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|
/* +------------------------------------+
* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
* Inspire is copyright (C) 2002-2005 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.
*
* ---------------------------------------------------
*/
using namespace std;
#include "inspircd_config.h"
#include "inspircd.h"
#include "inspircd_io.h"
#include <unistd.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/utsname.h>
#include <time.h>
#include <string>
#ifdef GCC3
#include <ext/hash_map>
#else
#include <hash_map>
#endif
#include <map>
#include <sstream>
#include <vector>
#include <deque>
#include "users.h"
#include "ctables.h"
#include "globals.h"
#include "modules.h"
#include "dynamic.h"
#include "commands.h"
#include "wildcard.h"
#include "message.h"
#include "mode.h"
#include "xline.h"
#include "inspstring.h"
#include "helperfuncs.h"
#include "typedefs.h"
#ifdef GCC3
#define nspace __gnu_cxx
#else
#define nspace std
#endif
extern ServerConfig* Config;
extern int MODCOUNT;
extern std::vector<Module*> modules;
extern std::vector<ircd_module*> factory;
extern int WHOWAS_STALE;
extern int WHOWAS_MAX;
extern time_t TIME;
extern chan_hash chanlist;
using namespace std;
std::vector<ModeParameter> custom_mode_params;
chanrec* ForceChan(chanrec* Ptr,ucrec &a,userrec* user, int created);
chanrec::chanrec()
{
*name = *custom_modes = *topic = *setby = *key = 0;
created = topicset = limit = binarymodes = 0;
internal_userlist.clear();
}
void chanrec::SetCustomMode(char mode,bool mode_on)
{
if (mode_on) {
static char m[3];
m[0] = mode;
m[1] = '\0';
if (!strchr(this->custom_modes,mode))
{
strlcat(custom_modes,m,MAXMODES);
}
log(DEBUG,"Custom mode %c set",mode);
}
else {
std::string a = this->custom_modes;
int pos = a.find(mode);
a.erase(pos,1);
strncpy(this->custom_modes,a.c_str(),MAXMODES);
log(DEBUG,"Custom mode %c removed: modelist='%s'",mode,this->custom_modes);
this->SetCustomModeParam(mode,"",false);
}
}
void chanrec::SetCustomModeParam(char mode,char* parameter,bool mode_on)
{
log(DEBUG,"SetCustomModeParam called");
ModeParameter M;
M.mode = mode;
strlcpy(M.channel,this->name,CHANMAX);
strlcpy(M.parameter,parameter,MAXBUF);
if (mode_on)
{
log(DEBUG,"Custom mode parameter %c %s added",mode,parameter);
custom_mode_params.push_back(M);
}
else
{
if (custom_mode_params.size())
{
for (vector<ModeParameter>::iterator i = custom_mode_params.begin(); i < custom_mode_params.end(); i++)
{
if ((i->mode == mode) && (!strcasecmp(this->name,i->channel)))
{
log(DEBUG,"Custom mode parameter %c %s removed",mode,parameter);
custom_mode_params.erase(i);
return;
}
}
}
log(DEBUG,"*** BUG *** Attempt to remove non-existent mode parameter!");
}
}
bool chanrec::IsCustomModeSet(char mode)
{
return (strchr(this->custom_modes,mode));
}
std::string chanrec::GetModeParameter(char mode)
{
if (custom_mode_params.size())
{
for (vector<ModeParameter>::iterator i = custom_mode_params.begin(); i < custom_mode_params.end(); i++)
{
if ((i->mode == mode) && (!strcasecmp(this->name,i->channel)))
{
return i->parameter;
}
}
}
return "";
}
long chanrec::GetUserCounter()
{
return (this->internal_userlist.size());
}
void chanrec::AddUser(char* castuser)
{
internal_userlist.push_back(castuser);
log(DEBUG,"Added casted user to channel's internal list");
}
void chanrec::DelUser(char* castuser)
{
for (std::vector<char*>::iterator a = internal_userlist.begin(); a < internal_userlist.end(); a++)
{
if (*a == castuser)
{
log(DEBUG,"Removed casted user from channel's internal list");
