/*
* ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001-2005 by Alexander Barton (alex@barton.de)
+ * Copyright (c)2001-2014 Alexander Barton (alex@barton.de) and Contributors.
*
* 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.
- *
- * Channel management
*/
-
#define __channel_c__
-
#include "portab.h"
-static char UNUSED id[] = "$Id: channel.c,v 1.49 2005/06/17 19:16:53 fw Exp $";
+/**
+ * @file
+ * Channel management
+ */
-#include "imp.h"
#include <assert.h>
#include <stdlib.h>
#include <string.h>
+#include <errno.h>
+#include <stdio.h>
#include <strings.h>
+#include <time.h>
-#include "defines.h"
#include "conn-func.h"
-#include "client.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 "exp.h"
-
+#include "match.h"
#define REMOVE_PART 0
#define REMOVE_QUIT 1
#define REMOVE_KICK 2
+static CHANNEL *My_Channels;
+static CL2CHAN *My_Cl2Chan;
-LOCAL CHANNEL *My_Channels;
-LOCAL CL2CHAN *My_Cl2Chan;
-
-
-LOCAL CL2CHAN *Get_Cl2Chan PARAMS(( CHANNEL *Chan, CLIENT *Client ));
-LOCAL CL2CHAN *Add_Client PARAMS(( CHANNEL *Chan, CLIENT *Client ));
-LOCAL bool Remove_Client PARAMS(( int Type, CHANNEL *Chan, CLIENT *Client, CLIENT *Origin, char *Reason, bool InformServer ));
-LOCAL CL2CHAN *Get_First_Cl2Chan PARAMS(( CLIENT *Client, CHANNEL *Chan ));
-LOCAL CL2CHAN *Get_Next_Cl2Chan PARAMS(( CL2CHAN *Start, CLIENT *Client, CHANNEL *Chan ));
-LOCAL bool Delete_Channel PARAMS(( CHANNEL *Chan ));
+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 void Delete_Channel PARAMS(( CHANNEL *Chan ));
+static void Free_Channel PARAMS(( CHANNEL *Chan ));
+static void Set_KeyFile PARAMS((CHANNEL *Chan, const char *KeyFile));
GLOBAL void
} /* Channel_Init */
+GLOBAL struct list_head *
+Channel_GetListBans(CHANNEL *c)
+{
+ assert(c != NULL);
+ return &c->list_bans;
+}
+
+
+GLOBAL struct list_head *
+Channel_GetListExcepts(CHANNEL *c)
+{
+ assert(c != NULL);
+ return &c->list_excepts;
+}
+
+
+GLOBAL struct list_head *
+Channel_GetListInvites(CHANNEL *c)
+{
+ assert(c != NULL);
+ return &c->list_invites;
+}
+
+
+/**
+ * Generate predefined persistent channels and &SERVER
+ */
GLOBAL void
Channel_InitPredefined( void )
{
- /* Vordefinierte persistente Channels erzeugen */
+ CHANNEL *new_chan;
+ const struct Conf_Channel *conf_chan;
+ const char *c;
+ size_t i, channel_count = array_length(&Conf_Channels, sizeof(*conf_chan));
- CHANNEL *chan;
- char *c;
- int i;
-
- for( i = 0; i < Conf_Channel_Count; i++ )
- {
- /* Ist ein Name konfiguriert? */
- if( ! Conf_Channel[i].name[0] ) continue;
+ conf_chan = array_start(&Conf_Channels);
- /* 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 );
+ assert(channel_count == 0 || conf_chan != NULL);
+
+ for (i = 0; i < channel_count; i++, conf_chan++) {
+ if (!conf_chan->name[0])
+ continue;
+ if (!Channel_IsValidName(conf_chan->name)) {
+ Log(LOG_ERR,
+ "Can't create pre-defined channel: invalid name: \"%s\"",
+ conf_chan->name);
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 );
+ new_chan = Channel_Search(conf_chan->name);
+ if (new_chan) {
+ Log(LOG_INFO,
+ "Can't create pre-defined channel \"%s\": name already in use.",
+ conf_chan->name);
+ Set_KeyFile(new_chan, conf_chan->keyfile);
continue;
}
-
- /* Channel anlegen */
- chan = Channel_Create( Conf_Channel[i].name );
- if( chan )
- {
- Channel_ModeAdd( chan, 'P' );
- Channel_SetTopic( chan, Conf_Channel[i].topic );
- c = Conf_Channel[i].modes;
- while( *c ) Channel_ModeAdd( chan, *c++ );
- Log( LOG_INFO, "Created pre-defined channel \"%s\".", Conf_Channel[i].name );
+
+ new_chan = Channel_Create(conf_chan->name);
