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>
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 /*****************************************************************************
25 * Atom : http://www.ietf.org/rfc/rfc4287.txt
26 * RSS : http://www.rssboard.org/rss-specification
27 *****************************************************************************/
29 /*****************************************************************************
31 *****************************************************************************/
37 #include <vlc_common.h>
38 #include <vlc_plugin.h>
40 #include <vlc_filter.h>
41 #include <vlc_block.h>
44 #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 int FetchRSS( filter_t * );
61 static void FreeRSS( filter_t * );
63 static const int pi_color_values[] = {
64 0xf0000000, 0x00000000, 0x00808080, 0x00C0C0C0,
65 0x00FFFFFF, 0x00800000, 0x00FF0000, 0x00FF00FF, 0x00FFFF00,
66 0x00808000, 0x00008000, 0x00008080, 0x0000FF00, 0x00800080,
67 0x00000080, 0x000000FF, 0x0000FFFF};
68 static const char *const ppsz_color_descriptions[] = {
69 N_("Default"), N_("Black"),
70 N_("Gray"), N_("Silver"), N_("White"), N_("Maroon"), N_("Red"),
71 N_("Fuchsia"), N_("Yellow"), N_("Olive"), N_("Green"),
72 N_("Teal"), N_("Lime"), N_("Purple"), N_("Navy"), N_("Blue"),
75 /*****************************************************************************
76 * filter_sys_t: rss filter descriptor
77 *****************************************************************************/
82 char *psz_description;
89 char *psz_description;
95 struct rss_item_t *p_items;
103 int i_xoff, i_yoff; /* offsets for the display string in the video window */
104 int i_pos; /* permit relative positioning (top, bottom, left, right, center) */
108 char *psz_marquee; /* marquee string */
110 text_style_t *p_style; /* font control */
116 struct rss_feed_t *p_feeds;
119 time_t t_last_update;
128 #define MSG_TEXT N_("Feed URLs")
129 #define MSG_LONGTEXT N_("RSS/Atom feed '|' (pipe) seperated URLs.")
130 #define SPEED_TEXT N_("Speed of feeds")
131 #define SPEED_LONGTEXT N_("Speed of the RSS/Atom feeds in microseconds (bigger is slower).")
132 #define LENGTH_TEXT N_("Max length")
133 #define LENGTH_LONGTEXT N_("Maximum number of characters displayed on the " \
135 #define TTL_TEXT N_("Refresh time")
136 #define TTL_LONGTEXT N_("Number of seconds between each forced refresh " \
137 "of the feeds. 0 means that the feeds are never updated." )
138 #define IMAGE_TEXT N_("Feed images")
139 #define IMAGE_LONGTEXT N_("Display feed images if available.")
141 #define POSX_TEXT N_("X offset")
142 #define POSX_LONGTEXT N_("X offset, from the left screen edge." )
143 #define POSY_TEXT N_("Y offset")
144 #define POSY_LONGTEXT N_("Y offset, down from the top." )
145 #define OPACITY_TEXT N_("Opacity")
146 #define OPACITY_LONGTEXT N_("Opacity (inverse of transparency) of " \
147 "overlay text. 0 = transparent, 255 = totally opaque." )
149 #define SIZE_TEXT N_("Font size, pixels")
150 #define SIZE_LONGTEXT N_("Font size, in pixels. Default is -1 (use default " \
153 #define COLOR_TEXT N_("Color")
154 #define COLOR_LONGTEXT N_("Color of the text that will be rendered on "\
155 "the video. This must be an hexadecimal (like HTML colors). The first two "\
156 "chars are for red, then green, then blue. #000000 = black, #FF0000 = red,"\
157 " #00FF00 = green, #FFFF00 = yellow (red + green), #FFFFFF = white" )
159 #define POS_TEXT N_("Text position")
160 #define POS_LONGTEXT N_( \
161 "You can enforce the text position on the video " \
162 "(0=center, 1=left, 2=right, 4=top, 8=bottom; you can " \
163 "also use combinations of these values, eg 6 = top-right).")
