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>
41 #include "vlc_filter.h"
42 #include "vlc_block.h"
45 #include "vlc_block.h"
46 #include "vlc_stream.h"
48 #include <vlc_charset.h>
50 #include "vlc_image.h"
54 /*****************************************************************************
56 *****************************************************************************/
57 static int CreateFilter ( vlc_object_t * );
58 static void DestroyFilter( vlc_object_t * );
59 static subpicture_t *Filter( filter_t *, mtime_t );
61 static int FetchRSS( filter_t * );
62 static void FreeRSS( filter_t * );
64 static const int pi_color_values[] = {
65 0xf0000000, 0x00000000, 0x00808080, 0x00C0C0C0,
66 0x00FFFFFF, 0x00800000, 0x00FF0000, 0x00FF00FF, 0x00FFFF00,
67 0x00808000, 0x00008000, 0x00008080, 0x0000FF00, 0x00800080,
68 0x00000080, 0x000000FF, 0x0000FFFF};
69 static const char *const ppsz_color_descriptions[] = {
70 N_("Default"), N_("Black"),
71 N_("Gray"), N_("Silver"), N_("White"), N_("Maroon"), N_("Red"),
72 N_("Fuchsia"), N_("Yellow"), N_("Olive"), N_("Green"),
73 N_("Teal"), N_("Lime"), N_("Purple"), N_("Navy"), N_("Blue"),
76 /*****************************************************************************
77 * filter_sys_t: rss filter descriptor
78 *****************************************************************************/
83 char *psz_description;
90 char *psz_description;
96 struct rss_item_t *p_items;
104 int i_xoff, i_yoff; /* offsets for the display string in the video window */
105 int i_pos; /* permit relative positioning (top, bottom, left, right, center) */
109 char *psz_marquee; /* marquee string */
111 text_style_t *p_style; /* font control */
117 struct rss_feed_t *p_feeds;
120 time_t t_last_update;
129 #define MSG_TEXT N_("Feed URLs")
130 #define MSG_LONGTEXT N_("RSS/Atom feed '|' (pipe) seperated URLs.")
131 #define SPEED_TEXT N_("Speed of feeds")
132 #define SPEED_LONGTEXT N_("Speed of the RSS/Atom feeds in microseconds (bigger is slower).")
133 #define LENGTH_TEXT N_("Max length")
134 #define LENGTH_LONGTEXT N_("Maximum number of characters displayed on the " \
136 #define TTL_TEXT N_("Refresh time")
137 #define TTL_LONGTEXT N_("Number of seconds between each forced refresh " \
138 "of the feeds. 0 means that the feeds are never updated." )
139 #define IMAGE_TEXT N_("Feed images")
140 #define IMAGE_LONGTEXT N_("Display feed images if available.")
142 #define POSX_TEXT N_("X offset")
143 #define POSX_LONGTEXT N_("X offset, from the left screen edge." )
144 #define POSY_TEXT N_("Y offset")
145 #define POSY_LONGTEXT N_("Y offset, down from the top." )
146 #define OPACITY_TEXT N_("Opacity")
147 #define OPACITY_LONGTEXT N_("Opacity (inverse of transparency) of " \
148 "overlay text. 0 = transparent, 255 = totally opaque." )
150 #define SIZE_TEXT N_("Font size, pixels")
151 #define SIZE_LONGTEXT N_("Font size, in pixels. Default is -1 (use default " \
154 #define COLOR_TEXT N_("Color")
155 #define COLOR_LONGTEXT N_("Color of the text that will be rendered on "\
156 "the video. This must be an hexadecimal (like HTML colors). The first two "\
157 "chars are for red, then green, then blue. #000000 = black, #FF0000 = red,"\
158 " #00FF00 = green, #FFFF00 = yellow (red + green), #FFFFFF = white" )
160 #define POS_TEXT N_("Text position")
161 #define POS_LONGTEXT N_( \
162 "You can enforce the text position on the video " \
163 "(0=center, 1=left, 2=right, 4=top, 8=bottom; you can " \
164 "also use combinations of these values, eg 6 = top-right).")
166 #define TITLE_TEXT N_("Title display mode")
167 #define TITLE_LONGTEXT N_("Title display mode. Default is 0 (hidden) if the feed has an image and feed images are enabled, 1 otherwise.")
