
snprintf(type,8,"%cLINE",linetype);
std::string stype = type;
if (adding)
{
char sduration[MAXBUF];
snprintf(sduration,MAXBUF,"%ld",duration);
std::deque<std::string> params;
params.push_back(host);
params.push_back(sduration);
params.push_back(":"+reason);
Utils->DoOneToMany(source->nick,stype,params);
}
else
{
std::deque<std::string> params;
params.push_back(host);
Utils->DoOneToMany(source->nick,stype,params);
}
}
}
}
virtual void OnAddGLine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
{
OnLine(source,hostmask,true,'G',duration,reason);
}
virtual void OnAddZLine(long duration, userrec* source, const std::string &reason, const std::string &ipmask)
{
OnLine(source,ipmask,true,'Z',duration,reason);
}
virtual void OnAddQLine(long duration, userrec* source, const std::string &reason, const std::string &nickmask)
{
OnLine(source,nickmask,true,'Q',duration,reason);
}
virtual void OnAddELine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
{
OnLine(source,hostmask,true,'E',duration,reason);
}
virtual void OnDelGLine(userrec* source, const std::string &hostmask)
{
OnLine(source,hostmask,false,'G',0,"");
}
virtual void OnDelZLine(userrec* source, const std::string &ipmask)
{
OnLine(source,ipmask,false,'Z',0,"");
}
virtual void OnDelQLine(userrec* source, const std::string &nickmask)
{
OnLine(source,nickmask,false,'Q',0,"");
}
virtual void OnDelELine(userrec* source, const std::string &hostmask)
{
OnLine(source,hostmask,false,'E',0,"");
}
virtual void OnMode(userrec* user, void* dest, int target_type, const std::string &text)
{
if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
{
if (target_type == TYPE_USER)
{
userrec* u = (userrec*)dest;
std::deque<std::string> params;
params.push_back(u->nick);
params.push_back(text);
Utils->DoOneToMany(user->nick,"MODE",params);
}
else
{
chanrec* c = (chanrec*)dest;
std::deque<std::string> params;
params.push_back(c->name);
params.push_back(text);
Utils->DoOneToMany(user->nick,"MODE",params);
}
}
}
virtual void OnSetAway(userrec* user)
{
if (IS_LOCAL(user))
{
std::deque<std::string> params;
params.push_back(":"+std::string(user->awaymsg));
Utils->DoOneToMany(user->nick,"AWAY",params);
}
}
virtual void OnCancelAway(userrec* user)
{
if (IS_LOCAL(user))
{
std::deque<std::string> params;
params.clear();
Utils->DoOneToMany(user->nick,"AWAY",params);
}
}
virtual void ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline)
{
TreeSocket* s = (TreeSocket*)opaque;
if (target)
{
if (target_type == TYPE_USER)
{
userrec* u = (userrec*)target;
s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+u->nick+" "+ConvToStr(u->age)+" "+modeline);
}
else
{
chanrec* c = (chanrec*)target;
s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+modeline);
}
}
}
virtual void ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata)
{
TreeSocket* s = (TreeSocket*)opaque;
if (target)
{
if (target_type == TYPE_USER)
{
userrec* u = (userrec*)target;
s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+u->nick+" "+extname+" :"+extdata);
}
else if (target_type == TYPE_CHANNEL)
{
chanrec* c = (chanrec*)target;
s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+c->name+" "+extname+" :"+extdata);
}
}
if (target_type == TYPE_OTHER)
{
s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA * "+extname+" :"+extdata);
}
}
virtual void OnEvent(Event* event)
{
std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
if (event->GetEventID() == "send_metadata")
{
if (params->size() < 3)
return;
(*params)[2] = ":" + (*params)[2];
Utils->DoOneToMany(ServerInstance->Config->ServerName,"METADATA",*params);
}
else if (event->GetEventID() == "send_topic")
{
if (params->size() < 2)
return;
(*params)[1] = ":" + (*params)[1];
params->insert(params->begin() + 1,ServerInstance->Config->ServerName);
params->insert(params->begin() + 1,ConvToStr(ServerInstance->Time(true)));