165 #define TITLE_TEXT N_("Title display mode")
166 #define TITLE_LONGTEXT N_("Title display mode. Default is 0 (hidden) if the feed has an image and feed images are enabled, 1 otherwise.")
168 static const int pi_pos_values[] = { 0, 1, 2, 4, 8, 5, 6, 9, 10 };
169 static const char *const ppsz_pos_descriptions[] =
170 { N_("Center"), N_("Left"), N_("Right"), N_("Top"), N_("Bottom"),
171 N_("Top-Left"), N_("Top-Right"), N_("Bottom-Left"), N_("Bottom-Right") };
179 static const int pi_title_modes[] = { default_title, hide_title, prepend_title, scroll_title };
180 static const char *const ppsz_title_modes[] =
181 { N_("Default"), N_("Don't show"), N_("Always visible"), N_("Scroll with feed") };
183 #define CFG_PREFIX "rss-"
185 /*****************************************************************************
187 *****************************************************************************/
189 set_capability( "sub filter", 1 )
190 set_shortname( "RSS / Atom" )
191 set_callbacks( CreateFilter, DestroyFilter )
192 set_category( CAT_VIDEO )
193 set_subcategory( SUBCAT_VIDEO_SUBPIC )
194 add_string( CFG_PREFIX "urls", "rss", NULL, MSG_TEXT, MSG_LONGTEXT, false )
196 set_section( N_("Position"), NULL )
197 add_integer( CFG_PREFIX "x", 0, NULL, POSX_TEXT, POSX_LONGTEXT, true )
198 add_integer( CFG_PREFIX "y", 0, NULL, POSY_TEXT, POSY_LONGTEXT, true )
199 add_integer( CFG_PREFIX "position", -1, NULL, POS_TEXT, POS_LONGTEXT, false )
200 change_integer_list( pi_pos_values, ppsz_pos_descriptions, NULL )
202 set_section( N_("Font"), NULL )
203 /* 5 sets the default to top [1] left [4] */
204 add_integer_with_range( CFG_PREFIX "opacity", 255, 0, 255, NULL,
205 OPACITY_TEXT, OPACITY_LONGTEXT, false )
206 add_integer( CFG_PREFIX "color", 0xFFFFFF, NULL, COLOR_TEXT, COLOR_LONGTEXT,
208 change_integer_list( pi_color_values, ppsz_color_descriptions, NULL )
209 add_integer( CFG_PREFIX "size", -1, NULL, SIZE_TEXT, SIZE_LONGTEXT, false )
211 set_section( N_("Misc"), NULL )
212 add_integer( CFG_PREFIX "speed", 100000, NULL, SPEED_TEXT, SPEED_LONGTEXT,
214 add_integer( CFG_PREFIX "length", 60, NULL, LENGTH_TEXT, LENGTH_LONGTEXT,
216 add_integer( CFG_PREFIX "ttl", 1800, NULL, TTL_TEXT, TTL_LONGTEXT, false )
217 add_bool( CFG_PREFIX "images", 1, NULL, IMAGE_TEXT, IMAGE_LONGTEXT, false )
218 add_integer( CFG_PREFIX "title", default_title, NULL, TITLE_TEXT, TITLE_LONGTEXT, false )
219 change_integer_list( pi_title_modes, ppsz_title_modes, NULL )
221 set_description( N_("RSS and Atom feed display") )
222 add_shortcut( "rss" )
223 add_shortcut( "atom" )
226 static const char *const ppsz_filter_options[] = {
227 "urls", "x", "y", "position", "color", "size", "speed", "length",
228 "ttl", "images", "title", NULL
231 /*****************************************************************************
232 * CreateFilter: allocates RSS video filter
233 *****************************************************************************/
234 static int CreateFilter( vlc_object_t *p_this )
236 filter_t *p_filter = (filter_t *)p_this;