169 static const int pi_pos_values[] = { 0, 1, 2, 4, 8, 5, 6, 9, 10 };
170 static const char *const ppsz_pos_descriptions[] =
171 { N_("Center"), N_("Left"), N_("Right"), N_("Top"), N_("Bottom"),
172 N_("Top-Left"), N_("Top-Right"), N_("Bottom-Left"), N_("Bottom-Right") };
180 static const int pi_title_modes[] = { default_title, hide_title, prepend_title, scroll_title };
181 static const char *const ppsz_title_modes[] =
182 { N_("Default"), N_("Don't show"), N_("Always visible"), N_("Scroll with feed") };
184 #define CFG_PREFIX "rss-"
186 /*****************************************************************************
188 *****************************************************************************/
190 set_capability( "sub filter", 1 );
191 set_shortname( "RSS / Atom" );
192 set_callbacks( CreateFilter, DestroyFilter );
193 set_category( CAT_VIDEO );
194 set_subcategory( SUBCAT_VIDEO_SUBPIC );
195 add_string( CFG_PREFIX "urls", "rss", NULL, MSG_TEXT, MSG_LONGTEXT, false );
197 set_section( N_("Position"), NULL );
198 add_integer( CFG_PREFIX "x", 0, NULL, POSX_TEXT, POSX_LONGTEXT, true );
199 add_integer( CFG_PREFIX "y", 0, NULL, POSY_TEXT, POSY_LONGTEXT, true );
200 add_integer( CFG_PREFIX "position", -1, NULL, POS_TEXT, POS_LONGTEXT, false );
201 change_integer_list( pi_pos_values, ppsz_pos_descriptions, 0 );
203 set_section( N_("Font"), NULL );
204 /* 5 sets the default to top [1] left [4] */
205 add_integer_with_range( CFG_PREFIX "opacity", 255, 0, 255, NULL,
206 OPACITY_TEXT, OPACITY_LONGTEXT, false );
207 add_integer( CFG_PREFIX "color", 0xFFFFFF, NULL, COLOR_TEXT, COLOR_LONGTEXT,
209 change_integer_list( pi_color_values, ppsz_color_descriptions, 0 );
210 add_integer( CFG_PREFIX "size", -1, NULL, SIZE_TEXT, SIZE_LONGTEXT, false );
212 set_section( N_("Misc"), NULL );
213 add_integer( CFG_PREFIX "speed", 100000, NULL, SPEED_TEXT, SPEED_LONGTEXT,
215 add_integer( CFG_PREFIX "length", 60, NULL, LENGTH_TEXT, LENGTH_LONGTEXT,
217 add_integer( CFG_PREFIX "ttl", 1800, NULL, TTL_TEXT, TTL_LONGTEXT, false );
218 add_bool( CFG_PREFIX "images", 1, NULL, IMAGE_TEXT, IMAGE_LONGTEXT, false );
219 add_integer( CFG_PREFIX "title", default_title, NULL, TITLE_TEXT, TITLE_LONGTEXT, false );
220 change_integer_list( pi_title_modes, ppsz_title_modes, 0 );
222 set_description( N_("RSS and Atom feed display") );
223 add_shortcut( "rss" );
224 add_shortcut( "atom" );
227 static const char *const ppsz_filter_options[] = {
228 "urls", "x", "y", "position", "color", "size", "speed", "length",
229 "ttl", "images", "title", NULL
232 /*****************************************************************************
233 * CreateFilter: allocates RSS video filter
234 *****************************************************************************/
235 static int CreateFilter( vlc_object_t *p_this )
237 filter_t *p_filter = (filter_t *)p_this;
241 /* Allocate structure */
242 p_sys = p_filter->p_sys = malloc( sizeof( filter_sys_t ) );
246 vlc_mutex_init( &p_sys->lock );
247 vlc_mutex_lock( &p_sys->lock );
249 config_ChainParse( p_filter, CFG_PREFIX, ppsz_filter_options,
252 p_sys->psz_urls = var_CreateGetString( p_filter, CFG_PREFIX "urls" );
