source: protocols/jabber/message.c @ 1065dd4

/***************************************************************************\
*                                                                           *
*  BitlBee - An IRC to IM gateway                                           *
*  Jabber module - Handling of message(s) (tags), etc                       *
*                                                                           *
*  Copyright 2006-2012 Wilmer van der Gaast <wilmer@gaast.net>              *
*                                                                           *
*  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 along  *
*  with this program; if not, write to the Free Software Foundation, Inc.,  *
*  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.              *
*                                                                           *
\***************************************************************************/

#include "jabber.h"

xt_status jabber_pkt_message( struct xt_node *node, gpointer data )
{
        struct im_connection *ic = data;
        char *from = xt_find_attr( node, "from" );
        char *type = xt_find_attr( node, "type" );
        char *id = xt_find_attr( node, "id" );
        struct xt_node *body = xt_find_node( node->children, "body" ), *c;
        struct xt_node *request = xt_find_node( node->children, "request" );
        struct jabber_buddy *bud = NULL;
        char *s, *room = NULL, *reason = NULL;
        
        if( !from )
                return XT_HANDLED; /* Consider this packet corrupted. */

        if( request && id )
        {
                /* Send a message receipt (XEP-0184), looking like this:
                 * <message
                 *  from='kingrichard@royalty.england.lit/throne'
                 *  id='bi29sg183b4v'
                 *  to='northumberland@shakespeare.lit/westminster'>
                 *  <received xmlns='urn:xmpp:receipts' id='richard2-4.1.247'/>
                 * </message> */
                struct xt_node *received, *receipt;
                
                received = xt_new_node( "received", NULL, NULL );
                xt_add_attr( received, "xmlns", XMLNS_RECEIPTS );
                xt_add_attr( received, "id", id );
                receipt = jabber_make_packet( "message", NULL, from, received );

                jabber_write_packet( ic, receipt );
                xt_free_node( receipt );
        }
        
        bud = jabber_buddy_by_jid( ic, from, GET_BUDDY_EXACT );
        
        if( type && strcmp( type, "error" ) == 0 )
        {
                /* Handle type=error packet. */
        }
        else if( type && from && strcmp( type, "groupchat" ) == 0 )
        {
                jabber_chat_pkt_message( ic, bud, node );
        }
        else /* "chat", "normal", "headline", no-type or whatever. Should all be pretty similar. */
        {
                GString *fullmsg = g_string_new( "" );

                for( c = node->children; ( c = xt_find_node( c, "x" ) ); c = c->next )
                {
                        char *ns = xt_find_attr( c, "xmlns" );
                        struct xt_node *inv;
                        
                        if( ns && strcmp( ns, XMLNS_MUC_USER ) == 0 &&
                            ( inv = xt_find_node( c->children, "invite" ) ) )
                        {
                                /* This is an invitation. Set some vars which
                                   will be passed to imcb_chat_invite() below. */
                                room = from;
                                if( ( from = xt_find_attr( inv, "from" ) ) == NULL )
                                        from = room;
                                if( ( inv = xt_find_node( inv->children, "reason" ) ) && inv->text_len > 0 )
                                        reason = inv->text;
                        }
                }
                
                if( ( s = strchr( from, '/' ) ) )
                {
                        if( bud )
                        {
                                bud->last_msg = time( NULL );
                                from = bud->ext_jid ? bud->ext_jid : bud->bare_jid;
                        }
                        else
                                *s = 0; /* We need to generate a bare JID now. */
                }
                
                if( type && strcmp( type, "headline" ) == 0 )
                {
                        if( ( c = xt_find_node( node->children, "subject" ) ) && c->text_len > 0 )
                                g_string_append_printf( fullmsg, "Headline: %s\n", c->text );
                        
                        /* <x xmlns="jabber:x:oob"><url>http://....</url></x> can contain a URL, it seems. */
                        for( c = node->children; c; c = c->next )
                        {
                                struct xt_node *url;
                                
                                if( ( url = xt_find_node( c->children, "url" ) ) && url->text_len > 0 )
                                        g_string_append_printf( fullmsg, "URL: %s\n", url->text );
                        }
                }
                else if( ( c = xt_find_node( node->children, "subject" ) ) && c->text_len > 0 &&
                         ( !bud || !( bud->flags & JBFLAG_HIDE_SUBJECT ) ) )
                {
                        g_string_append_printf( fullmsg, "<< \002BitlBee\002 - Message with subject: %s >>\n", c->text );
                        if( bud )
                                bud->flags |= JBFLAG_HIDE_SUBJECT;
                }
                else if( bud && !c )
                {
                        /* Yeah, possibly we're hiding changes to this field now. But nobody uses
                           this for anything useful anyway, except GMail when people reply to an
                           e-mail via chat, repeating the same subject all the time. I don't want
                           to have to remember full subject strings for everyone. */
                        bud->flags &= ~JBFLAG_HIDE_SUBJECT;
                }
                
                if( body && body->text_len > 0 ) /* Could be just a typing notification. */
                        fullmsg = g_string_append( fullmsg, body->text );
                
                if( fullmsg->len > 0 )
                        imcb_buddy_msg( ic, from, fullmsg->str,
                                        0, jabber_get_timestamp( node ) );
                if( room )
                        imcb_chat_invite( ic, room, from, reason );
                
                g_string_free( fullmsg, TRUE );
                
                /* Handling of incoming typing notifications. */
                if( bud == NULL )
                {
                        /* Can't handle these for unknown buddies. */
                }
                else if( xt_find_node( node->children, "composing" ) )
                {
                        bud->flags |= JBFLAG_DOES_XEP85;
                        imcb_buddy_typing( ic, from, OPT_TYPING );
                }
                /* No need to send a "stopped typing" signal when there's a message. */
                else if( xt_find_node( node->children, "active" ) && ( body == NULL ) )
                {
                        bud->flags |= JBFLAG_DOES_XEP85;
                        imcb_buddy_typing( ic, from, 0 );
                }
                else if( xt_find_node( node->children, "paused" ) )
                {
                        bud->flags |= JBFLAG_DOES_XEP85;
                        imcb_buddy_typing( ic, from, OPT_THINKING );
                }
                
                if( s )
                        *s = '/'; /* And convert it back to a full JID. */
        }
        
        return XT_HANDLED;
}