source: protocols/nogaim.c @ bad4a586

  /********************************************************************\
  * BitlBee -- An IRC to other IM-networks gateway                     *
  *                                                                    *
  * Copyright 2002-2004 Wilmer van der Gaast and others                *
  \********************************************************************/

/*
 * nogaim
 *
 * Gaim without gaim - for BitlBee
 *
 * This file contains functions called by the Gaim IM-modules. It's written
 * from scratch for BitlBee and doesn't contain any code from Gaim anymore
 * (except for the function names).
 *
 * Copyright 2002-2004 Wilmer van der Gaast <lintux@lintux.cx>
 */

/*
  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 "nogaim.h"
#include <ctype.h>
#include <iconv.h>

struct prpl *proto_prpl[PROTO_MAX];
char proto_name[PROTO_MAX][8] = { "TOC", "OSCAR", "YAHOO", "ICQ", "MSN", "", "", "", "JABBER", "", "", "", "", "", "", "" };

static char *proto_away_alias[7][5] =
{
        { "Away from computer", "Away", "Extended away", NULL },
        { "NA", "N/A", "Not available", NULL },
        { "Busy", "Do not disturb", "DND", "Occupied", NULL },
        { "Be right back", "BRB", NULL },
        { "On the phone", "Phone", "On phone", NULL },
        { "Out to lunch", "Lunch", "Food", NULL },
        { NULL }
};
static char *proto_away_alias_find( GList *gcm, char *away );

static int remove_chat_buddy_silent( struct conversation *b, char *handle );

GSList *connections;


/* nogaim.c */

void nogaim_init()
{
        proto_prpl[PROTO_MSN] = g_new0 ( struct prpl, 1 );
#ifdef WITH_MSN
        msn_init( proto_prpl[PROTO_MSN] );
#endif

        proto_prpl[PROTO_OSCAR] = g_new0( struct prpl, 1 );
#ifdef WITH_OSCAR
        oscar_init( proto_prpl[PROTO_OSCAR] );
#endif
        
        proto_prpl[PROTO_YAHOO] = g_new0( struct prpl, 1 );
#ifdef WITH_YAHOO
        byahoo_init( proto_prpl[PROTO_YAHOO] );
#endif
        
        proto_prpl[PROTO_JABBER] = g_new0( struct prpl, 1 );
#ifdef WITH_JABBER
        jabber_init( proto_prpl[PROTO_JABBER] );
#endif
}

GSList *get_connections() { return connections; }

int proto_away( struct gaim_connection *gc, char *away )
{
        GList *m, *ms;
        char *s;
        
        if( !away ) away = "";
        ms = m = gc->prpl->away_states( gc );
        
        while( m )
        {
                if( *away )
                {
                        if( g_strncasecmp( m->data, away, strlen( m->data ) ) == 0 )
                                break;
                }
                else
                {
                        if( g_strcasecmp( m->data, "Available" ) == 0 )
                                break;
                        if( g_strcasecmp( m->data, "Online" ) == 0 )
                                break;
                }
                m = m->next;
        }
        
        if( m )
        {
                gc->prpl->set_away( gc, m->data, *away ? away : NULL );
        }
        else
        {
                s = proto_away_alias_find( ms, away );
                if( s )
                {
                        gc->prpl->set_away( gc, s, away );
                        if( set_getint( gc->irc, "debug" ) )
                                serv_got_crap( gc, "Setting away state to %s", s );
                }
                else
                        gc->prpl->set_away( gc, GAIM_AWAY_CUSTOM, away );
        }
        
        g_list_free( ms );
        
        return( 1 );
}

static char *proto_away_alias_find( GList *gcm, char *away )
{
        GList *m;
        int i, j;
        
        for( i = 0; *proto_away_alias[i]; i ++ )
        {
                for( j = 0; proto_away_alias[i][j]; j ++ )
                        if( g_strncasecmp( away, proto_away_alias[i][j], strlen( proto_away_alias[i][j] ) ) == 0 )
                                break;
                
                if( !proto_away_alias[i][j] )   /* If we reach the end, this row */
                        continue;               /* is not what we want. Next!    */
                
