1 /*****************************************************************************
2 * bonjour.c: Bonjour services discovery module
3 *****************************************************************************
4 * Copyright (C) 2005 the VideoLAN team
7 * Authors: Jon Lech Johansen <jon@nanocrew.net>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
27 #include <stdlib.h> /* malloc(), free() */
32 #include <avahi-client/client.h>
34 # include <avahi-client/publish.h>
35 # include <avahi-client/lookup.h>
37 #include <avahi-common/simple-watch.h>
38 #include <avahi-common/malloc.h>
39 #include <avahi-common/error.h>
41 /*****************************************************************************
43 *****************************************************************************/
46 static int Open ( vlc_object_t * );
47 static void Close( vlc_object_t * );
50 set_shortname( "Bonjour" );
51 set_description( _("Bonjour services") );
52 set_category( CAT_PLAYLIST );
53 set_subcategory( SUBCAT_PLAYLIST_SD );
54 set_capability( "services_discovery", 0 );
55 set_callbacks( Open, Close );
58 /*****************************************************************************
60 *****************************************************************************/
62 struct services_discovery_sys_t
65 playlist_item_t *p_node_cat, *p_node_one;
66 playlist_t *p_playlist;
68 AvahiSimplePoll *simple_poll;
70 AvahiServiceBrowser *sb;
73 /*****************************************************************************
75 *****************************************************************************/
78 static void Run ( services_discovery_t *p_intf );
80 /*****************************************************************************
82 *****************************************************************************/
83 static void client_callback( AvahiClient *c, AvahiClientState state,
86 services_discovery_t *p_sd = ( services_discovery_t* )userdata;
87 services_discovery_sys_t *p_sys = p_sd->p_sys;
90 if( state == AVAHI_CLIENT_FAILURE &&
91 (avahi_client_errno(c) == AVAHI_ERR_DISCONNECTED) )
93 if( state == AVAHI_CLIENT_DISCONNECTED )
96 msg_Err( p_sd, "avahi client disconnected" );
97 avahi_simple_poll_quit( p_sys->simple_poll );
101 /*****************************************************************************
103 *****************************************************************************/
104 static void resolve_callback(
105 AvahiServiceResolver *r,
106 AvahiIfIndex interface,
107 AvahiProtocol protocol,
108 AvahiResolverEvent event,
112 const char *host_name,
113 const AvahiAddress *address,
115 AvahiStringList *txt,
117 AvahiLookupResultFlags flags,
121 services_discovery_t *p_sd = ( services_discovery_t* )userdata;
122 services_discovery_sys_t *p_sys = p_sd->p_sys;
125 if( event == AVAHI_RESOLVER_FAILURE )
127 if( event == AVAHI_RESOLVER_TIMEOUT )
131 "failed to resolve service '%s' of type '%s' in domain '%s'",
132 name, type, domain );
134 else if( event == AVAHI_RESOLVER_FOUND )
137 char *psz_uri = NULL;
138 char *psz_addr = NULL;
139 AvahiStringList *asl = NULL;
140 input_item_t *p_input = NULL;
142 msg_Dbg( p_sd, "service '%s' of type '%s' in domain '%s'",
143 name, type, domain );
145 avahi_address_snprint(a, (sizeof(a)/sizeof(a[0]))-1, address);
146 if( protocol == AVAHI_PROTO_INET6 )
147 asprintf( &psz_addr, "[%s]", a );
150 asl = avahi_string_list_find( txt, "path" );
156 if( avahi_string_list_get_pair( asl, &key, &value, &size ) == 0 &&
159 asprintf( &psz_uri, "http://%s:%d%s",
160 psz_addr != NULL ? psz_addr : a, port, value );
163 avahi_free( (void *)key );
165 avahi_free( (void *)value );
169 asprintf( &psz_uri, "http://%s:%d",
170 psz_addr != NULL ? psz_addr : a, port );
173 if( psz_addr != NULL )
174 free( (void *)psz_addr );
176 if( psz_uri != NULL )
178 p_input = input_ItemNewExt( p_sd, psz_uri, name, 0, NULL, -1 );
179 free( (void *)psz_uri );
181 if( p_input != NULL )
183 playlist_item_t *p_item;
184 p_item = playlist_NodeAddInput( p_sys->p_playlist, p_input,
186 PLAYLIST_APPEND, PLAYLIST_END );
187 p_item->i_flags &= ~PLAYLIST_SKIP_FLAG;
188 p_item->i_flags &= ~PLAYLIST_SAVE_FLAG;
189 p_item = playlist_NodeAddInput( p_sys->p_playlist, p_input,
