X-Git-Url: https://arthur.barton.de/cgi-bin/gitweb.cgi?p=ngircd-alex.git;a=blobdiff_plain;f=src%2Fngircd%2Fchannel.c;h=c923404bff904382db95359a444ec6501129ec85;hp=25c56ce5703f1699e0d5c8fa855ba070a2b1f9e3;hb=0428a1c4eab6945b6e536287bfcb2372334dba34;hpb=b5ee4552c167e5e887c5d9960123c34bbdba7c4f diff --git a/src/ngircd/channel.c b/src/ngircd/channel.c index 25c56ce5..c923404b 100644 --- a/src/ngircd/channel.c +++ b/src/ngircd/channel.c @@ -1,98 +1,160 @@ /* * ngIRCd -- The Next Generation IRC Daemon - * Copyright (c)2001,2002 by Alexander Barton (alex@barton.de) + * Copyright (c)2001-2005 by Alexander Barton (alex@barton.de) * - * Dieses Programm ist freie Software. Sie koennen es unter den Bedingungen - * der GNU General Public License (GPL), wie von der Free Software Foundation - * herausgegeben, weitergeben und/oder modifizieren, entweder unter Version 2 - * der Lizenz oder (wenn Sie es wuenschen) jeder spaeteren Version. - * Naehere Informationen entnehmen Sie bitter der Datei COPYING. Eine Liste - * der an ngIRCd beteiligten Autoren finden Sie in der Datei AUTHORS. + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * Please read the file COPYING, README and AUTHORS for more information. * - * $Id: channel.c,v 1.8 2002/01/27 21:56:54 alex Exp $ - * - * channel.c: Management der Channels - * - * $Log: channel.c,v $ - * Revision 1.8 2002/01/27 21:56:54 alex - * - weitere Anpassungen an Chennals, v.a. ueber Server-Links. - * - * Revision 1.7 2002/01/27 17:14:33 alex - * - diverse Aenderungen fuer Channels ueber mehrere Server. - * - * Revision 1.6 2002/01/26 18:41:55 alex - * - CHANNEL- und CL2CHAN-Strukturen in Header verlegt, - * - einige neue Funktionen (Channel_GetChannel(), Channel_FirstMember(), ...) - * - * Revision 1.5 2002/01/21 00:12:29 alex - * - begonnen, Channels zu implementieren :-) - * - * Revision 1.4 2002/01/16 22:09:07 alex - * - neue Funktion Channel_Count(). - * - * Revision 1.3 2002/01/02 02:42:58 alex - * - Copyright-Texte aktualisiert. - * - * Revision 1.2 2001/12/31 02:18:51 alex - * - viele neue Befehle (WHOIS, ISON, OPER, DIE, RESTART), - * - neuen Header "defines.h" mit (fast) allen Konstanten. - * - Code Cleanups und viele "kleine" Aenderungen & Bugfixes. - * - * Revision 1.1 2001/12/14 08:13:43 alex - * - neues Modul begonnen :-) + * Channel management */ #define __channel_c__ -#include -#include "global.h" +#include "portab.h" -#include +static char UNUSED id[] = "$Id: channel.c,v 1.65 2008/02/05 16:31:35 fw Exp $"; + +#include "imp.h" #include #include #include +#include +#include +#include "defines.h" +#include "conn-func.h" #include "client.h" -#include "irc.h" + +#include "exp.h" +#include "channel.h" + +#include "imp.h" +#include "irc-write.h" +#include "resolve.h" +#include "conf.h" +#include "hash.h" +#include "lists.h" #include "log.h" #include "messages.h" -#include -#include "channel.h" +#include "exp.h" -LOCAL CHANNEL *My_Channels; -LOCAL CL2CHAN *My_Cl2Chan; +#define REMOVE_PART 0 +#define REMOVE_QUIT 1 +#define REMOVE_KICK 2 -LOCAL CHANNEL *New_Chan( CHAR *Name ); -LOCAL CL2CHAN *Get_Cl2Chan( CHANNEL *Chan, CLIENT *Client ); -LOCAL CL2CHAN *Add_Client( CHANNEL *Chan, CLIENT *Client ); -LOCAL BOOLEAN Remove_Client( CHANNEL *Chan, CLIENT *Client, CLIENT *Origin, CHAR *Reason, BOOLEAN ServerPART ); -LOCAL CL2CHAN *Get_First_Cl2Chan( CLIENT *Client, CHANNEL *Chan ); -LOCAL CL2CHAN *Get_Next_Cl2Chan( CL2CHAN *Start, CLIENT *Client, CHANNEL *Chan ); -LOCAL BOOLEAN Delete_Channel( CHANNEL *Chan ); +static CHANNEL *My_Channels; +static CL2CHAN *My_Cl2Chan; -GLOBAL VOID Channel_Init( VOID ) +static CL2CHAN *Get_Cl2Chan PARAMS(( CHANNEL *Chan, CLIENT *Client )); +static CL2CHAN *Add_Client PARAMS(( CHANNEL *Chan, CLIENT *Client )); +static bool Remove_Client PARAMS(( int Type, CHANNEL *Chan, CLIENT *Client, CLIENT *Origin, const char *Reason, bool InformServer )); +static CL2CHAN *Get_First_Cl2Chan PARAMS(( CLIENT *Client, CHANNEL *Chan )); +static CL2CHAN *Get_Next_Cl2Chan PARAMS(( CL2CHAN *Start, CLIENT *Client, CHANNEL *Chan )); +static bool Delete_Channel PARAMS(( CHANNEL *Chan )); + + +GLOBAL void +Channel_Init( void ) { My_Channels = NULL; My_Cl2Chan = NULL; } /* Channel_Init */ -GLOBAL VOID Channel_Exit( VOID ) +GLOBAL struct list_head * +Channel_GetListBans(CHANNEL *c) +{ + assert(c != NULL); + return &c->list_bans; +} + + +GLOBAL struct list_head * +Channel_GetListInvites(CHANNEL *c) +{ + assert(c != NULL); + return &c->list_invites; +} + + +GLOBAL void +Channel_InitPredefined( void ) +{ + /* Vordefinierte persistente Channels erzeugen */ + + CHANNEL *chan; + char *c; + unsigned int i; + + for( i = 0; i < Conf_Channel_Count; i++ ) + { + /* Ist ein Name konfiguriert? */ + if( ! Conf_Channel[i].name[0] ) continue; + + /* Gueltiger Channel-Name? */ + if( ! Channel_IsValidName( Conf_Channel[i].name )) + { + Log( LOG_ERR, "Can't create pre-defined channel: invalid name: \"%s\"!", Conf_Channel[i].name ); + array_free(&Conf_Channel[i].topic); + continue; + } + + /* Gibt es den Channel bereits? */ + chan = Channel_Search( Conf_Channel[i].name ); + if( chan ) + { + Log( LOG_INFO, "Can't create pre-defined channel \"%s\": name already in use.", Conf_Channel[i].name ); + array_free(&Conf_Channel[i].topic); + continue; + } + + /* Create channel */ + chan = Channel_Create(Conf_Channel[i].name); + if (chan) { + Channel_ModeAdd(chan, 'P'); + + if (array_start(&Conf_Channel[i].topic) != NULL) + Channel_SetTopic(chan, NULL, + array_start(&Conf_Channel[i].topic)); + array_free(&Conf_Channel[i].topic); + + c = Conf_Channel[i].modes; + while (*c) + Channel_ModeAdd(chan, *c++); + + Channel_SetKey(chan, Conf_Channel[i].key); + Channel_SetMaxUsers(chan, Conf_Channel[i].maxusers); + + Log(LOG_INFO, "Created pre-defined channel \"%s\".", + Conf_Channel[i].name ); + } + else Log(LOG_ERR, "Can't create pre-defined channel \"%s\"!", + Conf_Channel[i].name ); + } +} /* Channel_InitPredefined */ + + +GLOBAL void +Channel_Exit( void ) { CHANNEL *c, *c_next; CL2CHAN *cl2chan, *cl2chan_next; - + /* Channel-Strukturen freigeben */ c = My_Channels; while( c ) { c_next = c->next; + array_free(&c->topic); free( c ); c = c_next; } @@ -108,87 +170,139 @@ GLOBAL VOID Channel_Exit( VOID ) } /* Channel_Exit */ -GLOBAL BOOLEAN Channel_Join( CLIENT *Client, CHAR *Name ) +GLOBAL bool +Channel_Join( CLIENT *Client, char *Name ) { CHANNEL *chan; assert( Client != NULL ); assert( Name != NULL ); - /* Valider Channel-Name? */ - if(( Name[0] != '#' ) || ( strlen( Name ) >= CHANNEL_NAME_LEN )) - { + if( ! Channel_IsValidName( Name )) { IRC_WriteStrClient( Client, ERR_NOSUCHCHANNEL_MSG, Client_ID( Client ), Name ); - return FALSE; + return false; } - /* Channel suchen */ chan = Channel_Search( Name ); - if( chan ) - { + if( chan ) { /* Ist der Client bereits Mitglied? */ - if( Get_Cl2Chan( chan, Client )) return