1 /*****************************************************************************
2 * rss.c : rss/atom feed display video plugin for vlc
3 *****************************************************************************
4 * Copyright (C) 2003-2006 the VideoLAN team
7 * Authors: Antoine Cellerier <dionoea -at- videolan -dot- org>
8 * RĂ©mi Duraffort <ivoire -at- videolan -dot- org>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
25 /*****************************************************************************
26 * Atom : http://www.ietf.org/rfc/rfc4287.txt
27 * RSS : http://www.rssboard.org/rss-specification
28 *****************************************************************************/
30 /*****************************************************************************
32 *****************************************************************************/
38 #include <vlc_common.h>
39 #include <vlc_plugin.h>
41 #include <vlc_filter.h>
42 #include <vlc_block.h>
45 #include <vlc_stream.h>
47 #include <vlc_charset.h>
49 #include <vlc_image.h>
53 /*****************************************************************************
55 *****************************************************************************/
56 static int CreateFilter ( vlc_object_t * );
57 static void DestroyFilter( vlc_object_t * );
58 static subpicture_t *Filter( filter_t *, mtime_t );
60 static struct rss_feed_t *FetchRSS( filter_t * );
61 static void FreeRSS( struct rss_feed_t *, int );
62 static int ParseUrls( filter_t *, char * );
64 static void Fetch( void * );
66 static const int pi_color_values[] = {
67 0xf0000000, 0x00000000, 0x00808080, 0x00C0C0C0,
68 0x00FFFFFF, 0x00800000, 0x00FF0000, 0x00FF00FF, 0x00FFFF00,
69 0x00808000, 0x00008000, 0x00008080, 0x0000FF00, 0x00800080,
70 0x00000080, 0x000000FF, 0x0000FFFF};
71 static const char *const ppsz_color_descriptions[] = {
72 N_("Default"), N_("Black"),
73 N_("Gray"), N_("Silver"), N_("White"), N_("Maroon"), N_("Red"),
74 N_("Fuchsia"), N_("Yellow"), N_("Olive"), N_("Green"),
75 N_("Teal"), N_("Lime"), N_("Purple"), N_("Navy"), N_("Blue"),
78 /*****************************************************************************
79 * filter_sys_t: rss filter descriptor
80 *****************************************************************************/
82 typedef struct rss_item_t
85 char *psz_description;
89 typedef struct rss_feed_t
93 char *psz_description;
105 vlc_timer_t timer; /* Timer to refresh the rss feeds */
108 int i_xoff, i_yoff; /* offsets for the display string in the video window */
109 int i_pos; /* permit relative positioning (top, bottom, left, right, center) */
113 char *psz_marquee; /* marquee string */
115 text_style_t *p_style; /* font control */
130 #define MSG_TEXT N_("Feed URLs")
131 #define MSG_LONGTEXT N_("RSS/Atom feed '|' (pipe) separated URLs.")
132 #define SPEED_TEXT N_("Speed of feeds")
133 #define SPEED_LONGTEXT N_("Speed of the RSS/Atom feeds in microseconds (bigger is slower).")
134 #define LENGTH_TEXT N_("Max length")
135 #define LENGTH_LONGTEXT N_("Maximum number of characters displayed on the " \
137 #define TTL_TEXT N_("Refresh time")
138 #define TTL_LONGTEXT N_("Number of seconds between each forced refresh " \
139 "of the feeds. 0 means that the feeds are never updated." )
140 #define IMAGE_TEXT N_("Feed images")
141 #define IMAGE_LONGTEXT N_("Display feed images if available.")