253 p_sys->i_title = var_CreateGetInteger( p_filter, CFG_PREFIX "title" );
254 p_sys->i_cur_feed = 0;
255 p_sys->i_cur_item = p_sys->i_title == scroll_title ? -1 : 0;
256 p_sys->i_cur_char = 0;
258 p_sys->p_feeds = NULL;
259 p_sys->i_speed = var_CreateGetInteger( p_filter, CFG_PREFIX "speed" );
260 p_sys->i_length = var_CreateGetInteger( p_filter, CFG_PREFIX "length" );
261 p_sys->i_ttl = __MAX( 0, var_CreateGetInteger( p_filter, CFG_PREFIX "ttl" ) );
262 p_sys->b_images = var_CreateGetBool( p_filter, CFG_PREFIX "images" );
264 p_sys->psz_marquee = (char *)malloc( p_sys->i_length + 1 );
265 if( p_sys->psz_marquee == NULL )
267 vlc_mutex_unlock( &p_sys->lock );
268 vlc_mutex_destroy( &p_sys->lock );
272 p_sys->psz_marquee[p_sys->i_length] = '\0';
274 p_sys->p_style = malloc( sizeof( text_style_t ));
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 );
283 memcpy( p_sys->p_style, &default_text_style, sizeof( text_style_t ));
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 free( p_sys->p_style );
301 free( p_sys->psz_marquee );
302 vlc_mutex_unlock( &p_sys->lock );
303 vlc_mutex_destroy( &p_sys->lock );
307 p_sys->t_last_update = time( NULL );
309 if( p_sys->i_feeds == 0 )
311 free( p_sys->p_style );
312 free( p_sys->psz_marquee );
313 vlc_mutex_unlock( &p_sys->lock );
314 vlc_mutex_destroy( &p_sys->lock );
318 for( i_feed=0; i_feed < p_sys->i_feeds; i_feed ++ )
320 if( p_sys->p_feeds[i_feed].i_items == 0 )
322 free( p_sys->p_style );
323 free( p_sys->psz_marquee );
325 vlc_mutex_unlock( &p_sys->lock );
326 vlc_mutex_destroy( &p_sys->lock );
332 p_filter->pf_sub_filter = Filter;
333 p_sys->last_date = (mtime_t)0;
335 vlc_mutex_unlock( &p_sys->lock );
339 /*****************************************************************************
340 * DestroyFilter: destroy RSS video filter
341 *****************************************************************************/
342 static void DestroyFilter( vlc_object_t *p_this )
344 filter_t *p_filter = (filter_t *)p_this;
345 filter_sys_t *p_sys = p_filter->p_sys;
347 vlc_mutex_lock( &p_sys->lock );
349 free( p_sys->p_style );
350 free( p_sys->psz_marquee );
351 free( p_sys->psz_urls );
353 vlc_mutex_unlock( &p_sys->lock );
354 vlc_mutex_destroy( &p_sys->lock );
357 /* Delete the RSS variables */
358 var_Destroy( p_filter, CFG_PREFIX "urls" );
359 var_Destroy( p_filter, CFG_PREFIX "speed" );
360 var_Destroy( p_filter, CFG_PREFIX "length" );
361 var_Destroy( p_filter, CFG_PREFIX "ttl" );
362 var_Destroy( p_filter, CFG_PREFIX "images" );
363 var_Destroy( p_filter, CFG_PREFIX "x" );
364 var_Destroy( p_filter, CFG_PREFIX "y" );
365 var_Destroy( p_filter, CFG_PREFIX "position" );
366 var_Destroy( p_filter, CFG_PREFIX "color");
367 var_Destroy( p_filter, CFG_PREFIX "opacity");
368 var_Destroy( p_filter, CFG_PREFIX "size");
369 var_Destroy( p_filter, CFG_PREFIX "title" );
372 /****************************************************************************
373 * Filter: the whole thing
374 ****************************************************************************
375 * This function outputs subpictures at regular time intervals.