internal_userlist.erase(a);
return;
}
}
log(DEBUG,"BUG BUG BUG! Attempt to remove an uncasted user from the internal list of %s!",name);
}
std::vector<char*> *chanrec::GetUsers()
{
return &internal_userlist;
}
/* add a channel to a user, creating the record for it if needed and linking
* it to the user record */
chanrec* add_channel(userrec *user, const char* cn, const char* key, bool override)
{
if ((!user) || (!cn))
{
log(DEFAULT,"*** BUG *** add_channel was given an invalid parameter");
return 0;
}
int created = 0;
char cname[MAXBUF];
int MOD_RESULT = 0;
strncpy(cname,cn,CHANMAX);
log(DEBUG,"add_channel: %s %s",user->nick,cname);
chanrec* Ptr = FindChan(cname);
if (!Ptr)
{
if (user->fd > -1)
{
MOD_RESULT = 0;
FOREACH_RESULT(OnUserPreJoin(user,NULL,cname));
if (MOD_RESULT == 1)
return NULL;
}
/* create a new one */
chanlist[cname] = new chanrec();
strlcpy(chanlist[cname]->name, cname,CHANMAX);
chanlist[cname]->binarymodes = CM_TOPICLOCK | CM_NOEXTERNAL;
chanlist[cname]->created = TIME;
strcpy(chanlist[cname]->topic, "");
strncpy(chanlist[cname]->setby, user->nick,NICKMAX);
chanlist[cname]->topicset = 0;
Ptr = chanlist[cname];
log(DEBUG,"add_channel: created: %s",cname);
/* set created to 2 to indicate user
* is the first in the channel
* and should be given ops */
created = 2;
}
else
{
/* Already on the channel */
if (has_channel(user,Ptr))
return NULL;
// remote users are allowed us to bypass channel modes
// and bans (used by servers)
if (user->fd > -1)
{
MOD_RESULT = 0;
FOREACH_RESULT(OnUserPreJoin(user,Ptr,cname));
if (MOD_RESULT == 1)
{
return NULL;
}
else
{
if (*Ptr->key)
{
MOD_RESULT = 0;
FOREACH_RESULT(OnCheckKey(user, Ptr, key ? key : ""));
if (!MOD_RESULT)
{
if (!key)
{
log(DEBUG,"add_channel: no key given in JOIN");
WriteServ(user->fd,"475 %s %s :Cannot join channel (Requires key)",user->nick, Ptr->name);
return NULL;
}
else
{
if (strcasecmp(key,Ptr->key))
{
log(DEBUG,"add_channel: bad key given in JOIN");
WriteServ(user->fd,"475 %s %s :Cannot join channel (Incorrect key)",user->nick, Ptr->name);
return NULL;
}
}
}
}
if (Ptr->binarymodes & CM_INVITEONLY)
{
MOD_RESULT = 0;
irc::string xname(Ptr->name);
FOREACH_RESULT(OnCheckInvite(user, Ptr));
if (!MOD_RESULT)
{
log(DEBUG,"add_channel: channel is +i");
if (user->IsInvited(xname))
{
/* user was invited to channel */
/* there may be an optional channel NOTICE here */
}
else
{
WriteServ(user->fd,"473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
return NULL;
}
}
user->RemoveInvite(xname);
}
if (Ptr->limit)
{
MOD_RESULT = 0;
FOREACH_RESULT(OnCheckLimit(user, Ptr));
if (!MOD_RESULT)
{
if (usercount(Ptr) >= Ptr->limit)
{
WriteServ(user->fd,"471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
return NULL;
}
}
}
if (Ptr->bans.size())
{
log(DEBUG,"add_channel: about to walk banlist");
MOD_RESULT = 0;
FOREACH_RESULT(OnCheckBan(user, Ptr));
if (!MOD_RESULT)
{
for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
{
if (match(user->GetFullHost(),i->data))
{
WriteServ(user->fd,"474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
return NULL;
}
}
}
}
}
}
else
{
log(DEBUG,"Overridden checks");
}
created = 1;
}
log(DEBUG,"Passed channel checks");
for (unsigned int index =0; index < user->chans.size(); index++)
{
if (user->chans[index].channel == NULL)
{
return ForceChan(Ptr,user->chans[index],user,created);
}
}
/* XXX: If the user is an oper here, we can just extend their user->chans vector by one
* and put the channel in here. Same for remote users which are not bound by
* the channel limits. Otherwise, nope, youre boned.