143 #define POSX_TEXT N_("X offset")
144 #define POSX_LONGTEXT N_("X offset, from the left screen edge." )
145 #define POSY_TEXT N_("Y offset")
146 #define POSY_LONGTEXT N_("Y offset, down from the top." )
147 #define OPACITY_TEXT N_("Opacity")
148 #define OPACITY_LONGTEXT N_("Opacity (inverse of transparency) of " \
149 "overlay text. 0 = transparent, 255 = totally opaque." )
151 #define SIZE_TEXT N_("Font size, pixels")
152 #define SIZE_LONGTEXT N_("Font size, in pixels. Default is -1 (use default " \
155 #define COLOR_TEXT N_("Color")
156 #define COLOR_LONGTEXT N_("Color of the text that will be rendered on "\
157 "the video. This must be an hexadecimal (like HTML colors). The first two "\
158 "chars are for red, then green, then blue. #000000 = black, #FF0000 = red,"\
159 " #00FF00 = green, #FFFF00 = yellow (red + green), #FFFFFF = white" )
161 #define POS_TEXT N_("Text position")
162 #define POS_LONGTEXT N_( \
163 "You can enforce the text position on the video " \
164 "(0=center, 1=left, 2=right, 4=top, 8=bottom; you can " \
165 "also use combinations of these values, eg 6 = top-right).")
167 #define TITLE_TEXT N_("Title display mode")
168 #define TITLE_LONGTEXT N_("Title display mode. Default is 0 (hidden) if the feed has an image and feed images are enabled, 1 otherwise.")
170 static const int pi_pos_values[] = { 0, 1, 2, 4, 8, 5, 6, 9, 10 };
171 static const char *const ppsz_pos_descriptions[] =
172 { N_("Center"), N_("Left"), N_("Right"), N_("Top"), N_("Bottom"),
173 N_("Top-Left"), N_("Top-Right"), N_("Bottom-Left"), N_("Bottom-Right") };
181 static const int pi_title_modes[] = { default_title, hide_title, prepend_title, scroll_title };
182 static const char *const ppsz_title_modes[] =
183 { N_("Default"), N_("Don't show"), N_("Always visible"), N_("Scroll with feed") };
185 #define CFG_PREFIX "rss-"
187 /*****************************************************************************
189 *****************************************************************************/
191 set_capability( "sub filter", 1 )
192 set_shortname( "RSS / Atom" )
193 set_callbacks( CreateFilter, DestroyFilter )
194 set_category( CAT_VIDEO )
195 set_subcategory( SUBCAT_VIDEO_SUBPIC )
196 add_string( CFG_PREFIX "urls", NULL, NULL, MSG_TEXT, MSG_LONGTEXT, false )
198 set_section( N_("Position"), NULL )
199 add_integer( CFG_PREFIX "x", 0, NULL, POSX_TEXT, POSX_LONGTEXT, true )
200 add_integer( CFG_PREFIX "y", 0, NULL, POSY_TEXT, POSY_LONGTEXT, true )
201 add_integer( CFG_PREFIX "position", -1, NULL, POS_TEXT, POS_LONGTEXT, false )
202 change_integer_list( pi_pos_values, ppsz_pos_descriptions, NULL )
204 set_section( N_("Font"), NULL )
205 /* 5 sets the default to top [1] left [4] */
206 add_integer_with_range( CFG_PREFIX "opacity", 255, 0, 255, NULL,
207 OPACITY_TEXT, OPACITY_LONGTEXT, false )
208 add_integer( CFG_PREFIX "color", 0xFFFFFF, NULL, COLOR_TEXT, COLOR_LONGTEXT,
210 change_integer_list( pi_color_values, ppsz_color_descriptions, NULL )
211 add_integer( CFG_PREFIX "size", -1, NULL, SIZE_TEXT, SIZE_LONGTEXT, false )
213 set_section( N_("Misc"), NULL )
214 add_integer( CFG_PREFIX "speed", 100000, NULL, SPEED_TEXT, SPEED_LONGTEXT,
216 add_integer( CFG_PREFIX "length", 60, NULL, LENGTH_TEXT, LENGTH_LONGTEXT,
218 add_integer( CFG_PREFIX "ttl", 1800, NULL, TTL_TEXT, TTL_LONGTEXT, false )
219 add_bool( CFG_PREFIX "images", true, NULL, IMAGE_TEXT, IMAGE_LONGTEXT, false )
220 add_integer( CFG_PREFIX "title", default_title, NULL, TITLE_TEXT, TITLE_LONGTEXT, false )
221 change_integer_list( pi_title_modes, ppsz_title_modes, NULL )
223 set_description( N_("RSS and Atom feed display") )