376 ****************************************************************************/
377 static subpicture_t *Filter( filter_t *p_filter, mtime_t date )
379 filter_sys_t *p_sys = p_filter->p_sys;
382 subpicture_region_t *p_region;
386 struct rss_feed_t *p_feed;
388 memset( &fmt, 0, sizeof(video_format_t) );
390 vlc_mutex_lock( &p_sys->lock );
393 + ( p_sys->i_cur_char == 0 && p_sys->i_cur_item == ( p_sys->i_title == scroll_title ? -1 : 0 ) ? 5 : 1 )
394 /* ( ... ? 5 : 1 ) means "wait 5 times more for the 1st char" */
395 * p_sys->i_speed > date )
397 vlc_mutex_unlock( &p_sys->lock );
401 /* Do we need to update the feeds ? */
403 && time( NULL ) > p_sys->t_last_update + (time_t)p_sys->i_ttl )
405 msg_Dbg( p_filter, "Forcing update of all the RSS feeds" );
406 if( FetchRSS( p_filter ) )
408 msg_Err( p_filter, "Failed while fetching RSS ... too bad" );
409 vlc_mutex_unlock( &p_sys->lock );
410 return NULL; /* FIXME : we most likely messed up all the data,
411 * so we might need to do something about it */
413 p_sys->t_last_update = time( NULL );
416 p_sys->last_date = date;
418 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 )
420 p_sys->i_cur_char = 0;
422 if( p_sys->i_cur_item >= p_sys->p_feeds[p_sys->i_cur_feed].i_items )
424 if( p_sys->i_title == scroll_title )
425 p_sys->i_cur_item = -1;
427 p_sys->i_cur_item = 0;
428 p_sys->i_cur_feed = (p_sys->i_cur_feed + 1)%p_sys->i_feeds;
432 p_spu = p_filter->pf_sub_buffer_new( p_filter );
435 vlc_mutex_unlock( &p_sys->lock );
439 fmt.i_chroma = VLC_FOURCC('T','E','X','T');
441 p_spu->p_region = p_spu->pf_create_region( VLC_OBJECT(p_filter), &fmt );
442 if( !p_spu->p_region )
444 p_filter->pf_sub_buffer_del( p_filter, p_spu );
445 vlc_mutex_unlock( &p_sys->lock );
449 /* Generate the string that will be displayed. This string is supposed to
450 be p_sys->i_length characters long. */
451 i_item = p_sys->i_cur_item;
452 i_feed = p_sys->i_cur_feed;
453 p_feed = &p_sys->p_feeds[i_feed];
455 if( ( p_feed->p_pic && p_sys->i_title == default_title )
456 || p_sys->i_title == hide_title )
458 /* Don't display the feed's title if we have an image */
459 snprintf( p_sys->psz_marquee, p_sys->i_length, "%s",
460 p_sys->p_feeds[i_feed].p_items[i_item].psz_title
461 +p_sys->i_cur_char );
463 else if( ( !p_feed->p_pic && p_sys->i_title == default_title )
464 || p_sys->i_title == prepend_title )
466 snprintf( p_sys->psz_marquee, p_sys->i_length, "%s : %s",
467 p_sys->p_feeds[i_feed].psz_title,
468 p_sys->p_feeds[i_feed].p_items[i_item].psz_title
469 +p_sys->i_cur_char );
471 else /* scrolling title */
474 snprintf( p_sys->psz_marquee, p_sys->i_length, "%s : %s",
475 p_sys->p_feeds[i_feed].psz_title + p_sys->i_cur_char,
476 p_sys->p_feeds[i_feed].p_items[i_item+1].psz_title );
478 snprintf( p_sys->psz_marquee, p_sys->i_length, "%s",
479 p_sys->p_feeds[i_feed].p_items[i_item].psz_title
480 +p_sys->i_cur_char );
483 while( strlen( p_sys->psz_marquee ) < (unsigned int)p_sys->i_length )
486 if( i_item == p_sys->p_feeds[i_feed].i_items ) break;
487 snprintf( strchr( p_sys->psz_marquee, 0 ),
488 p_sys->i_length - strlen( p_sys->psz_marquee ),
490 p_sys->p_feeds[i_feed].p_items[i_item].psz_title );
493 /* Calls to snprintf might split multibyte UTF8 chars ...