+ if (!new_chan) {
+ Log(LOG_ERR, "Can't create pre-defined channel \"%s\"!",
+ conf_chan->name);
+ continue;
}
- else Log( LOG_ERR, "Can't create pre-defined channel \"%s\"!", Conf_Channel[i].name );
+ Log(LOG_INFO, "Created pre-defined channel \"%s\".",
+ conf_chan->name);
+
+ Channel_ModeAdd(new_chan, 'P');
+
+ if (conf_chan->topic[0])
+ Channel_SetTopic(new_chan, NULL, conf_chan->topic);
+
+ c = conf_chan->modes;
+ while (*c)
+ Channel_ModeAdd(new_chan, *c++);
+
+ Channel_SetKey(new_chan, conf_chan->key);
+ Channel_SetMaxUsers(new_chan, conf_chan->maxusers);
+ Set_KeyFile(new_chan, conf_chan->keyfile);
}
+ if (channel_count)
+ array_free(&Conf_Channels);
+
+ /* Make sure the local &SERVER channel exists */
+ if (!Channel_Search("&SERVER")) {
+ new_chan = Channel_Create("&SERVER");
+ if (new_chan) {
+ Channel_SetModes(new_chan, "mnPt");
+ Channel_SetTopic(new_chan, Client_ThisServer(),
+ "Server Messages");
+ } else
+ Log(LOG_ERR, "Failed to create \"&SERVER\" channel!");
+ } else
+ LogDebug("Required channel \"&SERVER\" already exists, ok.");
} /* Channel_InitPredefined */
+static void
+Free_Channel(CHANNEL *chan)
+{
+ array_free(&chan->topic);
+ array_free(&chan->keyfile);
+ Lists_Free(&chan->list_bans);
+ Lists_Free(&chan->list_excepts);
+ Lists_Free(&chan->list_invites);
+
+ free(chan);
+}
+
+
GLOBAL void
Channel_Exit( void )
{
CHANNEL *c, *c_next;
CL2CHAN *cl2chan, *cl2chan_next;
-
- /* Channel-Strukturen freigeben */
+
+ /* free struct Channel */
c = My_Channels;
- while( c )
- {
+ while (c) {
c_next = c->next;
- free( c );
+ Free_Channel(c);
c = c_next;
}
- /* Channel-Zuordnungstabelle freigeben */
+ /* Free Channel allocation table */
cl2chan = My_Cl2Chan;
- while( c )
- {
+ while (cl2chan) {
cl2chan_next = cl2chan->next;
- free( cl2chan );
+ free(cl2chan);
cl2chan = cl2chan_next;
}
} /* Channel_Exit */
+/**
+ * Join Channel
+ * This function lets a client join a channel. First, the function
+ * checks that the specified channel name is valid and that the client
+ * isn't already a member. If the specified channel doesn't exist,
+ * a new channel is created. Client is added to channel by function
+ * Add_Client().
+ */
GLOBAL bool
-Channel_Join( CLIENT *Client, char *Name )
+Channel_Join( CLIENT *Client, const char *Name )
{
CHANNEL *chan;
-
- assert( Client != NULL );
- assert( Name != NULL );
- /* Valider Channel-Name? */
- if( ! Channel_IsValidName( Name ))
- {
- IRC_WriteStrClient( Client, ERR_NOSUCHCHANNEL_MSG, Client_ID( Client ), Name );
+ assert(Client != NULL);
+ assert(Name != NULL);
+
+ /* Check that the channel name is valid */
+ if (! Channel_IsValidName(Name)) {
+ IRC_WriteErrClient(Client, ERR_NOSUCHCHANNEL_MSG,
+ Client_ID(Client), Name);
return false;
}
- /* Channel suchen */
- chan = Channel_Search( Name );
- if( chan )
- {
- /* Ist der Client bereits Mitglied? */
- if( Get_Cl2Chan( chan, Client )) return false;
- }
- else
- {
- /* Gibt es noch nicht? Dann neu anlegen: */
- chan = Channel_Create( Name );
- if( ! chan ) return false;
+ chan = Channel_Search(Name);
+ if(chan) {
+ /* Check if the client is already in the channel */
+ if (Get_Cl2Chan(chan, Client))
+ return false;
+ } else {
+ /* If the specified channel does not exist, the channel
+ * is now created */
+ chan = Channel_Create(Name);
+ if (!chan)
+ return false;
}
- /* User dem Channel hinzufuegen */
- if( ! Add_Client( chan, Client )) return false;
- else return true;
+ /* Add user to Channel */
+ if (! Add_Client(chan, Client))
+ return false;
+
+ return true;
} /* Channel_Join */
+/**
+ * Part client from channel.