224 add_shortcut( "rss" )
225 add_shortcut( "atom" )
228 static const char *const ppsz_filter_options[] = {
229 "urls", "x", "y", "position", "color", "size", "speed", "length",
230 "ttl", "images", "title", NULL
233 /*****************************************************************************
234 * CreateFilter: allocates RSS video filter
235 *****************************************************************************/
236 static int CreateFilter( vlc_object_t *p_this )
238 filter_t *p_filter = (filter_t *)p_this;
243 /* Allocate structure */
244 p_sys = p_filter->p_sys = malloc( sizeof( filter_sys_t ) );
248 config_ChainParse( p_filter, CFG_PREFIX, ppsz_filter_options,
251 /* Get the urls to parse: must be non empty */
252 psz_urls = var_CreateGetNonEmptyString( p_filter, CFG_PREFIX "urls" );
255 msg_Err( p_filter, "The list of urls must not be empty" );
260 /* Fill the p_sys structure with the configuration */
261 p_sys->i_title = var_CreateGetInteger( p_filter, CFG_PREFIX "title" );
262 p_sys->i_cur_feed = 0;
263 p_sys->i_cur_item = p_sys->i_title == scroll_title ? -1 : 0;
264 p_sys->i_cur_char = 0;
266 p_sys->p_feeds = NULL;
267 p_sys->i_speed = var_CreateGetInteger( p_filter, CFG_PREFIX "speed" );
268 p_sys->i_length = var_CreateGetInteger( p_filter, CFG_PREFIX "length" );
269 p_sys->b_images = var_CreateGetBool( p_filter, CFG_PREFIX "images" );
271 i_ttl = __MAX( 0, var_CreateGetInteger( p_filter, CFG_PREFIX "ttl" ) );
273 p_sys->psz_marquee = malloc( p_sys->i_length + 1 );
274 if( p_sys->psz_marquee == NULL )
280 p_sys->psz_marquee[p_sys->i_length] = '\0';
282 p_sys->p_style = text_style_New();
283 if( p_sys->p_style == NULL )
286 p_sys->i_xoff = var_CreateGetInteger( p_filter, CFG_PREFIX "x" );
287 p_sys->i_yoff = var_CreateGetInteger( p_filter, CFG_PREFIX "y" );
288 p_sys->i_pos = var_CreateGetInteger( p_filter, CFG_PREFIX "position" );
289 p_sys->p_style->i_font_alpha = 255 - var_CreateGetInteger( p_filter, CFG_PREFIX "opacity" );
290 p_sys->p_style->i_font_color = var_CreateGetInteger( p_filter, CFG_PREFIX "color" );
291 p_sys->p_style->i_font_size = var_CreateGetInteger( p_filter, CFG_PREFIX "size" );
293 if( p_sys->b_images && p_sys->p_style->i_font_size == -1 )
295 msg_Warn( p_filter, "rss-size wasn't specified. Feed images will thus be displayed without being resized" );
299 if( ParseUrls( p_filter, psz_urls ) )
303 vlc_mutex_init( &p_sys->lock );
304 p_filter->pf_sub_filter = Filter;
305 p_sys->last_date = (mtime_t)0;
306 p_sys->b_fetched = false;
308 /* Create and arm the timer */
309 if( vlc_timer_create( &p_sys->timer, Fetch, p_filter ) )
311 vlc_mutex_destroy( &p_sys->lock );
314 vlc_timer_schedule( p_sys->timer, false, 1,
315 (mtime_t)(i_ttl)*1000000 );
322 text_style_Delete( p_sys->p_style );
323 free( p_sys->psz_marquee );
328 /*****************************************************************************
329 * DestroyFilter: destroy RSS video filter
330 *****************************************************************************/
331 static void DestroyFilter( vlc_object_t *p_this )
333 filter_t *p_filter = (filter_t *)p_this;
334 filter_sys_t *p_sys = p_filter->p_sys;
336 vlc_timer_destroy( p_sys->timer );
337 vlc_mutex_destroy( &p_sys->lock );
339 text_style_Delete( p_sys->p_style );
340 free( p_sys->psz_marquee );
341 FreeRSS( p_sys->p_feeds, p_sys->i_feeds );
345 /****************************************************************************
346 * Filter: the whole thing
347 ****************************************************************************
348 * This function outputs subpictures at regular time intervals.