Utils->DoOneToMany(ServerInstance->Config->ServerName,"FTOPIC",*params);
}
else if (event->GetEventID() == "send_mode")
{
if (params->size() < 2)
return;
// Insert the TS value of the object, either userrec or chanrec
time_t ourTS = 0;
userrec* a = ServerInstance->FindNick((*params)[0]);
if (a)
{
ourTS = a->age;
}
else
{
chanrec* a = ServerInstance->FindChan((*params)[0]);
if (a)
{
ourTS = a->age;
}
}
params->insert(params->begin() + 1,ConvToStr(ourTS));
Utils->DoOneToMany(ServerInstance->Config->ServerName,"FMODE",*params);
}
else if (event->GetEventID() == "send_mode_explicit")
{
if (params->size() < 2)
return;
Utils->DoOneToMany(ServerInstance->Config->ServerName,"MODE",*params);
}
else if (event->GetEventID() == "send_opers")
{
if (params->size() < 1)
return;
(*params)[0] = ":" + (*params)[0];
Utils->DoOneToMany(ServerInstance->Config->ServerName,"OPERNOTICE",*params);
}
else if (event->GetEventID() == "send_modeset")
{
if (params->size() < 2)
return;
(*params)[1] = ":" + (*params)[1];
Utils->DoOneToMany(ServerInstance->Config->ServerName,"MODENOTICE",*params);
}
else if (event->GetEventID() == "send_snoset")
{
if (params->size() < 2)
return;
(*params)[1] = ":" + (*params)[1];
Utils->DoOneToMany(ServerInstance->Config->ServerName,"SNONOTICE",*params);
}
else if (event->GetEventID() == "send_push")
{
if (params->size() < 2)
return;
userrec *a = ServerInstance->FindNick((*params)[0]);
if (!a)
return;
(*params)[1] = ":" + (*params)[1];
Utils->DoOneToOne(ServerInstance->Config->ServerName, "PUSH", *params, a->server);
}
}
virtual ~ModuleSpanningTree()
{
ServerInstance->Log(DEBUG,"Performing unload of spanningtree!");
/* This will also free the listeners */
delete Utils;
if (SyncTimer)
ServerInstance->Timers->DelTimer(SyncTimer);
ServerInstance->DoneWithInterface("InspSocketHook");
}
virtual Version GetVersion()
{
return Version(1,1,0,2,VF_VENDOR,API_VERSION);
}
void Implements(char* List)
{
List[I_OnPreCommand] = List[I_OnGetServerDescription] = List[I_OnUserInvite] = List[I_OnPostLocalTopicChange] = 1;
List[I_OnWallops] = List[I_OnUserNotice] = List[I_OnUserMessage] = List[I_OnBackgroundTimer] = 1;
List[I_OnUserJoin] = List[I_OnChangeHost] = List[I_OnChangeName] = List[I_OnUserPart] = List[I_OnUserConnect] = 1;
List[I_OnUserQuit] = List[I_OnUserPostNick] = List[I_OnUserKick] = List[I_OnRemoteKill] = List[I_OnRehash] = 1;
List[I_OnOper] = List[I_OnAddGLine] = List[I_OnAddZLine] = List[I_OnAddQLine] = List[I_OnAddELine] = 1;
List[I_OnDelGLine] = List[I_OnDelZLine] = List[I_OnDelQLine] = List[I_OnDelELine] = List[I_ProtoSendMode] = List[I_OnMode] = 1;
List[I_OnStats] = List[I_ProtoSendMetaData] = List[I_OnEvent] = List[I_OnSetAway] = List[I_OnCancelAway] = List[I_OnPostCommand] = 1;
}
/* It is IMPORTANT that m_spanningtree is the last module in the chain
* so that any activity it sees is FINAL, e.g. we arent going to send out
* a NICK message before m_cloaking has finished putting the +x on the user,
* etc etc.
* Therefore, we return PRIORITY_LAST to make sure we end up at the END of
* the module call queue.
*/
Priority Prioritize()
{
return PRIORITY_LAST;
}
};
TimeSyncTimer::TimeSyncTimer(InspIRCd *Inst, ModuleSpanningTree *Mod) : InspTimer(43200, Inst->Time()), Instance(Inst), Module(Mod)
{
}
void TimeSyncTimer::Tick(time_t TIME)
{
Module->BroadcastTimeSync();
Module->SyncTimer = new TimeSyncTimer(Instance, Module);
Instance->Timers->AddTimer(Module->SyncTimer);
}
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;
}
class ModuleSpanningTreeFactory : public ModuleFactory
{
public:
ModuleSpanningTreeFactory()
{
}
~ModuleSpanningTreeFactory()
{
}
virtual Module * CreateModule(InspIRCd* Me)
{
return new ModuleSpanningTree(Me);
}
};
extern "C" void * init_module( void )
{
return new ModuleSpanningTreeFactory;
}
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