]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/channels.cpp
Added facility for servers to send KICK message (ew, i hate this crap)
[user/henk/code/inspircd.git] / src / channels.cpp
index 6d6c15f13e85977de72e4bae2778aa701047603a..9179c80027f30687ed4cd57df4e514e9c09d9395 100644 (file)
@@ -2,7 +2,7 @@
  *       | Inspire Internet Relay Chat Daemon |
  *       +------------------------------------+
  *
- *  Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
+ *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
  *                       E-mail:
  *                <brain@chatspike.net>
  *               <Craig@chatspike.net>
  * ---------------------------------------------------
  */
 
+using namespace std;
+
+#include "inspircd_config.h"
 #include "inspircd.h"
 #include "inspircd_io.h"
-#include "inspircd_util.h"
-#include "inspircd_config.h"
 #include <unistd.h>
-#include <fcntl.h>
 #include <sys/errno.h>
 #include <sys/ioctl.h>
 #include <sys/utsname.h>
-#include <cstdio>
 #include <time.h>
 #include <string>
 #ifdef GCC3
 #include <map>
 #include <sstream>
 #include <vector>
-#include <errno.h>
 #include <deque>
-#include <errno.h>
-#include <unistd.h>
-#include <sched.h>
-#include "connection.h"
 #include "users.h"
-#include "servers.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
 #define nspace std
 #endif
 
-using namespace std;
+extern ServerConfig* Config;
 
 extern int MODCOUNT;
 extern std::vector<Module*> modules;
 extern std::vector<ircd_module*> factory;
-
-extern int LogLevel;
-extern char ServerName[MAXBUF];
-extern char Network[MAXBUF];
-extern char ServerDesc[MAXBUF];
-extern char AdminName[MAXBUF];
-extern char AdminEmail[MAXBUF];
-extern char AdminNick[MAXBUF];
-extern char diepass[MAXBUF];
-extern char restartpass[MAXBUF];
-extern char motd[MAXBUF];
-extern char rules[MAXBUF];
-extern char list[MAXBUF];
-extern char PrefixQuit[MAXBUF];
-extern char DieValue[MAXBUF];
-
-extern int debugging;
 extern int WHOWAS_STALE;
 extern int WHOWAS_MAX;
-extern int DieDelay;
-extern time_t startup_time;
-extern int NetBufferSize;
-int MaxWhoResults;
-extern time_t nb_start;
-
-extern std::vector<int> fd_reap;
-extern std::vector<std::string> module_names;
-
-extern int boundPortCount;
-extern int portCount;
-extern int SERVERportCount;
-extern int ports[MAXSOCKS];
-extern int defaultRoute;
-
-extern std::vector<long> auth_cookies;
-extern std::stringstream config_f;
-
-extern serverrec* me[32];
-
-extern FILE *log_file;
-
 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()
 {
-       strcpy(name,"");
-       strcpy(custom_modes,"");
-       strcpy(topic,"");
-       strcpy(setby,"");
-       strcpy(key,"");
-       created = topicset = limit = users = 0;
-       topiclock = noexternal = inviteonly = moderated = secret = c_private = false;
+       *name = *custom_modes = *topic = *setby = *key = 0;
+       created = topicset = limit = binarymodes = 0;
        internal_userlist.clear();
 }
 
@@ -139,7 +94,7 @@ void chanrec::SetCustomMode(char mode,bool mode_on)
                std::string a = this->custom_modes;
                int pos = a.find(mode);
                a.erase(pos,1);
-               strncpy(this->custom_modes,a.c_str(),MAXMODES);
+               strlcpy(this->custom_modes,a.c_str(),MAXMODES);
 
                log(DEBUG,"Custom mode %c removed: modelist='%s'",mode,this->custom_modes);
                this->SetCustomModeParam(mode,"",false);
@@ -180,8 +135,7 @@ void chanrec::SetCustomModeParam(char mode,char* parameter,bool mode_on)
 
 bool chanrec::IsCustomModeSet(char mode)
 {
-       log(DEBUG,"Checking ISCustomModeSet: %c %s",mode,this->custom_modes);
-       return (strchr(this->custom_modes,mode) != 0);
+       return (strchr(this->custom_modes,mode));
 }
 
 std::string chanrec::GetModeParameter(char mode)
@@ -199,45 +153,431 @@ std::string chanrec::GetModeParameter(char mode)
        return "";
 }
 
-void chanrec::IncUserCounter()
+long chanrec::GetUserCounter()
 {
-       this->users++;
-       log(DEBUG,"Incremented channel user count for %s to %lu",name,(unsigned long)users);
+       return (this->internal_userlist.size());
 }
 