240 /* Allocate structure */
241 p_sys = p_filter->p_sys = malloc( sizeof( filter_sys_t ) );
245 vlc_mutex_init( &p_sys->lock );
246 vlc_mutex_lock( &p_sys->lock );
248 config_ChainParse( p_filter, CFG_PREFIX, ppsz_filter_options,
251 p_sys->psz_urls = var_CreateGetString( p_filter, CFG_PREFIX "urls" );
252 p_sys->i_title = var_CreateGetInteger( p_filter, CFG_PREFIX "title" );
253 p_sys->i_cur_feed = 0;
254 p_sys->i_cur_item = p_sys->i_title == scroll_title ? -1 : 0;
255 p_sys->i_cur_char = 0;
257 p_sys->p_feeds = NULL;
258 p_sys->i_speed = var_CreateGetInteger( p_filter, CFG_PREFIX "speed" );
259 p_sys->i_length = var_CreateGetInteger( p_filter, CFG_PREFIX "length" );
260 p_sys->i_ttl = __MAX( 0, var_CreateGetInteger( p_filter, CFG_PREFIX "ttl" ) );
261 p_sys->b_images = var_CreateGetBool( p_filter, CFG_PREFIX "images" );
263 p_sys->psz_marquee = (char *)malloc( p_sys->i_length + 1 );
264 if( p_sys->psz_marquee == NULL )
266 vlc_mutex_unlock( &p_sys->lock );
267 vlc_mutex_destroy( &p_sys->lock );
268 free( p_sys->psz_urls );
272 p_sys->psz_marquee[p_sys->i_length] = '\0';
274 p_sys->p_style = text_style_New();
275 if( p_sys->p_style == NULL )
277 free( p_sys->psz_marquee );
278 vlc_mutex_unlock( &p_sys->lock );
279 vlc_mutex_destroy( &p_sys->lock );
280 free( p_sys->psz_urls );
285 p_sys->i_xoff = var_CreateGetInteger( p_filter, CFG_PREFIX "x" );
286 p_sys->i_yoff = var_CreateGetInteger( p_filter, CFG_PREFIX "y" );
287 p_sys->i_pos = var_CreateGetInteger( p_filter, CFG_PREFIX "position" );
288 p_sys->p_style->i_font_alpha = 255 - var_CreateGetInteger( p_filter, CFG_PREFIX "opacity" );
289 p_sys->p_style->i_font_color = var_CreateGetInteger( p_filter, CFG_PREFIX "color" );
290 p_sys->p_style->i_font_size = var_CreateGetInteger( p_filter, CFG_PREFIX "size" );
292 if( p_sys->b_images == true && p_sys->p_style->i_font_size == -1 )
294 msg_Warn( p_filter, "rss-size wasn't specified. Feed images will thus be displayed without being resized" );
297 if( FetchRSS( p_filter ) )
299 msg_Err( p_filter, "failed while fetching RSS ... too bad" );
300 text_style_Delete( p_sys->p_style );
301 free( p_sys->psz_marquee );
302 vlc_mutex_unlock( &p_sys->lock );
303 vlc_mutex_destroy( &p_sys->lock );
304 free( p_sys->psz_urls );
308 p_sys->t_last_update = time( NULL );
310 if( p_sys->i_feeds == 0 )
312 text_style_Delete( p_sys->p_style );
313 free( p_sys->psz_marquee );
314 vlc_mutex_unlock( &p_sys->lock );
315 vlc_mutex_destroy( &p_sys->lock );
316 free( p_sys->psz_urls );
320 for( i_feed=0; i_feed < p_sys->i_feeds; i_feed ++ )
322 if( p_sys->p_feeds[i_feed].i_items == 0 )
324 text_style_Delete( p_sys->p_style );
325 free( p_sys->psz_marquee );
327 vlc_mutex_unlock( &p_sys->lock );
328 vlc_mutex_destroy( &p_sys->lock );
329 free( p_sys->psz_urls );
335 p_filter->pf_sub_filter = Filter;
336 p_sys->last_date = (mtime_t)0;
338 vlc_mutex_unlock( &p_sys->lock );
342 /*****************************************************************************
343 * DestroyFilter: destroy RSS video filter