494 * which freetype doesn't like. */
496 char *a = strdup( p_sys->psz_marquee );
498 char *b = p_sys->psz_marquee;
499 EnsureUTF8( p_sys->psz_marquee );
500 /* we want to use ' ' instead of '?' for erroneous chars */
503 if( *b != *a ) *b = ' ';
509 p_spu->p_region->psz_text = strdup(p_sys->psz_marquee);
510 if( p_sys->p_style->i_font_size > 0 )
511 p_spu->p_region->fmt.i_visible_height = p_sys->p_style->i_font_size;
512 p_spu->i_start = date;
514 p_spu->b_ephemer = true;
516 /* where to locate the string: */
517 if( p_sys->i_pos < 0 )
518 { /* set to an absolute xy */
519 p_spu->p_region->i_align = OSD_ALIGN_LEFT | OSD_ALIGN_TOP;
520 p_spu->b_absolute = true;
523 { /* set to one of the 9 relative locations */
524 p_spu->p_region->i_align = p_sys->i_pos;
525 p_spu->b_absolute = false;
528 p_spu->i_x = p_sys->i_xoff;
529 p_spu->i_y = p_sys->i_yoff;
532 p_spu->p_region->p_style = p_sys->p_style;
536 /* Display the feed's image */
537 picture_t *p_pic = p_feed->p_pic;
538 video_format_t fmt_out;
540 memset( &fmt_out, 0, sizeof(video_format_t) );
542 fmt_out.i_chroma = VLC_FOURCC('Y','U','V','A');
543 fmt_out.i_aspect = VOUT_ASPECT_FACTOR;
544 fmt_out.i_sar_num = fmt_out.i_sar_den = 1;
546 fmt_out.i_visible_width = p_pic->p[Y_PLANE].i_visible_pitch;
548 fmt_out.i_visible_height = p_pic->p[Y_PLANE].i_visible_lines;
550 p_region = p_spu->pf_create_region( VLC_OBJECT( p_filter ), &fmt_out );
553 msg_Err( p_filter, "cannot allocate SPU region" );
557 vout_CopyPicture( p_filter, &p_region->picture, p_pic );
558 p_spu->p_region->p_next = p_region;
561 /* Offset text to display right next to the image */
562 p_spu->p_region->i_x = p_pic->p[Y_PLANE].i_visible_pitch;
565 vlc_mutex_unlock( &p_sys->lock );
569 /****************************************************************************
570 * RSS related functions
571 ****************************************************************************
572 * You should always lock the p_filter mutex before using any of these
574 ***************************************************************************/
576 #undef LoadImage /* do not conflict with Win32 API */
578 /****************************************************************************
579 * download and resize image located at psz_url
580 ***************************************************************************/
581 static picture_t *LoadImage( filter_t *p_filter, const char *psz_url )
583 filter_sys_t *p_sys = p_filter->p_sys;
584 video_format_t fmt_in;
585 video_format_t fmt_out;
587 picture_t *p_pic = NULL;
588 image_handler_t *p_handler = image_HandlerCreate( p_filter );
590 memset( &fmt_in, 0, sizeof(video_format_t) );
591 memset( &fmt_out, 0, sizeof(video_format_t) );
593 fmt_out.i_chroma = VLC_FOURCC('Y','U','V','A');
594 p_orig = image_ReadUrl( p_handler, psz_url, &fmt_in, &fmt_out );
598 msg_Warn( p_filter, "Unable to read image %s", psz_url );
600 else if( p_sys->p_style->i_font_size > 0 )
603 fmt_in.i_chroma = VLC_FOURCC('Y','U','V','A');
604 fmt_in.i_height = p_orig->p[Y_PLANE].i_visible_lines;
605 fmt_in.i_width = p_orig->p[Y_PLANE].i_visible_pitch;
606 fmt_out.i_width = p_orig->p[Y_PLANE].i_visible_pitch
607 *p_sys->p_style->i_font_size/p_orig->p[Y_PLANE].i_visible_lines;
608 fmt_out.i_height = p_sys->p_style->i_font_size;
610 p_pic = image_Convert( p_handler, p_orig, &fmt_in, &fmt_out );
611 picture_Release( p_orig );
614 msg_Warn( p_filter, "Error while converting %s", psz_url );
622 image_HandlerDelete( p_handler );