FALSE; + if( Get_Cl2Chan( chan, Client )) return false; } else { /* Gibt es noch nicht? Dann neu anlegen: */ - chan = New_Chan( Name ); - if( ! chan ) return FALSE; - - /* Verketten */ - chan->next = My_Channels; - My_Channels = chan; + chan = Channel_Create( Name ); + if (!chan) return false; } /* User dem Channel hinzufuegen */ - if( ! Add_Client( chan, Client )) return FALSE; - else return TRUE; + if( ! Add_Client( chan, Client )) return false; + else return true; } /* Channel_Join */ -GLOBAL BOOLEAN Channel_Part( CLIENT *Client, CLIENT *Origin, CHAR *Name, CHAR *Reason ) +/** + * Remove client from channel. + * This function lets a client lead a channel. First, the function checks + * if the channel exists and the client is a member of it and sends out + * appropriate error messages if not. The real work is done by the function + * Remove_Client(). + */ +GLOBAL bool +Channel_Part(CLIENT * Client, CLIENT * Origin, const char *Name, const char *Reason) +{ + CHANNEL *chan; + + assert(Client != NULL); + assert(Name != NULL); + assert(Reason != NULL); + + chan = Channel_Search(Name); + if (!chan) { + IRC_WriteStrClient(Client, ERR_NOSUCHCHANNEL_MSG, + Client_ID(Client), Name); + return false; + } + if (!Get_Cl2Chan(chan, Client)) { + IRC_WriteStrClient(Client, ERR_NOTONCHANNEL_MSG, + Client_ID(Client), Name); + return false; + } + + if (!Remove_Client(REMOVE_PART, chan, Client, Origin, Reason, true)) + return false; + else + return true; +} /* Channel_Part */ + + +GLOBAL void +Channel_Kick( CLIENT *Client, CLIENT *Origin, const char *Name, const char *Reason ) { CHANNEL *chan; assert( Client != NULL ); + assert( Origin != NULL ); assert( Name != NULL ); + assert( Reason != NULL ); - /* Channel suchen */ chan = Channel_Search( Name ); - if(( ! chan ) || ( ! Get_Cl2Chan( chan, Client ))) + if( ! chan ) { - IRC_WriteStrClient( Client, ERR_NOSUCHCHANNEL_MSG, Client_ID( Client ), Name ); - return FALSE; + IRC_WriteStrClient( Origin, ERR_NOSUCHCHANNEL_MSG, Client_ID( Origin ), Name ); + return; } - /* User aus Channel entfernen */ - if( ! Remove_Client( chan, Client, Origin, Reason, TRUE )) return FALSE; - else return TRUE; -} /* Channel_Part */ + if( ! Channel_IsMemberOf( chan, Origin )) + { + IRC_WriteStrClient( Origin, ERR_NOTONCHANNEL_MSG, Client_ID( Origin ), Name ); + return; + } + /* Is User Channel-Operator? */ + if( ! strchr( Channel_UserModes( chan, Origin ), 'o' )) + { + IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Name); + return; + } -GLOBAL VOID Channel_RemoveClient( CLIENT *Client, CHAR *Reason ) + /* Ist the kickED User member of channel? */ + if( ! Channel_IsMemberOf( chan, Client )) + { + IRC_WriteStrClient( Origin, ERR_USERNOTINCHANNEL_MSG, Client_ID( Origin ), Client_ID( Client ), Name ); + return; + } + + Remove_Client( REMOVE_KICK, chan, Client, Origin, Reason, true); +} /* Channel_Kick */ + + +GLOBAL void +Channel_Quit( CLIENT *Client, char *Reason ) { CHANNEL *c, *next_c; assert( Client != NULL ); + assert( Reason != NULL ); + + IRC_WriteStrRelatedPrefix( Client, Client, false, "QUIT :%s", Reason ); c = My_Channels; while( c ) { next_c = c->next; - Remove_Client( c, Client, Client_ThisServer( ), Reason, FALSE ); + Remove_Client( REMOVE_QUIT, c, Client, Client, Reason, false ); c = next_c; } -} /* Channel_RemoveClient */ +} /* Channel_Quit */ -GLOBAL INT Channel_Count( VOID ) +GLOBAL unsigned long +Channel_Count( void ) { CHANNEL *c; - INT count; + unsigned