                /* Now find an entry in this row which exists in gcm */
                for( j = 0; proto_away_alias[i][j]; j ++ )
                {
                        m = gcm;
                        while( m )
                        {
                                if( g_strcasecmp( proto_away_alias[i][j], m->data ) == 0 )
                                        return( proto_away_alias[i][j] );
                                m = m->next;
                        }
                }
        }
        
        return( NULL );
}

/* multi.c */

struct gaim_connection *new_gaim_conn( struct aim_user *user )
{
        struct gaim_connection *gc;
        account_t *a;
        
        gc = g_new0( struct gaim_connection, 1 );
        
        gc->protocol = user->protocol;
        gc->prpl = proto_prpl[gc->protocol];
        g_snprintf( gc->username, sizeof( gc->username ), "%s", user->username );
        g_snprintf( gc->password, sizeof( gc->password ), "%s", user->password );
        /* [MD] BUGFIX: don't set gc->irc to the global IRC, but use the one from the struct aim_user.
         * This fixes daemon mode breakage where IRC doesn't point to the currently active connection.
         */
        gc->irc=user->irc;
        
        connections = g_slist_append( connections, gc );
        
        user->gc = gc;
        gc->user = user;
        
        // Find the account_t so we can set its gc pointer
        for( a = gc->irc->accounts; a; a = a->next )
                if( ( struct aim_user * ) a->gc == user )
                {
                        a->gc = gc;
                        break;
                }
        
        return( gc );
}

void destroy_gaim_conn( struct gaim_connection *gc )
{
        account_t *a;
        
        /* Destroy the pointer to this connection from the account list */
        for( a = gc->irc->accounts; a; a = a->next )
                if( a->gc == gc )
                {
                        a->gc = NULL;
                        break;
                }
        
        connections = g_slist_remove( connections, gc );
        g_free( gc->user );
        g_free( gc );
}

void set_login_progress( struct gaim_connection *gc, int step, char *msg )
{
        serv_got_crap( gc, "Logging in: %s", msg );
}

/* Errors *while* logging in */
void hide_login_progress( struct gaim_connection *gc, char *msg )
{
        serv_got_crap( gc, "Login error: %s", msg );
}

/* Errors *after* logging in */
void hide_login_progress_error( struct gaim_connection *gc, char *msg )
{
        serv_got_crap( gc, "Logged out: %s", msg );
}

void serv_got_crap( struct gaim_connection *gc, char *format, ... )
{
        va_list params;
        char text[1024], buf[1024], acc_id[33];
        char *msg;
        account_t *a;
        
        va_start( params, format );
        g_vsnprintf( text, sizeof( text ), format, params );
        va_end( params );

        if( g_strncasecmp( set_getstr( gc->irc, "charset" ), "none", 4 ) != 0 &&
            do_iconv( "UTF8", set_getstr( gc->irc, "charset" ), text, buf, 0, 1024 ) != -1 )
                msg = buf;
        else
                msg = text;
        
        if( ( g_strcasecmp( set_getstr( gc->irc, "strip_html" ), "always" ) == 0 ) ||
            ( ( gc->flags & OPT_CONN_HTML ) && set_getint( gc->irc, "strip_html" ) ) )
                strip_html( msg );
        
        /* Try to find a different connection on the same protocol. */
        for( a = gc->irc->accounts; a; a = a->next )
                if( proto_prpl[a->protocol] == gc->prpl && a->gc != gc )
                        break;
        
        /* If we found one, add the screenname to the acc_id. */
        if( a )
                g_snprintf( acc_id, 32, "%s(%s)", proto_name[gc->protocol], gc->username );
        else
                g_snprintf( acc_id, 32, "%s", proto_name[gc->protocol] );
        
        irc_usermsg( gc->irc, "%s - %s", acc_id, msg );
}

static gboolean send_keepalive( gpointer d )
{
        struct gaim_connection *gc = d;
        
        if( gc->prpl && gc->prpl->keepalive )
                gc->prpl->keepalive( gc );
        
        return TRUE;
}

void account_online( struct gaim_connection *gc )
{
        user_t *u;
        
