git.sesse.net Git - vlc/blob - modules/video_filter/rss.c

   1 /*****************************************************************************
   2  * rss.c : rss feed display video plugin for vlc
   3  *****************************************************************************
   4  * Copyright (C) 2003-2006 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Antoine Cellerier <dionoea -at- videolan -dot- org>
   8  *
   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.
  13  *
  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.
  18  *
  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  *****************************************************************************/
  23
  24 /*****************************************************************************
  25  * Preamble
  26  *****************************************************************************/
  27 #include <stdlib.h>                                      /* malloc(), free() */
  28 #include <string.h>
  29
  30 #include <vlc/vlc.h>
  31 #include <vlc/vout.h>
  32
  33 #include "vlc_filter.h"
  34 #include "vlc_block.h"
  35 #include "vlc_osd.h"
  36
  37 #include "vlc_block.h"
  38 #include "vlc_stream.h"
  39 #include "vlc_xml.h"
  40 #include "charset.h"
  41
  42 /*****************************************************************************
  43  * Local prototypes
  44  *****************************************************************************/
  45 static int  CreateFilter ( vlc_object_t * );
  46 static void DestroyFilter( vlc_object_t * );
  47 static subpicture_t *Filter( filter_t *, mtime_t );
  48
  49 static int FetchRSS( filter_t * );
  50 static void FreeRSS( filter_t * );
  51
  52 static int pi_color_values[] = { 0xf0000000, 0x00000000, 0x00808080, 0x00C0C0C0,
  53                0x00FFFFFF, 0x00800000, 0x00FF0000, 0x00FF00FF, 0x00FFFF00,
  54                0x00808000, 0x00008000, 0x00008080, 0x0000FF00, 0x00800080,
  55                0x00000080, 0x000000FF, 0x0000FFFF};
  56 static char *ppsz_color_descriptions[] = { N_("Default"), N_("Black"),
  57                N_("Gray"), N_("Silver"), N_("White"), N_("Maroon"), N_("Red"),
  58                N_("Fuchsia"), N_("Yellow"), N_("Olive"), N_("Green"),
  59                N_("Teal"), N_("Lime"), N_("Purple"), N_("Navy"), N_("Blue"),
  60                N_("Aqua") };
  61
  62 /*****************************************************************************
  63  * filter_sys_t: rss filter descriptor
  64  *****************************************************************************/
  65
  66 struct rss_item_t
  67 {
  68     char *psz_title;
  69     char *psz_description;
  70     char *psz_link;
  71 };
  72
  73 struct rss_feed_t
  74 {
  75     char *psz_title;
  76     char *psz_description;
  77     char *psz_link;
  78
  79     int i_items;
  80     struct rss_item_t *p_items;
  81 };
  82
  83 struct filter_sys_t
  84 {
  85     vlc_mutex_t lock;
  86     vlc_mutex_t *p_lock;
  87
  88     int i_xoff, i_yoff;  /* offsets for the display string in the video window */
  89     int i_pos; /* permit relative positioning (top, bottom, left, right, center) */
  90     int i_speed;
  91     int i_length;
  92
  93     char *psz_marquee;    /* marquee string */
  94
  95     text_style_t *p_style; /* font control */
  96
  97     mtime_t last_date;
  98
  99     char *psz_urls;
 100     int i_feeds;
 101     struct rss_feed_t *p_feeds;
 102
 103     int i_ttl;
 104     time_t t_last_update;
 105
 106     int i_cur_feed;
 107     int i_cur_item;
 108     int i_cur_char;
 109 };
 110
 111 #define MSG_TEXT N_("RSS feed URLs")
 112 #define MSG_LONGTEXT N_("RSS feed '|' (pipe) seperated URLs")
 113 #define SPEED_TEXT N_("RSS feed speed")
 114 #define SPEED_LONGTEXT N_("RSS feed speed (bigger is slower)")
 115 #define LENGTH_TEXT N_("RSS feed max number of chars displayed")
 116 #define LENGTH_LONGTEXT N_("RSS feed max number of chars displayed")
 117 #define TTL_TEXT N_("Number of seconds between each forced refresh of the feeds")
 118 #define TTL_LONGTEXT N_("Number of seconds between each forced refresh of the feeds. If 0, the feeds will never be updated.")
