source: protocols/msn/msn.c @ 8358691

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

/* MSN module - Main file; functions to be called from BitlBee          */

/*
  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
*/

#include "nogaim.h"
#include "msn.h"

int msn_chat_id;
GSList *msn_connections;
GSList *msn_switchboards;

static char *set_eval_display_name( set_t *set, char *value );

static void msn_init( account_t *acc )
{
        set_add( &acc->set, "display_name", NULL, set_eval_display_name, acc );
        set_add( &acc->set, "local_display_name", "false", set_eval_bool, acc );
        set_add( &acc->set, "mail_notifications", "false", set_eval_bool, acc );
        set_add( &acc->set, "switchboard_keepalives", "false", set_eval_bool, acc );
}

static void msn_login( account_t *acc )
{
        struct im_connection *ic = imcb_new( acc );
        struct msn_data *md = g_new0( struct msn_data, 1 );
        
        ic->proto_data = md;
        md->fd = -1;
        
        if( strchr( acc->user, '@' ) == NULL )
        {
                imcb_error( ic, "Invalid account name" );
                imc_logout( ic, FALSE );
                return;
        }
        
        imcb_log( ic, "Connecting" );
        
        md->fd = proxy_connect( "messenger.hotmail.com", 1863, msn_ns_connected, ic );
        if( md->fd < 0 )
        {
                imcb_error( ic, "Could not connect to server" );
                imc_logout( ic, TRUE );
                return;
        }
        
        md->ic = ic;
        md->away_state = msn_away_state_list;
        
        msn_connections = g_slist_append( msn_connections, ic );
}

static void msn_logout( struct im_connection *ic )
{
        struct msn_data *md = ic->proto_data;
        GSList *l;
        
        if( md )
        {
                /** Disabling MSN ft support for now.
                while( md->filetransfers ) {
                        imcb_file_canceled( md->filetransfers->data, "Closing connection" );
                }
                */
                
                if( md->fd >= 0 )
                        closesocket( md->fd );
                
                if( md->handler )
                {
                        if( md->handler->rxq ) g_free( md->handler->rxq );
                        if( md->handler->cmd_text ) g_free( md->handler->cmd_text );
                        g_free( md->handler );
                }
                
                while( md->switchboards )
                        msn_sb_destroy( md->switchboards->data );
                
                msn_msgq_purge( ic, &md->msgq );
                
                while( md->groupcount > 0 )
                        g_free( md->grouplist[--md->groupcount] );
                g_free( md->grouplist );
                
                while( md->grpq )
                {
                        struct msn_groupadd *ga = md->grpq->data;
                        g_free( ga->group );
                        g_free( ga->who );
                        g_free( ga );
                        md->grpq = g_slist_remove( md->grpq, ga );
                }
                
                g_free( md );
        }
        
        for( l = ic->permit; l; l = l->next )
                g_free( l->data );
        g_slist_free( ic->permit );
        
        for( l = ic->deny; l; l = l->next )
                g_free( l->data );
        g_slist_free( ic->deny );
        
        msn_connections = g_slist_remove( msn_connections, ic );
}

static int msn_buddy_msg( struct im_connection *ic, char *who, char *message, int away )
{
        struct msn_switchboard *sb;
        
#ifdef DEBUG
        if( strcmp( who, "raw" ) == 0 )
        {
                msn_write( ic, message, strlen( message ) );
                msn_write( ic, "\r\n", 2 );
        }
        else
#endif
        if( ( sb = msn_sb_by_handle( ic, who ) ) )
        {
                return( msn_sb_sendmessage( sb, message ) );
        }
        else
        {
                struct msn_message *m;
                
                /* Create a message. We have to arrange a usable switchboard, and send the message later. */
                m = g_new0( struct msn_message, 1 );
                m->who = g_strdup( who );
                m->text = g_strdup( message );
                
                return msn_sb_write_msg( ic, m );
        }
        
        return( 0 );
}

static GList *msn_away_states( struct im_connection *ic )
{
        static GList *l = NULL;
        int i;
        
        if( l == NULL )
                for( i = 0; *msn_away_state_list[i].code; i ++ )
                        if( *msn_away_state_list[i].name )
                                l = g_list_append( l, (void*) msn_away_state_list[i].name );
        
        return l;
}

static void msn_set_away( struct im_connection *ic, char *state, char *message )
{
        char buf[1024];
        struct msn_data *md = ic->proto_data;
        
        if( state == NULL )
                md->away_state = msn_away_state_list;
        else if( ( md->away_state = msn_away_state_by_name( state ) ) == NULL )
                md->away_state = msn_away_state_list + 1;
        
        g_snprintf( buf, sizeof( buf ), "CHG %d %s\r\n", ++md->trId, md->away_state->code );
        msn_write( ic, buf, strlen( buf ) );
}

static void msn_set_my_name( struct im_connection *ic, char *info )
{
        msn_set_display_name( ic, info );
}

static void msn_get_info(struct im_connection *ic, char *who) 
{
        /* Just make an URL and let the user fetch the info */
        imcb_log( ic, "%s\n%s: %s%s", _("User Info"), _("For now, fetch yourself"), PROFILE_URL, who );
}

static void msn_add_buddy( struct im_connection *ic, char *who, char *group )
{
        struct bee_user *bu = bee_user_by_handle( ic->bee, ic, who );
        