        /* MSN servers sometimes redirect you to a different server and do
           the whole login sequence again, so subsequent calls to this
           function should be handled correctly. (IOW, ignored) */
        if( gc->flags & OPT_LOGGED_IN )
                return;
        
        u = user_find( gc->irc, gc->irc->nick );
        
        serv_got_crap( gc, "Logged in" );
        
        gc->keepalive = g_timeout_add( 60000, send_keepalive, gc );
        gc->flags |= OPT_LOGGED_IN;
        
        if( u && u->away ) proto_away( gc, u->away );
        
        if( gc->protocol == PROTO_ICQ )
        {
                for( u = gc->irc->users; u; u = u->next )
                        if( u->gc == gc )
                                break;
                
                if( u == NULL )
                        serv_got_crap( gc, "\x02""***\x02"" BitlBee now supports ICQ server-side contact lists. "
                                              "See \x02""help import_buddies\x02"" for more information." );
        }
}

gboolean auto_reconnect( gpointer data )
{
        account_t *a = data;
        
        a->reconnect = 0;
        account_on( a->irc, a );
        
        return( FALSE );        /* Only have to run the timeout once */
}

void cancel_auto_reconnect( account_t *a )
{
        while( g_source_remove_by_user_data( (gpointer) a ) );
        a->reconnect = 0;
}

void account_offline( struct gaim_connection *gc )
{
        gc->wants_to_die = TRUE;
        signoff( gc );
}

void signoff( struct gaim_connection *gc )
{
        irc_t *irc = gc->irc;
        user_t *t, *u = irc->users;
        account_t *a;
        
        serv_got_crap( gc, "Signing off.." );

        gaim_input_remove( gc->keepalive );
        gc->keepalive = 0;
        gc->prpl->close( gc );
        gaim_input_remove( gc->inpa );
        
        while( u )
        {
                if( u->gc == gc )
                {
                        t = u->next;
                        user_del( irc, u->nick );
                        u = t;
                }
                else
                        u = u->next;
        }
        
        query_del_by_gc( gc->irc, gc );
        
        for( a = irc->accounts; a; a = a->next )
                if( a->gc == gc )
                        break;
        
        if( !a )
        {
                /* Uhm... This is very sick. */
        }
        else if( !gc->wants_to_die && set_getint( irc, "auto_reconnect" ) )
        {
                int delay = set_getint( irc, "auto_reconnect_delay" );
                serv_got_crap( gc, "Reconnecting in %d seconds..", delay );
                
                a->reconnect = 1;
                g_timeout_add( delay * 1000, auto_reconnect, a );
        }
        
        destroy_gaim_conn( gc );
}


/* dialogs.c */

void do_error_dialog( struct gaim_connection *gc, char *msg, char *title )
{
        if( msg && title )
                serv_got_crap( gc, "Error: %s: %s", title, msg );
        else if( msg )
                serv_got_crap( gc, "Error: %s", msg );
        else if( title )
                serv_got_crap( gc, "Error: %s", title );
        else
                serv_got_crap( gc, "Error" );
}

void do_ask_dialog( struct gaim_connection *gc, char *msg, void *data, void *doit, void *dont )
{
        query_add( gc->irc, gc, msg, doit, dont, data );
}


/* list.c */

int bud_list_cache_exists( struct gaim_connection *gc )
{
        return( 0 );
}

void do_import( struct gaim_connection *gc, void *null )
{
        return;
}

void add_buddy( struct gaim_connection *gc, char *group, char *handle, char *realname )
{
        user_t *u;
        char nick[MAX_NICK_LENGTH+1];
        char *s;
        irc_t *irc = gc->irc;
        
        if( set_getint( irc, "debug" ) && 0 ) /* This message is too useless */
                serv_got_crap( gc, "Receiving user add from handle: %s", handle );
        
        if( user_findhandle( gc, handle ) )
        {
                if( set_getint( irc, "debug" ) )
                        serv_got_crap( gc, "User already exists, ignoring add request: %s", handle );
                
                return;
                