 119
 120
 121 #define POSX_TEXT N_("X offset, from left")
 122 #define POSX_LONGTEXT N_("X offset, from the left screen edge" )
 123 #define POSY_TEXT N_("Y offset, from the top")
 124 #define POSY_LONGTEXT N_("Y offset, down from the top" )
 125 #define OPACITY_TEXT N_("Opacity")
 126 #define OPACITY_LONGTEXT N_("The opacity (inverse of transparency) of " \
 127     "overlay text. 0 = transparent, 255 = totally opaque. " )
 128 #define SIZE_TEXT N_("Font size, pixels")
 129 #define SIZE_LONGTEXT N_("Specify the font size, in pixels, " \
 130     "with -1 = use freetype-fontsize" )
 131
 132 #define COLOR_TEXT N_("Text Default Color")
 133 #define COLOR_LONGTEXT N_("The color of overlay text. 1 byte for each color, hexadecimal. " \
 134     "#000000 = all colors off, " \
 135     "0xFF0000 = just Red, 0xFFFFFF = all color on [White]" )
 136
 137 #define POS_TEXT N_("Marquee position")
 138 #define POS_LONGTEXT N_( \
 139   "You can enforce the marquee position on the video " \
 140   "(0=center, 1=left, 2=right, 4=top, 8=bottom, you can " \
 141   "also use combinations of these values by adding them).")
 142
 143 static int pi_pos_values[] = { 0, 1, 2, 4, 8, 5, 6, 9, 10 };
 144 static char *ppsz_pos_descriptions[] =
 145      { N_("Center"), N_("Left"), N_("Right"), N_("Top"), N_("Bottom"),
 146      N_("Top-Left"), N_("Top-Right"), N_("Bottom-Left"), N_("Bottom-Right") };
 147
 148 /*****************************************************************************
 149  * Module descriptor
 150  *****************************************************************************/
 151 vlc_module_begin();
 152     set_capability( "sub filter", 0 );
 153     set_shortname( "RSS" );
 154     set_callbacks( CreateFilter, DestroyFilter );
 155     set_category( CAT_VIDEO );
 156     set_subcategory( SUBCAT_VIDEO_SUBPIC );
 157     add_string( "rss-urls", "rss", NULL, MSG_TEXT, MSG_LONGTEXT, VLC_FALSE );
 158
 159     set_section( N_("Position"), NULL );
 160     add_integer( "rss-x", -1, NULL, POSX_TEXT, POSX_LONGTEXT, VLC_TRUE );
 161     add_integer( "rss-y", 0, NULL, POSY_TEXT, POSY_LONGTEXT, VLC_TRUE );
 162     add_integer( "rss-position", 5, NULL, POS_TEXT, POS_LONGTEXT, VLC_FALSE );
 163         change_integer_list( pi_pos_values, ppsz_pos_descriptions, 0 );
 164
 165     set_section( N_("Font"), NULL );
 166     /* 5 sets the default to top [1] left [4] */
 167     add_integer_with_range( "rss-opacity", 255, 0, 255, NULL,
 168         OPACITY_TEXT, OPACITY_LONGTEXT, VLC_FALSE );
 169     add_integer( "rss-color", 0xFFFFFF, NULL, COLOR_TEXT, COLOR_LONGTEXT,
 170                   VLC_FALSE );
 171         change_integer_list( pi_color_values, ppsz_color_descriptions, 0 );
 172     add_integer( "rss-size", -1, NULL, SIZE_TEXT, SIZE_LONGTEXT, VLC_FALSE );
 173
 174     set_section( N_("Misc"), NULL );
 175     add_integer( "rss-speed", 100000, NULL, SPEED_TEXT, SPEED_LONGTEXT,
 176                  VLC_FALSE );
 177     add_integer( "rss-length", 60, NULL, LENGTH_TEXT, LENGTH_LONGTEXT,
 178                  VLC_FALSE );
 179     add_integer( "rss-ttl", 1800, NULL, TTL_TEXT, TTL_LONGTEXT, VLC_FALSE );
 180
 181     set_description( _("RSS feed display") );
 182     add_shortcut( "rss" );
 183 vlc_module_end();
 184
 185 /*****************************************************************************
 186  * CreateFilter: allocates RSS video filter
 187  *****************************************************************************/
 188 static int CreateFilter( vlc_object_t *p_this )
 189 {
 190     filter_t *p_filter = (filter_t *)p_this;
 191     filter_sys_t *p_sys;
 192     int i_feed;
 193
 194     /* Allocate structure */
 195     p_sys = p_filter->p_sys = malloc( sizeof( filter_sys_t ) );