627 /****************************************************************************
628 * remove all ' ' '\t' '\n' '\r' characters from the begining and end of the
630 ***************************************************************************/
631 static char *removeWhiteChars( char *psz_src )
633 char *psz_src2 = strdup( psz_src );
634 char *psz_clean = strdup( psz_src2 );
637 while( ( *psz_clean == ' ' || *psz_clean == '\t'
638 || *psz_clean == '\n' || *psz_clean == '\r' )
639 && *psz_clean != '\0' )
643 i = strlen( psz_clean );
645 ( psz_clean[i] == ' ' || psz_clean[i] == '\t'
646 || psz_clean[i] == '\n' || psz_clean[i] == '\r' ) );
647 psz_clean[i+1] = '\0';
648 psz_clean2 = strdup( psz_clean );
653 /****************************************************************************
654 * FetchRSS (or Atom) feeds
655 ***************************************************************************/
656 static int FetchRSS( filter_t *p_filter)
658 filter_sys_t *p_sys = p_filter->p_sys;
660 stream_t *p_stream = NULL;
662 xml_reader_t *p_xml_reader = NULL;
664 char *psz_eltname = NULL;
665 char *psz_eltvalue = NULL;
666 char *psz_feed = NULL;
667 char *psz_buffer = NULL;
668 char *psz_buffer_2 = NULL;
679 while( p_sys->psz_urls[i_int] != 0 )
680 if( p_sys->psz_urls[i_int++] == '|' )
682 p_sys->p_feeds = (struct rss_feed_t *)malloc( p_sys->i_feeds
683 * sizeof( struct rss_feed_t ) );
685 p_xml = xml_Create( p_filter );
688 msg_Err( p_filter, "Failed to open XML parser" );
692 psz_buffer = strdup( p_sys->psz_urls );
693 psz_buffer_2 = psz_buffer; /* keep track so we can free it */
694 for( i_feed = 0; i_feed < p_sys->i_feeds; i_feed++ )
696 struct rss_feed_t *p_feed = p_sys->p_feeds+i_feed;
698 if( psz_buffer == NULL ) break;
699 if( psz_buffer[0] == 0 ) psz_buffer++;
700 psz_feed = psz_buffer;
701 psz_buffer = strchr( psz_buffer, '|' );
702 if( psz_buffer != NULL ) psz_buffer[0] = 0;
704 p_feed->psz_title = NULL;
705 p_feed->psz_description = NULL;
706 p_feed->psz_link = NULL;
707 p_feed->psz_image = NULL;
708 p_feed->p_pic = NULL;
710 p_feed->p_items = NULL;
712 msg_Dbg( p_filter, "opening %s RSS/Atom feed ...", psz_feed );
714 p_stream = stream_UrlNew( p_filter, psz_feed );
717 msg_Err( p_filter, "Failed to open %s for reading", psz_feed );
721 p_xml_reader = xml_ReaderCreate( p_xml, p_stream );
724 msg_Err( p_filter, "Failed to open %s for parsing", psz_feed );
732 while( xml_ReaderRead( p_xml_reader ) == 1 )
734 switch( xml_ReaderNodeType( p_xml_reader ) )
740 case XML_READER_STARTELEM:
743 psz_eltname = xml_ReaderName( p_xml_reader );
749 msg_Dbg( p_filter, "element name: %s", psz_eltname );
751 if( !strcmp( psz_eltname, "item" ) /* rss */
752 || !strcmp( psz_eltname, "entry" ) ) /* atom */
756 p_feed->p_items = (struct rss_item_t *)realloc( p_feed->p_items, p_feed->i_items * sizeof( struct rss_item_t ) );
757 p_feed->p_items[p_feed->i_items-1].psz_title = NULL;
758 p_feed->p_items[p_feed->i_items-1].psz_description
760 p_feed->p_items[p_feed->i_items-1].psz_link = NULL;
762 else if( !strcmp( psz_eltname, "image" ) ) /* rss */
766 else if( !strcmp( psz_eltname, "link" ) ) /* atom */
768 char *psz_href = NULL;
769 char *psz_rel = NULL;
770 while( xml_ReaderNextAttr( p_xml_reader )
773 char *psz_name = xml_ReaderName( p_xml_reader );
774 char *psz_value = xml_ReaderValue( p_xml_reader );
775 if( !strcmp( psz_name, "rel" ) )
779 else if( !strcmp( psz_name, "href" ) )
781 psz_href = psz_value;
789 if( psz_rel && psz_href )
791 if( !strcmp( psz_rel, "alternate" )
792 && b_is_item == false
