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 *****************************************************************************/
28 #include <vlc_demux.h>
36 playlist_t *p_playlist;
38 xml_reader_t *p_xml_reader;
41 /*****************************************************************************
43 *****************************************************************************/
44 static int Demux( demux_t *p_demux);
45 static int Control( demux_t *p_demux, int i_query, va_list args );
47 /*****************************************************************************
48 * Import_podcast: main import function
49 *****************************************************************************/
50 int E_(Import_podcast)( vlc_object_t *p_this )
52 demux_t *p_demux = (demux_t *)p_this;
54 if( !demux2_IsForced( p_demux, "podcast" ) )
57 STANDARD_DEMUX_INIT_MSG( "using podcast reader" );
58 p_demux->p_sys->psz_prefix = E_(FindPrefix)( p_demux );
59 p_demux->p_sys->p_playlist = NULL;
60 p_demux->p_sys->p_xml = NULL;
61 p_demux->p_sys->p_xml_reader = NULL;
66 /*****************************************************************************
67 * Deactivate: frees unused data
68 *****************************************************************************/
69 void E_(Close_podcast)( vlc_object_t *p_this )
71 demux_t *p_demux = (demux_t *)p_this;
72 demux_sys_t *p_sys = p_demux->p_sys;
74 if( p_sys->psz_prefix ) free( p_sys->psz_prefix );
75 if( p_sys->p_playlist ) vlc_object_release( p_sys->p_playlist );
76 if( p_sys->p_xml_reader ) xml_ReaderDelete( p_sys->p_xml, p_sys->p_xml_reader );
77 if( p_sys->p_xml ) xml_Delete( p_sys->p_xml );
81 /* "specs" : http://phobos.apple.com/static/iTunesRSS.html */
82 static int Demux( demux_t *p_demux )
84 demux_sys_t *p_sys = p_demux->p_sys;
86 vlc_bool_t b_item = VLC_FALSE;
87 vlc_bool_t b_image = VLC_FALSE;
91 xml_reader_t *p_xml_reader;
92 char *psz_elname = NULL;
93 char *psz_item_mrl = NULL;
94 char *psz_item_size = NULL;
95 char *psz_item_type = NULL;
96 char *psz_item_name = NULL;
97 char *psz_item_date = NULL;
98 char *psz_item_author = NULL;
99 char *psz_item_category = NULL;
100 char *psz_item_duration = NULL;
101 char *psz_item_keywords = NULL;
102 char *psz_item_subtitle = NULL;
103 char *psz_item_summary = NULL;
105 input_item_t *p_input;
109 p_xml = p_sys->p_xml = xml_Create( p_demux );
110 if( !p_xml ) return -1;
112 /* psz_elname = stream_ReadLine( p_demux->s );
113 if( psz_elname ) free( psz_elname );
116 p_xml_reader = xml_ReaderCreate( p_xml, p_demux->s );
117 if( !p_xml_reader ) return -1;
118 p_sys->p_xml_reader = p_xml_reader;
121 /* check root node */
122 if( xml_ReaderRead( p_xml_reader ) != 1 )
124 msg_Err( p_demux, "invalid file (no root node)" );
127 if( xml_ReaderNodeType( p_xml_reader ) != XML_READER_STARTELEM ||
128 ( psz_elname = xml_ReaderName( p_xml_reader ) ) == NULL ||
129 strcmp( psz_elname, "rss" ) )
131 msg_Err( p_demux, "invalid root node %i, %s",
132 xml_ReaderNodeType( p_xml_reader ), psz_elname );
133 if( psz_elname ) free( psz_elname );
136 free( psz_elname ); psz_elname = NULL;
138 while( (i_ret = xml_ReaderRead( p_xml_reader )) == 1 )
141 i_type = xml_ReaderNodeType( p_xml_reader );
149 case XML_READER_STARTELEM:
151 // Read the element name
152 if( psz_elname ) free( psz_elname );
153 psz_elname = xml_ReaderName( p_xml_reader );
154 if( !psz_elname ) return -1;
156 if( !strcmp( psz_elname, "item" ) )
160 else if( !strcmp( psz_elname, "image" ) )
165 // Read the attributes
166 while( xml_ReaderNextAttr( p_xml_reader ) == VLC_SUCCESS )
168 char *psz_name = xml_ReaderName( p_xml_reader );
169 char *psz_value = xml_ReaderValue( p_xml_reader );
170 if( !psz_name || !psz_value ) return -1;
171 if( !strcmp( psz_elname, "enclosure" ) &&
172 !strcmp( psz_name, "url" ) )
174 psz_item_mrl = strdup( psz_value );
176 else if( !strcmp( psz_elname, "enclosure" ) &&
177 !strcmp( psz_name, "length" ) )