long count = 0; - count = 0; c = My_Channels; while( c ) { @@ -199,31 +313,128 @@ GLOBAL INT Channel_Count( VOID ) } /* Channel_Count */ -GLOBAL CHANNEL *Channel_Search( CHAR *Name ) +GLOBAL unsigned long +Channel_MemberCount( CHANNEL *Chan ) +{ + CL2CHAN *cl2chan; + unsigned long count = 0; + + assert( Chan != NULL ); + + cl2chan = My_Cl2Chan; + while( cl2chan ) + { + if( cl2chan->channel == Chan ) count++; + cl2chan = cl2chan->next; + } + return count; +} /* Channel_MemberCount */ + + +GLOBAL int +Channel_CountForUser( CLIENT *Client ) +{ + /* Count number of channels a user is member of. */ + + CL2CHAN *cl2chan; + int count = 0; + + assert( Client != NULL ); + + cl2chan = My_Cl2Chan; + while( cl2chan ) + { + if( cl2chan->client == Client ) count++; + cl2chan = cl2chan->next; + } + + return count; +} /* Channel_CountForUser */ + + + +GLOBAL const char * +Channel_Name( const CHANNEL *Chan ) +{ + assert( Chan != NULL ); + return Chan->name; +} /* Channel_Name */ + + +GLOBAL char * +Channel_Modes( CHANNEL *Chan ) +{ + assert( Chan != NULL ); + return Chan->modes; +} /* Channel_Modes */ + + +GLOBAL char * +Channel_Key( CHANNEL *Chan ) +{ + assert( Chan != NULL ); + return Chan->key; +} /* Channel_Key */ + + +GLOBAL unsigned long +Channel_MaxUsers( CHANNEL *Chan ) +{ + assert( Chan != NULL ); + return Chan->maxusers; +} /* Channel_MaxUsers */ + + +GLOBAL CHANNEL * +Channel_First( void ) +{ + return My_Channels; +} /* Channel_First */ + + +GLOBAL CHANNEL * +Channel_Next( CHANNEL *Chan ) +{ + assert( Chan != NULL ); + return Chan->next; +} /* Channel_Next */ + + +GLOBAL CHANNEL * +Channel_Search( const char *Name ) { /* Channel-Struktur suchen */ CHANNEL *c; + UINT32 search_hash; assert( Name != NULL ); + + search_hash = Hash( Name ); c = My_Channels; while( c ) { - if( strcasecmp( Name, c->name ) == 0 ) return c; + if( search_hash == c->hash ) + { + /* lt. Hash-Wert: Treffer! */ + if( strcasecmp( Name, c->name ) == 0 ) return c; + } c = c->next; } return NULL; } /* Channel_Search */ -GLOBAL CL2CHAN *Channel_FirstMember( CHANNEL *Chan ) +GLOBAL CL2CHAN * +Channel_FirstMember( CHANNEL *Chan ) { assert( Chan != NULL ); return Get_First_Cl2Chan( NULL, Chan ); -} /* Channel_IsMember */ +} /* Channel_FirstMember */ -GLOBAL CL2CHAN *Channel_NextMember( CHANNEL *Chan, CL2CHAN *Cl2Chan ) +GLOBAL CL2CHAN * +Channel_NextMember( CHANNEL *Chan, CL2CHAN *Cl2Chan ) { assert( Chan != NULL ); assert( Cl2Chan != NULL ); @@ -231,46 +442,363 @@ GLOBAL CL2CHAN *Channel_NextMember( CHANNEL *Chan, CL2CHAN *Cl2Chan ) } /* Channel_NextMember */ -GLOBAL CLIENT *Channel_GetClient( CL2CHAN *Cl2Chan ) +GLOBAL CL2CHAN * +Channel_FirstChannelOf( CLIENT *Client ) +{ + assert( Client != NULL ); + return Get_First_Cl2Chan( Client, NULL ); +} /* Channel_FirstChannelOf */ + + +GLOBAL CL2CHAN * +Channel_NextChannelOf( CLIENT *Client, CL2CHAN *Cl2Chan ) +{ + assert( Client != NULL ); + assert( Cl2Chan != NULL ); + return Get_Next_Cl2Chan( Cl2Chan->next, Client, NULL ); +} /* Channel_NextChannelOf */ + + +GLOBAL CLIENT * +Channel_GetClient( CL2CHAN *Cl2Chan ) { assert( Cl2Chan != NULL ); return Cl2Chan->client; } /* Channel_GetClient */ -GLOBAL CHANNEL *Channel_GetChannel( CL2CHAN *Cl2Chan ) +GLOBAL CHANNEL * +Channel_GetChannel( CL2CHAN *Cl2Chan ) { assert( Cl2Chan != NULL ); return Cl2Chan->channel; } /* Channel_GetChannel */ -LOCAL CHANNEL *New_Chan( CHAR *Name ) +GLOBAL bool +Channel_IsValidName( const