1 /*****************************************************************************
2 * podcast.c : podcast playlist imports
3 *****************************************************************************
4 * Copyright (C) 2005 the VideoLAN team
7 * Authors: Antoine Cellerier <dionoea -at- videolan -dot- org>
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 *****************************************************************************/
32 #include <vlc_demux.h>
40 playlist_t *p_playlist;
42 xml_reader_t *p_xml_reader;
45 /*****************************************************************************
47 *****************************************************************************/
48 static int Demux( demux_t *p_demux);
49 static int Control( demux_t *p_demux, int i_query, va_list args );
51 /*****************************************************************************
52 * Import_podcast: main import function
53 *****************************************************************************/
54 int E_(Import_podcast)( vlc_object_t *p_this )
56 demux_t *p_demux = (demux_t *)p_this;
58 if( !demux2_IsForced( p_demux, "podcast" ) )
61 STANDARD_DEMUX_INIT_MSG( "using podcast reader" );
62 p_demux->p_sys->psz_prefix = E_(FindPrefix)( p_demux );
63 p_demux->p_sys->p_playlist = NULL;
64 p_demux->p_sys->p_xml = NULL;
65 p_demux->p_sys->p_xml_reader = NULL;
70 /*****************************************************************************
71 * Deactivate: frees unused data
72 *****************************************************************************/
73 void E_(Close_podcast)( vlc_object_t *p_this )
75 demux_t *p_demux = (demux_t *)p_this;
76 demux_sys_t *p_sys = p_demux->p_sys;
78 if( p_sys->psz_prefix ) free( p_sys->psz_prefix );
79 if( p_sys->p_playlist ) vlc_object_release( p_sys->p_playlist );
80 if( p_sys->p_xml_reader ) xml_ReaderDelete( p_sys->p_xml, p_sys->p_xml_reader );
81 if( p_sys->p_xml ) xml_Delete( p_sys->p_xml );
85 /* "specs" : http://phobos.apple.com/static/iTunesRSS.html */
86 static int Demux( demux_t *p_demux )
88 demux_sys_t *p_sys = p_demux->p_sys;
90 vlc_bool_t b_item = VLC_FALSE;
91 vlc_bool_t b_image = VLC_FALSE;
95 xml_reader_t *p_xml_reader;
96 char *psz_elname = NULL;
97 char *psz_item_mrl = NULL;
98 char *psz_item_size = NULL;
99 char *psz_item_type = NULL;
100 char *psz_item_name = NULL;
101 char *psz_item_date = NULL;
102 char *psz_item_author = NULL;
103 char *psz_item_category = NULL;
104 char *psz_item_duration = NULL;
105 char *psz_item_keywords = NULL;
106 char *psz_item_subtitle = NULL;
107 char *psz_item_summary = NULL;
109 input_item_t *p_input;
113 p_xml = p_sys->p_xml = xml_Create( p_demux );
114 if( !p_xml ) return -1;
116 /* psz_elname = stream_ReadLine( p_demux->s );
117 if( psz_elname ) free( psz_elname );
120 p_xml_reader = xml_ReaderCreate( p_xml, p_demux->s );
121 if( !p_xml_reader ) return -1;
122 p_sys->p_xml_reader = p_xml_reader;
125 /* check root node */
126 if( xml_ReaderRead( p_xml_reader ) != 1 )
128 msg_Err( p_demux, "invalid file (no root node)" );
131 if( xml_ReaderNodeType( p_xml_reader ) != XML_READER_STARTELEM ||
132 ( psz_elname = xml_ReaderName( p_xml_reader ) ) == NULL ||
133 strcmp( psz_elname, "rss" ) )
135 msg_Err( p_demux, "invalid root node %i, %s",
136 xml_ReaderNodeType( p_xml_reader ), psz_elname );
137 if( psz_elname ) free( psz_elname );
140 free( psz_elname ); psz_elname = NULL;
142 while( (i_ret = xml_ReaderRead( p_xml_reader )) == 1 )
145 i_type = xml_ReaderNodeType( p_xml_reader );
153 case XML_READER_STARTELEM:
155 // Read the element name
156 if( psz_elname ) free( psz_elname );
157 psz_elname = xml_ReaderName( p_xml_reader );
158 if( !psz_elname ) return -1;
160 if( !strcmp( psz_elname, "item" ) )
164 else if( !strcmp( psz_elname, "image" ) )
169 // Read the attributes
170 while( xml_ReaderNextAttr( p_xml_reader ) == VLC_SUCCESS )
172 char *psz_name = xml_ReaderName( p_xml_reader );
173 char *psz_value = xml_ReaderValue( p_xml_reader );
174 if( !psz_name || !psz_value ) return -1;
175 if( !strcmp( psz_elname, "enclosure" ) &&
176 !strcmp( psz_name, "url" ) )