349 ****************************************************************************/
350 static subpicture_t *Filter( filter_t *p_filter, mtime_t date )
352 filter_sys_t *p_sys = p_filter->p_sys;
355 subpicture_region_t *p_region;
360 memset( &fmt, 0, sizeof(video_format_t) );
362 vlc_mutex_lock( &p_sys->lock );
364 /* Check if the feeds have been fetched and that we have some feeds */
365 /* TODO: check that we have items for each feeds */
366 if( !p_sys->b_fetched && p_sys->i_feeds > 0 )
368 vlc_mutex_unlock( &p_sys->lock );
373 + ( p_sys->i_cur_char == 0 && p_sys->i_cur_item == ( p_sys->i_title == scroll_title ? -1 : 0 ) ? 5 : 1 )
374 /* ( ... ? 5 : 1 ) means "wait 5 times more for the 1st char" */
375 * p_sys->i_speed > date )
377 vlc_mutex_unlock( &p_sys->lock );
381 p_sys->last_date = date;
383 if( p_sys->i_cur_item == -1 ? p_sys->p_feeds[p_sys->i_cur_feed].psz_title[p_sys->i_cur_char] == 0 : p_sys->p_feeds[p_sys->i_cur_feed].p_items[p_sys->i_cur_item].psz_title[p_sys->i_cur_char] == 0 )
385 p_sys->i_cur_char = 0;
387 if( p_sys->i_cur_item >= p_sys->p_feeds[p_sys->i_cur_feed].i_items )
389 if( p_sys->i_title == scroll_title )
390 p_sys->i_cur_item = -1;
392 p_sys->i_cur_item = 0;
393 p_sys->i_cur_feed = (p_sys->i_cur_feed + 1)%p_sys->i_feeds;
397 p_spu = filter_NewSubpicture( p_filter );
400 vlc_mutex_unlock( &p_sys->lock );
404 fmt.i_chroma = VLC_CODEC_TEXT;
406 p_spu->p_region = subpicture_region_New( &fmt );
407 if( !p_spu->p_region )
409 p_filter->pf_sub_buffer_del( p_filter, p_spu );
410 vlc_mutex_unlock( &p_sys->lock );
414 /* Generate the string that will be displayed. This string is supposed to
415 be p_sys->i_length characters long. */
416 i_item = p_sys->i_cur_item;
417 i_feed = p_sys->i_cur_feed;
418 p_feed = &p_sys->p_feeds[i_feed];
420 if( ( p_feed->p_pic && p_sys->i_title == default_title )
421 || p_sys->i_title == hide_title )
423 /* Don't display the feed's title if we have an image */
424 snprintf( p_sys->psz_marquee, p_sys->i_length, "%s",
425 p_sys->p_feeds[i_feed].p_items[i_item].psz_title
426 +p_sys->i_cur_char );
428 else if( ( !p_feed->p_pic && p_sys->i_title == default_title )
429 || p_sys->i_title == prepend_title )
431 snprintf( p_sys->psz_marquee, p_sys->i_length, "%s : %s",
432 p_sys->p_feeds[i_feed].psz_title,
433 p_sys->p_feeds[i_feed].p_items[i_item].psz_title
434 +p_sys->i_cur_char );
436 else /* scrolling title */
439 snprintf( p_sys->psz_marquee, p_sys->i_length, "%s : %s",
440 p_sys->p_feeds[i_feed].psz_title + p_sys->i_cur_char,
441 p_sys->p_feeds[i_feed].p_items[i_item+1].psz_title );
443 snprintf( p_sys->psz_marquee, p_sys->i_length, "%s",
444 p_sys->p_feeds[i_feed].p_items[i_item].psz_title
445 +p_sys->i_cur_char );
448 while( strlen( p_sys->psz_marquee ) < (unsigned int)p_sys->i_length )
451 if( i_item == p_sys->p_feeds[i_feed].i_items ) break;
452 snprintf( strchr( p_sys->psz_marquee, 0 ),
453 p_sys->i_length - strlen( p_sys->psz_marquee ),
455 p_sys->p_feeds[i_feed].p_items[i_item].psz_title );
458 /* Calls to snprintf might split multibyte UTF8 chars ...