344 *****************************************************************************/
345 static void DestroyFilter( vlc_object_t *p_this )
347 filter_t *p_filter = (filter_t *)p_this;
348 filter_sys_t *p_sys = p_filter->p_sys;
350 vlc_mutex_lock( &p_sys->lock );
352 text_style_Delete( p_sys->p_style );
353 free( p_sys->psz_marquee );
354 free( p_sys->psz_urls );
356 vlc_mutex_unlock( &p_sys->lock );
357 vlc_mutex_destroy( &p_sys->lock );
360 /* Delete the RSS variables */
361 var_Destroy( p_filter, CFG_PREFIX "urls" );
362 var_Destroy( p_filter, CFG_PREFIX "speed" );
363 var_Destroy( p_filter, CFG_PREFIX "length" );
364 var_Destroy( p_filter, CFG_PREFIX "ttl" );
365 var_Destroy( p_filter, CFG_PREFIX "images" );
366 var_Destroy( p_filter, CFG_PREFIX "x" );
367 var_Destroy( p_filter, CFG_PREFIX "y" );
368 var_Destroy( p_filter, CFG_PREFIX "position" );
369 var_Destroy( p_filter, CFG_PREFIX "color");
370 var_Destroy( p_filter, CFG_PREFIX "opacity");
371 var_Destroy( p_filter, CFG_PREFIX "size");
372 var_Destroy( p_filter, CFG_PREFIX "title" );
375 /****************************************************************************
376 * Filter: the whole thing
377 ****************************************************************************
378 * This function outputs subpictures at regular time intervals.
379 ****************************************************************************/
380 static subpicture_t *Filter( filter_t *p_filter, mtime_t date )
382 filter_sys_t *p_sys = p_filter->p_sys;
385 subpicture_region_t *p_region;
389 struct rss_feed_t *p_feed;
391 memset( &fmt, 0, sizeof(video_format_t) );
393 vlc_mutex_lock( &p_sys->lock );
396 + ( p_sys->i_cur_char == 0 && p_sys->i_cur_item == ( p_sys->i_title == scroll_title ? -1 : 0 ) ? 5 : 1 )
397 /* ( ... ? 5 : 1 ) means "wait 5 times more for the 1st char" */
398 * p_sys->i_speed > date )
400 vlc_mutex_unlock( &p_sys->lock );
404 /* Do we need to update the feeds ? */
406 && time( NULL ) > p_sys->t_last_update + (time_t)p_sys->i_ttl )
408 msg_Dbg( p_filter, "Forcing update of all the RSS feeds" );
409 if( FetchRSS( p_filter ) )
411 msg_Err( p_filter, "Failed while fetching RSS ... too bad" );
412 vlc_mutex_unlock( &p_sys->lock );
413 return NULL; /* FIXME : we most likely messed up all the data,
414 * so we might need to do something about it */
416 p_sys->t_last_update = time( NULL );
419 p_sys->last_date = date;
421 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 )
423 p_sys->i_cur_char = 0;
425 if( p_sys->i_cur_item >= p_sys->p_feeds[p_sys->i_cur_feed].i_items )
427 if( p_sys->i_title == scroll_title )
428 p_sys->i_cur_item = -1;
430 p_sys->i_cur_item = 0;
431 p_sys->i_cur_feed = (p_sys->i_cur_feed + 1)%p_sys->i_feeds;
435 p_spu = filter_NewSubpicture( p_filter );
438 vlc_mutex_unlock( &p_sys->lock );
442 fmt.i_chroma = VLC_CODEC_TEXT;
444 p_spu->p_region = subpicture_region_New( &fmt );
445 if( !p_spu->p_region )
447 p_filter->pf_sub_buffer_del( p_filter, p_spu );
448 vlc_mutex_unlock( &p_sys->lock );
452 /* Generate the string that will be displayed. This string is supposed to