793 && b_is_image == false
794 && !p_feed->psz_link )
796 p_feed->psz_link = psz_href;
798 /* this isn't in the rfc but i found some ... */
799 else if( ( !strcmp( psz_rel, "logo" )
800 || !strcmp( psz_rel, "icon" ) )
801 && b_is_item == false
802 && b_is_image == false
803 && !p_feed->psz_image )
805 p_feed->psz_image = psz_href;
820 case XML_READER_ENDELEM:
823 psz_eltname = xml_ReaderName( p_xml_reader );
829 msg_Dbg( p_filter, "element end : %s", psz_eltname );
831 if( !strcmp( psz_eltname, "item" ) /* rss */
832 || !strcmp( psz_eltname, "entry" ) ) /* atom */
837 else if( !strcmp( psz_eltname, "image" ) ) /* rss */
845 case XML_READER_TEXT:
846 if( !psz_eltname ) break;
847 psz_eltvalue = xml_ReaderValue( p_xml_reader );
855 psz_clean = removeWhiteChars( psz_eltvalue );
856 free( psz_eltvalue ); psz_eltvalue = psz_clean;
859 msg_Dbg( p_filter, " text : <%s>", psz_eltvalue );
861 if( b_is_item == true )
863 struct rss_item_t *p_item;
864 p_item = p_feed->p_items+i_item;
865 if( !strcmp( psz_eltname, "title" ) /* rss/atom */
866 && !p_item->psz_title )
868 p_item->psz_title = psz_eltvalue;
870 else if( !strcmp( psz_eltname, "link" ) /* rss */
871 && !p_item->psz_link )
873 p_item->psz_link = psz_eltvalue;
875 else if((!strcmp( psz_eltname, "description" ) /* rss */
876 || !strcmp( psz_eltname, "summary" ) ) /* atom */
877 && !p_item->psz_description )
879 p_item->psz_description = psz_eltvalue;
883 free( psz_eltvalue );
887 else if( b_is_image == true )
889 if( !strcmp( psz_eltname, "url" ) /* rss */
890 && !p_feed->psz_image )
892 p_feed->psz_image = psz_eltvalue;
896 free( psz_eltvalue );
902 if( !strcmp( psz_eltname, "title" ) /* rss/atom */
903 && !p_feed->psz_title )
905 p_feed->psz_title = psz_eltvalue;
907 else if( !strcmp( psz_eltname, "link" ) /* rss */
908 && !p_feed->psz_link )
910 p_feed->psz_link = psz_eltvalue;
912 else if((!strcmp( psz_eltname, "description" ) /* rss */
913 || !strcmp( psz_eltname, "subtitle" ) ) /* atom */
914 && !p_feed->psz_description )
916 p_feed->psz_description = psz_eltvalue;
918 else if( ( !strcmp( psz_eltname, "logo" ) /* atom */
919 || !strcmp( psz_eltname, "icon" ) ) /* atom */
920 && !p_feed->psz_image )
922 p_feed->psz_image = psz_eltvalue;
926 free( psz_eltvalue );
934 if( p_sys->b_images == true
935 && p_feed->psz_image && !p_feed->p_pic )
937 p_feed->p_pic = LoadImage( p_filter, p_feed->psz_image );
940 if( p_xml_reader && p_xml ) xml_ReaderDelete( p_xml, p_xml_reader );
941 if( p_stream ) stream_Delete( p_stream );
942 msg_Dbg( p_filter, "done with %s RSS/Atom feed", psz_feed );
944 free( psz_buffer_2 );
945 if( p_xml ) xml_Delete( p_xml );
950 /****************************************************************************
952 ***************************************************************************/
953 static void FreeRSS( filter_t *p_filter)
955 filter_sys_t *p_sys = p_filter->p_sys;
957 struct rss_item_t *p_item;
958 struct rss_feed_t *p_feed;
963 for( i_feed = 0; i_feed < p_sys->i_feeds; i_feed++ )
965 p_feed = p_sys->p_feeds+i_feed;
966 for( i_item = 0; i_item < p_feed->i_items; i_item++ )
968 p_item = p_feed->p_items+i_item;
969 free( p_item->psz_title );
970 free( p_item->psz_link );
971 free( p_item->psz_description );
973 free( p_feed->p_items );
974 free( p_feed->psz_title);
975 free( p_feed->psz_link );
976 free( p_feed->psz_description );
977 free( p_feed->psz_image );
978 if( p_feed->p_pic != NULL )
979 picture_Release( p_feed->p_pic );
981 free( p_sys->p_feeds );