char *Name ) +{ + assert( Name != NULL ); + + if (strchr("+#", Name[0]) == NULL) + return false; + if (strlen(Name) >= CHANNEL_NAME_LEN) + return false; + + return Name[strcspn(Name, " ,:\007")] == 0; +} /* Channel_IsValidName */ + + +GLOBAL bool +Channel_ModeAdd( CHANNEL *Chan, char Mode ) +{ + /* set Mode. + * If the channel already had this mode, return false. + * If the channel mode was newly set return true. + */ + + char x[2]; + + assert( Chan != NULL ); + + x[0] = Mode; x[1] = '\0'; + if( ! strchr( Chan->modes, x[0] )) + { + /* Channel does not have this mode yet, set it */ + strlcat( Chan->modes, x, sizeof( Chan->modes )); + return true; + } + else return false; +} /* Channel_ModeAdd */ + + +GLOBAL bool +Channel_ModeDel( CHANNEL *Chan, char Mode ) +{ + /* Delete mode. + * if the mode was removed return true. + * if the channel did not have the mode, return false. + */ + char *p; + + assert( Chan != NULL ); + + p = strchr( Chan->modes, Mode ); + if( ! p ) return false; + + /* Channel has mode -> delete */ + while( *p ) + { + *p = *(p + 1); + p++; + } + return true; +} /* Channel_ModeDel */ + + +GLOBAL bool +Channel_UserModeAdd( CHANNEL *Chan, CLIENT *Client, char Mode ) +{ + /* Set Channel-User-Mode. + * if mode was newly set, return true. + * if the User already had this channel-mode, return false. + */ + + CL2CHAN *cl2chan; + char x[2]; + + assert( Chan != NULL ); + assert( Client != NULL ); + + cl2chan = Get_Cl2Chan( Chan, Client ); + assert( cl2chan != NULL ); + + x[0] = Mode; x[1] = '\0'; + if( ! strchr( cl2chan->modes, x[0] )) + { + /* mode not set, -> set it */ + strlcat( cl2chan->modes, x, sizeof( cl2chan->modes )); + return true; + } + else return false; +} /* Channel_UserModeAdd */ + + +GLOBAL bool +Channel_UserModeDel( CHANNEL *Chan, CLIENT *Client, char Mode ) +{ + /* Delete Channel-User-Mode. + * If Mode was removed, return true. + * If User did not have the Channel-Mode, return false. + */ + + CL2CHAN *cl2chan; + char *p; + + assert( Chan != NULL ); + assert( Client != NULL ); + + cl2chan = Get_Cl2Chan( Chan, Client ); + assert( cl2chan != NULL ); + + p = strchr( cl2chan->modes, Mode ); + if( ! p ) return false; + + /* Client has Mode -> delete */ + while( *p ) + { + *p = *(p + 1); + p++; + } + return true; +} /* Channel_UserModeDel */ + + +GLOBAL char * +Channel_UserModes( CHANNEL *Chan, CLIENT *Client ) { - /* Neue Channel-Struktur anlegen */ + /* return Users' Channel-Modes */ + + CL2CHAN *cl2chan; + + assert( Chan != NULL ); + assert( Client != NULL ); + + cl2chan = Get_Cl2Chan( Chan, Client ); + assert( cl2chan != NULL ); + + return cl2chan->modes; +} /* Channel_UserModes */ + + +GLOBAL bool +Channel_IsMemberOf( CHANNEL *Chan, CLIENT *Client ) +{ + /* Test if Client is on Channel Chan */ + + assert( Chan != NULL ); + assert( Client != NULL ); + return Get_Cl2Chan(Chan, Client) != NULL; +} /* Channel_IsMemberOf */ + + +GLOBAL char * +Channel_Topic( CHANNEL *Chan ) +{ + char *ret; + assert( Chan != NULL ); + ret = array_start(&Chan->topic); + return ret ? ret : ""; +} /* Channel_Topic */ + +#ifndef STRICT_RFC + +GLOBAL unsigned int +Channel_TopicTime(CHANNEL *Chan) +{ + assert(Chan != NULL); + return (unsigned int) Chan->topic_time; +} /* Channel_TopicTime */ + + +GLOBAL char * +Channel_TopicWho(CHANNEL *Chan) +{ + assert(Chan != NULL); + return Chan->topic_who; +} /* Channel_TopicWho */ + +#endif + + +GLOBAL void +Channel_SetTopic(CHANNEL *Chan, CLIENT *Client, char *Topic) +{ + size_t len; + assert( Chan != NULL ); + assert( Topic != NULL ); + + len = strlen(Topic); + if (len < array_bytes(&Chan->topic)) + array_free(&Chan->topic); + + if (len >= COMMAND_LEN || !array_copyb(&Chan->topic, Topic, len+1)) + Log(LOG_WARNING, "could not set new Topic \"%s\" on %s: %s", + Topic, Chan->name, strerror(errno)); +#ifndef STRICT_RFC + Chan->topic_time = time(NULL); + if (Client != NULL && Client_Type(Client) != CLIENT_SERVER) + strlcpy(Chan->topic_who, Client_ID(Client), + sizeof Chan->topic_who); + else + strlcpy(Chan->topic_who, DEFAULT_TOPIC_ID, + sizeof Chan->topic_who); +#else + (void) Client; +#endif +} /* Channel_SetTopic */ + + +GLOBAL void +Channel_SetModes( CHANNEL *Chan, char *Modes ) +{ + assert( Chan != NULL ); + assert( Modes != NULL ); + + strlcpy( Chan->modes, Modes, sizeof( Chan->modes )); +} /* Channel_SetModes */ + + +GLOBAL void +Channel_SetKey( CHANNEL *Chan, char *Key ) +{ + assert( Chan != NULL ); + assert( Key != NULL ); + + strlcpy( Chan->key, Key, sizeof( Chan->key )); + LogDebug("Channel %s: Key is now \"%s\".", Chan->name, Chan->key ); +} /* Channel_SetKey */ + + +GLOBAL void +Channel_SetMaxUsers(CHANNEL *Chan, unsigned long Count) +{ + assert( Chan != NULL ); + + Chan->maxusers = Count; + LogDebug("Channel %s: Member limit is now %lu.", Chan->name, Chan->maxusers ); +} /* Channel_SetMaxUsers */ + + +static bool +Can_Send_To_Channel(CHANNEL *Chan, CLIENT *From) +{ + bool is_member, has_voice, is_op; + + is_member = has_voice = is_op = false; + + if (Channel_IsMemberOf(Chan, From)) { + is_member = true; + if (strchr(Channel_UserModes(Chan, From), 'v')) + has_voice = true; + if (strchr(Channel_UserModes(Chan, From), 'o')) + is_op = true; + } + + /* + * Is the client allowed to write to channel? + * + * If channel mode n set: non-members cannot send to channel. + * If channel mode m set: need voice. + */ + if (strchr(Channel_Modes(Chan), 'n') && !is_member) + return false; + + if (is_op || has_voice) + return true; + + if (strchr(Channel_Modes(Chan), 'm')) + return false; + + return !Lists_Check(&Chan->list_bans, From); +} + + +GLOBAL bool +Channel_Write(CHANNEL *Chan, CLIENT *From, CLIENT *Client, const char *Text) +{ + if (!Can_Send_To_Channel(Chan, From)) + return IRC_WriteStrClient(From, ERR_CANNOTSENDTOCHAN_MSG, Client_ID(From), Channel_Name(Chan)); + + if (Client_Conn(From) > NONE) + Conn_UpdateIdle(Client_Conn(From)); + + return IRC_WriteStrChannelPrefix(Client, Chan, From, true, + "PRIVMSG %s :%s", Channel_Name(Chan), Text); +} + + +GLOBAL bool +Channel_Notice(CHANNEL *Chan, CLIENT *From, CLIENT *Client, const char *Text) +{ + if (!Can_Send_To_Channel(Chan, From)) + return true; /* no error, see RFC 2812 */ + + if (Client_Conn(From) > NONE) + Conn_UpdateIdle(Client_Conn(From)); + + return IRC_WriteStrChannelPrefix(Client, Chan, From, true, + "NOTICE %s :%s", Channel_Name(Chan), Text); +} + + +GLOBAL CHANNEL * +Channel_Create( char *Name ) +{ + /* Create new CHANNEL structure and add it to linked list */ CHANNEL *c; assert( Name != NULL ); - - c = malloc( sizeof( CHANNEL )); + + c = (CHANNEL *)malloc( sizeof( CHANNEL )); if( ! c ) { - Log( LOG_EMERG, "Can't allocate memory!" ); + Log( LOG_EMERG, "Can't allocate memory! [New_Chan]" ); return NULL; } - c->next = NULL; - strncpy( c->name, Name, CHANNEL_NAME_LEN ); - c->name[CHANNEL_NAME_LEN - 