453 be p_sys->i_length characters long. */
454 i_item = p_sys->i_cur_item;
455 i_feed = p_sys->i_cur_feed;
456 p_feed = &p_sys->p_feeds[i_feed];
458 if( ( p_feed->p_pic && p_sys->i_title == default_title )
459 || p_sys->i_title == hide_title )
461 /* Don't display the feed's title if we have an image */
462 snprintf( p_sys->psz_marquee, p_sys->i_length, "%s",
463 p_sys->p_feeds[i_feed].p_items[i_item].psz_title
464 +p_sys->i_cur_char );
466 else if( ( !p_feed->p_pic && p_sys->i_title == default_title )
467 || p_sys->i_title == prepend_title )
469 snprintf( p_sys->psz_marquee, p_sys->i_length, "%s : %s",
470 p_sys->p_feeds[i_feed].psz_title,
471 p_sys->p_feeds[i_feed].p_items[i_item].psz_title
472 +p_sys->i_cur_char );
474 else /* scrolling title */
477 snprintf( p_sys->psz_marquee, p_sys->i_length, "%s : %s",
478 p_sys->p_feeds[i_feed].psz_title + p_sys->i_cur_char,
479 p_sys->p_feeds[i_feed].p_items[i_item+1].psz_title );
481 snprintf( p_sys->psz_marquee, p_sys->i_length, "%s",
482 p_sys->p_feeds[i_feed].p_items[i_item].psz_title
483 +p_sys->i_cur_char );
486 while( strlen( p_sys->psz_marquee ) < (unsigned int)p_sys->i_length )
489 if( i_item == p_sys->p_feeds[i_feed].i_items ) break;
490 snprintf( strchr( p_sys->psz_marquee, 0 ),
491 p_sys->i_length - strlen( p_sys->psz_marquee ),
493 p_sys->p_feeds[i_feed].p_items[i_item].psz_title );
496 /* Calls to snprintf might split multibyte UTF8 chars ...
497 * which freetype doesn't like. */
499 char *a = strdup( p_sys->psz_marquee );
501 char *b = p_sys->psz_marquee;
502 EnsureUTF8( p_sys->psz_marquee );
503 /* we want to use ' ' instead of '?' for erroneous chars */
506 if( *b != *a ) *b = ' ';
512 p_spu->p_region->psz_text = strdup(p_sys->psz_marquee);
513 if( p_sys->p_style->i_font_size > 0 )
514 p_spu->p_region->fmt.i_visible_height = p_sys->p_style->i_font_size;
515 p_spu->i_start = date;
517 p_spu->b_ephemer = true;
519 /* where to locate the string: */
520 if( p_sys->i_pos < 0 )
521 { /* set to an absolute xy */
522 p_spu->p_region->i_align = OSD_ALIGN_LEFT | OSD_ALIGN_TOP;
523 p_spu->b_absolute = true;
526 { /* set to one of the 9 relative locations */
527 p_spu->p_region->i_align = p_sys->i_pos;
528 p_spu->b_absolute = false;
531 p_spu->p_region->p_style = text_style_Duplicate( p_sys->p_style );
535 /* Display the feed's image */
536 picture_t *p_pic = p_feed->p_pic;
537 video_format_t fmt_out;
539 memset( &fmt_out, 0, sizeof(video_format_t) );
541 fmt_out.i_chroma = VLC_CODEC_YUVA;
542 fmt_out.i_aspect = VOUT_ASPECT_FACTOR;
543 fmt_out.i_sar_num = fmt_out.i_sar_den = 1;
545 fmt_out.i_visible_width = p_pic->p[Y_PLANE].i_visible_pitch;
547 fmt_out.i_visible_height = p_pic->p[Y_PLANE].i_visible_lines;
549 p_region = subpicture_region_New( &fmt_out );
552 msg_Err( p_filter, "cannot allocate SPU region" );
556 p_region->i_x = p_sys->i_xoff;
557 p_region->i_y = p_sys->i_yoff;
558 /* FIXME the copy is probably not needed anymore */
559 picture_Copy( p_region->p_picture, p_pic );
560 p_spu->p_region->p_next = p_region;
