/********************************************************************\
* BitlBee -- An IRC to other IM-networks gateway *
* *
* Copyright 2002-2004 Wilmer van der Gaast and others *
\********************************************************************/
/* The big hairy IRCd part of the project */
/*
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.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License with
the Debian GNU/Linux distribution in /usr/share/common-licenses/GPL;
if not, write to the Free Software Foundation, Inc., 59 Temple Place,
Suite 330, Boston, MA 02111-1307 USA
*/
#define BITLBEE_CORE
#include "bitlbee.h"
#include "crypting.h"
static gboolean irc_userping( gpointer _irc );
GSList *irc_connection_list = NULL;
irc_t *irc_new( int fd )
{
irc_t *irc = g_new0( irc_t, 1 );
struct sockaddr_in sock[1];
#ifdef IPV6
struct sockaddr_in6 sock6[1];
#endif
struct hostent *peer;
unsigned int i, j;
irc->fd = fd;
irc->io_channel = g_io_channel_unix_new( fd );
#ifdef GLIB2
g_io_channel_set_encoding (irc->io_channel, NULL, NULL);
g_io_channel_set_buffered (irc->io_channel, FALSE);
g_io_channel_set_flags( irc->io_channel, G_IO_FLAG_NONBLOCK, NULL );
#else
fcntl( irc->fd, F_SETFL, O_NONBLOCK);
#endif
irc->r_watch_source_id = g_io_add_watch( irc->io_channel, G_IO_IN | G_IO_ERR | G_IO_HUP, bitlbee_io_current_client_read, irc );
irc->status = USTATUS_OFFLINE;
irc->last_pong = gettime();
irc->userhash = g_hash_table_new( g_str_hash, g_str_equal );
irc->watches = g_hash_table_new( g_str_hash, g_str_equal );
strcpy( irc->umode, UMODE );
irc->mynick = g_strdup( ROOT_NICK );
irc->channel = g_strdup( ROOT_CHAN );
i = sizeof( *sock );
#ifdef IPV6
j = sizeof( *sock6 );
#endif
if( global.conf->hostname )
irc->myhost = g_strdup( global.conf->hostname );
else if( getsockname( irc->fd, (struct sockaddr*) sock, &i ) == 0 && sock->sin_family == AF_INET )
{
if( ( peer = gethostbyaddr( (char*) &sock->sin_addr, sizeof( sock->sin_addr ), AF_INET ) ) )
irc->myhost = g_strdup( peer->h_name );
}
#ifdef IPV6
else if( getsockname( irc->fd, (struct sockaddr*) sock6, &j ) == 0 && sock6->sin6_family == AF_INET6 )
{
if( ( peer = gethostbyaddr( (char*) &sock6->sin6_addr, sizeof( sock6->sin6_addr ), AF_INET6 ) ) )
irc->myhost = g_strdup( peer->h_name );
}
#endif
i = sizeof( *sock );
#ifdef IPV6
j = sizeof( *sock6 );
#endif
if( getpeername( irc->fd, (struct sockaddr*) sock, &i ) == 0 && sock->sin_family == AF_INET )
{
if( ( peer = gethostbyaddr( (char*) &sock->sin_addr, sizeof( sock->sin_addr ), AF_INET ) ) )
irc->host = g_strdup( peer->h_name );
}
#ifdef IPV6
else if( getpeername( irc->fd, (struct sockaddr*) sock6, &j ) == 0 && sock6->sin6_family == AF_INET6 )
{
if( ( peer = gethostbyaddr( (char*) &sock6->sin6_addr, sizeof( sock6->sin6_addr ), AF_INET6 ) ) )
irc->host = g_strdup( peer->h_name );
}
#endif
if( !irc->host ) irc->host = g_strdup( "localhost." );
if( !irc->myhost ) irc->myhost = g_strdup( "localhost." );
if( global.conf->ping_interval > 0 && global.conf->ping_timeout > 0 )
irc->ping_source_id = g_timeout_add( global.conf->ping_interval * 1000, irc_userping, irc );
irc_write( irc, ":%s NOTICE AUTH :%s", irc->myhost, "BitlBee-IRCd initialized, please go on" );
irc_connection_list = g_slist_append( irc_connection_list, irc );
set_add( irc, "away_devoice", "true", set_eval_away_devoice );
set_add( irc, "auto_connect", "true", set_eval_bool );
set_add( irc, "auto_reconnect", "false", set_eval_bool );
set_add( irc, "auto_reconnect_delay", "300", set_eval_int );
set_add( irc, "buddy_sendbuffer", "false", set_eval_bool );
set_add( irc, "buddy_sendbuffer_delay", "200", set_eval_int );
set_add( irc, "charset", "iso8859-1", set_eval_charset );
set_add( irc, "debug", "false", set_eval_bool );
set_add( irc, "default_target", "root", NULL );
set_add( irc, "display_namechanges", "false", set_eval_bool );
set_add( irc, "handle_unknown", "root", NULL );
set_add( irc, "lcnicks", "true", set_eval_bool );
set_add( irc, "ops", "both", set_eval_ops );
set_add( irc, "private", "true", set_eval_bool );
set_add( irc, "query_order", "lifo", NULL );
set_add( irc, "save_on_quit", "true", set_eval_bool );
set_add( irc, "strip_html", "true", NULL );
set_add( irc, "to_char", ": ", set_eval_to_char );