-void chanrec::DecUserCounter()
+void chanrec::AddUser(char* castuser)
 {
-       if (this->users > 0)
-               this->users--;
-       log(DEBUG,"Decremented channel user count for %s to %lu",name,(unsigned long)users);
+       internal_userlist[castuser] = castuser;
+       log(DEBUG,"Added casted user to channel's internal list");
 }
 
-long chanrec::GetUserCounter()
+void chanrec::DelUser(char* castuser)
+{
+       std::map<char*,char*>::iterator a = internal_userlist.find(castuser);
+       if (a != internal_userlist.end())
+       {
+               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::map<char*,char*> *chanrec::GetUsers()
 {
-       return (this->users);
+       return &internal_userlist;
 }
 
-void chanrec::AddUser(char* castuser)
+/* 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)
 {
-       internal_userlist.push_back(castuser);
-       log(DEBUG,"Added casted user to channel's internal list");
+        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;
+        strlcpy(cname,cn,CHANMAX);
+       log(DEBUG,"cname='%s' cn='%s'",cname,cn);
+
+        log(DEBUG,"add_channel: %s %s",user->nick,cname);
+
+        chanrec* Ptr = FindChan(cname);
+
+        if (!Ptr)
+        {
+                if (user->fd > -1)
+                {
+                        MOD_RESULT = 0;
+                        FOREACH_RESULT(I_OnUserPreJoin,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;
+                *chanlist[cname]->topic = 0;
+                strlcpy(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(I_OnUserPreJoin,OnUserPreJoin(user,Ptr,cname));
+                        if (MOD_RESULT == 1)
+                        {
+                                return NULL;
+                        }
+                        else if (MOD_RESULT == 0)
+                        {
+                                if (*Ptr->key)
+                                {
+                                        MOD_RESULT = 0;
+                                        FOREACH_RESULT(I_OnCheckKey,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(I_OnCheckInvite,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(I_OnCheckLimit,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(I_OnCheckBan,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;
 }
 
-void chanrec::DelUser(char* castuser)
+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(I_OnUserJoin,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;
+
+        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)
+                        {
+                               FOREACH_MOD(I_OnUserPart,OnUserPart(user,Ptr,reason));
+                                WriteChannel(Ptr,user,"PART %s :%s",Ptr->name, reason);
+                        }
+                        else
+                        {
+                               FOREACH_MOD(I_OnUserPart,OnUserPart(user,Ptr,""));
+                                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);
+                       FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(Ptr));
+                        delete Ptr;
+                        chanlist.erase(iter);
+                }
+        }
+
+        return NULL;
+}
+
+void server_kick_channel(userrec* user, chanrec* Ptr, char* reason, bool triggerevents)
 {
-       for (std::vector<char*>::iterator a = internal_userlist.begin(); a < internal_userlist.end(); a++)
+       if ((!user) || (!Ptr) || (!reason))
+       {
+               return;
+       }
+
+       if (!has_channel(user,Ptr))
+       {
+               /* Not on channel */
+               return;
+       }
+
+       if (triggerevents)
+       {
+               FOREACH_MOD(I_OnUserKick,OnUserKick(NULL,user,Ptr,reason));
+       }
+
+       for (unsigned int i =0; i < user->chans.size(); i++)
        {
-               if (*a == castuser)
+               if (user->chans[i].channel)
+               if (!strcasecmp(user->chans[i].channel->name,Ptr->name))
                {
-                       log(DEBUG,"Removed casted user from channel's internal list");
-                       internal_userlist.erase(a);
-                       return;
+                       WriteChannelWithServ(Ptr,"KICK %s %s :%s",Ptr->name, user->nick, reason);
+                       user->chans[i].uc_modes = 0;
+                       user->chans[i].channel = NULL;
+                       break;
                }
        }
-       log(DEBUG,"BUG BUG BUG! Attempt to remove an uncasted user from the internal list of %s!",name);
+
+       Ptr->DelUser((char*)user);
+
+        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);
+                        FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(Ptr));
+                        delete Ptr;
+                        chanlist.erase(iter);
+                }
+        }
 }
 
-std::vector<char*> *chanrec::GetUsers()
+void kick_channel(userrec *src,userrec *user, chanrec *Ptr, char* reason)
 {
-       return &internal_userlist;
+        if ((!src) || (!user) || (!Ptr) || (!reason))
+        {
+                log(DEFAULT,"*** BUG *** kick_channel was given an invalid parameter");
+                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(I_OnAccessCheck,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(I_OnUserPreKick,OnUserPreKick(src,user,Ptr,reason));
+                if (MOD_RESULT)
+                        return;
+        }
+
+        FOREACH_MOD(I_OnUserKick,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);
+                       FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(Ptr));
+                        delete Ptr;
+                        chanlist.erase(iter);
+                }
+        }
 }
+
+