563 /* Offset text to display right next to the image */
564 p_spu->p_region->i_x = p_pic->p[Y_PLANE].i_visible_pitch;
567 vlc_mutex_unlock( &p_sys->lock );
571 /****************************************************************************
572 * RSS related functions
573 ****************************************************************************
574 * You should always lock the p_filter mutex before using any of these
576 ***************************************************************************/
578 #undef LoadImage /* do not conflict with Win32 API */
580 /****************************************************************************
581 * download and resize image located at psz_url
582 ***************************************************************************/
583 static picture_t *LoadImage( filter_t *p_filter, const char *psz_url )
585 filter_sys_t *p_sys = p_filter->p_sys;
586 video_format_t fmt_in;
587 video_format_t fmt_out;
589 picture_t *p_pic = NULL;
590 image_handler_t *p_handler = image_HandlerCreate( p_filter );
592 memset( &fmt_in, 0, sizeof(video_format_t) );
593 memset( &fmt_out, 0, sizeof(video_format_t) );
595 fmt_out.i_chroma = VLC_CODEC_YUVA;
596 p_orig = image_ReadUrl( p_handler, psz_url, &fmt_in, &fmt_out );
600 msg_Warn( p_filter, "Unable to read image %s", psz_url );
602 else if( p_sys->p_style->i_font_size > 0 )
605 fmt_in.i_chroma = VLC_CODEC_YUVA;
606 fmt_in.i_height = p_orig->p[Y_PLANE].i_visible_lines;
607 fmt_in.i_width = p_orig->p[Y_PLANE].i_visible_pitch;
608 fmt_out.i_width = p_orig->p[Y_PLANE].i_visible_pitch
609 *p_sys->p_style->i_font_size/p_orig->p[Y_PLANE].i_visible_lines;
610 fmt_out.i_height = p_sys->p_style->i_font_size;
612 p_pic = image_Convert( p_handler, p_orig, &fmt_in, &fmt_out );
613 picture_Release( p_orig );
616 msg_Warn( p_filter, "Error while converting %s", psz_url );
624 image_HandlerDelete( p_handler );
629 /****************************************************************************
630 * remove all ' ' '\t' '\n' '\r' characters from the begining and end of the
632 ***************************************************************************/
633 static char *removeWhiteChars( char *psz_src )
635 char *psz_src2 = strdup( psz_src );
636 char *psz_clean = strdup( psz_src2 );
639 while( ( *psz_clean == ' ' || *psz_clean == '\t'
640 || *psz_clean == '\n' || *psz_clean == '\r' )
641 && *psz_clean != '\0' )
645 i = strlen( psz_clean );
647 ( psz_clean[i] == ' ' || psz_clean[i] == '\t'
648 || psz_clean[i] == '\n' || psz_clean[i] == '\r' ) );
649 psz_clean[i+1] = '\0';
650 psz_clean2 = strdup( psz_clean );
655 /****************************************************************************
656 * FetchRSS (or Atom) feeds
657 ***************************************************************************/
658 static int FetchRSS( filter_t *p_filter)
660 filter_sys_t *p_sys = p_filter->p_sys;
662 stream_t *p_stream = NULL;
664 xml_reader_t *p_xml_reader = NULL;
666 char *psz_eltname = NULL;
667 char *psz_eltvalue = NULL;
668 char *psz_feed = NULL;