191 PLAYLIST_APPEND, PLAYLIST_END );
192 p_item->i_flags &= ~PLAYLIST_SKIP_FLAG;
193 p_item->i_flags &= ~PLAYLIST_SAVE_FLAG;
197 avahi_service_resolver_free( r );
200 /*****************************************************************************
202 *****************************************************************************/
203 static void browse_callback(
204 AvahiServiceBrowser *b,
205 AvahiIfIndex interface,
206 AvahiProtocol protocol,
207 AvahiBrowserEvent event,
212 AvahiLookupResultFlags flags,
216 services_discovery_t *p_sd = ( services_discovery_t* )userdata;
217 services_discovery_sys_t *p_sys = p_sd->p_sys;
219 if( event == AVAHI_BROWSER_NEW )
221 if( avahi_service_resolver_new( p_sys->client, interface, protocol,
222 name, type, domain, AVAHI_PROTO_UNSPEC,
226 resolve_callback, userdata ) == NULL )
228 msg_Err( p_sd, "failed to resolve service '%s': %s", name,
229 avahi_strerror( avahi_client_errno( p_sys->client ) ) );
234 /** \todo Store the input id and search it, rather than searching the items */
235 playlist_item_t *p_item;
236 p_item = playlist_ChildSearchName( p_sys->p_node_cat, name );
238 msg_Err( p_sd, "failed to find service '%s' in playlist", name );
241 playlist_LockDeleteAllFromInput( p_sys->p_playlist,
242 p_item->p_input->i_id );
247 /*****************************************************************************
248 * Open: initialize and create stuff
249 *****************************************************************************/
250 static int Open( vlc_object_t *p_this )
252 services_discovery_t *p_sd = ( services_discovery_t* )p_this;
253 services_discovery_sys_t *p_sys;
254 playlist_view_t *p_view;
258 p_sd->p_sys = p_sys = (services_discovery_sys_t *)malloc(
259 sizeof( services_discovery_sys_t ) );
260 if( p_sd->p_sys == NULL )
262 msg_Err( p_sd, "out of memory" );
266 memset( p_sys, 0, sizeof(*p_sys) );
268 p_sys->simple_poll = avahi_simple_poll_new();
269 if( p_sys->simple_poll == NULL )
271 msg_Err( p_sd, "failed to create avahi simple poll" );
275 p_sys->client = avahi_client_new( avahi_simple_poll_get(p_sys->simple_poll),
279 client_callback, p_sd, &err );
280 if( p_sys->client == NULL )
282 msg_Err( p_sd, "failed to create avahi client: %s",
283 avahi_strerror( err ) );
287 p_sys->sb = avahi_service_browser_new( p_sys->client, AVAHI_IF_UNSPEC,
289 "_vlc-http._tcp", NULL,
293 browse_callback, p_sd );
294 if( p_sys->sb == NULL )
296 msg_Err( p_sd, "failed to create avahi service browser" );
300 /* Create our playlist node */
301 p_sys->p_playlist = (playlist_t *)vlc_object_find( p_sd,
304 if( !p_sys->p_playlist )
306 msg_Warn( p_sd, "unable to find playlist, cancelling");
310 playlist_NodesCreate( p_sys->p_playlist, _("Bonjour"),
311 &p_sys->p_node_cat,&p_sys->p_node_one,
318 if( p_sys->p_playlist != NULL )
319 vlc_object_release( p_sys->p_playlist );
320 if( p_sys->sb != NULL )
321 avahi_service_browser_free( p_sys->sb );
322 if( p_sys->client != NULL )
323 avahi_client_free( p_sys->client );
324 if( p_sys->simple_poll != NULL )
325 avahi_simple_poll_free( p_sys->simple_poll );
327 free( (void *)p_sys );
332 /*****************************************************************************
334 *****************************************************************************/
335 static void Close( vlc_object_t *p_this )
337 services_discovery_t *p_sd = ( services_discovery_t* )p_this;
338 services_discovery_sys_t *p_sys = p_sd->p_sys;
340 avahi_service_browser_free( p_sys->sb );
341 avahi_client_free( p_sys->client );
342 avahi_simple_poll_free( p_sys->simple_poll );
344 playlist_NodeDelete( p_sys->p_playlist, p_sys->p_node_one, VLC_TRUE, VLC_TRUE );
345 playlist_NodeDelete( p_sys->p_playlist, p_sys->p_node_cat, VLC_TRUE, VLC_TRUE );
346 vlc_object_release( p_sys->p_playlist );
351 /*****************************************************************************
353 *****************************************************************************/
354 static void Run( services_discovery_t *p_sd )
356 services_discovery_sys_t *p_sys = p_sd->p_sys;
358 while( !p_sd->b_die )
360 if( avahi_simple_poll_iterate( p_sys->simple_poll, 100 ) != 0 )
362 msg_Err( p_sd, "poll iterate failed" );