178 psz_item_mrl = strdup( psz_value );
180 else if( !strcmp( psz_elname, "enclosure" ) &&
181 !strcmp( psz_name, "length" ) )
183 psz_item_size = strdup( psz_value );
185 else if( !strcmp( psz_elname, "enclosure" ) &&
186 !strcmp( psz_name, "type" ) )
188 psz_item_type = strdup( psz_value );
192 msg_Dbg( p_demux,"unhandled attribure %s in element %s",
193 psz_name, psz_elname );
200 case XML_READER_TEXT:
202 #define SET_DATA( field, name ) else if( b_item == VLC_TRUE \
203 && !strcmp( psz_elname, name ) ) \
205 field = strdup( psz_text ); \
207 char *psz_text = xml_ReaderValue( p_xml_reader );
208 /* item specific meta data */
209 if( b_item == VLC_TRUE && !strcmp( psz_elname, "title" ) )
211 psz_item_name = strdup( psz_text );
213 else if( b_item == VLC_TRUE
214 && ( !strcmp( psz_elname, "itunes:author" )
215 ||!strcmp( psz_elname, "author" ) ) )
216 { /* <author> isn't standard iTunes podcast stuff */
217 psz_item_author = strdup( psz_text );
219 else if( b_item == VLC_TRUE
220 && ( !strcmp( psz_elname, "itunes:summary" )
221 ||!strcmp( psz_elname, "description" ) ) )
222 { /* <description> isn't standard iTunes podcast stuff */
223 psz_item_summary = strdup( psz_text );
225 SET_DATA( psz_item_date, "pubDate" )
226 SET_DATA( psz_item_category, "itunes:category" )
227 SET_DATA( psz_item_duration, "itunes:duration" )
228 SET_DATA( psz_item_keywords, "itunes:keywords" )
229 SET_DATA( psz_item_subtitle, "itunes:subtitle" )
230 /* toplevel meta data */
231 else if( b_item == VLC_FALSE && b_image == VLC_FALSE
232 && !strcmp( psz_elname, "title" ) )
234 input_item_SetName( p_current_input, psz_text );
236 #define ADD_GINFO( info, name ) \
237 else if( !b_item && !b_image && !strcmp( psz_elname, name ) ) \
239 input_ItemAddInfo( p_current_input, _("Podcast Info"), \
240 _( info ), "%s", psz_text ); \
242 ADD_GINFO( "Podcast Link", "link" )
243 ADD_GINFO( "Podcast Copyright", "copyright" )
244 ADD_GINFO( "Podcast Category", "itunes:category" )
245 ADD_GINFO( "Podcast Keywords", "itunes:keywords" )
246 ADD_GINFO( "Podcast Subtitle", "itunes:subtitle" )
248 else if( b_item == VLC_FALSE && b_image == VLC_FALSE
249 && ( !strcmp( psz_elname, "itunes:summary" )
250 ||!strcmp( psz_elname, "description" ) ) )
251 { /* <description> isn't standard iTunes podcast stuff */
252 input_ItemAddInfo( p_current_input,
253 _( "Podcast Info" ), _( "Podcast Summary" ),
258 msg_Dbg( p_demux, "unhandled text in element '%s'",
265 case XML_READER_ENDELEM:
267 // Read the element name
269 psz_elname = xml_ReaderName( p_xml_reader );
270 if( !psz_elname ) return -1;
271 if( !strcmp( psz_elname, "item" ) )
273 p_input = input_ItemNewExt( p_playlist, psz_item_mrl,
274 psz_item_name, 0, NULL, -1 );
275 if( p_input == NULL ) break;
276 #define ADD_INFO( info, field ) \
277 if( field ) { input_ItemAddInfo( p_input, \
278 _( "Podcast Info" ), _( info ), "%s", field ); }
279 ADD_INFO( "Podcast Publication Date", psz_item_date );
280 ADD_INFO( "Podcast Author", psz_item_author );
281 ADD_INFO( "Podcast Subcategory", psz_item_category );
282 ADD_INFO( "Podcast Duration", psz_item_duration );
283 ADD_INFO( "Podcast Keywords", psz_item_keywords );
284 ADD_INFO( "Podcast Subtitle", psz_item_subtitle );
285 ADD_INFO( "Podcast Summary", psz_item_summary );
286 ADD_INFO( "Podcast Type", psz_item_type );
289 input_ItemAddInfo( p_input,
295 input_ItemAddSubItem( p_current_input, p_input );
296 vlc_gc_decref( p_input );
297 FREENULL( psz_item_name );
298 FREENULL( psz_item_mrl );
299 FREENULL( psz_item_size );
300 FREENULL( psz_item_type );
301 FREENULL( psz_item_date );
302 FREENULL( psz_item_author );
303 FREENULL( psz_item_category );
304 FREENULL( psz_item_duration );
305 FREENULL( psz_item_keywords );
306 FREENULL( psz_item_subtitle );
307 FREENULL( psz_item_summary );
310 else if( !strcmp( psz_elname, "image" ) )
315 psz_elname = strdup("");
324 msg_Warn( p_demux, "error while parsing data" );
327 HANDLE_PLAY_AND_RELEASE;
328 return 0; /* Needed for correct operation of go back */
331 static int Control( demux_t *p_demux, int i_query, va_list args )
333 VLC_UNUSED(p_demux); VLC_UNUSED(i_query); VLC_UNUSED(args);