669 char *psz_buffer = NULL;
670 char *psz_buffer_2 = NULL;
681 while( p_sys->psz_urls[i_int] != 0 )
682 if( p_sys->psz_urls[i_int++] == '|' )
684 p_sys->p_feeds = (struct rss_feed_t *)malloc( p_sys->i_feeds
685 * sizeof( struct rss_feed_t ) );
687 p_xml = xml_Create( p_filter );
690 msg_Err( p_filter, "Failed to open XML parser" );
694 psz_buffer = strdup( p_sys->psz_urls );
695 psz_buffer_2 = psz_buffer; /* keep track so we can free it */
696 for( i_feed = 0; i_feed < p_sys->i_feeds; i_feed++ )
698 struct rss_feed_t *p_feed = p_sys->p_feeds+i_feed;
700 if( psz_buffer == NULL ) break;
701 if( psz_buffer[0] == 0 ) psz_buffer++;
702 psz_feed = psz_buffer;
703 psz_buffer = strchr( psz_buffer, '|' );
704 if( psz_buffer != NULL ) psz_buffer[0] = 0;
706 p_feed->psz_title = NULL;
707 p_feed->psz_description = NULL;
708 p_feed->psz_link = NULL;
709 p_feed->psz_image = NULL;
710 p_feed->p_pic = NULL;
712 p_feed->p_items = NULL;
714 msg_Dbg( p_filter, "opening %s RSS/Atom feed ...", psz_feed );
716 p_stream = stream_UrlNew( p_filter, psz_feed );
719 msg_Err( p_filter, "Failed to open %s for reading", psz_feed );
724 p_xml_reader = xml_ReaderCreate( p_xml, p_stream );
727 msg_Err( p_filter, "Failed to open %s for parsing", psz_feed );
736 while( xml_ReaderRead( p_xml_reader ) == 1 )
738 switch( xml_ReaderNodeType( p_xml_reader ) )
744 case XML_READER_STARTELEM:
746 psz_eltname = xml_ReaderName( p_xml_reader );
752 msg_Dbg( p_filter, "element name: %s", psz_eltname );
754 if( !strcmp( psz_eltname, "item" ) /* rss */
755 || !strcmp( psz_eltname, "entry" ) ) /* atom */
759 p_feed->p_items = (struct rss_item_t *)realloc( p_feed->p_items, p_feed->i_items * sizeof( struct rss_item_t ) );
760 p_feed->p_items[p_feed->i_items-1].psz_title = NULL;
761 p_feed->p_items[p_feed->i_items-1].psz_description
763 p_feed->p_items[p_feed->i_items-1].psz_link = NULL;
765 else if( !strcmp( psz_eltname, "image" ) ) /* rss */
769 else if( !strcmp( psz_eltname, "link" ) ) /* atom */
771 char *psz_href = NULL;
772 char *psz_rel = NULL;
773 while( xml_ReaderNextAttr( p_xml_reader )
776 char *psz_name = xml_ReaderName( p_xml_reader );
777 char *psz_value = xml_ReaderValue( p_xml_reader );
778 if( !strcmp( psz_name, "rel" ) )
782 msg_Dbg( p_filter, "\"rel\" attribute of link atom duplicated (last value: %s)", psz_value );
787 else if( !strcmp( psz_name, "href" ) )
791 msg_Dbg( p_filter, "\"href\" attribute of link atom duplicated (last value: %s)", psz_href );
794 psz_href = psz_value;
802 if( psz_rel && psz_href )
804 if( !strcmp( psz_rel, "alternate" )
805 && b_is_item == false
806 && b_is_image == false
807 && !p_feed->psz_link )
809 p_feed->psz_link = psz_href;
811 /* this isn't in the rfc but i found some ... */
812 else if( ( !strcmp( psz_rel, "logo" )
813 || !strcmp( psz_rel, "icon" ) )
814 && b_is_item == false
815 && b_is_image == false
816 && !p_feed->psz_image )
818 p_feed->psz_image = psz_href;
833 case XML_READER_ENDELEM:
836 psz_eltname = xml_ReaderName( p_xml_reader );
842 msg_Dbg( p_filter, "element end : %s", psz_eltname );