 196     if( p_sys == NULL )
 197     {
 198         msg_Err( p_filter, "out of memory" );
 199         return VLC_ENOMEM;
 200     }
 201
 202     vlc_mutex_init( p_filter, &p_sys->lock );
 203     vlc_mutex_lock( &p_sys->lock );
 204
 205     p_sys->psz_urls = var_CreateGetString( p_filter, "rss-urls" );
 206     p_sys->i_cur_feed = 0;
 207     p_sys->i_cur_item = 0;
 208     p_sys->i_cur_char = 0;
 209     p_sys->i_feeds = 0;
 210     p_sys->p_feeds = NULL;
 211     p_sys->i_speed = var_CreateGetInteger( p_filter, "rss-speed" );
 212     p_sys->i_length = var_CreateGetInteger( p_filter, "rss-length" );
 213     p_sys->i_ttl = __MAX( 0, var_CreateGetInteger( p_filter, "rss-ttl" ) );
 214     p_sys->psz_marquee = (char *)malloc( p_sys->i_length );
 215
 216     p_sys->p_style = malloc( sizeof( text_style_t ));
 217     memcpy( p_sys->p_style, &default_text_style, sizeof( text_style_t ));
 218
 219     p_sys->i_xoff = var_CreateGetInteger( p_filter, "rss-x" );
 220     p_sys->i_yoff = var_CreateGetInteger( p_filter, "rss-y" );
 221     p_sys->i_pos = var_CreateGetInteger( p_filter, "rss-position" );
 222     p_sys->p_style->i_font_alpha = 255 - var_CreateGetInteger( p_filter, "rss-opacity" );
 223     p_sys->p_style->i_font_color = var_CreateGetInteger( p_filter, "rss-color" );
 224     p_sys->p_style->i_font_size = var_CreateGetInteger( p_filter, "rss-size" );
 225
 226     if( FetchRSS( p_filter ) )
 227     {
 228         msg_Err( p_filter, "failed while fetching RSS ... too bad" );
 229         vlc_mutex_unlock( &p_sys->lock );
 230         return VLC_EGENERIC;
 231     }
 232     p_sys->t_last_update = time( NULL );
 233
 234     if( p_sys->i_feeds == 0 )
 235     {
 236         vlc_mutex_unlock( &p_sys->lock );
 237         return VLC_EGENERIC;
 238     }
 239     for( i_feed=0; i_feed < p_sys->i_feeds; i_feed ++ )
 240         if( p_sys->p_feeds[i_feed].i_items == 0 )
 241         {
 242             vlc_mutex_unlock( &p_sys->lock );
 243             return VLC_EGENERIC;
 244         }
 245
 246     /* Misc init */
 247     p_filter->pf_sub_filter = Filter;
 248     p_sys->last_date = (mtime_t)0;
 249
 250     vlc_mutex_unlock( &p_sys->lock );
 251
 252     return VLC_SUCCESS;
 253 }
 254 /*****************************************************************************
 255  * DestroyFilter: destroy RSS video filter
 256  *****************************************************************************/
 257 static void DestroyFilter( vlc_object_t *p_this )
 258 {
 259     filter_t *p_filter = (filter_t *)p_this;
 260     filter_sys_t *p_sys = p_filter->p_sys;
 261
 262     vlc_mutex_lock( &p_sys->lock );
 263
 264     if( p_sys->p_style ) free( p_sys->p_style );
 265     if( p_sys->psz_marquee ) free( p_sys->psz_marquee );
 266     free( p_sys->psz_urls );
 267     FreeRSS( p_filter );
 268     vlc_mutex_unlock( &p_sys->lock );
 269     vlc_mutex_destroy( &p_sys->lock );
 270     free( p_sys );
 271
 272     /* Delete the RSS variables */
 273     var_Destroy( p_filter, "rss-urls" );
 274     var_Destroy( p_filter, "rss-speed" );
 275     var_Destroy( p_filter, "rss-length" );
 276     var_Destroy( p_filter, "rss-ttl" );
 277     var_Destroy( p_filter, "rss-x" );
 278     var_Destroy( p_filter, "rss-y" );
 279     var_Destroy( p_filter, "rss-position" );
 280     var_Destroy( p_filter, "rss-color");
 281     var_Destroy( p_filter, "rss-opacity");
 282     var_Destroy( p_filter, "rss-size");
 283 }
 284
 285 /****************************************************************************
 286  * Filter: the whole thing
 287  ****************************************************************************
 288  * This function outputs subpictures at regular time intervals.