set_add( irc, "typing_notice", "false", set_eval_bool );
conf_loaddefaults( irc );
return( irc );
}
static gboolean irc_free_hashkey( gpointer key, gpointer value, gpointer data )
{
g_free( key );
return( TRUE );
}
/* Because we have no garbage collection, this is quite annoying */
void irc_free(irc_t * irc)
{
account_t *account;
user_t *user, *usertmp;
nick_t *nick, *nicktmp;
help_t *helpnode, *helpnodetmp;
set_t *setnode, *setnodetmp;
log_message( LOGLVL_INFO, "Destroying connection with fd %d", irc->fd );
if( irc->status >= USTATUS_IDENTIFIED && set_getint( irc, "save_on_quit" ) )
if( !bitlbee_save( irc ) )
irc_usermsg( irc, "Error while saving settings!" );
if( irc->ping_source_id > 0 )
g_source_remove( irc->ping_source_id );
g_source_remove( irc->r_watch_source_id );
if( irc->w_watch_source_id > 0 )
g_source_remove( irc->w_watch_source_id );
g_io_channel_unref( irc->io_channel );
irc_connection_list = g_slist_remove( irc_connection_list, irc );
for (account = irc->accounts; account; account = account->next) {
if (account->gc)
account_offline(account->gc);
else if (account->reconnect)
cancel_auto_reconnect(account);
}
g_free(irc->sendbuffer);
g_free(irc->readbuffer);
g_free(irc->nick);
g_free(irc->user);
g_free(irc->host);
g_free(irc->realname);
g_free(irc->password);
g_free(irc->myhost);
g_free(irc->mynick);
g_free(irc->channel);
while (irc->queries != NULL)
query_del(irc, irc->queries);
while (irc->accounts)
if (irc->accounts->gc == NULL)
account_del(irc, irc->accounts);
else
/* Nasty hack, but account_del() doesn't work in this
case and we don't want infinite loops, do we? ;-) */
irc->accounts = irc->accounts->next;
if (irc->users != NULL) {
user = irc->users;
while (user != NULL) {
g_free(user->nick);
g_free(user->away);
g_free(user->handle);
if(user->user!=user->nick) g_free(user->user);
if(user->host!=user->nick) g_free(user->host);
if(user->realname!=user->nick) g_free(user->realname);
gaim_input_remove(user->sendbuf_timer);
usertmp = user;
user = user->next;
g_free(usertmp);
}
}
g_hash_table_foreach_remove(irc->userhash, irc_free_hashkey, NULL);
g_hash_table_destroy(irc->userhash);
g_hash_table_foreach_remove(irc->watches, irc_free_hashkey, NULL);
g_hash_table_destroy(irc->watches);
if (irc->nicks != NULL) {
nick = irc->nicks;
while (nick != NULL) {
g_free(nick->nick);
g_free(nick->handle);
nicktmp = nick;
nick = nick->next;
g_free(nicktmp);
}
}
if (irc->help != NULL) {
helpnode = irc->help;
while (helpnode != NULL) {
g_free(helpnode->string);
helpnodetmp = helpnode;
helpnode = helpnode->next;
g_free(helpnodetmp);
}
}
if (irc->set != NULL) {
setnode = irc->set;
while (setnode != NULL) {
g_free(setnode->key);
g_free(setnode->def);
g_free(setnode->value);
setnodetmp = setnode;
setnode = setnode->next;
g_free(setnodetmp);
}
}
g_free(irc);
if( global.conf->runmode == RUNMODE_INETD )
g_main_quit( global.loop );
}
int irc_process( irc_t *irc )
{
char **lines, *temp, *cs;
int i;
if( irc->readbuffer != NULL ) {
lines = irc_tokenize(irc->readbuffer );
for( i = 0; *lines[i] != '\0'; i++ ) {
char conv[IRC_MAX_LINE+1];
if( lines[i+1] == NULL ) {
temp = g_strdup( lines[i] );
g_free( irc->readbuffer );
irc->readbuffer = temp;
i++;
break;
}
if( ( cs = set_getstr( irc, "charset" ) ) && ( g_strcasecmp( cs, "utf-8" ) != 0 ) )
{
conv[IRC_MAX_LINE] = 0;
if( do_iconv( cs, "UTF-8", lines[i], conv, 0, IRC_MAX_LINE - 2 ) != -1 )
lines[i] = conv;
}
if (!irc_process_line(irc, lines[i])) {
g_free( lines );
return 0;
}
}
if(lines[i]!=NULL) {
g_free(irc->readbuffer);
irc->readbuffer=NULL;
}
g_free( lines );
}
return 1;
}
char **irc_tokenize( char *buffer )
{
int i, j;
char **lines;
/* Count the number of elements we're gonna need. */
for(i=0, j=1; buffer[i]!='\0'; i++ ) {
if(buffer[i]=='\n' )
if(buffer[i+1]!='\r' && buffer[i+1]!='\n')
j++;
}
/* Allocate j+1 elements. */
lines=g_new (char *, j+1);
/* NULL terminate our list. */
lines[j]=NULL;
lines[0]=buffer;
/* Split the buffer in several strings, using \r\n as our seperator, where \r is optional.
* Although this is not in the RFC, some braindead ircds (newnet's) use this, so some clients might too.
*/
for( i=0, j=0; buffer[i]!='\0'; i++) {
if(buffer[i]=='\n') {
buffer[i]='\0';
/* We dont want to read 1 byte before our buffer
* and (in rare cases) generate a SIGSEGV.