+ * This function lets a client part from 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, char *Name, char *Reason )
+Channel_Part(CLIENT * Client, CLIENT * Origin, const char *Name, const char *Reason)
{
CHANNEL *chan;
- assert( Client != NULL );
- assert( Name != NULL );
- assert( Reason != NULL );
+ assert(Client != NULL);
+ assert(Name != NULL);
+ assert(Reason != NULL);
- /* Channel suchen */
- chan = Channel_Search( Name );
- if(( ! chan ) || ( ! Get_Cl2Chan( chan, Client )))
- {
- IRC_WriteStrClient( Client, ERR_NOSUCHCHANNEL_MSG, Client_ID( Client ), Name );
+ /* Check that specified channel exists */
+ chan = Channel_Search(Name);
+ if (!chan) {
+ IRC_WriteErrClient(Client, ERR_NOSUCHCHANNEL_MSG,
+ Client_ID(Client), Name);
+ return false;
+ }
+
+ /* Check that the client is in the channel */
+ if (!Get_Cl2Chan(chan, Client)) {
+ IRC_WriteErrClient(Client, ERR_NOTONCHANNEL_MSG,
+ Client_ID(Client), Name);
return false;
}
- /* User aus Channel entfernen */
- if( ! Remove_Client( REMOVE_PART, chan, Client, Origin, Reason, true)) return false;
- else return true;
+ if (Conf_MorePrivacy)
+ Reason = "";
+
+ /* Part client from channel */
+ if (!Remove_Client(REMOVE_PART, chan, Client, Origin, Reason, true))
+ return false;
+ else
+ return true;
} /* Channel_Part */
+/**
+ * Kick user from Channel
+ */
GLOBAL void
-Channel_Kick( CLIENT *Client, CLIENT *Origin, char *Name, char *Reason )
+Channel_Kick(CLIENT *Peer, CLIENT *Target, CLIENT *Origin, const char *Name,
+ const char *Reason )
{
CHANNEL *chan;
+ bool can_kick = false;
- assert( Client != NULL );
- assert( Origin != NULL );
- assert( Name != NULL );
- assert( Reason != NULL );
+ assert(Peer != NULL);
+ assert(Target != NULL);
+ assert(Origin != NULL);
+ assert(Name != NULL);
+ assert(Reason != NULL);
- /* Channel suchen */
+ /* Check that channel exists */
chan = Channel_Search( Name );
- if( ! chan )
- {
- IRC_WriteStrClient( Origin, ERR_NOSUCHCHANNEL_MSG, Client_ID( Origin ), Name );
+ if (!chan) {
+ IRC_WriteErrClient(Origin, ERR_NOSUCHCHANNEL_MSG,
+ Client_ID(Origin), Name);
return;
}
- /* Ist der User Mitglied in dem Channel? */
- if( ! Channel_IsMemberOf( chan, Origin ))
- {
- IRC_WriteStrClient( Origin, ERR_NOTONCHANNEL_MSG, Client_ID( Origin ), Name );
- return;
+ if (Client_Type(Peer) != CLIENT_SERVER &&
+ Client_Type(Origin) != CLIENT_SERVICE) {
+ /* Check that user is on the specified channel */
+ if (!Channel_IsMemberOf(chan, Origin)) {
+ IRC_WriteErrClient(Origin, ERR_NOTONCHANNEL_MSG,
+ Client_ID(Origin), Name);
+ return;
+ }
}
- /* Ist der User Channel-Operator? */
- if( ! strchr( Channel_UserModes( chan, Origin ), 'o' ))
- {
- IRC_WriteStrClient( Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( Origin ), Name);
+ /* Check that the client to be kicked is on the specified channel */
+ if (!Channel_IsMemberOf(chan, Target)) {
+ IRC_WriteErrClient(Origin, ERR_USERNOTINCHANNEL_MSG,
+ Client_ID(Origin), Client_ID(Target), Name );
return;
}
- /* Ist der Ziel-User Mitglied im Channel? */
- if( ! Channel_IsMemberOf( chan, Client ))
- {
- IRC_WriteStrClient( Origin, ERR_USERNOTINCHANNEL_MSG, Client_ID( Origin ), Client_ID( Client ), Name );
- return;
+ if(Client_Type(Peer) == CLIENT_USER) {
+ /* Channel mode 'Q' and user mode 'q' on target: nobody but
+ * IRC Operators and servers can kick the target user */
+ if ((Channel_HasMode(chan, 'Q')
+ || Client_HasMode(Target, 'q')
+ || Client_Type(Target) == CLIENT_SERVICE)
+ && !Client_HasMode(Origin, 'o')) {
+ IRC_WriteErrClient(Origin, ERR_KICKDENY_MSG,
+ Client_ID(Origin), Name,
+ Client_ID(Target));
+ return;
+ }
+
+ /* Check if client has the rights to kick target */
+
+ /* Owner can kick everyone */
+ if (Channel_UserHasMode(chan, Peer, 'q'))
+ can_kick = true;
+
+ /* Admin can't kick owner */
+ else if (Channel_UserHasMode(chan, Peer, 'a') &&
+ !Channel_UserHasMode(chan, Target, 'q'))
+ can_kick = true;
+
+ /* Op can't kick owner | admin */
+ else if (Channel_UserHasMode(chan, Peer, 'o') &&
+ !Channel_UserHasMode(chan, Target, 'q') &&
+ !Channel_UserHasMode(chan, Target, 'a'))
+ can_kick = true;
+
+ /* Half Op can't kick owner | admin | op */
+ else if (Channel_UserHasMode(chan, Peer, 'h') &&
+ !Channel_UserHasMode(chan, Target, 'q') &&
+ !Channel_UserHasMode(chan, Target, 'a') &&
+ !Channel_UserHasMode(chan, Target, 'o'))
+ can_kick = true;
+
+ /* IRC operators & IRCd with OperCanMode enabled
+ * can kick anyways regardless of privilege */
+ else if(Client_HasMode(Origin, 'o') && Conf_OperCanMode)
+ can_kick = true;
+
+ if(!can_kick) {
+ IRC_WriteErrClient(Origin, ERR_CHANOPPRIVTOOLOW_MSG,
+ Client_ID(Origin), Name);
+ return;
+ }
}
- Remove_Client( REMOVE_KICK, chan, Client, Origin, Reason, true);
+ /* Kick Client from channel */
+ Remove_Client( REMOVE_KICK, chan, Target, Origin, Reason, true);
} /* Channel_Kick */
GLOBAL void
-Channel_Quit( CLIENT *Client, char *Reason )
+Channel_Quit( CLIENT *Client, const char *Reason )
{
CHANNEL *c, *next_c;
assert( Client != NULL );
assert( Reason != NULL );
+ if (Conf_MorePrivacy)
+ Reason = "";
+
IRC_WriteStrRelatedPrefix( Client, Client, false, "QUIT :%s", Reason );
c = My_Channels;
} /* Channel_Quit */
-GLOBAL long
-Channel_Count( void )
+/**
+ * Get number of channels this server knows and that are "visible" to
+ * the given client. If no client is given, all channels will be counted.