*/
if (user->fd < 0)
{
ucrec a;
chanrec* c = ForceChan(Ptr,a,user,created);
user->chans.push_back(a);
return c;
}
else if (strchr(user->modes,'o'))
{
/* Oper allows extension up to the OPERMAXCHANS value */
if (user->chans.size() < OPERMAXCHANS)
{
ucrec a;
chanrec* c = ForceChan(Ptr,a,user,created);
user->chans.push_back(a);
return c;
}
}
log(DEBUG,"add_channel: user channel max exceeded: %s %s",user->nick,cname);
WriteServ(user->fd,"405 %s %s :You are on too many channels",user->nick, cname);
return NULL;
}
chanrec* ForceChan(chanrec* Ptr,ucrec &a,userrec* user, int created)
{
if (created == 2)
{
/* first user in is given ops */
a.uc_modes = UCMODE_OP;
}
else
{
a.uc_modes = 0;
}
a.channel = Ptr;
Ptr->AddUser((char*)user);
WriteChannel(Ptr,user,"JOIN :%s",Ptr->name);
log(DEBUG,"Sent JOIN to client");
if (Ptr->topicset)
{
WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
WriteServ(user->fd,"333 %s %s %s %lu", user->nick, Ptr->name, Ptr->setby, (unsigned long)Ptr->topicset);
}
userlist(user,Ptr);
WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, Ptr->name);
FOREACH_MOD OnUserJoin(user,Ptr);
return Ptr;
}
/* remove a channel from a users record, and remove the record from memory
* if the channel has become empty */
chanrec* del_channel(userrec *user, const char* cname, const char* reason, bool local)
{
if ((!user) || (!cname))
{
log(DEFAULT,"*** BUG *** del_channel was given an invalid parameter");
return NULL;
}
chanrec* Ptr = FindChan(cname);
if (!Ptr)
return NULL;
FOREACH_MOD OnUserPart(user,Ptr);
log(DEBUG,"del_channel: removing: %s %s",user->nick,Ptr->name);
for (unsigned int i =0; i < user->chans.size(); i++)
{
/* zap it from the channel list of the user */
if (user->chans[i].channel == Ptr)
{
if (reason)
{
WriteChannel(Ptr,user,"PART %s :%s",Ptr->name, reason);
}
else
{
WriteChannel(Ptr,user,"PART :%s",Ptr->name);
}
user->chans[i].uc_modes = 0;
user->chans[i].channel = NULL;
log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
break;
}
}
Ptr->DelUser((char*)user);
/* if there are no users left on the channel */
if (!usercount(Ptr))
{
chan_hash::iterator iter = chanlist.find(Ptr->name);
log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
/* kill the record */
if (iter != chanlist.end())
{
log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
delete Ptr;
chanlist.erase(iter);
}
}
return NULL;
}
void kick_channel(userrec *src,userrec *user, chanrec *Ptr, char* reason)
{
if ((!src) || (!user) || (!Ptr) || (!reason))
{
log(DEFAULT,"*** BUG *** kick_channel was given an invalid parameter");
return;
}
if ((!Ptr) || (!user) || (!src))
{
return;
}
log(DEBUG,"kick_channel: removing: %s %s %s",user->nick,Ptr->name,src->nick);
if (!has_channel(user,Ptr))
{
WriteServ(src->fd,"441 %s %s %s :They are not on that channel",src->nick, user->nick, Ptr->name);
return;
}
int MOD_RESULT = 0;
FOREACH_RESULT(OnAccessCheck(src,user,Ptr,AC_KICK));
if ((MOD_RESULT == ACR_DENY) && (!is_uline(src->server)))
return;
if ((MOD_RESULT == ACR_DEFAULT) || (!is_uline(src->server)))
{
if ((cstatus(src,Ptr) < STATUS_HOP) || (cstatus(src,Ptr) < cstatus(user,Ptr)))
{
if (cstatus(src,Ptr) == STATUS_HOP)
{
WriteServ(src->fd,"482 %s %s :You must be a channel operator",src->nick, Ptr->name);
}
else
{
WriteServ(src->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",src->nick, Ptr->name);
}
return;
}
}
if (!is_uline(src->server))
{
MOD_RESULT = 0;
FOREACH_RESULT(OnUserPreKick(src,user,Ptr,reason));
if (MOD_RESULT)
return;
}
FOREACH_MOD OnUserKick(src,user,Ptr,reason);
for (unsigned int i =0; i < user->chans.size(); i++)
{
/* zap it from the channel list of the user */
if (user->chans[i].channel)
if (!strcasecmp(user->chans[i].channel->name,Ptr->name))
{
WriteChannel(Ptr,src,"KICK %s %s :%s",Ptr->name, user->nick, reason);
user->chans[i].uc_modes = 0;
user->chans[i].channel = NULL;
log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
break;
}
}
Ptr->DelUser((char*)user);
/* if there are no users left on the channel */
if (!usercount(Ptr))
{
chan_hash::iterator iter = chanlist.find(Ptr->name);
log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
/* kill the record */
if (iter != chanlist.end())
{
log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
delete Ptr;
chanlist.erase(iter);
}
}
}
|