*/
if(i!=0)
if(buffer[i-1]=='\r')
buffer[i-1]='\0';
if(buffer[i+1]!='\r'&&buffer[i+1]!='\n')
lines[++j]=buffer+i+1;
}
}
return(lines);
}
int irc_process_line( irc_t *irc, char *line )
{
int i, j;
char **cmd;
/* Move the line pointer to the start of the command, skipping spaces and the optional prefix. */
if(line[0]==':') {
for(i=0; line[i]!=32; i++);
line=line+i;
}
for(i=0; line[i]==32; i++);
line=line+i;
/* If we're already at the end of the line, return. If not, we're going to need at least one element. */
if(line[0]=='\0')
return 1;
else
j=1;
/* Count the number of char **cmd elements we're going to need. */
for(i=0; line[i]!='\0'; i++) {
if((line[i]==32) && (line[i+1]!=32) && (line[i+1]!='\0') && (line[i+1]!=':'))
j++;
else if((line[i]==':') && (line[i+1]!='\0') && (line[i-1]==32)) {
j++;
break;
}
}
/* Allocate the space we need. */
cmd=g_new(char *, j+1);
cmd[j]=NULL;
/* Do the actual line splitting, format is:
* Input: "PRIVMSG #bitlbee :foo bar"
* Output: cmd[0]=="PRIVMSG", cmd[1]=="#bitlbee", cmd[2]=="foo bar", cmd[3]==NULL
*/
cmd[0]=line;
for(i=0, j=0; line[i]!='\0'; i++) {
if((line[i]==32)) {
line[i]='\0';
if((line[i+1]!=32) && (line[i+1]!='\0') && (line[i+1]!=':'))
cmd[++j]=line+i+1;
}
else if((line[i]==':') && (line[i+1]!='\0') && (line[i-1]=='\0')) {
cmd[++j]=line+i+1;
break;
}
}
i=irc_exec(irc, cmd);
g_free(cmd);
return(i);
}
int irc_exec( irc_t *irc, char **cmd )
{
int i;
if( (global.conf)->authmode == AUTHMODE_CLOSED && irc->status < USTATUS_AUTHORIZED )
{
if( g_strcasecmp( cmd[0], "PASS" ) == 0 )
{
if( !cmd[1] )
{
irc_reply( irc, 461, "%s :Need more parameters", cmd[0] );
}
else if( strcmp( cmd[1], (global.conf)->password ) == 0 )
{
irc->status = USTATUS_AUTHORIZED;
}
else
{
irc_reply( irc, 464, ":Nope, maybe you should try it again..." );
}
}
else
{
irc_reply( irc, 464, ":Uhh, fine, but I want the password first." );
}
return( 1 );
}
if( g_strcasecmp( cmd[0], "USER" ) == 0 )
{
if( !( cmd[1] && cmd[2] && cmd[3] && cmd[4] ) )
{
irc_reply( irc, 461, "%s :Need more parameters", cmd[0] );
}
else if( irc->user )
{
irc_reply( irc, 462, ":You can't change your nick/userinfo" );
}
else
{
irc->user = g_strdup( cmd[1] );
irc->realname = g_strdup( cmd[4] );
if( irc->nick ) irc_login( irc );
}
return( 1 );
}
else if( g_strcasecmp( cmd[0], "NICK" ) == 0 )
{
if( !cmd[1] )
{
irc_reply( irc, 461, "%s :Need more parameters", cmd[0] );
}
else if( irc->nick )
{
irc_reply( irc, 438, ":The hand of the deity is upon thee, thy nick may not change" );
}
/* This is not clean, but for now it'll have to be like this... */
else if( ( nick_cmp( cmd[1], irc->mynick ) == 0 ) || ( nick_cmp( cmd[1], NS_NICK ) == 0 ) )
{
irc_reply( irc, 433, ":This nick is already in use" );
}
else if( !nick_ok( cmd[1] ) )
{
/* [SH] Invalid characters. */
irc_reply( irc, 432, ":This nick contains invalid characters" );
}
else
{
irc->nick = g_strdup( cmd[1] );
if( irc->user ) irc_login( irc );
}
return( 1 );
}
else if( g_strcasecmp( cmd[0], "QUIT" ) == 0 )
{
irc_write( irc, "ERROR :%s%s", cmd[1]?"Quit: ":"", cmd[1]?cmd[1]:"Client Quit" );
g_io_channel_close( irc->io_channel );
return( 0 );
}
if( !irc->user || !irc->nick )
{
irc_reply( irc, 451, ":Register first" );
return( 1 );
}
if( g_strcasecmp( cmd[0], "PING" ) == 0 )
{
irc_write( irc, ":%s PONG %s :%s", irc->myhost, irc->myhost, cmd[1]?cmd[1]:irc->myhost );
}
else if( g_strcasecmp( cmd[0], "MODE" ) == 0 )
{
if( !cmd[1] )
{
irc_reply( irc, 461, "%s :Need more parameters", cmd[0] );
}
else if( *cmd[1] == '#' || *cmd[1] == '&' )
{
if( cmd[2] )
{
if( *cmd[2] == '+' || *cmd[2] == '-' )
irc_reply( irc, 477, "%s :Can't change channel modes", cmd[1] );
else if( *cmd[2] == 'b' )
irc_reply( irc, 368, "%s :No bans possible", cmd[1] );
}
else
irc_reply( irc, 324, "%s +%s", cmd[1], CMODE );
}
else
{
if( nick_cmp( cmd[1], irc->nick ) == 0 )
{
if( cmd[2] )
irc_umode_set( irc, irc->nick, cmd[2] );
}
else
irc_reply( irc, 502, ":Don't touch their modes" );
}
}
else if( g_strcasecmp( cmd[0], "NAMES" ) == 0 )
{
irc_names( irc, cmd[1]?cmd[1]:irc->channel );
}
else if( g_strcasecmp( cmd[0], "PART" ) == 0 )
{
struct conversation *c;
if( !cmd[1] )
{
irc_reply( irc, 461, "%s :Need more parameters", cmd[0] );
}
else if( g_strcasecmp( cmd[1], irc->channel ) == 0 )
{
user_t *u = user_find( irc, irc->nick );
/* Not allowed to leave control channel */
irc_part( irc, u, irc->channel );
irc_join( irc, u, irc->channel );
}
else if( ( c = conv_findchannel( cmd[1] ) ) )
{
user_t *u = user_find( irc, irc->nick );
irc_part( irc, u, c->channel );
if( c->gc && c->gc->prpl )
{
c->joined = 0;
c->gc->prpl->chat_leave( c->gc, c->id );
}
}
else
{
irc_reply( irc, 403, "%s :No such channel", cmd[1] );
}
}
else if( g_strcasecmp( cmd[0], "JOIN" ) == 0 )
{
if( !cmd[1] )
{
irc_reply( irc, 461, "%s :Need more parameters", cmd[0] );
}
else if( g_strcasecmp( cmd[1], irc->channel ) == 0 )
; /* Dude, you're already there...