+ *
+ * @param Client The client to check or NULL.
+ * @return Number of channels visible to the client.
+ */
+GLOBAL unsigned long
+Channel_CountVisible (CLIENT *Client)
{
CHANNEL *c;
- long count = 0;
-
+ unsigned long count = 0;
+
c = My_Channels;
- while( c )
- {
- count++;
+ while(c) {
+ if (Client) {
+ if (!Channel_HasMode(c, 's')
+ || Channel_IsMemberOf(c, Client))
+ count++;
+ } else
+ count++;
c = c->next;
}
return count;
-} /* Channel_Count */
+}
-GLOBAL long
+GLOBAL unsigned long
Channel_MemberCount( CHANNEL *Chan )
{
CL2CHAN *cl2chan;
- long count = 0;
+ unsigned long count = 0;
assert( Chan != NULL );
CL2CHAN *cl2chan;
int count = 0;
-
+
assert( Client != NULL );
-
+
cl2chan = My_Cl2Chan;
while( cl2chan )
{
} /* Channel_CountForUser */
-GLOBAL int
-Channel_PCount( void )
-{
- /* Count the number of persistent (mode 'P') channels */
-
- CHANNEL *chan;
- int count = 0;
-
- chan = My_Channels;
- while( chan )
- {
- if( strchr( chan->modes, 'P' )) count++;
- chan = chan->next;
- }
-
- return count;
-} /* Channel_PCount */
-
-
-GLOBAL char *
-Channel_Name( CHANNEL *Chan )
+GLOBAL const char *
+Channel_Name( const CHANNEL *Chan )
{
assert( Chan != NULL );
return Chan->name;
} /* Channel_Modes */
+GLOBAL bool
+Channel_HasMode( CHANNEL *Chan, char Mode )
+{
+ assert( Chan != NULL );
+ return strchr( Chan->modes, Mode ) != NULL;
+} /* Channel_HasMode */
+
+
GLOBAL char *
Channel_Key( CHANNEL *Chan )
{
} /* Channel_Key */
-GLOBAL long
+GLOBAL unsigned long
Channel_MaxUsers( CHANNEL *Chan )
{
assert( Chan != NULL );
GLOBAL CHANNEL *
-Channel_Search( char *Name )
+Channel_Search( const char *Name )
{
- /* Channel-Struktur suchen */
-
+ /* Search channel structure */
+
CHANNEL *c;
UINT32 search_hash;
{
if( search_hash == c->hash )
{
- /* lt. Hash-Wert: Treffer! */
+ /* hash hit */
if( strcasecmp( Name, c->name ) == 0 ) return c;
}
c = c->next;
GLOBAL bool
-Channel_IsValidName( char *Name )
+Channel_IsValidName( const char *Name )
{
- /* Pruefen, ob Name als Channelname gueltig */
-
- char *ptr, badchars[10];
-
assert( Name != NULL );
- if(( Name[0] != '#' ) || ( strlen( Name ) >= CHANNEL_NAME_LEN )) return false;
+#ifdef STRICT_RFC
+ if (strlen(Name) <= 1)
+ return false;
+#endif
+ if (strchr("#&+", Name[0]) == NULL)
+ return false;
+ if (strlen(Name) >= CHANNEL_NAME_LEN)
+ return false;
- ptr = Name;
- badchars[0] = '\0';
- while( *ptr )
- {
- if( strchr( badchars, *ptr )) return false;
- ptr++;
- }
-
- return true;
+ return Name[strcspn(Name, " ,:\007")] == 0;
} /* Channel_IsValidName */
assert( Chan != NULL );
x[0] = Mode; x[1] = '\0';
- if( ! strchr( Chan->modes, x[0] ))
+ if( ! Channel_HasMode( Chan, x[0] ))
{
/* Channel does not have this mode yet, set it */
strlcat( Chan->modes, x, sizeof( Chan->modes ));
* if the mode was removed return true.