                /* Buddy seems to exist already. Let's ignore this request then... */
        }
        
        memset( nick, 0, MAX_NICK_LENGTH + 1 );
        strcpy( nick, nick_get( gc->irc, handle, gc->protocol, realname ) );
        
        u = user_add( gc->irc, nick );
        
        if( !realname || !*realname ) realname = nick;
        u->realname = g_strdup( realname );
        
        if( ( s = strchr( handle, '@' ) ) )
        {
                u->host = g_strdup( s + 1 );
                u->user = g_strndup( handle, s - handle );
        }
        else if( gc->user->proto_opt[0] && *gc->user->proto_opt[0] )
        {
                u->host = g_strdup( gc->user->proto_opt[0] );
                u->user = g_strdup( handle );
                
                /* s/ /_/ ... important for AOL screennames */
                for( s = u->user; *s; s ++ )
                        if( *s == ' ' )
                                *s = '_';
        }
        else
        {
                u->host = g_strdup( proto_name[gc->user->protocol] );
                u->user = g_strdup( handle );
        }
        
        u->gc = gc;
        u->handle = g_strdup( handle );
        u->send_handler = buddy_send_handler;
        u->last_typing_notice = 0;
}

struct buddy *find_buddy( struct gaim_connection *gc, char *handle )
{
        static struct buddy b[1];
        user_t *u;
        
        u = user_findhandle( gc, handle );
        
        if( !u )
                return( NULL );

        memset( b, 0, sizeof( b ) );
        strncpy( b->name, handle, 80 );
        strncpy( b->show, u->realname, BUDDY_ALIAS_MAXLEN );
        b->present = u->online;
        b->gc = u->gc;
        
        return( b );
}

void do_export( struct gaim_connection *gc )
{
        return;
}

void signoff_blocked( struct gaim_connection *gc )
{
        return; /* Make all blocked users look invisible (TODO?) */
}


void serv_buddy_rename( struct gaim_connection *gc, char *handle, char *realname )
{
        user_t *u = user_findhandle( gc, handle );
        char *name, buf[1024];
        
        if( !u ) return;
        
        /* Convert all UTF-8 */
        if( g_strncasecmp( set_getstr( gc->irc, "charset" ), "none", 4 ) != 0 &&
            do_iconv( "UTF-8", set_getstr( gc->irc, "charset" ), realname, buf, 0, sizeof( buf ) ) != -1 )
                name = buf;
        else
                name = realname;
        
        if( g_strcasecmp( u->realname, name ) != 0 )
        {
                if( u->realname != u->nick ) g_free( u->realname );
                
                u->realname = g_strdup( name );
                
                if( ( gc->flags & OPT_LOGGED_IN ) && set_getint( gc->irc, "display_namechanges" ) )
                        serv_got_crap( gc, "User `%s' changed name to `%s'", u->nick, u->realname );
        }
}


/* prpl.c */

void show_got_added( struct gaim_connection *gc, char *id, char *handle, const char *realname, const char *msg )
{
        return;
}


/* server.c */                    

void serv_got_update( struct gaim_connection *gc, char *handle, int loggedin, int evil, time_t signon, time_t idle, int type, guint caps )
{
        user_t *u;
        int oa, oo;
        
        u = user_findhandle( gc, handle );
        
        if( !u )
        {
                if( g_strcasecmp( set_getstr( gc->irc, "handle_unknown" ), "add" ) == 0 )
                {
                        add_buddy( gc, NULL, handle, NULL );
                        u = user_findhandle( gc, handle );
                }
                else
                {
                        if( set_getint( gc->irc, "debug" ) || g_strcasecmp( set_getstr( gc->irc, "handle_unknown" ), "ignore" ) != 0 )
                        {
                                serv_got_crap( gc, "serv_got_update() for handle %s:", handle );
                                serv_got_crap( gc, "loggedin = %d, type = %d", loggedin, type );
                        }
                        