459 * which freetype doesn't like. */
461 char *a = strdup( p_sys->psz_marquee );
463 char *b = p_sys->psz_marquee;
464 EnsureUTF8( p_sys->psz_marquee );
465 /* we want to use ' ' instead of '?' for erroneous chars */
468 if( *b != *a ) *b = ' ';
474 p_spu->p_region->psz_text = strdup(p_sys->psz_marquee);
475 if( p_sys->p_style->i_font_size > 0 )
476 p_spu->p_region->fmt.i_visible_height = p_sys->p_style->i_font_size;
477 p_spu->i_start = date;
479 p_spu->b_ephemer = true;
481 /* where to locate the string: */
482 if( p_sys->i_pos < 0 )
483 { /* set to an absolute xy */
484 p_spu->p_region->i_align = OSD_ALIGN_LEFT | OSD_ALIGN_TOP;
485 p_spu->b_absolute = true;
488 { /* set to one of the 9 relative locations */
489 p_spu->p_region->i_align = p_sys->i_pos;
490 p_spu->b_absolute = false;
493 p_spu->p_region->p_style = text_style_Duplicate( p_sys->p_style );
497 /* Display the feed's image */
498 picture_t *p_pic = p_feed->p_pic;
499 video_format_t fmt_out;
501 memset( &fmt_out, 0, sizeof(video_format_t) );
503 fmt_out.i_chroma = VLC_CODEC_YUVA;
504 fmt_out.i_sar_num = fmt_out.i_sar_den = 1;
506 fmt_out.i_visible_width = p_pic->p[Y_PLANE].i_visible_pitch;
508 fmt_out.i_visible_height = p_pic->p[Y_PLANE].i_visible_lines;
510 p_region = subpicture_region_New( &fmt_out );
513 msg_Err( p_filter, "cannot allocate SPU region" );
517 p_region->i_x = p_sys->i_xoff;
518 p_region->i_y = p_sys->i_yoff;
519 /* FIXME the copy is probably not needed anymore */
520 picture_Copy( p_region->p_picture, p_pic );
521 p_spu->p_region->p_next = p_region;
524 /* Offset text to display right next to the image */
525 p_spu->p_region->i_x = p_pic->p[Y_PLANE].i_visible_pitch;
528 vlc_mutex_unlock( &p_sys->lock );
532 /****************************************************************************
533 * RSS related functions
534 ****************************************************************************
535 * You should always lock the p_filter mutex before using any of these
537 ***************************************************************************/
539 #undef LoadImage /* do not conflict with Win32 API */
541 /****************************************************************************
542 * download and resize image located at psz_url
543 ***************************************************************************/
544 static picture_t *LoadImage( filter_t *p_filter, const char *psz_url )
546 filter_sys_t *p_sys = p_filter->p_sys;
547 video_format_t fmt_in;
548 video_format_t fmt_out;
550 picture_t *p_pic = NULL;
551 image_handler_t *p_handler = image_HandlerCreate( p_filter );
553 memset( &fmt_in, 0, sizeof(video_format_t) );
554 memset( &fmt_out, 0, sizeof(video_format_t) );
556 fmt_out.i_chroma = VLC_CODEC_YUVA;
557 p_orig = image_ReadUrl( p_handler, psz_url, &fmt_in, &fmt_out );
561 msg_Warn( p_filter, "Unable to read image %s", psz_url );
563 else if( p_sys->p_style->i_font_size > 0 )
566 fmt_in.i_chroma = VLC_CODEC_YUVA;
567 fmt_in.i_height = p_orig->p[Y_PLANE].i_visible_lines;
568 fmt_in.i_width = p_orig->p[Y_PLANE].i_visible_pitch;