* if the channel did not have the mode, return false.
*/
- char x[2], *p;
+ char *p;
assert( Chan != NULL );
- x[0] = Mode; x[1] = '\0';
-
- p = strchr( Chan->modes, x[0] );
+ p = strchr( Chan->modes, Mode );
if( ! p ) return false;
/* Channel has mode -> delete */
cl2chan = Get_Cl2Chan( Chan, Client );
assert( cl2chan != NULL );
-
+
x[0] = Mode; x[1] = '\0';
if( ! strchr( cl2chan->modes, x[0] ))
{
*/
CL2CHAN *cl2chan;
- char x[2], *p;
+ char *p;
assert( Chan != NULL );
assert( Client != NULL );
cl2chan = Get_Cl2Chan( Chan, Client );
assert( cl2chan != NULL );
- x[0] = Mode; x[1] = '\0';
-
- p = strchr( cl2chan->modes, x[0] );
+ p = strchr( cl2chan->modes, Mode );
if( ! p ) return false;
/* Client has Mode -> delete */
Channel_UserModes( CHANNEL *Chan, CLIENT *Client )
{
/* return Users' Channel-Modes */
-
+
CL2CHAN *cl2chan;
assert( Chan != NULL );
} /* Channel_UserModes */
+GLOBAL bool
+Channel_UserHasMode( CHANNEL *Chan, CLIENT *Client, char Mode )
+{
+ return strchr(Channel_UserModes(Chan, Client), Mode) != NULL;
+} /* Channel_UserHasMode */
+
+
GLOBAL bool
Channel_IsMemberOf( CHANNEL *Chan, CLIENT *Client )
{
assert( Chan != NULL );
assert( Client != NULL );
-
- if( Get_Cl2Chan( Chan, Client )) return true;
- else return false;
+ return Get_Cl2Chan(Chan, Client) != NULL;
} /* Channel_IsMemberOf */
GLOBAL char *
Channel_Topic( CHANNEL *Chan )
{
+ char *ret;
assert( Chan != NULL );
- return Chan->topic;
+ 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 */
+
+
+GLOBAL unsigned int
+Channel_CreationTime(CHANNEL *Chan)
+{
+ assert(Chan != NULL);
+ return (unsigned int) Chan->creation_time;
+} /* Channel_CreationTime */
+
+#endif
+
+
GLOBAL void
-Channel_SetTopic( CHANNEL *Chan, char *Topic )
+Channel_SetTopic(CHANNEL *Chan, CLIENT *Client, const char *Topic)
{
+ size_t len;
assert( Chan != NULL );
assert( Topic != NULL );
-
- strlcpy( Chan->topic, Topic, sizeof( Chan->topic ));
+
+ 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 )
+Channel_SetModes( CHANNEL *Chan, const char *Modes )
{
assert( Chan != NULL );
assert( Modes != NULL );
GLOBAL void
-Channel_SetKey( CHANNEL *Chan, char *Key )
+Channel_SetKey( CHANNEL *Chan, const char *Key )
{
assert( Chan != NULL );
assert( Key != NULL );
strlcpy( Chan->key, Key, sizeof( Chan->key ));
- Log( LOG_DEBUG, "Channel %s: Key is now \"%s\".", Chan->name, Chan->key );
+ LogDebug("Channel %s: Key is now \"%s\".", Chan->name, Chan->key );
} /* Channel_SetKey */
GLOBAL void
-Channel_SetMaxUsers( CHANNEL *Chan, long Count )
+Channel_SetMaxUsers(CHANNEL *Chan, unsigned long Count)
{
assert( Chan != NULL );
Chan->maxusers = Count;
- Log( LOG_DEBUG, "Channel %s: Member limit is now %ld.", Chan->name, Chan->maxusers );
+ LogDebug("Channel %s: Member limit is now %lu.", Chan->name, Chan->maxusers );
} /* Channel_SetMaxUsers */
-GLOBAL bool
-Channel_Write( CHANNEL *Chan, CLIENT *From, CLIENT *Client, char *Text )
+/**
+ * Check if a client is allowed to send to a specific channel.
+ *
+ * @param Chan The channel to check.
+ * @param From The client that wants to send.
+ * @return true if the client is allowed to send, false otherwise.