                        return;
                }
                return;
        }
        
        oa = u->away != NULL;
        oo = u->online;
        
        if( u->away )
        {
                g_free( u->away );
                u->away = NULL;
        }
        
        if( loggedin && !u->online )
        {
                irc_spawn( gc->irc, u );
                u->online = 1;
        }
        else if( !loggedin && u->online )
        {
                struct conversation *c;
                
                irc_kill( gc->irc, u );
                u->online = 0;
                
                /* Remove him/her from the conversations to prevent PART messages after he/she QUIT already */
                for( c = gc->conversations; c; c = c->next )
                        remove_chat_buddy_silent( c, handle );
        }
        
        if( ( type & UC_UNAVAILABLE ) && ( gc->protocol == PROTO_OSCAR || gc->protocol == PROTO_TOC ) )
        {
                u->away = g_strdup( "Away" );
        }
        else if( ( type & UC_UNAVAILABLE ) && ( gc->protocol == PROTO_JABBER ) )
        {
                if( type & UC_DND )
                        u->away = g_strdup( "Do Not Disturb" );
                else if( type & UC_XA )
                        u->away = g_strdup( "Extended Away" );
                else // if( type & UC_AWAY )
                        u->away = g_strdup( "Away" );
        }
        else if( ( type & UC_UNAVAILABLE ) && gc->prpl->get_status_string )
        {
                u->away = g_strdup( gc->prpl->get_status_string( gc, type ) );
        }
        else
                u->away = NULL;
        
        /* LISPy... */
        if( ( set_getint( gc->irc, "away_devoice" ) ) &&                /* Don't do a thing when user doesn't want it */
            ( u->online ) &&                                            /* Don't touch offline people */
            ( ( ( u->online != oo ) && !u->away ) ||                    /* Voice joining people */
              ( ( u->online == oo ) && ( oa == !u->away ) ) ) )         /* (De)voice people changing state */
        {
                irc_write( gc->irc, ":%s!%s@%s MODE %s %cv %s", gc->irc->mynick, gc->irc->mynick, gc->irc->myhost,
                                                                gc->irc->channel, u->away?'-':'+', u->nick );
        }
}

void serv_got_im( struct gaim_connection *gc, char *handle, char *msg, guint32 flags, time_t mtime, gint len )
{
        irc_t *irc = gc->irc;
        user_t *u;
        char buf[8192];
        
        u = user_findhandle( gc, handle );
        
        if( !u )
        {
                char *h = set_getstr( irc, "handle_unknown" );
                
                if( g_strcasecmp( h, "ignore" ) == 0 )
                {
                        if( set_getint( irc, "debug" ) )
                                serv_got_crap( gc, "Ignoring message from unknown handle %s", handle );
                        
                        return;
                }
                else if( g_strncasecmp( h, "add", 3 ) == 0 )
                {
                        int private = set_getint( irc, "private" );
                        
                        if( h[3] )
                        {
                                if( g_strcasecmp( h + 3, "_private" ) == 0 )
                                        private = 1;
                                else if( g_strcasecmp( h + 3, "_channel" ) == 0 )
                                        private = 0;
                        }
                        
                        add_buddy( gc, NULL, handle, NULL );
                        u = user_findhandle( gc, handle );
                        u->is_private = private;
                }
                else
                {
                        serv_got_crap( gc, "Message from unknown handle %s:", handle );
                        u = user_find( irc, irc->mynick );
                }
        }
        
        if( ( g_strcasecmp( set_getstr( gc->irc, "strip_html" ), "always" ) == 0 ) ||
            ( ( gc->flags & OPT_CONN_HTML ) && set_getint( gc->irc, "strip_html" ) ) )
                strip_html( msg );

        if( g_strncasecmp( set_getstr( irc, "charset" ), "none", 4 ) != 0 &&
            do_iconv( "UTF-8", set_getstr( irc, "charset" ), msg, buf, 0, 8192 ) != -1 )
                msg = buf;
        
        while( strlen( msg ) > 425 )
        {
                char tmp, *nl;
                
                tmp = msg[425];
                msg[425] = 0;
                
