Index: protocols/msn/msn.c
===================================================================
--- protocols/msn/msn.c	(revision b7d3cc34f68dab7b8f7d0777711317b334fc2219)
+++ protocols/msn/msn.c	(revision b7d3cc34f68dab7b8f7d0777711317b334fc2219)
@@ -0,0 +1,402 @@
+  /********************************************************************\
+  * 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"
+
+static struct prpl *my_protocol = NULL;
+
+static void msn_login( struct aim_user *acct )
+{
+	struct gaim_connection *gc = new_gaim_conn( acct );
+	struct msn_data *md = g_new0( struct msn_data, 1 );
+	
+	set_login_progress( gc, 1, "Connecting" );
+	
+	gc->proto_data = md;
+	md->fd = -1;
+	
+	if( strchr( acct->username, '@' ) == NULL )
+	{
+		hide_login_progress( gc, "Invalid account name" );
+		signoff( gc );
+		return;
+	}
+	
+	md->fd = proxy_connect( "messenger.hotmail.com", 1863, msn_ns_connected, gc );
+	if( md->fd < 0 )
+	{
+		hide_login_progress( gc, "Could not connect to server" );
+		signoff( gc );
+	}
+	else
+	{
+		md->gc = gc;
+		md->away_state = msn_away_state_list;
+		
+		msn_connections = g_slist_append( msn_connections, gc );
+	}
+}
+
+static void msn_close( struct gaim_connection *gc )
+{
+	struct msn_data *md = gc->proto_data;
+	GSList *l;
+	
+	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 );
+	
+	if( md->msgq )
+	{
+		struct msn_message *m;
+		
+		for( l = md->msgq; l; l = l->next )
+		{
+			m = l->data;
+			g_free( m->who );
+			g_free( m->text );
+			g_free( m );
+		}
+		g_slist_free( md->msgq );
+		
+		serv_got_crap( gc, "Warning: Closing down MSN connection with unsent message(s), you'll have to resend them." );
+	}
+	
+	for( l = gc->permit; l; l = l->next )
+		g_free( l->data );
+	g_slist_free( gc->permit );
+	
+	for( l = gc->deny; l; l = l->next )
+		g_free( l->data );
+	g_slist_free( gc->deny );
+	
+	g_free( md );
+	
+	msn_connections = g_slist_remove( msn_connections, gc );
+}
+
+static int msn_send_im( struct gaim_connection *gc, char *who, char *message, int len, int away )
+{
+	struct msn_switchboard *sb;
+	struct msn_data *md = gc->proto_data;
+	
+	if( ( sb = msn_sb_by_handle( gc, who ) ) )
+	{
+		return( msn_sb_sendmessage( sb, message ) );
+	}
+	else
+	{
+		struct msn_message *m;
+		char buf[1024];
+		
+		/* 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 );
+		
+		/* FIXME: *CHECK* the reliability of using spare sb's! */
+		if( ( sb = msn_sb_spare( gc ) ) )
+		{
+			debug( "Trying to use a spare switchboard to message %s", who );
+			
+			sb->who = g_strdup( who );
+			g_snprintf( buf, sizeof( buf ), "CAL %d %s\r\n", ++sb->trId, who );
+			if( msn_sb_write( sb, buf, strlen( buf ) ) )
+			{
+				/* He/She should join the switchboard soon, let's queue the message. */
+				sb->msgq = g_slist_append( sb->msgq, m );
+				return( 1 );
+			}
+		}
+		
+		debug( "Creating a new switchboard to message %s", who );
+		
+		/* If we reach this line, there was no spare switchboard, so let's make one. */
+		g_snprintf( buf, sizeof( buf ), "XFR %d SB\r\n", ++md->trId );