RFC doesn't have any reply for that though? */
else if( cmd[1] )
{
if( ( cmd[1][0] == '#' || cmd[1][0] == '&' ) && cmd[1][1] )
{
user_t *u = user_find( irc, cmd[1] + 1 );
if( u && u->gc && u->gc->prpl && u->gc->prpl->chat_open )
{
irc_reply( irc, 403, "%s :Initializing groupchat in a different channel", cmd[1] );
if( !u->gc->prpl->chat_open( u->gc, u->handle ) )
{
irc_usermsg( irc, "Could not open a groupchat with %s.", u->nick );
}
}
else
{
irc_reply( irc, 403, "%s :Groupchats are not possible with %s", cmd[1], cmd[1]+1 );
}
}
else
{
irc_reply( irc, 403, "%s :No such channel", cmd[1] );
}
}
}
else if( g_strcasecmp( cmd[0], "INVITE" ) == 0 )
{
if( cmd[1] && cmd[2] )
irc_invite( irc, cmd[1], cmd[2] );
else
irc_reply( irc, 461, "%s :Need more parameters", cmd[0] );
}
else if( g_strcasecmp( cmd[0], "PRIVMSG" ) == 0 || g_strcasecmp( cmd[0], "NOTICE" ) == 0 )
{
if( !cmd[1] )
{
irc_reply( irc, 461, "%s :Need more parameters", cmd[0] );
}
else if ( !cmd[2] )
{
irc_reply( irc, 412, ":No text to send" );
}
else if ( irc->nick && g_strcasecmp( cmd[1], irc->nick ) == 0 )
{
irc_write( irc, ":%s!%s@%s %s %s :%s", irc->nick, irc->user, irc->host, cmd[0], cmd[1], cmd[2] );
}
else
{
if( g_strcasecmp( cmd[1], irc->channel ) == 0 )
{
unsigned int i;
char *t = set_getstr( irc, "default_target" );
if( g_strcasecmp( t, "last" ) == 0 && irc->last_target )
cmd[1] = irc->last_target;
else if( g_strcasecmp( t, "root" ) == 0 )
cmd[1] = irc->mynick;
for( i = 0; i < strlen( cmd[2] ); i ++ )
{
if( cmd[2][i] == ' ' ) break;
if( cmd[2][i] == ':' || cmd[2][i] == ',' )
{
cmd[1] = cmd[2];
cmd[2] += i;
*cmd[2] = 0;
while( *(++cmd[2]) == ' ' );
break;
}
}
irc->is_private = 0;
if( cmd[1] != irc->last_target )
{
if( irc->last_target )
g_free( irc->last_target );
irc->last_target = g_strdup( cmd[1] );
}
}
else
{
irc->is_private = 1;
}
irc_send( irc, cmd[1], cmd[2], ( g_strcasecmp( cmd[0], "NOTICE" ) == 0 ) ? IM_FLAG_AWAY : 0 );
}
}
else if( g_strcasecmp( cmd[0], "WHO" ) == 0 )
{
irc_who( irc, cmd[1] );
}
else if( g_strcasecmp( cmd[0], "USERHOST" ) == 0 )
{
user_t *u;
if( !cmd[1] )
{
irc_reply( irc, 461, "%s :Need more parameters", cmd[0] );
}
/* [TV] Usable USERHOST-implementation according to
RFC1459. Without this, mIRC shows an error
while connecting, and the used way of rejecting
breaks standards.
*/
for( i = 1; cmd[i]; i ++ )
if( ( u = user_find( irc, cmd[i] ) ) )
{
if( u->online && u->away )
irc_reply( irc, 302, ":%s=-%s@%s", u->nick, u->user, u->host );
else
irc_reply( irc, 302, ":%s=+%s@%s", u->nick, u->user, u->host );
}
}
else if( g_strcasecmp( cmd[0], "ISON" ) == 0 )
{
user_t *u;
char buff[IRC_MAX_LINE];
int lenleft, i;
buff[0] = '\0';
/* [SH] Leave room for : and \0 */
lenleft = IRC_MAX_LINE - 2;
for( i = 1; cmd[i]; i ++ )
{
char *this, *next;
this = cmd[i];
while( *this )
{
if( ( next = strchr( this, ' ' ) ) )
*next = 0;
if( ( u = user_find( irc, this ) ) && u->online )
{
lenleft -= strlen( u->nick ) + 1;
if( lenleft < 0 )
break;
strcat( buff, u->nick );
strcat( buff, " " );
}
if( next )
{
*next = ' ';
this = next + 1;
}
else
{
break;
}
}
/* *sigh* */
if( lenleft < 0 )
break;
}
if( strlen( buff ) > 0 )
buff[strlen(buff)-1] = '\0';
irc_reply( irc, 303, ":%s", buff );
}
else if( g_strcasecmp( cmd[0], "WATCH" ) == 0 )
{
/* Obviously we could also mark a user structure as being
watched, but what if the WATCH command is sent right
after connecting? The user won't exist yet then... */
for( i = 1; cmd[i]; i ++ )
{
char *nick;
user_t *u;
if( !cmd[i][0] || !cmd[i][1] )
break;
nick = g_strdup( cmd[i] + 1 );
nick_lc( nick );
u = user_find( irc, nick );
if( cmd[i][0] == '+' )
{
if( !g_hash_table_lookup( irc->watches, nick ) )
g_hash_table_insert( irc->watches, nick, nick );
if( u && u->online )
irc_reply( irc, 604, "%s %s %s %d :%s", u->nick, u->user, u->host, time( NULL ), "is online" );
else
irc_reply( irc, 605, "%s %s %s %d :%s", nick, "*", "*", time( NULL ), "is offline" );
}
else if( cmd[i][0] == '-' )
{
gpointer okey, ovalue;
if( g_hash_table_lookup_extended( irc->watches, nick, &okey, &ovalue ) )
{
g_free( okey );
g_hash_table_remove( irc->watches, okey );
irc_reply( irc, 602, "%s %s %s %d :%s", nick, "*", "*", 0, "Stopped watching" );
}
}
}
}
else if( g_strcasecmp( cmd[0], "TOPIC" ) == 0 )
{
if( cmd[1] && cmd[2] )
irc_reply( irc, 482, "%s :Cannot change topic", cmd[1] );
else if( cmd[1] )
irc_topic( irc, cmd[1] );
else
irc_reply( irc, 461, "%s :Need more parameters", cmd[0] );
}
else if( g_strcasecmp( cmd[0], "AWAY" ) == 0 )
{
irc_away( irc, cmd[1] );
}
else if( g_strcasecmp( cmd[0], "WHOIS" ) == 0 )
{
if( cmd[1] )
{
irc_whois( irc, cmd[1] );
}
else
{
irc_reply( irc, 461, "%s :Need more parameters", cmd[0] );
}
}
else if( g_strcasecmp( cmd[0], "WHOWAS" ) == 0 )