                /* If there's a newline/space in this string, split up there,
                   looks a bit prettier. */
                if( ( nl = strrchr( msg, '\n' ) ) || ( nl = strrchr( msg, ' ' ) ) )
                {
                        msg[425] = tmp;
                        tmp = *nl;
                        *nl = 0;
                }
                
                irc_msgfrom( irc, u->nick, msg );
                
                /* Move on. */
                if( nl )
                {
                        *nl = tmp;
                        msg = nl + 1;
                }
                else
                {
                        msg[425] = tmp;
                        msg += 425;
                }
        }
        irc_msgfrom( irc, u->nick, msg );
}

void serv_got_typing( struct gaim_connection *gc, char *handle, int timeout )
{
        user_t *u;
        
        if( !set_getint( gc->irc, "typing_notice" ) )
                return;
        
        if( ( u = user_findhandle( gc, handle ) ) )
                irc_privmsg( gc->irc, u, "PRIVMSG", gc->irc->nick, NULL, "\1TYPING \1" );
}

void serv_got_chat_left( struct gaim_connection *gc, int id )
{
        struct conversation *c, *l = NULL;
        GList *ir;
        
        if( set_getint( gc->irc, "debug" ) )
                serv_got_crap( gc, "You were removed from conversation %d", (int) id );
        
        for( c = gc->conversations; c && c->id != id; c = (l=c)->next );
        
        if( c )
        {
                if( c->joined )
                {
                        user_t *u, *r;
                        
                        r = user_find( gc->irc, gc->irc->mynick );
                        irc_privmsg( gc->irc, r, "PRIVMSG", c->channel, "", "Cleaning up channel, bye!" );
                        
                        u = user_find( gc->irc, gc->irc->nick );
                        irc_kick( gc->irc, u, c->channel, r );
                        /* irc_part( gc->irc, u, c->channel ); */
                }
                
                if( l )
                        l->next = c->next;
                else
                        gc->conversations = c->next;
                
                for( ir = c->in_room; ir; ir = ir->next )
                        g_free( ir->data );
                g_list_free( c->in_room );
                g_free( c->channel );
                g_free( c->title );
                g_free( c );
        }
}

void serv_got_chat_in( struct gaim_connection *gc, int id, char *who, int whisper, char *msg, time_t mtime )
{
        struct conversation *c;
        user_t *u;
        char buf[8192];
        
        /* Gaim sends own messages through this too. IRC doesn't want this, so kill them */
        if( g_strcasecmp( who, gc->user->username ) == 0 )
                return;
        
        u = user_findhandle( gc, who );
        for( c = gc->conversations; c && c->id != id; c = c->next );
        
        if( ( g_strcasecmp( set_getstr( gc->irc, "strip_html" ), "always" ) == 0 ) ||
            ( ( gc->flags & OPT_CONN_HTML ) && set_getint( gc->irc, "strip_html" ) ) )
                strip_html( msg );
        
        if( g_strncasecmp( set_getstr( gc->irc, "charset" ), "none", 4 ) != 0 &&
            do_iconv( "UTF-8", set_getstr( gc->irc, "charset" ), msg, buf, 0, 8192 ) != -1 )
                msg = buf;
        
        if( c && u )
                irc_privmsg( gc->irc, u, "PRIVMSG", c->channel, "", msg );
        else
                serv_got_crap( gc, "Message from/to conversation %s@%d (unknown conv/user): %s", who, id, msg );
}

struct conversation *serv_got_joined_chat( struct gaim_connection *gc, int id, char *handle )
{
        struct conversation *c;
        char *s;
        
        /* This one just creates the conversation structure, user won't see anything yet */
        
        if( gc->conversations )
        {
                for( c = gc->conversations; c->next; c = c->next );
                c = c->next = g_new0( struct conversation, 1 );
        }
        else
                gc->conversations = c = g_new0( struct conversation, 1);
        
        c->id = id;
        c->gc = gc;
        c->title = g_strdup( handle );
        
        s = g_new( char, 16 );
        sprintf( s, "&chat_%03d", gc->irc->c_id++ );
        c->channel = g_strdup( s );
        g_free( s );
        
        if( set_getint( gc->irc, "debug" ) )
                serv_got_crap( gc, "Creating new conversation: (id=%d,handle=%s)", id, handle );
        
        return( c );
}

void serv_finish_login( struct gaim_connection *gc )
{
        return;
}


/* buddy_chat.c */

void add_chat_buddy( struct conversation *b, char *handle )
{
        user_t *u = user_findhandle( b->gc, handle );
        int me = 0;
        
        if( set_getint( b->gc->irc, "debug" ) )
                serv_got_crap( b->gc, "User %s added to conversation %d", handle, b->id );
        