1] = '\0'; - strcpy( c->modes, "" ); - - Log( LOG_DEBUG, "Created new channel structure for \"%s\".", Name ); - + memset( c, 0, sizeof( CHANNEL )); + strlcpy( c->name, Name, sizeof( c->name )); + c->hash = Hash( c->name ); + c->next = My_Channels; + My_Channels = c; + LogDebug("Created new channel structure for \"%s\".", Name); return c; -} /* New_Chan */ +} /* Channel_Create */ -LOCAL CL2CHAN *Get_Cl2Chan( CHANNEL *Chan, CLIENT *Client ) +static CL2CHAN * +Get_Cl2Chan( CHANNEL *Chan, CLIENT *Client ) { CL2CHAN *cl2chan; @@ -287,21 +815,24 @@ LOCAL CL2CHAN *Get_Cl2Chan( CHANNEL *Chan, CLIENT *Client ) } /* Get_Cl2Chan */ -LOCAL CL2CHAN *Add_Client( CHANNEL *Chan, CLIENT *Client ) +static CL2CHAN * +Add_Client( CHANNEL *Chan, CLIENT *Client ) { CL2CHAN *cl2chan; assert( Chan != NULL ); assert( Client != NULL ); - cl2chan = malloc( sizeof( CL2CHAN )); + /* neue CL2CHAN-Struktur anlegen */ + cl2chan = (CL2CHAN *)malloc( sizeof( CL2CHAN )); if( ! cl2chan ) { - Log( LOG_EMERG, "Can't allocate memory!" ); + Log( LOG_EMERG, "Can't allocate memory! [Add_Client]" ); return NULL; } cl2chan->channel = Chan; cl2chan->client = Client; + strcpy( cl2chan->modes, "" ); /* Verketten */ cl2chan->next = My_Cl2Chan; @@ -313,7 +844,8 @@ LOCAL CL2CHAN *Add_Client( CHANNEL *Chan, CLIENT *Client ) } /* Add_Client */ -LOCAL BOOLEAN Remove_Client( CHANNEL *Chan, CLIENT *Client, CLIENT *Origin, CHAR *Reason, BOOLEAN ServerPART ) +static bool +Remove_Client( int Type, CHANNEL *Chan, CLIENT *Client, CLIENT *Origin, const char *Reason, bool InformServer ) { CL2CHAN *cl2chan, *last_cl2chan; CHANNEL *c; @@ -331,7 +863,7 @@ LOCAL BOOLEAN Remove_Client( CHANNEL *Chan, CLIENT *Client, CLIENT *Origin, CHAR last_cl2chan = cl2chan; cl2chan = cl2chan->next; } - if( ! cl2chan ) return FALSE; + if( ! cl2chan ) return false; c = cl2chan->channel; assert( c != NULL ); @@ -341,26 +873,128 @@ LOCAL BOOLEAN Remove_Client( CHANNEL *Chan, CLIENT *Client, CLIENT *Origin, CHAR else My_Cl2Chan = cl2chan->next; free( cl2chan ); - if( Client_Conn( Origin ) > NONE ) IRC_WriteStrClientPrefix( Origin, Client, "PART %s :%s", c->name, Reason ); - if( ServerPART ) IRC_WriteStrServersPrefix( Origin, Client, "PART %s :%s", c->name, Reason ); - IRC_WriteStrChannelPrefix( Origin, c, Client, FALSE, "PART %s :%s", c->name, Reason ); + switch( Type ) + { + case REMOVE_QUIT: + /* QUIT: other servers have already been notified, see Client_Destroy(); + * so only inform other clients in same channel. */ + assert( InformServer == false ); + LogDebug("User \"%s\" left channel \"%s\" (%s).", + Client_Mask( Client ), c->name, Reason ); + break; + case REMOVE_KICK: + /* User was KICKed: inform other servers and all users in channel */ + if( InformServer ) + IRC_WriteStrServersPrefix( Client_NextHop( Origin ), + Origin, "KICK %s %s :%s", c->name, Client_ID( Client ), Reason); + IRC_WriteStrChannelPrefix(Client, c, Origin, false, "KICK %s %s :%s", + c->name, Client_ID( Client ), Reason ); + if ((Client_Conn(Client) > NONE) && + (Client_Type(Client) == CLIENT_USER)) + { + IRC_WriteStrClientPrefix(Client, Origin, "KICK %s %s :%s", + c->name, Client_ID( Client ), Reason); + } + LogDebug("User \"%s\" has been kicked off \"%s\" by \"%s\": %s.", + Client_Mask( Client ), c->name, Client_ID(Origin), Reason); + break; + default: /* PART */ + if (InformServer) + IRC_WriteStrServersPrefix(Origin, Client, "PART %s :%s", c->name, Reason); + + IRC_WriteStrChannelPrefix(Origin, c, Client, false, "PART %s :%s", + c->name, Reason); + + if ((Client_Conn(Origin) > NONE) && + (Client_Type(Origin) == CLIENT_USER)) + { + IRC_WriteStrClientPrefix( Origin, Client, "PART %s :%s", c->name, Reason); + LogDebug("User \"%s\" left channel \"%s\" (%s).", + Client_Mask(Client), c->name, Reason); + } + } - Log( LOG_DEBUG, "User \"%s\" left channel \"%s\" (%s).", Client_Mask( Client ), c->name, Reason ); + /* Wenn Channel nun leer und nicht pre-defined: loeschen */ + if( ! strchr( Channel_Modes( Chan ), 'P' )) + { + if( ! Get_First_Cl2Chan( NULL, Chan )) Delete_Channel( Chan ); + } - /* Wenn Channel nun leer: loeschen */ - if( ! Get_First_Cl2Chan( NULL, Chan )) Delete_Channel( Chan ); - - return TRUE; + return true; } /* Remove_Client */ -LOCAL CL2CHAN *Get_First_Cl2Chan( CLIENT *Client, CHANNEL *Chan ) +GLOBAL bool +Channel_AddBan(CHANNEL *c, const char *mask ) +{ + struct list_head *h = Channel_GetListBans(c); + return Lists_Add(h, mask, false); +} + + +GLOBAL bool +Channel_AddInvite(CHANNEL *c, const char *mask, bool onlyonce) +{ + struct list_head *h = Channel_GetListInvites(c); + return Lists_Add(h, mask, onlyonce); +} + + +static bool +ShowInvitesBans(struct list_head *head, CLIENT *Client, CHANNEL *Channel, bool invite) +{ + struct list_elem *e; + char *msg = invite ? RPL_INVITELIST_MSG : RPL_BANLIST_MSG; + char *msg_end; + + assert( Client != NULL ); + assert( Channel != NULL ); + + e = Lists_GetFirst(head); + while (e) { + if( ! IRC_WriteStrClient( Client, msg, Client_ID( Client ), + Channel_Name( Channel ), Lists_GetMask(e) )) return DISCONNECTED; + e = Lists_GetNext(e); + } + + msg_end = invite ? RPL_ENDOFINVITELIST_MSG : RPL_ENDOFBANLIST_MSG; + return IRC_WriteStrClient( Client, msg_end, Client_ID( Client ), Channel_Name( Channel )); +} + + +GLOBAL bool +Channel_ShowBans( CLIENT *Client, CHANNEL *Channel ) +{ + struct list_head *h; + + assert( Channel != NULL ); + + h = Channel_GetListBans(Channel); + return ShowInvitesBans(h, Client, Channel, false); +} + + +GLOBAL bool +Channel_ShowInvites( CLIENT *Client, CHANNEL *Channel ) +{ + struct list_head *h; + + assert( Channel != NULL ); + + h = Channel_GetListInvites(Channel); + return ShowInvitesBans(h, Client, Channel, true); +} + + +static CL2CHAN * +Get_First_Cl2Chan( CLIENT *Client, CHANNEL *Chan ) { return Get_Next_Cl2Chan( My_Cl2Chan, Client, Chan ); } /* Get_First_Cl2Chan */ -LOCAL CL2CHAN *Get_Next_Cl2Chan( CL2CHAN *Start, CLIENT *Client, CHANNEL *Channel ) +static CL2CHAN * +Get_Next_Cl2Chan( CL2CHAN *Start, CLIENT *Client, CHANNEL *Channel ) { CL2CHAN *cl2chan; @@ -377,10 +1011,11 @@ LOCAL CL2CHAN *Get_Next_Cl2Chan( CL2CHAN *Start, CLIENT *Client, CHANNEL *Channe } /* Get_Next_Cl2Chan */ -LOCAL BOOLEAN Delete_Channel( CHANNEL *Chan ) +static bool +Delete_Channel( CHANNEL *Chan ) { /* Channel-Struktur loeschen */ - + CHANNEL *chan, *last_chan; last_chan = NULL; @@ -391,16 +1026,20 @@ LOCAL BOOLEAN Delete_Channel( CHANNEL *Chan ) last_chan = chan; chan = chan->next; } - if( ! chan ) return FALSE; + if( ! chan ) return false; Log( LOG_DEBUG, "Freed channel structure for \"%s\".", Chan->name ); + /* Invite- und Ban-Lists aufraeumen */ + Lists_Free( &chan->list_bans ); + Lists_Free( &chan->list_invites ); + /* Neu verketten und freigeben */ if( last_chan ) last_chan->next = chan->next; else My_Channels = chan->next; free( chan ); - - return TRUE; + + return true; } /* Delete_Channel */