{
/* For some reason irssi tries a whowas when whois fails. We can
ignore this, but then the user never gets a "user not found"
message from irssi which is a bit annoying. So just respond
with not-found and irssi users will get better error messages */
if( cmd[1] )
{
irc_reply( irc, 406, "%s :Nick does not exist", cmd[1] );
irc_reply( irc, 369, "%s :End of WHOWAS", cmd[1] );
}
else
{
irc_reply( irc, 461, "%s :Need more parameters", cmd[0] );
}
}
else if( ( g_strcasecmp( cmd[0], "NICKSERV" ) == 0 ) || ( g_strcasecmp( cmd[0], "NS" ) == 0 ) )
{
/* [SH] This aliases the NickServ command to PRIVMSG root */
/* [TV] This aliases the NS command to PRIVMSG root as well */
root_command( irc, cmd + 1 );
}
else if( g_strcasecmp( cmd[0], "MOTD" ) == 0 )
{
irc_motd( irc );
}
else if( g_strcasecmp( cmd[0], "PONG" ) == 0 )
{
/* We could check the value we get back from the user, but in
fact we don't care, we're just happy he's still alive. */
irc->last_pong = gettime();
irc->pinging = 0;
}
else if( g_strcasecmp( cmd[0], "COMPLETIONS" ) == 0 )
{
user_t *u = user_find( irc, irc->mynick );
help_t *h;
set_t *s;
int i;
irc_privmsg( irc, u, "NOTICE", irc->nick, "COMPLETIONS ", "OK" );
for( i = 0; commands[i].command; i ++ )
irc_privmsg( irc, u, "NOTICE", irc->nick, "COMPLETIONS ", commands[i].command );
for( h = global.help; h; h = h->next )
irc_privmsg( irc, u, "NOTICE", irc->nick, "COMPLETIONS help ", h->string );
for( s = irc->set; s; s = s->next )
irc_privmsg( irc, u, "NOTICE", irc->nick, "COMPLETIONS set ", s->key );
irc_privmsg( irc, u, "NOTICE", irc->nick, "COMPLETIONS ", "END" );
}
else if( set_getint( irc, "debug" ) )
{
irc_usermsg( irc, "\002--- Unknown command:" );
for( i = 0; cmd[i]; i ++ ) irc_usermsg( irc, "%s", cmd[i] );
irc_usermsg( irc, "\002--------------------" );
}
return( 1 );
}
void irc_reply( irc_t *irc, int code, char *format, ... )
{
char text[IRC_MAX_LINE];
va_list params;
va_start( params, format );
g_vsnprintf( text, IRC_MAX_LINE, format, params );
va_end( params );
irc_write( irc, ":%s %03d %s %s", irc->myhost, code, irc->nick?irc->nick:"*", text );
return;
}
int irc_usermsg( irc_t *irc, char *format, ... )
{
char text[1024];
va_list params;
char is_private = 0;
user_t *u;
u = user_find( irc, irc->mynick );
is_private = u->is_private;
va_start( params, format );
g_vsnprintf( text, sizeof( text ), format, params );
va_end( params );
return( irc_msgfrom( irc, u->nick, text ) );
}
void irc_write( irc_t *irc, char *format, ... )
{
va_list params;
va_start( params, format );
irc_vawrite( irc, format, params );
va_end( params );
return;
}
void irc_vawrite( irc_t *irc, char *format, va_list params )
{
int size;
char line[IRC_MAX_LINE+1], *cs;
if( irc->quit )
return;
line[IRC_MAX_LINE] = 0;
g_vsnprintf( line, IRC_MAX_LINE - 2, format, params );
strip_newlines( line );
if( ( cs = set_getstr( irc, "charset" ) ) && ( g_strcasecmp( cs, "utf-8" ) != 0 ) )
{
char conv[IRC_MAX_LINE+1];
conv[IRC_MAX_LINE] = 0;
if( do_iconv( "UTF-8", cs, line, conv, 0, IRC_MAX_LINE - 2 ) != -1 )
strcpy( line, conv );
}
strcat( line, "\r\n" );
if( irc->sendbuffer != NULL ) {
size = strlen( irc->sendbuffer ) + strlen( line );
irc->sendbuffer = g_renew ( char, irc->sendbuffer, size + 1 );
strcpy( ( irc->sendbuffer + strlen( irc->sendbuffer ) ), line );
}
else
irc->sendbuffer = g_strdup(line);
if( irc->w_watch_source_id == 0 )
{
irc->w_watch_source_id = g_io_add_watch( irc->io_channel, G_IO_OUT, bitlbee_io_current_client_write, irc );
}
return;
}
void irc_write_all( int now, char *format, ... )
{
va_list params;
GSList *temp;
va_start( params, format );
temp = irc_connection_list;
while( temp != NULL )
{
irc_t *irc = temp->data;
if( now )
{
g_free( irc->sendbuffer );
irc->sendbuffer = g_strdup( "\r\n" );
}
irc_vawrite( temp->data, format, params );
if( now )
{
bitlbee_io_current_client_write( irc->io_channel, G_IO_OUT, irc );
}
temp = temp->next;
}
va_end( params );
return;
}
void irc_names( irc_t *irc, char *channel )
{
user_t *u = irc->users;
char *s;
int control = ( g_strcasecmp( channel, irc->channel ) == 0 );
struct conversation *c = NULL;
if( !control )
c = conv_findchannel( channel );
/* RFC's say there is no error reply allowed on NAMES, so when the
channel is invalid, just give an empty reply. */
if( control || c ) while( u )
{
if( u->online )
{
if( u->gc && control )
{
if( set_getint( irc, "away_devoice" ) && !u->away )
s = "+";
else
s = "";
irc_reply( irc, 353, "@ %s :%s%s", channel, s, u->nick );
}
else if( !u->gc )
{
if( strcmp( u->nick, irc->mynick ) == 0 && ( strcmp( set_getstr( irc, "ops" ), "root" ) == 0 || strcmp( set_getstr( irc, "ops" ), "both" ) == 0 ) )
s = "@";