569 fmt_out.i_width = p_orig->p[Y_PLANE].i_visible_pitch
570 *p_sys->p_style->i_font_size/p_orig->p[Y_PLANE].i_visible_lines;
571 fmt_out.i_height = p_sys->p_style->i_font_size;
573 p_pic = image_Convert( p_handler, p_orig, &fmt_in, &fmt_out );
574 picture_Release( p_orig );
577 msg_Warn( p_filter, "Error while converting %s", psz_url );
585 image_HandlerDelete( p_handler );
590 /****************************************************************************
591 * remove all ' ' '\t' '\n' '\r' characters from the begining and end of the
593 ***************************************************************************/
594 static char *removeWhiteChars( const char *psz_src )
596 char *psz_src2,*psz_clean, *psz_clean2;
597 psz_src2 = psz_clean = strdup( psz_src );
600 while( ( *psz_clean == ' ' || *psz_clean == '\t'
601 || *psz_clean == '\n' || *psz_clean == '\r' )
602 && *psz_clean != '\0' )
606 i = strlen( psz_clean );
608 ( psz_clean[i] == ' ' || psz_clean[i] == '\t'
609 || psz_clean[i] == '\n' || psz_clean[i] == '\r' ) );
610 psz_clean[i+1] = '\0';
611 psz_clean2 = strdup( psz_clean );
617 /****************************************************************************
618 * Parse url list, psz_urls must be non empty (TODO: check it !)
619 ***************************************************************************/
620 static int ParseUrls( filter_t *p_filter, char *psz_urls )
622 filter_sys_t *p_sys = p_filter->p_sys;
623 char *psz_urls2 = psz_urls;
627 /* Count the number of feeds */
630 if( *psz_urls == '|' )
635 /* Allocate the structure */
636 p_sys->p_feeds = malloc( p_sys->i_feeds * sizeof( rss_feed_t ) );
637 if( !p_sys->p_feeds )
640 /* Loop on all urls and fill in the struct */
641 psz_urls = psz_urls2;
642 for( int i = 0; i < p_sys->i_feeds; i++ )
644 rss_feed_t* p_feed = p_sys->p_feeds + i;
647 if( i < p_sys->i_feeds - 1 )
649 psz_end = strchr( psz_urls, '|' );
656 p_feed->p_items = NULL;
657 p_feed->psz_title = NULL;
658 p_feed->psz_link = NULL;
659 p_feed->psz_description = NULL;
660 p_feed->psz_image = NULL;
661 p_feed->p_pic = NULL;
662 p_feed->psz_url = strdup( psz_urls );
664 psz_urls = psz_end + 1;
672 /****************************************************************************
674 ***************************************************************************/
675 static bool ParseFeed( filter_t *p_filter, xml_reader_t *p_xml_reader,
678 VLC_UNUSED(p_filter);
679 char *psz_eltname = NULL;
681 bool b_is_item = false;
682 bool b_is_image = false;
686 while( xml_ReaderRead( p_xml_reader ) == 1 )
688 switch( xml_ReaderNodeType( p_xml_reader ) )
694 case XML_READER_STARTELEM:
696 psz_eltname = xml_ReaderName( p_xml_reader );
701 msg_Dbg( p_filter, "element name: %s", psz_eltname );
704 if( !strcmp( psz_eltname, "item" ) || !strcmp( psz_eltname, "entry" ) )
708 p_feed->p_items = xrealloc( p_feed->p_items,
709 p_feed->i_items * sizeof( rss_item_t ) );
710 p_feed->p_items[p_feed->i_items-1].psz_title = NULL;
711 p_feed->p_items[p_feed->i_items-1].psz_description = NULL;