+ */
+static bool
+Can_Send_To_Channel(CHANNEL *Chan, CLIENT *From)
{
- bool is_member, has_voice, is_op, ok;
+ bool is_member, has_voice, is_halfop, is_op, is_chanadmin, is_owner;
- /* Okay, target is a channel */
- is_member = has_voice = is_op = false;
- if( Channel_IsMemberOf( Chan, From ))
- {
+ is_member = has_voice = is_halfop = is_op = is_chanadmin = is_owner = false;
+
+ /* The server itself always can send messages :-) */
+ if (Client_ThisServer() == From)
+ return true;
+
+ 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;
+ if (Channel_UserHasMode(Chan, From, 'v'))
+ has_voice = true;
+ if (Channel_UserHasMode(Chan, From, 'h'))
+ is_halfop = true;
+ if (Channel_UserHasMode(Chan, From, 'o'))
+ is_op = true;
+ if (Channel_UserHasMode(Chan, From, 'a'))
+ is_chanadmin = true;
+ if (Channel_UserHasMode(Chan, From, 'q'))
+ is_owner = true;
}
- /* Is the client allowed to write to channel? */
- ok = true;
- if( strchr( Channel_Modes( Chan ), 'n' ) && ( ! is_member )) ok = false;
- if( strchr( Channel_Modes( Chan ), 'm' ) && ( ! is_op ) && ( ! has_voice )) ok = false;
-
- /* Is the client banned? */
- if( Lists_CheckBanned( From, Chan ))
- {
- /* Client is banned, bus is he channel operator or has voice? */
- if(( ! has_voice ) && ( ! is_op )) ok = false;
+ /*
+ * 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 (Channel_HasMode(Chan, 'n') && !is_member)
+ return false;
+
+ if (Channel_HasMode(Chan, 'M') && !Client_HasMode(From, 'R')
+ && !Client_HasMode(From, 'o'))
+ return false;
+
+ if (has_voice || is_halfop || is_op || is_chanadmin || is_owner)
+ return true;
+
+ if (Channel_HasMode(Chan, 'm'))
+ return false;
+
+ if (Lists_Check(&Chan->list_excepts, From))
+ return true;
+
+ return !Lists_Check(&Chan->list_bans, From);
+}
+
+
+GLOBAL bool
+Channel_Write(CHANNEL *Chan, CLIENT *From, CLIENT *Client, const char *Command,
+ bool SendErrors, const char *Text)
+{
+ if (!Can_Send_To_Channel(Chan, From)) {
+ if (! SendErrors)
+ return CONNECTED; /* no error, see RFC 2812 */
+ if (Channel_HasMode(Chan, 'M'))
+ return IRC_WriteErrClient(From, ERR_NEEDREGGEDNICK_MSG,
+ Client_ID(From), Channel_Name(Chan));
+ else
+ return IRC_WriteErrClient(From, ERR_CANNOTSENDTOCHAN_MSG,
+ Client_ID(From), Channel_Name(Chan));
}
- if( ! ok ) return IRC_WriteStrClient( From, ERR_CANNOTSENDTOCHAN_MSG, Client_ID( From ), Channel_Name( Chan ));
+ if (Client_Conn(From) > NONE)
+ Conn_UpdateIdle(Client_Conn(From));
- /* Send text */
- if( Client_Conn( From ) > NONE ) Conn_UpdateIdle( Client_Conn( From ));
- return IRC_WriteStrChannelPrefix( Client, Chan, From, true, "PRIVMSG %s :%s", Channel_Name( Chan ), Text );
-} /* Channel_Write */
+ IRC_WriteStrChannelPrefix(Client, Chan, From, true, "%s %s :%s",
+ Command, Channel_Name(Chan), Text);
+ return CONNECTED;
+}
GLOBAL CHANNEL *
-Channel_Create( char *Name )
+Channel_Create( const char *Name )
{
/* Create new CHANNEL structure and add it to linked list */
CHANNEL *c;
assert( Name != NULL );
-
+
c = (CHANNEL *)malloc( sizeof( CHANNEL ));
if( ! c )
{
strlcpy( c->name, Name, sizeof( c->name ));
c->hash = Hash( c->name );
c->next = My_Channels;
+#ifndef STRICT_RFC
+ c->creation_time = time(NULL);
+#endif
My_Channels = c;
-
- Log( LOG_DEBUG, "Created new channel structure for \"%s\".", Name );
-
+ LogDebug("Created new channel structure for \"%s\".", Name);
return c;
} /* Channel_Create */
-LOCAL CL2CHAN *
+static CL2CHAN *
Get_Cl2Chan( CHANNEL *Chan, CLIENT *Client )
{
CL2CHAN *cl2chan;
} /* Get_Cl2Chan */
-LOCAL CL2CHAN *
+static CL2CHAN *
Add_Client( CHANNEL *Chan, CLIENT *Client )
{
CL2CHAN *cl2chan;
assert( Chan != NULL );
assert( Client != NULL );
- /* neue CL2CHAN-Struktur anlegen */
+ /* Create new CL2CHAN structure */
cl2chan = (CL2CHAN *)malloc( sizeof( CL2CHAN ));
if( ! cl2chan )
{
cl2chan->client = Client;
strcpy( cl2chan->modes, "" );
- /* Verketten */
+ /* concatenate */
cl2chan->next = My_Cl2Chan;
My_Cl2Chan = cl2chan;
- Log( LOG_DEBUG, "User \"%s\" joined channel \"%s\".", Client_Mask( Client ), Chan->name );
+ LogDebug("User \"%s\" joined channel \"%s\".", Client_Mask(Client), Chan->name);
return cl2chan;
} /* Add_Client */