844 if( !strcmp( psz_eltname, "item" ) /* rss */
845 || !strcmp( psz_eltname, "entry" ) ) /* atom */
850 else if( !strcmp( psz_eltname, "image" ) ) /* rss */
858 case XML_READER_TEXT:
859 if( !psz_eltname ) break;
860 psz_eltvalue = xml_ReaderValue( p_xml_reader );
868 psz_clean = removeWhiteChars( psz_eltvalue );
869 free( psz_eltvalue ); psz_eltvalue = psz_clean;
872 msg_Dbg( p_filter, " text : <%s>", psz_eltvalue );
874 if( b_is_item == true )
876 struct rss_item_t *p_item;
877 p_item = p_feed->p_items+i_item;
878 if( !strcmp( psz_eltname, "title" ) /* rss/atom */
879 && !p_item->psz_title )
881 p_item->psz_title = psz_eltvalue;
883 else if( !strcmp( psz_eltname, "link" ) /* rss */
884 && !p_item->psz_link )
886 p_item->psz_link = psz_eltvalue;
888 else if((!strcmp( psz_eltname, "description" ) /* rss */
889 || !strcmp( psz_eltname, "summary" ) ) /* atom */
890 && !p_item->psz_description )
892 p_item->psz_description = psz_eltvalue;
896 free( psz_eltvalue );
900 else if( b_is_image == true )
902 if( !strcmp( psz_eltname, "url" ) /* rss */
903 && !p_feed->psz_image )
905 p_feed->psz_image = psz_eltvalue;
909 free( psz_eltvalue );
915 if( !strcmp( psz_eltname, "title" ) /* rss/atom */
916 && !p_feed->psz_title )
918 p_feed->psz_title = psz_eltvalue;
920 else if( !strcmp( psz_eltname, "link" ) /* rss */
921 && !p_feed->psz_link )
923 p_feed->psz_link = psz_eltvalue;
925 else if((!strcmp( psz_eltname, "description" ) /* rss */
926 || !strcmp( psz_eltname, "subtitle" ) ) /* atom */
927 && !p_feed->psz_description )
929 p_feed->psz_description = psz_eltvalue;
931 else if( ( !strcmp( psz_eltname, "logo" ) /* atom */
932 || !strcmp( psz_eltname, "icon" ) ) /* atom */
933 && !p_feed->psz_image )
935 p_feed->psz_image = psz_eltvalue;
939 free( psz_eltvalue );
947 if( p_sys->b_images == true
948 && p_feed->psz_image && !p_feed->p_pic )
950 p_feed->p_pic = LoadImage( p_filter, p_feed->psz_image );
953 if( p_xml_reader && p_xml ) xml_ReaderDelete( p_xml, p_xml_reader );
954 if( p_stream ) stream_Delete( p_stream );
955 msg_Dbg( p_filter, "done with %s RSS/Atom feed", psz_feed );
957 free( psz_buffer_2 );
958 if( p_xml ) xml_Delete( p_xml );
963 /****************************************************************************
965 ***************************************************************************/
966 static void FreeRSS( filter_t *p_filter)
968 filter_sys_t *p_sys = p_filter->p_sys;
970 struct rss_item_t *p_item;
971 struct rss_feed_t *p_feed;
976 for( i_feed = 0; i_feed < p_sys->i_feeds; i_feed++ )
978 p_feed = p_sys->p_feeds+i_feed;
979 for( i_item = 0; i_item < p_feed->i_items; i_item++ )
981 p_item = p_feed->p_items+i_item;
982 free( p_item->psz_title );
983 free( p_item->psz_link );
984 free( p_item->psz_description );
986 free( p_feed->p_items );
987 free( p_feed->psz_title);
988 free( p_feed->psz_link );
989 free( p_feed->psz_description );
990 free( p_feed->psz_image );
991 if( p_feed->p_pic != NULL )
992 picture_Release( p_feed->p_pic );
994 free( p_sys->p_feeds );