179 psz_item_size = strdup( psz_value );
181 else if( !strcmp( psz_elname, "enclosure" ) &&
182 !strcmp( psz_name, "type" ) )
184 psz_item_type = strdup( psz_value );
188 msg_Dbg( p_demux,"unhandled attribure %s in element %s",
189 psz_name, psz_elname );
196 case XML_READER_TEXT:
198 #define SET_DATA( field, name ) else if( b_item == VLC_TRUE \
199 && !strcmp( psz_elname, name ) ) \
201 field = strdup( psz_text ); \
203 char *psz_text = xml_ReaderValue( p_xml_reader );
204 /* item specific meta data */
205 if( b_item == VLC_TRUE && !strcmp( psz_elname, "title" ) )
207 psz_item_name = strdup( psz_text );
209 else if( b_item == VLC_TRUE
210 && ( !strcmp( psz_elname, "itunes:author" )
211 ||!strcmp( psz_elname, "author" ) ) )
212 { /* <author> isn't standard iTunes podcast stuff */
213 psz_item_author = strdup( psz_text );
215 else if( b_item == VLC_TRUE
216 && ( !strcmp( psz_elname, "itunes:summary" )
217 ||!strcmp( psz_elname, "description" ) ) )
218 { /* <description> isn't standard iTunes podcast stuff */
219 psz_item_summary = strdup( psz_text );
221 SET_DATA( psz_item_date, "pubDate" )
222 SET_DATA( psz_item_category, "itunes:category" )
223 SET_DATA( psz_item_duration, "itunes:duration" )
224 SET_DATA( psz_item_keywords, "itunes:keywords" )
225 SET_DATA( psz_item_subtitle, "itunes:subtitle" )
226 /* toplevel meta data */
227 else if( b_item == VLC_FALSE && b_image == VLC_FALSE
228 && !strcmp( psz_elname, "title" ) )
230 input_item_SetName( p_current_input, psz_text );
232 #define ADD_GINFO( info, name ) \
233 else if( !b_item && !b_image && !strcmp( psz_elname, name ) ) \
235 input_ItemAddInfo( p_current_input, _("Podcast Info"), \
236 _( info ), "%s", psz_text ); \
238 ADD_GINFO( "Podcast Link", "link" )
239 ADD_GINFO( "Podcast Copyright", "copyright" )
240 ADD_GINFO( "Podcast Category", "itunes:category" )
241 ADD_GINFO( "Podcast Keywords", "itunes:keywords" )
242 ADD_GINFO( "Podcast Subtitle", "itunes:subtitle" )
244 else if( b_item == VLC_FALSE && b_image == VLC_FALSE
245 && ( !strcmp( psz_elname, "itunes:summary" )
246 ||!strcmp( psz_elname, "description" ) ) )
247 { /* <description> isn't standard iTunes podcast stuff */
248 input_ItemAddInfo( p_current_input,
249 _( "Podcast Info" ), _( "Podcast Summary" ),
254 msg_Dbg( p_demux, "unhandled text in element '%s'",
261 case XML_READER_ENDELEM:
263 // Read the element name
265 psz_elname = xml_ReaderName( p_xml_reader );
266 if( !psz_elname ) return -1;
267 if( !strcmp( psz_elname, "item" ) )
269 p_input = input_ItemNewExt( p_playlist, psz_item_mrl,
270 psz_item_name, 0, NULL, -1 );
271 if( p_input == NULL ) break;
272 #define ADD_INFO( info, field ) \
273 if( field ) { input_ItemAddInfo( p_input, \
274 _( "Podcast Info" ), _( info ), "%s", field ); }
275 ADD_INFO( "Podcast Publication Date", psz_item_date );
276 ADD_INFO( "Podcast Author", psz_item_author );
277 ADD_INFO( "Podcast Subcategory", psz_item_category );
278 ADD_INFO( "Podcast Duration", psz_item_duration );
279 ADD_INFO( "Podcast Keywords", psz_item_keywords );
280 ADD_INFO( "Podcast Subtitle", psz_item_subtitle );
281 ADD_INFO( "Podcast Summary", psz_item_summary );
282 ADD_INFO( "Podcast Type", psz_item_type );
285 input_ItemAddInfo( p_input,
291 input_ItemAddSubItem( p_current_input, p_input );
292 FREENULL( psz_item_name );
293 FREENULL( psz_item_mrl );
294 FREENULL( psz_item_size );
295 FREENULL( psz_item_type );
296 FREENULL( psz_item_date );
297 FREENULL( psz_item_author );
298 FREENULL( psz_item_category );
299 FREENULL( psz_item_duration );
300 FREENULL( psz_item_keywords );
301 FREENULL( psz_item_subtitle );
302 FREENULL( psz_item_summary );
305 else if( !strcmp( psz_elname, "image" ) )
310 psz_elname = strdup("");
319 msg_Warn( p_demux, "error while parsing data" );
322 HANDLE_PLAY_AND_RELEASE;
323 return 0; /* Needed for correct operation of go back */
326 static int Control( demux_t *p_demux, int i_query, va_list args )