+		if( !msn_write( gc, buf, strlen( buf ) ) )
+		{
+			g_free( m->who );
+			g_free( m->text );
+			g_free( m );
+			
+			return( 0 );
+		}
+		
+		/* And queue the message to md. We'll pick it up when the switchboard comes up. */
+		md->msgq = g_slist_append( md->msgq, m );
+		
+		/* FIXME: If the switchboard creation fails, the message will not be sent. */
+		
+		return( 1 );
+	}
+	
+	return( 0 );
+}
+
+static GList *msn_away_states( struct gaim_connection *gc )
+{
+	GList *l = NULL;
+	int i;
+	
+	for( i = 0; msn_away_state_list[i].number > -1; i ++ )
+		l = g_list_append( l, msn_away_state_list[i].name );
+	
+	return( l );
+}
+
+static char *msn_get_status_string( struct gaim_connection *gc, int number )
+{
+	struct msn_away_state *st = msn_away_state_by_number( number );
+	
+	if( st )
+		return( st->name );
+	else
+		return( "" );
+}
+
+static void msn_set_away( struct gaim_connection *gc, char *state, char *message )
+{
+	char buf[1024];
+	struct msn_data *md = gc->proto_data;
+	struct msn_away_state *st;
+	
+	if( strcmp( state, GAIM_AWAY_CUSTOM ) == 0 )
+		st = msn_away_state_by_name( "Away" );
+	else
+		st = msn_away_state_by_name( state );
+	
+	if( !st ) st = msn_away_state_list;
+	md->away_state = st;
+	
+	g_snprintf( buf, sizeof( buf ), "CHG %d %s\r\n", ++md->trId, st->code );
+	msn_write( gc, buf, strlen( buf ) );
+}
+
+static void msn_set_info( struct gaim_connection *gc, char *info )
+{
+	int i;
+	char buf[1024], *fn, *s;
+	struct msn_data *md = gc->proto_data;
+	
+	if( strlen( info ) > 129 )
+	{
+		do_error_dialog( gc, "Maximum name length exceeded", "MSN" );
+		return;
+	}
+	
+	/* Of course we could use http_encode() here, but when we encode
+	   every character, the server is less likely to complain about the
+	   chosen name. However, the MSN server doesn't seem to like escaped
+	   non-ASCII chars, so we keep those unescaped. */
+	s = fn = g_new0( char, strlen( info ) * 3 + 1 );
+	for( i = 0; info[i]; i ++ )
+		if( info[i] & 128 )
+		{
+			*s = info[i];
+			s ++;
+		}
+		else
+		{
+			g_snprintf( s, 4, "%%%02X", info[i] );
+			s += 3;
+		}
+	
+	g_snprintf( buf, sizeof( buf ), "REA %d %s %s\r\n", ++md->trId, gc->username, fn );
+	msn_write( gc, buf, strlen( buf ) );
+	g_free( fn );
+}
+
+static void msn_get_info(struct gaim_connection *gc, char *who) 
+{
+	/* Just make an URL and let the user fetch the info */
+	serv_got_crap( gc, "%s\n%s: %s%s", _("User Info"), _("For now, fetch yourself"), PROFILE_URL, who );
+}
+
+static void msn_add_buddy( struct gaim_connection *gc, char *who )
+{
+	msn_buddy_list_add( gc, "FL", who, who );
+}
+
+static void msn_remove_buddy( struct gaim_connection *gc, char *who, char *group )
+{
+	msn_buddy_list_remove( gc, "FL", who );
+}
+
+static int msn_chat_send( struct gaim_connection *gc, int id, char *message )
+{
+	struct msn_switchboard *sb = msn_sb_by_id( gc, id );
+	
+	if( sb )
+		return( msn_sb_sendmessage( sb, message ) );
+	else
+		return( 0 );
+}
+
+static void msn_chat_invite( struct gaim_connection *gc, int id, char *msg, char *who )
+{
