1 /*****************************************************************************
2 * podcast.c : podcast playlist imports
3 *****************************************************************************
4 * Copyright (C) 2005-2009 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 *****************************************************************************/
31 #include <vlc_common.h>
32 #include <vlc_demux.h>
41 xml_reader_t *p_xml_reader;
44 /*****************************************************************************
46 *****************************************************************************/
47 static int Demux( demux_t *p_demux);
48 static int Control( demux_t *p_demux, int i_query, va_list args );
50 /*****************************************************************************
51 * Import_podcast: main import function
52 *****************************************************************************/
53 int Import_podcast( vlc_object_t *p_this )
55 demux_t *p_demux = (demux_t *)p_this;
57 if( !demux_IsForced( p_demux, "podcast" ) )
60 STANDARD_DEMUX_INIT_MSG( "using podcast reader" );
61 p_demux->p_sys->psz_prefix = FindPrefix( p_demux );
62 p_demux->p_sys->p_xml = NULL;
63 p_demux->p_sys->p_xml_reader = NULL;
68 /*****************************************************************************
69 * Deactivate: frees unused data
70 *****************************************************************************/
71 void Close_podcast( vlc_object_t *p_this )
73 demux_t *p_demux = (demux_t *)p_this;
74 demux_sys_t *p_sys = p_demux->p_sys;
76 free( p_sys->psz_prefix );
77 if( p_sys->p_xml_reader ) xml_ReaderDelete( p_sys->p_xml, p_sys->p_xml_reader );
78 if( p_sys->p_xml ) xml_Delete( p_sys->p_xml );
82 /* "specs" : http://phobos.apple.com/static/iTunesRSS.html */
83 static int Demux( demux_t *p_demux )
85 demux_sys_t *p_sys = p_demux->p_sys;
92 xml_reader_t *p_xml_reader;
93 char *psz_elname = NULL;
94 char *psz_item_mrl = NULL;
95 char *psz_item_size = NULL;
96 char *psz_item_type = NULL;
97 char *psz_item_name = NULL;
98 char *psz_item_date = NULL;
99 char *psz_item_author = NULL;
100 char *psz_item_category = NULL;
101 char *psz_item_duration = NULL;
102 char *psz_item_keywords = NULL;
103 char *psz_item_subtitle = NULL;
104 char *psz_item_summary = NULL;
106 input_item_t *p_input;
110 p_xml = p_sys->p_xml = xml_Create( p_demux );
111 if( !p_xml ) return -1;
113 /* psz_elname = stream_ReadLine( p_demux->s );
114 if( psz_elname ) free( psz_elname );
117 p_xml_reader = xml_ReaderCreate( p_xml, p_demux->s );
118 if( !p_xml_reader ) return -1;
119 p_sys->p_xml_reader = p_xml_reader;
122 /* check root node */
123 if( xml_ReaderRead( p_xml_reader ) != 1 )
125 msg_Err( p_demux, "invalid file (no root node)" );
129 while( xml_ReaderNodeType( p_xml_reader ) == XML_READER_NONE )
131 if( xml_ReaderRead( p_xml_reader ) != 1 )
133 msg_Err( p_demux, "invalid file (no root node)" );
138 if( xml_ReaderNodeType( p_xml_reader ) != XML_READER_STARTELEM ||
139 ( psz_elname = xml_ReaderName( p_xml_reader ) ) == NULL ||
140 strcmp( psz_elname, "rss" ) )
142 msg_Err( p_demux, "invalid root node %i, %s",
143 xml_ReaderNodeType( p_xml_reader ), psz_elname );
147 FREENULL( psz_elname );
149 while( (i_ret = xml_ReaderRead( p_xml_reader )) == 1 )
152 i_type = xml_ReaderNodeType( p_xml_reader );
160 case XML_READER_STARTELEM:
162 // Read the element name
164 psz_elname = xml_ReaderName( p_xml_reader );
165 if( !psz_elname ) return -1;
167 if( !strcmp( psz_elname, "item" ) )
171 else if( !strcmp( psz_elname, "image" ) )
176 // Read the attributes
177 while( xml_ReaderNextAttr( p_xml_reader ) == VLC_SUCCESS )
179 char *psz_name = xml_ReaderName( p_xml_reader );
180 char *psz_value = xml_ReaderValue( p_xml_reader );
181 if( !psz_name || !psz_value )
189 if( !strcmp( psz_elname, "enclosure" ) )
191 if( !strcmp( psz_name, "url" ) )
193 free( psz_item_mrl );
194 psz_item_mrl = strdup( psz_value );