else if( strcmp( u->nick, irc->nick ) == 0 && ( strcmp( set_getstr( irc, "ops" ), "user" ) == 0 || strcmp( set_getstr( irc, "ops" ), "both" ) == 0 ) )
s = "@";
else
s = "";
irc_reply( irc, 353, "@ %s :%s%s", channel, s, u->nick );
}
}
u = u->next;
}
/* For non-controlchannel channels (group conversations) only root and
you are listed now. Time to show the channel people: */
if( !control && c )
{
GList *l;
for( l = c->in_room; l; l = l->next )
if( ( u = user_findhandle( c->gc, l->data ) ) )
irc_reply( irc, 353, "@ %s :%s%s", channel, "", u->nick );
}
irc_reply( irc, 366, "%s :End of /NAMES list", channel );
}
void irc_who( irc_t *irc, char *channel )
{
user_t *u = irc->users;
struct conversation *c;
GList *l;
if( !channel || *channel == '0' || *channel == '*' || !*channel )
while( u )
{
irc_reply( irc, 352, "%s %s %s %s %s %c :0 %s", u->online ? irc->channel : "*", u->user, u->host, irc->myhost, u->nick, u->online ? ( u->away ? 'G' : 'H' ) : 'G', u->realname );
u = u->next;
}
else if( g_strcasecmp( channel, irc->channel ) == 0 )
while( u )
{
if( u->online )
irc_reply( irc, 352, "%s %s %s %s %s %c :0 %s", channel, u->user, u->host, irc->myhost, u->nick, u->away ? 'G' : 'H', u->realname );
u = u->next;
}
else if( ( c = conv_findchannel( channel ) ) )
for( l = c->in_room; l; l = l->next )
{
if( ( u = user_findhandle( c->gc, l->data ) ) )
irc_reply( irc, 352, "%s %s %s %s %s %c :0 %s", channel, u->user, u->host, irc->myhost, u->nick, u->away ? 'G' : 'H', u->realname );
}
else if( ( u = user_find( irc, channel ) ) )
irc_reply( irc, 352, "%s %s %s %s %s %c :0 %s", channel, u->user, u->host, irc->myhost, u->nick, u->online ? ( u->away ? 'G' : 'H' ) : 'G', u->realname );
irc_reply( irc, 315, "%s :End of /WHO list.", channel?channel:"**" );
}
void irc_login( irc_t *irc )
{
user_t *u;
irc_reply( irc, 1, ":Welcome to the BitlBee gateway, %s", irc->nick );
irc_reply( irc, 2, ":Host %s is running BitlBee " BITLBEE_VERSION " " ARCH "/" CPU ".", irc->myhost );
irc_reply( irc, 3, ":%s", IRCD_INFO );
irc_reply( irc, 4, "%s %s %s %s", irc->myhost, BITLBEE_VERSION, UMODES, CMODES );
irc_reply( irc, 5, "PREFIX=(ov)@+ CHANTYPES=#& CHANMODES=,,,%s NICKLEN=%d NETWORK=BitlBee CASEMAPPING=rfc1459 MAXTARGETS=1 WATCH=128 :are supported by this server", CMODES, MAX_NICK_LENGTH - 1 );
irc_motd( irc );
irc_umode_set( irc, irc->myhost, "+" UMODE );
u = user_add( irc, irc->mynick );
u->host = g_strdup( irc->myhost );
u->realname = g_strdup( ROOT_FN );
u->online = 1;
u->send_handler = root_command_string;
u->is_private = 0; /* [SH] The channel is root's personal playground. */
irc_spawn( irc, u );
u = user_add( irc, NS_NICK );
u->host = g_strdup( irc->myhost );
u->realname = g_strdup( ROOT_FN );
u->online = 0;
u->send_handler = root_command_string;
u->is_private = 1; /* [SH] NickServ is not in the channel, so should always /query. */
u = user_add( irc, irc->nick );
u->user = g_strdup( irc->user );
u->host = g_strdup( irc->host );
u->realname = g_strdup( irc->realname );
u->online = 1;
// u->send_handler = msg_echo;
irc_spawn( irc, u );
irc_usermsg( irc, "Welcome to the BitlBee gateway!\n\nIf you've never used BitlBee before, please do read the help information using the \x02help\x02 command. Lots of FAQ's are answered there." );
irc->status = USTATUS_LOGGED_IN;
}
void irc_motd( irc_t *irc )
{
int fd;
fd = open( global.conf->motdfile, O_RDONLY );
if( fd == -1 )
{
irc_reply( irc, 422, ":We don't need MOTDs." );
}
else
{
char linebuf[80]; /* Max. line length for MOTD's is 79 chars. It's what most IRC networks seem to do. */
char *add, max;
int len;
linebuf[79] = len = 0;
max = sizeof( linebuf ) - 1;
irc_reply( irc, 375, ":- %s Message Of The Day - ", irc->myhost );
while( read( fd, linebuf + len, 1 ) == 1 )
{
if( linebuf[len] == '\n' || len == max )
{
linebuf[len] = 0;
irc_reply( irc, 372, ":- %s", linebuf );
len = 0;
}
else if( linebuf[len] == '%' )
{
read( fd, linebuf + len, 1 );
if( linebuf[len] == 'h' )
add = irc->myhost;
else if( linebuf[len] == 'v' )
add = BITLBEE_VERSION;
else if( linebuf[len] == 'n' )
add = irc->nick;
else
add = "%";
strncpy( linebuf + len, add, max - len );
while( linebuf[++len] );
}
else if( len < max )
{
len ++;
}
}
irc_reply( irc, 376, ":End of MOTD" );
close( fd );
}
}
void irc_topic( irc_t *irc, char *channel )
{
if( g_strcasecmp( channel, irc->channel ) == 0 )
{
irc_reply( irc, 332, "%s :%s", channel, CONTROL_TOPIC );
}
else
{
struct conversation *c = conv_findchannel( channel );
if( c )
irc_reply( irc, 332, "%s :BitlBee groupchat: \"%s\". Please keep in mind that root-commands won't work here. Have fun!", channel, c->title );
else
irc_reply( irc, 331, "%s :No topic for this channel" );
}
}
void irc_whois( irc_t *irc, char *nick )
{