+	struct msn_switchboard *sb = msn_sb_by_id( gc, id );
+	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 gaim_connection *gc, int id )
+{
+	struct msn_switchboard *sb = msn_sb_by_id( gc, id );
+	
+	if( sb )
+		msn_sb_write( sb, "OUT\r\n", 5 );
+}
+
+static int msn_chat_open( struct gaim_connection *gc, char *who )
+{
+	struct msn_switchboard *sb;
+	struct msn_data *md = gc->proto_data;
+	char buf[1024];
+	
+	if( ( sb = msn_sb_by_handle( gc, who ) ) )
+	{
+		debug( "Converting existing switchboard to %s to a groupchat", who );
+		msn_sb_to_chat( sb );
+		return( 1 );
+	}
+	else
+	{
+		struct msn_message *m;
+		
+		if( ( sb = msn_sb_spare( gc ) ) )
+		{
+			debug( "Trying to reuse an existing switchboard as a groupchat with %s", who );
+			g_snprintf( buf, sizeof( buf ), "CAL %d %s\r\n", ++sb->trId, who );
+			if( msn_sb_write( sb, buf, strlen( buf ) ) )
+			{
+				msn_sb_to_chat( sb );
+				return( 1 );
+			}
+		}
+		
+		/* If the stuff above failed for some reason: */
+		debug( "Creating a new switchboard to groupchat with %s", who );
+		
+		/* Request a new switchboard. */
+		g_snprintf( buf, sizeof( buf ), "XFR %d SB\r\n", ++md->trId );
+		if( !msn_write( gc, buf, strlen( buf ) ) )
+			return( 0 );
+		
+		/* 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 );
+		
+		/* Queue the magic message and cross your fingers. */
+		md->msgq = g_slist_append( md->msgq, m );
+		
+		return( 1 );
+	}
+	
+	return( 0 );
+}
+
+static void msn_keepalive( struct gaim_connection *gc )
+{
+	msn_write( gc, "PNG\r\n", strlen( "PNG\r\n" ) );
+}
+
+static void msn_add_permit( struct gaim_connection *gc, char *who )
+{
+	msn_buddy_list_add( gc, "AL", who, who );
+}
+
+static void msn_rem_permit( struct gaim_connection *gc, char *who )
+{
+	msn_buddy_list_remove( gc, "AL", who );
+}
+
+static void msn_add_deny( struct gaim_connection *gc, char *who )
+{
+	struct msn_switchboard *sb;
+	
+	msn_buddy_list_add( gc, "BL", who, who );
+	
+	/* If there's still a conversation with this person, close it. */
+	if( ( sb = msn_sb_by_handle( gc, who ) ) )
+	{
+		msn_sb_destroy( sb );
+	}
+}
+
+static void msn_rem_deny( struct gaim_connection *gc, char *who )
+{
+	msn_buddy_list_remove( gc, "BL", who );
+}
+
+static int msn_send_typing( struct gaim_connection *gc, char *who, int typing )
+{
+	if( typing )
+		return( msn_send_im( gc, who, TYPING_NOTIFICATION_MESSAGE, strlen( TYPING_NOTIFICATION_MESSAGE ), 0 ) );
+	else
+		return( 1 );
+}
+
+void msn_init(struct prpl *ret)
+{
+	ret->protocol = PROTO_MSN;
+	ret->login = msn_login;
+	ret->close = msn_close;
+	ret->send_im = msn_send_im;
+	ret->away_states = msn_away_states;
+	ret->get_status_string = msn_get_status_string;
+	ret->set_away = msn_set_away;
+	ret->set_info = msn_set_info;
+	ret->get_info = msn_get_info;
+	ret->add_buddy = msn_add_buddy;
+	ret->remove_buddy = msn_remove_buddy;
+	ret->chat_send = msn_chat_send;
+	ret->chat_invite = msn_chat_invite;
+	ret->chat_leave = msn_chat_leave;
+	ret->chat_open = msn_chat_open;
+	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;
+
+	my_protocol = ret;
+}