-LOCAL bool
-Remove_Client( int Type, CHANNEL *Chan, CLIENT *Client, CLIENT *Origin, char *Reason, bool InformServer )
+static bool
+Remove_Client( int Type, CHANNEL *Chan, CLIENT *Client, CLIENT *Origin, const char *Reason, bool InformServer )
{
CL2CHAN *cl2chan, *last_cl2chan;
CHANNEL *c;
-
+
assert( Chan != NULL );
assert( Client != NULL );
assert( Origin != NULL );
assert( Reason != NULL );
+ /* Do not inform other servers if the channel is local to this server,
+ * regardless of what the caller requested! */
+ if(InformServer)
+ InformServer = !Channel_IsLocal(Chan);
+
last_cl2chan = NULL;
cl2chan = My_Cl2Chan;
while( cl2chan )
c = cl2chan->channel;
assert( c != NULL );
- /* Aus Verkettung loesen und freigeben */
+ /* maintain cl2chan list */
if( last_cl2chan ) last_cl2chan->next = cl2chan->next;
else My_Cl2Chan = cl2chan->next;
free( cl2chan );
switch( Type )
{
case REMOVE_QUIT:
- /* QUIT: andere Server wurden bereits informiert, vgl. Client_Destroy();
- * hier also "nur" noch alle User in betroffenen Channeln infomieren */
+ /* QUIT: other servers have already been notified,
+ * see Client_Destroy(); so only inform other clients
+ * in same channel. */
assert( InformServer == false );
- Log( LOG_DEBUG, "User \"%s\" left channel \"%s\" (%s).", Client_Mask( Client ), c->name, Reason );
+ LogDebug("User \"%s\" left channel \"%s\" (%s).",
+ Client_Mask( Client ), c->name, Reason );
break;
case REMOVE_KICK:
- /* User wurde geKICKed: ggf. andere Server sowie alle betroffenen User
- * im entsprechenden Channel informieren */
- 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 );
- Log( LOG_DEBUG, "User \"%s\" has been kicked of \"%s\" by \"%s\": %s.", Client_Mask( Client ), c->name, Client_ID( Origin ), Reason );
+ /* User was KICKed: inform other servers (public
+ * channels) and all users in the 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 );
- Log( LOG_DEBUG, "User \"%s\" left channel \"%s\" (%s).", Client_Mask( Client ), c->name, Reason );
+ default: /* PART */
+ if (Conf_MorePrivacy)
+ Reason = "";
+
+ 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);
+ }
}
- /* Wenn Channel nun leer und nicht pre-defined: loeschen */
- if( ! strchr( Channel_Modes( Chan ), 'P' ))
+ /* When channel is empty and is not pre-defined, delete */
+ if( ! Channel_HasMode( Chan, 'P' ))
{
if( ! Get_First_Cl2Chan( NULL, Chan )) Delete_Channel( Chan );
}
-
+
return true;
} /* Remove_Client */
-LOCAL CL2CHAN *
+GLOBAL bool
+Channel_AddBan(CHANNEL *c, const char *mask )
+{
+ struct list_head *h = Channel_GetListBans(c);
+ LogDebug("Adding \"%s\" to \"%s\" ban list", mask, Channel_Name(c));
+ return Lists_Add(h, mask, false, NULL);
+}
+
+
+GLOBAL bool
+Channel_AddExcept(CHANNEL *c, const char *mask )
+{
+ struct list_head *h = Channel_GetListExcepts(c);
+ LogDebug("Adding \"%s\" to \"%s\" exception list", mask, Channel_Name(c));
+ return Lists_Add(h, mask, false, NULL);
+}
+
+
+GLOBAL bool
+Channel_AddInvite(CHANNEL *c, const char *mask, bool onlyonce)
+{
+ struct list_head *h = Channel_GetListInvites(c);
+ LogDebug("Adding \"%s\" to \"%s\" invite list", mask, Channel_Name(c));
+ return Lists_Add(h, mask, onlyonce, NULL);
+}
+
+
+static bool
+ShowChannelList(struct list_head *head, CLIENT *Client, CHANNEL *Channel,
+ char *msg, char *msg_end)
+{
+ struct list_elem *e;
+
+ 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);
+ }
+
+ 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 ShowChannelList(h, Client, Channel, RPL_BANLIST_MSG,
+ RPL_ENDOFBANLIST_MSG);
+}
+
+
+GLOBAL bool
+Channel_ShowExcepts( CLIENT *Client, CHANNEL *Channel )
+{
+ struct list_head *h;
+
+ assert( Channel != NULL );
+
+ h = Channel_GetListExcepts(Channel);
+ return ShowChannelList(h, Client, Channel, RPL_EXCEPTLIST_MSG,
+ RPL_ENDOFEXCEPTLIST_MSG);
+}
+
+
+GLOBAL bool
+Channel_ShowInvites( CLIENT *Client, CHANNEL *Channel )
+{
+ struct list_head *h;
+
+ assert( Channel != NULL );
+
+ h = Channel_GetListInvites(Channel);
+ return ShowChannelList(h, Client, Channel, RPL_INVITELIST_MSG,
+ RPL_ENDOFINVITELIST_MSG);
+}
+
+
+/**
+ * Log a message to the local &SERVER channel, if it exists.