        msn_buddy_list_add( ic, "FL", who, who, group );
        if( bu && bu->group )
                msn_buddy_list_remove( ic, "FL", who, bu->group->name );
}

static void msn_remove_buddy( struct im_connection *ic, char *who, char *group )
{
        msn_buddy_list_remove( ic, "FL", who, NULL );
}

static void msn_chat_msg( struct groupchat *c, char *message, int flags )
{
        struct msn_switchboard *sb = msn_sb_by_chat( c );
        
        if( sb )
                msn_sb_sendmessage( sb, message );
        /* FIXME: Error handling (although this can't happen unless something's
           already severely broken) disappeared here! */
}

static void msn_chat_invite( struct groupchat *c, char *who, char *message )
{
        struct msn_switchboard *sb = msn_sb_by_chat( c );
        char buf[1024];
        
        if( sb )
        {
                g_snprintf( buf, sizeof( buf ), "CAL %d %s\r\n", ++sb->trId, who );
                msn_sb_write( sb, buf, strlen( buf ) );
        }
}

static void msn_chat_leave( struct groupchat *c )
{
        struct msn_switchboard *sb = msn_sb_by_chat( c );
        
        if( sb )
                msn_sb_write( sb, "OUT\r\n", 5 );
}

static struct groupchat *msn_chat_with( struct im_connection *ic, char *who )
{
        struct msn_switchboard *sb;
        struct groupchat *c = imcb_chat_new( ic, who );
        
        if( ( sb = msn_sb_by_handle( ic, who ) ) )
        {
                debug( "Converting existing switchboard to %s to a groupchat", who );
                return msn_sb_to_chat( sb );
        }
        else
        {
                struct msn_message *m;
                
                /* Create a magic message. This is quite hackish, but who cares? :-P */
                m = g_new0( struct msn_message, 1 );
                m->who = g_strdup( who );
                m->text = g_strdup( GROUPCHAT_SWITCHBOARD_MESSAGE );
                
                msn_sb_write_msg( ic, m );

                return c;
        }
}

static void msn_keepalive( struct im_connection *ic )
{
        msn_write( ic, "PNG\r\n", strlen( "PNG\r\n" ) );
}

static void msn_add_permit( struct im_connection *ic, char *who )
{
        msn_buddy_list_add( ic, "AL", who, who, NULL );
}

static void msn_rem_permit( struct im_connection *ic, char *who )
{
        msn_buddy_list_remove( ic, "AL", who, NULL );
}

static void msn_add_deny( struct im_connection *ic, char *who )
{
        struct msn_switchboard *sb;
        
        msn_buddy_list_add( ic, "BL", who, who, NULL );
        
        /* If there's still a conversation with this person, close it. */
        if( ( sb = msn_sb_by_handle( ic, who ) ) )
        {
                msn_sb_destroy( sb );
        }
}

static void msn_rem_deny( struct im_connection *ic, char *who )
{
        msn_buddy_list_remove( ic, "BL", who, NULL );
}

static int msn_send_typing( struct im_connection *ic, char *who, int typing )
{
        struct bee_user *bu = bee_user_by_handle( ic->bee, ic, who );
        
        if( !( bu->flags & BEE_USER_ONLINE ) )
                return 0;
        else if( typing & OPT_TYPING )
                return( msn_buddy_msg( ic, who, TYPING_NOTIFICATION_MESSAGE, 0 ) );
        else
                return 1;
}

static char *set_eval_display_name( set_t *set, char *value )
{
        account_t *acc = set->data;
        struct im_connection *ic = acc->ic;
        
        /* Allow any name if we're offline. */
        if( ic == NULL )
                return value;
        
        if( strlen( value ) > 129 )
        {
                imcb_log( ic, "Maximum name length exceeded" );
                return NULL;
        }
        
        /* Returning NULL would be better, because the server still has to
           confirm the name change. However, it looks a bit confusing to the
           user. */
        return msn_set_display_name( ic, value ) ? value : NULL;
}

void msn_initmodule()
{
        struct prpl *ret = g_new0(struct prpl, 1);
        
        ret->name = "msn";
    ret->mms = 1409;         /* this guess taken from libotr UPGRADING file */
        ret->login = msn_login;
        ret->init = msn_init;
        ret->logout = msn_logout;
        ret->buddy_msg = msn_buddy_msg;
        ret->away_states = msn_away_states;
        ret->set_away = msn_set_away;
        ret->get_info = msn_get_info;
        ret->set_my_name = msn_set_my_name;
        ret->add_buddy = msn_add_buddy;
        ret->remove_buddy = msn_remove_buddy;
        ret->chat_msg = msn_chat_msg;
        ret->chat_invite = msn_chat_invite;
        ret->chat_leave = msn_chat_leave;
        ret->chat_with = msn_chat_with;
        ret->keepalive = msn_keepalive;
        ret->add_permit = msn_add_permit;
        ret->rem_permit = msn_rem_permit;
        ret->add_deny = msn_add_deny;
        ret->rem_deny = msn_rem_deny;
        ret->send_typing = msn_send_typing;
        ret->handle_cmp = g_strcasecmp;
        //ret->transfer_request = msn_ftp_transfer_request;

        register_protocol(ret);
}