712 p_feed->p_items[p_feed->i_items-1].psz_link = NULL;
715 else if( !strcmp( psz_eltname, "image" ) )
720 else if( !strcmp( psz_eltname, "link" ) )
722 char *psz_href = NULL;
723 char *psz_rel = NULL;
724 while( xml_ReaderNextAttr( p_xml_reader ) == VLC_SUCCESS )
726 char *psz_name = xml_ReaderName( p_xml_reader );
727 char *psz_value = xml_ReaderValue( p_xml_reader );
728 if( !strcmp( psz_name, "rel" ) )
733 else if( !strcmp( psz_name, "href" ) )
736 psz_href = psz_value;
745 /* "rel" and "href" must be defined */
746 if( psz_rel && psz_href )
748 if( !strcmp( psz_rel, "alternate" ) && !b_is_item &&
749 !b_is_image && !p_feed->psz_link )
751 p_feed->psz_link = psz_href;
753 /* this isn't in the rfc but i found some ... */
754 else if( ( !strcmp( psz_rel, "logo" ) ||
755 !strcmp( psz_rel, "icon" ) )
756 && !b_is_item && !b_is_image
757 && !p_feed->psz_image )
759 p_feed->psz_image = psz_href;
774 case XML_READER_ENDELEM:
776 psz_eltname = xml_ReaderName( p_xml_reader );
781 msg_Dbg( p_filter, "element end : %s", psz_eltname );
784 if( !strcmp( psz_eltname, "item" ) || !strcmp( psz_eltname, "entry" ) )
790 else if( !strcmp( psz_eltname, "image" ) )
794 FREENULL( psz_eltname );
797 case XML_READER_TEXT:
801 char *psz_eltvalue = xml_ReaderValue( p_xml_reader );
805 char *psz_clean = removeWhiteChars( psz_eltvalue );
806 free( psz_eltvalue );
807 psz_eltvalue = psz_clean;
810 msg_Dbg( p_filter, " text : <%s>", psz_eltvalue );
812 /* Is it an item ? */
815 rss_item_t *p_item = p_feed->p_items+i_item;
817 if( !strcmp( psz_eltname, "title" ) && !p_item->psz_title )
819 p_item->psz_title = psz_eltvalue;
821 else if( !strcmp( psz_eltname, "link" ) /* rss */
822 && !p_item->psz_link )
824 p_item->psz_link = psz_eltvalue;
827 else if( ( !strcmp( psz_eltname, "description" ) ||
828 !strcmp( psz_eltname, "summary" ) )
829 && !p_item->psz_description )
831 p_item->psz_description = psz_eltvalue;
835 free( psz_eltvalue );
838 /* Is it an image ? */
839 else if( b_is_image )
841 if( !strcmp( psz_eltname, "url" ) && !p_feed->psz_image )
842 p_feed->psz_image = psz_eltvalue;
844 free( psz_eltvalue );
849 if( !strcmp( psz_eltname, "title" ) && !p_feed->psz_title )
851 p_feed->psz_title = psz_eltvalue;
854 else if( !strcmp( psz_eltname, "link" ) && !p_feed->psz_link )
856 p_feed->psz_link = psz_eltvalue;
859 else if( ( !strcmp( psz_eltname, "description" ) ||
860 !strcmp( psz_eltname, "subtitle" ) )
861 && !p_feed->psz_description )
863 p_feed->psz_description = psz_eltvalue;
866 else if( ( !strcmp( psz_eltname, "logo" ) ||
867 !strcmp( psz_eltname, "icon" ) )
868 && !p_feed->psz_image )
870 p_feed->psz_image = psz_eltvalue;
874 free( psz_eltvalue );
891 /****************************************************************************
892 * FetchRSS (or Atom) feeds
893 ***************************************************************************/
894 static rss_feed_t* FetchRSS( filter_t *p_filter )
896 filter_sys_t *p_sys = p_filter->p_sys;
900 xml_reader_t *p_xml_reader;
903 /* These data are not modified after the creation of the module so we don't