user_t *u = user_find( irc, nick );
if( u )
{
irc_reply( irc, 311, "%s %s %s * :%s", u->nick, u->user, u->host, u->realname );
if( u->gc )
irc_reply( irc, 312, "%s %s.%s :%s network", u->nick, u->gc->user->username,
*u->gc->user->proto_opt[0] ? u->gc->user->proto_opt[0] : "", proto_name[u->gc->user->protocol] );
else
irc_reply( irc, 312, "%s %s :%s", u->nick, irc->myhost, IRCD_INFO );
if( !u->online )
irc_reply( irc, 301, "%s :%s", u->nick, "User is offline" );
else if( u->away )
irc_reply( irc, 301, "%s :%s", u->nick, u->away );
irc_reply( irc, 318, "%s :End of /WHOIS list", nick );
}
else
{
irc_reply( irc, 401, "%s :Nick does not exist", nick );
}
}
void irc_umode_set( irc_t *irc, char *who, char *s )
{
char m[256], st = 1, *t;
int i;
memset( m, 0, sizeof( m ) );
for( t = irc->umode; *t; t ++ )
m[(int)*t] = 1;
for( t = s; *t; t ++ )
{
if( *t == '+' || *t == '-' )
st = *t == '+';
else
m[(int)*t] = st;
}
memset( irc->umode, 0, sizeof( irc->umode ) );
for( i = 0; i < 256 && strlen( irc->umode ) < ( sizeof( irc->umode ) - 1 ); i ++ )
if( m[i] && strchr( UMODES, i ) )
irc->umode[strlen(irc->umode)] = i;
irc_reply( irc, 221, "+%s", irc->umode );
}
int irc_away( irc_t *irc, char *away )
{
user_t *u = user_find( irc, irc->nick );
account_t *a;
if( !u ) return( 0 );
if( away && *away )
{
int i, j;
/* Copy away string, but skip control chars. Mainly because
Jabber really doesn't like them. */
u->away = g_malloc( strlen( away ) + 1 );
for( i = j = 0; away[i]; i ++ )
if( ( u->away[j] = away[i] ) >= ' ' )
j ++;
u->away[j] = 0;
irc_reply( irc, 306, ":You're now away: %s", u->away );
/* irc_umode_set( irc, irc->myhost, "+a" ); */
}
else
{
if( u->away ) g_free( u->away );
u->away = NULL;
/* irc_umode_set( irc, irc->myhost, "-a" ); */
irc_reply( irc, 305, ":Welcome back" );
}
for( a = irc->accounts; a; a = a->next )
{
struct gaim_connection *gc = a->gc;
if( gc && gc->flags & OPT_LOGGED_IN )
proto_away( gc, u->away );
}
return( 1 );
}
void irc_spawn( irc_t *irc, user_t *u )
{
irc_join( irc, u, irc->channel );
}
void irc_join( irc_t *irc, user_t *u, char *channel )
{
char *nick;
if( ( g_strcasecmp( channel, irc->channel ) != 0 ) || user_find( irc, irc->nick ) )
irc_write( irc, ":%s!%s@%s JOIN :%s", u->nick, u->user, u->host, channel );
if( nick_cmp( u->nick, irc->nick ) == 0 )
{
irc_write( irc, ":%s MODE %s +%s", irc->myhost, channel, CMODE );
irc_names( irc, channel );
irc_topic( irc, channel );
}
nick = g_strdup( u->nick );
nick_lc( nick );
if( g_hash_table_lookup( irc->watches, nick ) )
{
irc_reply( irc, 600, "%s %s %s %d :%s", u->nick, u->user, u->host, time( NULL ), "logged online" );
}
g_free( nick );
}
void irc_part( irc_t *irc, user_t *u, char *channel )
{
irc_write( irc, ":%s!%s@%s PART %s :%s", u->nick, u->user, u->host, channel, "" );
}
void irc_kick( irc_t *irc, user_t *u, char *channel, user_t *kicker )
{
irc_write( irc, ":%s!%s@%s KICK %s %s :%s", kicker->nick, kicker->user, kicker->host, channel, u->nick, "" );
}
void irc_kill( irc_t *irc, user_t *u )
{
char *nick;
irc_write( irc, ":%s!%s@%s QUIT :%s", u->nick, u->user, u->host, "Leaving..." );
nick = g_strdup( u->nick );
nick_lc( nick );
if( g_hash_table_lookup( irc->watches, nick ) )
{
irc_reply( irc, 601, "%s %s %s %d :%s", u->nick, u->user, u->host, time( NULL ), "logged offline" );
}
g_free( nick );
}
void irc_invite( irc_t *irc, char *nick, char *channel )
{
struct conversation *c = conv_findchannel( channel );
user_t *u = user_find( irc, nick );
if( u && c && ( u->gc == c->gc ) )
if( c->gc && c->gc->prpl && c->gc->prpl->chat_invite )
{
c->gc->prpl->chat_invite( c->gc, c->id, "", u->handle );
irc_reply( irc, 341, "%s %s", nick, channel );
return;
}
irc_reply( irc, 482, "%s :Invite impossible; User/Channel non-existent or incompatible", channel );
}
int irc_send( irc_t *irc, char *nick, char *s, int flags )
{
struct conversation *c = NULL;
user_t *u = NULL;
if( *nick == '#' || *nick == '&' )
{
if( !( c = conv_findchannel( nick ) ) )
{
irc_reply( irc, 403, "%s :Channel does not exist", nick );
return( 0 );
}
}
else
{
u = user_find( irc, nick );
if( !u )
{
if( irc->is_private )
irc_reply( irc, 401, "%s :Nick does not exist", nick );
else
irc_usermsg( irc, "Nick `%s' does not exist!", nick );
return( 0 );
}
}
if( *s == 1 && s[strlen(s)-1] == 1 )
{
if( g_strncasecmp( s + 1, "ACTION", 6 ) == 0 )
{
if( s[7] == ' ' ) s ++;
s += 3;
*(s++) = '/';
*(s++) = 'm';
*(s++) = 'e';
*(s++) = ' ';
s -= 4;
s[strlen(s)-1] = 0;
}
else if( g_strncasecmp( s + 1, "VERSION", 7 ) == 0 )
{
u = user_find( irc, irc->mynick );
irc_privmsg( irc, u, "NOTICE", irc->nick, "", "\001VERSION BitlBee " BITLBEE_VERSION " " ARCH "/" CPU "\001" );
return( 1 );
}
else if( g_strncasecmp( s + 1, "PING", 4 ) == 0 )