        /* It might be yourself! */
        if( b->gc->prpl->cmp_buddynames( handle, b->gc->user->username ) == 0 )
        {
                u = user_find( b->gc->irc, b->gc->irc->nick );
                if( !b->joined )
                        irc_join( b->gc->irc, u, b->channel );
                b->joined = me = 1;
        }
        
        /* Most protocols allow people to join, even when they're not in
           your contact list. Try to handle that here */
        if( !u )
        {
                add_buddy( b->gc, NULL, handle, NULL );
                u = user_findhandle( b->gc, handle );
        }
        
        /* Add the handle to the room userlist, if it's not 'me' */
        if( !me )
        {
                if( b->joined )
                        irc_join( b->gc->irc, u, b->channel );
                b->in_room = g_list_append( b->in_room, g_strdup( handle ) );
        }
}

void remove_chat_buddy( struct conversation *b, char *handle, char *reason )
{
        user_t *u;
        int me = 0;
        
        if( set_getint( b->gc->irc, "debug" ) )
                serv_got_crap( b->gc, "User %s removed from conversation %d (%s)", handle, b->id, reason ? reason : "" );
        
        /* It might be yourself! */
        if( g_strcasecmp( handle, b->gc->user->username ) == 0 )
        {
                u = user_find( b->gc->irc, b->gc->irc->nick );
                b->joined = 0;
                me = 1;
        }
        else
        {
                u = user_findhandle( b->gc, handle );
        }
        
        if( remove_chat_buddy_silent( b, handle ) )
                if( ( b->joined || me ) && u )
                        irc_part( b->gc->irc, u, b->channel );
}

static int remove_chat_buddy_silent( struct conversation *b, char *handle )
{
        GList *i;
        
        /* Find the handle in the room userlist and shoot it */
        i = b->in_room;
        while( i )
        {
                if( g_strcasecmp( handle, i->data ) == 0 )
                {
                        g_free( i->data );
                        b->in_room = g_list_remove( b->in_room, i->data );
                        return( 1 );
                }
                
                i = i->next;
        }
        
        return( 0 );
}


/* prefs.c */

/* Necessary? */
void build_block_list()
{
        return;
}

void build_allow_list()
{
        return;
}


/* Misc. BitlBee stuff which shouldn't really be here */

struct conversation *conv_findchannel( char *channel )
{
        struct gaim_connection *gc;
        struct conversation *c;
        GSList *l;
        
        /* This finds the connection which has a conversation which belongs to this channel */
        for( l = connections; l; l = l->next )
        {
                gc = l->data;
                for( c = gc->conversations; c && g_strcasecmp( c->channel, channel ) != 0; c = c->next );
                if( c )
                        return( c );
        }
        
        return( NULL );
}

char *set_eval_away_devoice( irc_t *irc, set_t *set, char *value )
{
        int st;
        
        if( ( g_strcasecmp( value, "true" ) == 0 ) || ( g_strcasecmp( value, "yes" ) == 0 ) || ( g_strcasecmp( value, "on" ) == 0 ) )
                st = 1;
        else if( ( g_strcasecmp( value, "false" ) == 0 ) || ( g_strcasecmp( value, "no" ) == 0 ) || ( g_strcasecmp( value, "off" ) == 0 ) )
                st = 0;
        else if( sscanf( value, "%d", &st ) != 1 )
                return( NULL );
        
        st = st != 0;
        