+ */
+GLOBAL void
+Channel_LogServer(const char *msg)
+{
+ CHANNEL *sc;
+ CLIENT *c;
+
+ assert(msg != NULL);
+
+ sc = Channel_Search("&SERVER");
+ if (!sc)
+ return;
+
+ c = Client_ThisServer();
+ Channel_Write(sc, c, c, "PRIVMSG", false, msg);
+} /* Channel_LogServer */
+
+
+GLOBAL bool
+Channel_CheckKey(CHANNEL *Chan, CLIENT *Client, const char *Key)
+{
+ char *file_name, line[COMMAND_LEN], *nick, *pass;
+ FILE *fd;
+
+ assert(Chan != NULL);
+ assert(Client != NULL);
+ assert(Key != NULL);
+
+ if (!Channel_HasMode(Chan, 'k'))
+ return true;
+ if (*Key == '\0')
+ return false;
+ if (strcmp(Chan->key, Key) == 0)
+ return true;
+
+ file_name = array_start(&Chan->keyfile);
+ if (!file_name)
+ return false;
+ fd = fopen(file_name, "r");
+ if (!fd) {
+ Log(LOG_ERR, "Can't open channel key file \"%s\" for %s: %s",
+ file_name, Chan->name, strerror(errno));
+ return false;
+ }
+
+ while (fgets(line, (int)sizeof(line), fd) != NULL) {
+ ngt_TrimStr(line);
+ if (! (nick = strchr(line, ':')))
+ continue;
+ *nick++ = '\0';
+ if (!Match(line, Client_User(Client)))
+ continue;
+ if (! (pass = strchr(nick, ':')))
+ continue;
+ *pass++ = '\0';
+ if (!Match(nick, Client_ID(Client)))
+ continue;
+ if (strcmp(Key, pass) != 0)
+ continue;
+
+ fclose(fd);
+ return true;
+ }
+ fclose(fd);
+ return false;
+} /* Channel_CheckKey */
+
+
+static CL2CHAN *
Get_First_Cl2Chan( CLIENT *Client, CHANNEL *Chan )
{
return Get_Next_Cl2Chan( My_Cl2Chan, Client, Chan );
} /* Get_First_Cl2Chan */
-LOCAL CL2CHAN *
+static CL2CHAN *
Get_Next_Cl2Chan( CL2CHAN *Start, CLIENT *Client, CHANNEL *Channel )
{
CL2CHAN *cl2chan;
assert( Client != NULL || Channel != NULL );
-
+
cl2chan = Start;
while( cl2chan )
{
} /* Get_Next_Cl2Chan */
-LOCAL bool
-Delete_Channel( CHANNEL *Chan )
+/**
+ * Remove a channel and free all of its data structures.
+ */
+static void
+Delete_Channel(CHANNEL *Chan)
{
- /* Channel-Struktur loeschen */
-
CHANNEL *chan, *last_chan;
last_chan = NULL;
chan = My_Channels;
- while( chan )
- {
- if( chan == Chan ) break;
+ while (chan) {
+ if (chan == Chan)
+ break;
last_chan = chan;
chan = chan->next;
}
- if( ! chan ) return false;
- Log( LOG_DEBUG, "Freed channel structure for \"%s\".", Chan->name );
+ assert(chan != NULL);
+ if (!chan)
+ return;
- /* Invite- und Ban-Lists aufraeumen */
- Lists_DeleteChannel( chan );
+ /* maintain channel list */
+ if (last_chan)
+ last_chan->next = chan->next;
+ else
+ My_Channels = chan->next;
- /* Neu verketten und freigeben */
- if( last_chan ) last_chan->next = chan->next;
- else My_Channels = chan->next;
- free( chan );
-
- return true;
+ LogDebug("Freed channel structure for \"%s\".", Chan->name);
+ Free_Channel(Chan);
} /* Delete_Channel */
+static void
+Set_KeyFile(CHANNEL *Chan, const char *KeyFile)
+{
+ size_t len;
+
+ assert(Chan != NULL);
+ assert(KeyFile != NULL);
+
+ len = strlen(KeyFile);
+ if (len < array_bytes(&Chan->keyfile)) {
+ Log(LOG_INFO, "Channel key file of %s removed.", Chan->name);
+ array_free(&Chan->keyfile);
+ }
+
+ if (len < 1)
+ return;
+
+ if (!array_copyb(&Chan->keyfile, KeyFile, len+1))
+ Log(LOG_WARNING,
+ "Could not set new channel key file \"%s\" for %s: %s",
+ KeyFile, Chan->name, strerror(errno));
+ else
+ Log(LOG_INFO|LOG_snotice,
+ "New local channel key file \"%s\" for %s activated.",
+ KeyFile, Chan->name);
+} /* Set_KeyFile */
+
+
/* -eof- */
projects / ngircd-alex.git / blobdiff