{
u = user_find( irc, irc->mynick );
irc_privmsg( irc, u, "NOTICE", irc->nick, "", s );
return( 1 );
}
else if( g_strncasecmp( s + 1, "TYPING", 6 ) == 0 )
{
if( u && u->gc && u->gc->prpl->send_typing && strlen( s ) >= 10 )
{
time_t current_typing_notice = time( NULL );
if( current_typing_notice - u->last_typing_notice >= 5 )
{
u->gc->prpl->send_typing( u->gc, u->handle, s[8] == '1' );
u->last_typing_notice = current_typing_notice;
}
}
return( 1 );
}
else
{
irc_usermsg( irc, "Non-ACTION CTCP's aren't supported" );
return( 0 );
}
}
if( u )
{
/* For the next message, we probably do have to send new notices... */
u->last_typing_notice = 0;
u->is_private = irc->is_private;
if( u->is_private )
{
if( !u->online )
irc_reply( irc, 301, "%s :%s", u->nick, "User is offline" );
else if( u->away )
irc_reply( irc, 301, "%s :%s", u->nick, u->away );
}
if( u->send_handler )
return( u->send_handler( irc, u, s, flags ) );
}
else if( c && c->gc && c->gc->prpl )
{
return( serv_send_chat( irc, c->gc, c->id, s ) );
}
return( 0 );
}
gboolean buddy_send_handler_delayed( gpointer data )
{
user_t *u = data;
u->sendbuf[u->sendbuf_len-2] = 0; /* Cut off the last newline */
serv_send_im( u->gc->irc, u, u->sendbuf, u->sendbuf_flags );
g_free( u->sendbuf );
u->sendbuf = NULL;
u->sendbuf_len = 0;
u->sendbuf_timer = 0;
u->sendbuf_flags = 0;
return( FALSE );
}
int buddy_send_handler( irc_t *irc, user_t *u, char *msg, int flags )
{
if( !u || !u->gc ) return( 0 );
if( set_getint( irc, "buddy_sendbuffer" ) && set_getint( irc, "buddy_sendbuffer_delay" ) > 0 )
{
int delay;
if( u->sendbuf_len > 0 && u->sendbuf_flags != flags)
{
//Flush the buffer
g_source_remove( u->sendbuf_timer );
buddy_send_handler_delayed( u );
}
if( u->sendbuf_len == 0 )
{
u->sendbuf_len = strlen( msg ) + 2;
u->sendbuf = g_new (char, u->sendbuf_len );
u->sendbuf[0] = 0;
u->sendbuf_flags = flags;
}
else
{
u->sendbuf_len += strlen( msg ) + 1;
u->sendbuf = g_renew ( char, u->sendbuf, u->sendbuf_len );
}
strcat( u->sendbuf, msg );
strcat( u->sendbuf, "\n" );
delay = set_getint( irc, "buddy_sendbuffer_delay" );
if( delay <= 5 )
delay *= 1000;
if( u->sendbuf_timer > 0 )
g_source_remove( u->sendbuf_timer );
u->sendbuf_timer = g_timeout_add( delay, buddy_send_handler_delayed, u );
return( 1 );
}
else
{
return( serv_send_im( irc, u, msg, flags ) );
}
}
int irc_privmsg( irc_t *irc, user_t *u, char *type, char *to, char *prefix, char *msg )
{
char last = 0;
char *s = msg, *line = msg;
/* The almighty linesplitter .. woohoo!! */
while( !last )
{
if( *s == '\r' && *(s+1) == '\n' )
*(s++) = 0;
if( *s == '\n' )
{
last = s[1] == 0;
*s = 0;
}
else
{
last = s[0] == 0;
}
if( *s == 0 )
{
if( g_strncasecmp( line, "/me ", 4 ) == 0 && ( !prefix || !*prefix ) && g_strcasecmp( type, "PRIVMSG" ) == 0 )
{
irc_write( irc, ":%s!%s@%s %s %s :\001ACTION %s\001", u->nick, u->user, u->host,
type, to, line + 4 );
}
else
{
irc_write( irc, ":%s!%s@%s %s %s :%s%s", u->nick, u->user, u->host,
type, to, prefix ? prefix : "", line );
}
line = s + 1;
}
s ++;
}
return( 1 );
}
int irc_msgfrom( irc_t *irc, char *nick, char *msg )
{
user_t *u = user_find( irc, nick );
static char *prefix = NULL;
if( !u ) return( 0 );
if( prefix && *prefix ) g_free( prefix );
if( !u->is_private && nick_cmp( u->nick, irc->mynick ) != 0 )
{
int len = strlen( irc->nick) + 3;
prefix = g_new (char, len );
g_snprintf( prefix, len, "%s%s", irc->nick, set_getstr( irc, "to_char" ) );
prefix[len-1] = 0;
}
else
{
prefix = "";
}
return( irc_privmsg( irc, u, "PRIVMSG", u->is_private ? irc->nick : irc->channel, prefix, msg ) );
}
int irc_noticefrom( irc_t *irc, char *nick, char *msg )
{
user_t *u = user_find( irc, nick );
if( u )
return( irc_privmsg( irc, u, "NOTICE", irc->nick, "", msg ) );
else
return( 0 );
}
/* Returns 0 if everything seems to be okay, a number >0 when there was a
timeout. The number returned is the number of seconds we received no
pongs from the user. When not connected yet, we don't ping but drop the
connection when the user fails to connect in IRC_LOGIN_TIMEOUT secs. */
static gboolean irc_userping( gpointer _irc )
{
irc_t *irc = _irc;
int rv = 0;
if( irc->status < USTATUS_LOGGED_IN )
{
if( gettime() > ( irc->last_pong + IRC_LOGIN_TIMEOUT ) )
rv = gettime() - irc->last_pong;
}
else
{
if( ( gettime() > ( irc->last_pong + global.conf->ping_interval ) ) && !irc->pinging )
{
irc_write( irc, "PING :%s", IRC_PING_STRING );
irc->pinging = 1;
}
else if( gettime() > ( irc->last_pong + global.conf->ping_timeout ) )
{
rv = gettime() - irc->last_pong;
}
}
if( rv > 0 )
{
irc_write( irc, "ERROR :Closing Link: Ping Timeout: %d seconds", rv );
irc_free( irc );
return FALSE;
}
return TRUE;
}
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