        /* Horror.... */
        
        if( st != set_getint( irc, "away_devoice" ) )
        {
                char list[80] = "";
                user_t *u = irc->users;
                int i = 0, count = 0;
                char pm;
                char v[80];
                
                if( st )
                        pm = '+';
                else
                        pm = '-';
                
                while( u )
                {
                        if( u->gc && u->online && !u->away )
                        {
                                if( ( strlen( list ) + strlen( u->nick ) ) >= 79 )
                                {
                                        for( i = 0; i < count; v[i++] = 'v' ); v[i] = 0;
                                        irc_write( irc, ":%s!%s@%s MODE %s %c%s%s",
                                                   irc->mynick, irc->mynick, irc->myhost,
                                                   irc->channel, pm, v, list );
                                        
                                        *list = 0;
                                        count = 0;
                                }
                                
                                sprintf( list + strlen( list ), " %s", u->nick );
                                count ++;
                        }
                        u = u->next;
                }
                
                /* $v = 'v' x $i */
                for( i = 0; i < count; v[i++] = 'v' ); v[i] = 0;
                irc_write( irc, ":%s!%s@%s MODE %s %c%s%s", irc->mynick, irc->mynick, irc->myhost,
                                                            irc->channel, pm, v, list );
        }
        
        return( set_eval_bool( irc, set, value ) );
}

int serv_send_im( irc_t *irc, user_t *u, char *msg, int flags )
{
        char buf[8192];
        
        if( g_strncasecmp( set_getstr( irc, "charset" ), "none", 4 ) != 0 &&
            do_iconv( set_getstr( irc, "charset" ), "UTF-8", msg, buf, 0, 8192 ) != -1 )
                msg = buf;

        if( ( u->gc->flags & OPT_CONN_HTML ) && ( g_strncasecmp( msg, "<html>", 6 ) != 0 ) )
        {
                char *html;
                
                html = escape_html( msg );
                strncpy( buf, html, 8192 );
                g_free( html );
                
                msg = buf;
        }
        
        return( ((struct gaim_connection *)u->gc)->prpl->send_im( u->gc, u->handle, msg, strlen( msg ), flags ) );
}

int serv_send_chat( irc_t *irc, struct gaim_connection *gc, int id, char *msg )
{
        char buf[8192];
        
        if( g_strncasecmp( set_getstr( irc, "charset" ), "none", 4 ) != 0 &&
            do_iconv( set_getstr( irc, "charset" ), "UTF-8", msg, buf, 0, 8192 ) != -1 )
                msg = buf;

        if( gc->flags & OPT_CONN_HTML) {
                char * html = escape_html(msg);
                strncpy(buf, html, 8192);
                g_free(html);
        }
        
        return( gc->prpl->chat_send( gc, id, msg ) );
}

/* Convert from one charset to another.
   
   from_cs, to_cs: Source and destination charsets
   src, dst: Source and destination strings
   size: Size if src. 0 == use strlen(). strlen() is not reliable for UNICODE/UTF16 strings though.
   maxbuf: Maximum number of bytes to write to dst
   
   Returns the number of bytes written to maxbuf or -1 on an error.
*/
signed int do_iconv( char *from_cs, char *to_cs, char *src, char *dst, size_t size, size_t maxbuf )
{
        iconv_t cd;
        size_t res;
        size_t inbytesleft, outbytesleft;
        char *inbuf = src;
        char *outbuf = dst;
        
        cd = iconv_open( to_cs, from_cs );
        if( cd == (iconv_t) -1 )
                return( -1 );
        
        inbytesleft = size ? size : strlen( src );
        outbytesleft = maxbuf - 1;
        res = iconv( cd, &inbuf, &inbytesleft, &outbuf, &outbytesleft );
        *outbuf = '\0';
        iconv_close( cd );
        
        if( res == (size_t) -1 )
                return( -1 );
        else
                return( outbuf - dst );
}

char *set_eval_charset( irc_t *irc, set_t *set, char *value )
{
        iconv_t cd;

        if ( g_strncasecmp( value, "none", 4 ) == 0 )
                return( value );

        cd = iconv_open( "UTF-8", value );
        if( cd == (iconv_t) -1 )
                return( NULL );

        iconv_close( cd );
        return( value );
}