904 need to hold the lock */
905 int i_feeds = p_sys->i_feeds;
906 bool b_images = p_sys->b_images;
908 /* Allocate a new structure */
909 rss_feed_t *p_feeds = malloc( i_feeds * sizeof( rss_feed_t ) );
913 p_xml = xml_Create( p_filter );
916 msg_Err( p_filter, "Failed to open XML parser" );
921 /* Fetch all feeds and parse them */
922 for( i_feed = 0; i_feed < i_feeds; i_feed++ )
924 rss_feed_t *p_feed = p_feeds + i_feed;
925 rss_feed_t *p_old_feed = p_sys->p_feeds + i_feed;
927 /* Initialize the structure */
928 p_feed->psz_title = NULL;
929 p_feed->psz_description = NULL;
930 p_feed->psz_link = NULL;
931 p_feed->psz_image = NULL;
932 p_feed->p_pic = NULL;
934 p_feed->p_items = NULL;
936 p_feed->psz_url = strdup( p_old_feed->psz_url );
939 msg_Dbg( p_filter, "opening %s RSS/Atom feed ...", p_feed->psz_url );
941 p_stream = stream_UrlNew( p_filter, p_feed->psz_url );
944 msg_Err( p_filter, "Failed to open %s for reading", p_feed->psz_url );
949 p_xml_reader = xml_ReaderCreate( p_xml, p_stream );
952 msg_Err( p_filter, "Failed to open %s for parsing", p_feed->psz_url );
957 if( !ParseFeed( p_filter, p_xml_reader, p_feed ) )
960 /* If we have a image: load it if requiere */
961 if( b_images && p_feed->psz_image && !p_feed->p_pic )
963 p_feed->p_pic = LoadImage( p_filter, p_feed->psz_image );
966 msg_Dbg( p_filter, "done with %s RSS/Atom feed", p_feed->psz_url );
967 xml_ReaderDelete( p_xml, p_xml_reader );
968 stream_Delete( p_stream );
975 FreeRSS( p_feeds, i_feed + 1 );
977 xml_ReaderDelete( p_xml, p_xml_reader );
979 stream_Delete( p_stream );
986 /****************************************************************************
988 ***************************************************************************/
989 static void FreeRSS( rss_feed_t *p_feeds, int i_feeds )
991 for( int i_feed = 0; i_feed < i_feeds; i_feed++ )
993 rss_feed_t *p_feed = p_feeds+i_feed;
994 for( int i_item = 0; i_item < p_feed->i_items; i_item++ )
996 rss_item_t *p_item = p_feed->p_items+i_item;
997 free( p_item->psz_title );
998 free( p_item->psz_link );
999 free( p_item->psz_description );
1001 free( p_feed->p_items );
1002 free( p_feed->psz_title);
1003 free( p_feed->psz_link );
1004 free( p_feed->psz_description );
1005 free( p_feed->psz_image );
1006 if( p_feed->p_pic != NULL )
1007 picture_Release( p_feed->p_pic );
1008 free( p_feed->psz_url );
1013 static void Fetch( void *p_data )
1015 filter_t *p_filter = p_data;
1016 filter_sys_t *p_sys = p_filter->p_sys;
1018 msg_Dbg( p_filter, "Updating the rss feeds" );
1019 rss_feed_t *p_feeds = FetchRSS( p_filter );
1022 msg_Err( p_filter, "Unable to fetch the feeds" );
1026 rss_feed_t *p_old_feeds = p_sys->p_feeds;
1028 vlc_mutex_lock( &p_sys->lock );
1029 /* Update the feeds */
1030 p_sys->p_feeds = p_feeds;
1031 p_sys->b_fetched = true;
1032 /* Set all current info to the original values */
1033 p_sys->i_cur_feed = 0;
1034 p_sys->i_cur_item = p_sys->i_title == scroll_title ? -1 : 0;
1035 p_sys->i_cur_char = 0;
1036 vlc_mutex_unlock( &p_sys->lock );
1039 FreeRSS( p_old_feeds, p_sys->i_feeds );