196 else if( !strcmp( psz_name, "length" ) )
198 free( psz_item_size );
199 psz_item_size = strdup( psz_value );
201 else if( !strcmp( psz_name, "type" ) )
203 free( psz_item_type );
204 psz_item_type = strdup( psz_value );
207 msg_Dbg( p_demux,"unhandled attribure %s in element %s",
208 psz_name, psz_elname );
211 msg_Dbg( p_demux,"unhandled attribure %s in element %s",
212 psz_name, psz_elname );
219 case XML_READER_TEXT:
221 char *psz_text = xml_ReaderValue( p_xml_reader );
223 #define SET_DATA( field, name ) \
224 else if( !strcmp( psz_elname, name ) ) \
228 /* item specific meta data */
231 if( !strcmp( psz_elname, "title" ) )
233 psz_item_name = psz_text;
235 else if( !strcmp( psz_elname, "itunes:author" ) ||
236 !strcmp( psz_elname, "author" ) )
237 { /* <author> isn't standard iTunes podcast stuff */
238 psz_item_author = psz_text;
240 else if( !strcmp( psz_elname, "itunes:summary" ) ||
241 !strcmp( psz_elname, "description" ) )
242 { /* <description> isn't standard iTunes podcast stuff */
243 psz_item_summary = psz_text;
245 SET_DATA( psz_item_date, "pubDate" )
246 SET_DATA( psz_item_category, "itunes:category" )
247 SET_DATA( psz_item_duration, "itunes:duration" )
248 SET_DATA( psz_item_keywords, "itunes:keywords" )
249 SET_DATA( psz_item_subtitle, "itunes:subtitle" )
255 /* toplevel meta data */
256 else if( b_image == false )
258 if( !strcmp( psz_elname, "title" ) )
260 input_item_SetName( p_current_input, psz_text );
262 #define ADD_GINFO( info, name ) \
263 else if( !strcmp( psz_elname, name ) ) \
265 input_item_AddInfo( p_current_input, _("Podcast Info"), \
266 _( info ), "%s", psz_text ); \
268 ADD_GINFO( "Podcast Link", "link" )
269 ADD_GINFO( "Podcast Copyright", "copyright" )
270 ADD_GINFO( "Podcast Category", "itunes:category" )
271 ADD_GINFO( "Podcast Keywords", "itunes:keywords" )
272 ADD_GINFO( "Podcast Subtitle", "itunes:subtitle" )
274 else if( !strcmp( psz_elname, "itunes:summary" ) ||
275 !strcmp( psz_elname, "description" ) )
276 { /* <description> isn't standard iTunes podcast stuff */
277 input_item_AddInfo( p_current_input,
278 _( "Podcast Info" ), _( "Podcast Summary" ),
285 msg_Dbg( p_demux, "unhandled text in element '%s'",
292 case XML_READER_ENDELEM:
294 // Read the element name
296 psz_elname = xml_ReaderName( p_xml_reader );
297 if( !psz_elname ) return -1;
298 if( !strcmp( psz_elname, "item" ) )
300 if( psz_item_mrl == NULL )
302 msg_Err( p_demux, "invalid XML (no enclosure markup)" );
306 p_input = input_item_New( p_demux, psz_item_mrl, psz_item_name );
307 if( p_input == NULL ) break;
308 #define ADD_INFO( info, field ) \
309 if( field ) { input_item_AddInfo( p_input, \
310 _( "Podcast Info" ), _( info ), "%s", field ); }
311 ADD_INFO( "Podcast Publication Date", psz_item_date );
312 ADD_INFO( "Podcast Author", psz_item_author );
313 ADD_INFO( "Podcast Subcategory", psz_item_category );
314 ADD_INFO( "Podcast Duration", psz_item_duration );
315 ADD_INFO( "Podcast Keywords", psz_item_keywords );
316 ADD_INFO( "Podcast Subtitle", psz_item_subtitle );
317 ADD_INFO( "Podcast Summary", psz_item_summary );
318 ADD_INFO( "Podcast Type", psz_item_type );
322 input_item_AddInfo( p_input,
328 input_item_AddSubItem( p_current_input, p_input );
329 vlc_gc_decref( p_input );
330 FREENULL( psz_item_name );
331 FREENULL( psz_item_mrl );
332 FREENULL( psz_item_size );
333 FREENULL( psz_item_type );
334 FREENULL( psz_item_date );
335 FREENULL( psz_item_author );
336 FREENULL( psz_item_category );
337 FREENULL( psz_item_duration );
338 FREENULL( psz_item_keywords );
339 FREENULL( psz_item_subtitle );
340 FREENULL( psz_item_summary );
343 else if( !strcmp( psz_elname, "image" ) )
348 psz_elname = strdup( "" );
357 msg_Warn( p_demux, "error while parsing data" );
362 HANDLE_PLAY_AND_RELEASE;
363 return 0; /* Needed for correct operation of go back */
366 static int Control( demux_t *p_demux, int i_query, va_list args )
368 VLC_UNUSED(p_demux); VLC_UNUSED(i_query); VLC_UNUSED(args);