 289  ****************************************************************************/
 290 static subpicture_t *Filter( filter_t *p_filter, mtime_t date )
 291 {
 292     filter_sys_t *p_sys = p_filter->p_sys;
 293     subpicture_t *p_spu;
 294     video_format_t fmt;
 295
 296     int i_feed, i_item;
 297
 298     vlc_mutex_lock( &p_sys->lock );
 299
 300     if( p_sys->last_date
 301        + ( p_sys->i_cur_char == 0 && p_sys->i_cur_item == 0 ? 5 : 1 )
 302            /* ( ... ? 5 : 1 ) means "wait more for the 1st char" */
 303        * p_sys->i_speed > date )
 304     {
 305         vlc_mutex_unlock( &p_sys->lock );
 306         return NULL;
 307     }
 308
 309     /* Do we need to update the feeds ? */
 310     if( p_sys->i_ttl
 311         && time( NULL ) > p_sys->t_last_update + (time_t)p_sys->i_ttl )
 312     {
 313         msg_Dbg( p_filter, "Forcing update of all the RSS feeds" );
 314         if( FetchRSS( p_filter ) )
 315         {
 316             msg_Err( p_filter, "failed while fetching RSS ... too bad" );
 317             vlc_mutex_unlock( &p_sys->lock );
 318             return NULL; /* FIXME : we most likely messed up all the data,
 319                           * so we might need to do something about it */
 320         }
 321         p_sys->t_last_update = time( NULL );
 322     }
 323
 324     p_sys->last_date = date;
 325     p_sys->i_cur_char++;
 326     if( p_sys->p_feeds[p_sys->i_cur_feed].p_items[p_sys->i_cur_item].psz_title[p_sys->i_cur_char] == 0 )
 327     {
 328         p_sys->i_cur_char = 0;
 329         p_sys->i_cur_item++;
 330         if( p_sys->i_cur_item >= p_sys->p_feeds[p_sys->i_cur_feed].i_items )
 331         {
 332             p_sys->i_cur_item = 0;
 333             p_sys->i_cur_feed = (p_sys->i_cur_feed + 1)%p_sys->i_feeds;
 334         }
 335     }
 336
 337     p_spu = p_filter->pf_sub_buffer_new( p_filter );
 338     if( !p_spu )
 339     {
 340         vlc_mutex_unlock( &p_sys->lock );
 341         return NULL;
 342     }
 343
 344     memset( &fmt, 0, sizeof(video_format_t) );
 345     fmt.i_chroma = VLC_FOURCC('T','E','X','T');
 346     fmt.i_aspect = 0;
 347     fmt.i_width = 0;
 348     fmt.i_height = 0;
 349     fmt.i_x_offset = 0;
 350     fmt.i_y_offset = 0;
 351     p_spu->p_region = p_spu->pf_create_region( VLC_OBJECT(p_filter), &fmt );
 352     if( !p_spu->p_region )
 353     {
 354         p_filter->pf_sub_buffer_del( p_filter, p_spu );
 355         vlc_mutex_unlock( &p_sys->lock );
 356         return NULL;
 357     }
 358
 359     /* Generate the string that will be displayed. This string is supposed to
 360        be p_sys->i_length characters long. */
 361     i_item = p_sys->i_cur_item;
 362     i_feed = p_sys->i_cur_feed;
 363     snprintf( p_sys->psz_marquee, p_sys->i_length, "%s : %s",
 364               p_sys->p_feeds[i_feed].psz_title,
 365               p_sys->p_feeds[i_feed].p_items[i_item].psz_title
 366               +p_sys->i_cur_char );
 367
 368     while( strlen( p_sys->psz_marquee ) < (unsigned int)p_sys->i_length )
 369     {
 370         i_item++;
 371         if( i_item == p_sys->p_feeds[i_feed].i_items ) break;
 372         snprintf( strchr( p_sys->psz_marquee, 0 ),
 373                   p_sys->i_length - strlen( p_sys->psz_marquee ),
 374                   " - %s",
 375                   p_sys->p_feeds[i_feed].p_items[i_item].psz_title );
 376     }
 377     /* Calls to snprintf might split multibyte UTF8 chars ...
 378      * which freetype doesn't like. */
 379     {
 380         char *a = strdup( p_sys->psz_marquee );
 381         char *a2 = a;
 382         char *b = p_sys->psz_marquee;
 383         EnsureUTF8( p_sys->psz_marquee );
 384         /* we want to use ' ' instead of '?' for erroneous chars */
 385         while( *b != '\0' )
 386         {
 387             if( *b != *a ) *b = ' ';
 388             b++;a++;
 389         }
 390         free( a2 );
 391     }
 392
 393     p_spu->p_region->psz_text = strdup(p_sys->psz_marquee);
 394     p_spu->i_start = date;
 395     p_spu->i_stop  = 0;
 396     p_spu->b_ephemer = VLC_TRUE;
 397
 398     /*  where to locate the string: */
 399     if( p_sys->i_xoff < 0 || p_sys->i_yoff < 0 )
 400     {   /* set to one of the 9 relative locations */
 401         p_spu->i_flags = p_sys->i_pos;
 402         p_spu->i_x = 0;
 403         p_spu->i_y = 0;
 404         p_spu->b_absolute = VLC_FALSE;
 405     }
 406     else
 407     {   /*  set to an absolute xy, referenced to upper left corner */
 408         p_spu->i_flags = OSD_ALIGN_LEFT | OSD_ALIGN_TOP;
 409         p_spu->i_x = p_sys->i_xoff;
 410         p_spu->i_y = p_sys->i_yoff;
 411         p_spu->b_absolute = VLC_TRUE;
 412     }
 413     p_spu->i_height = 1;
 414     p_spu->p_region->p_style = p_sys->p_style;
 415
 416     vlc_mutex_unlock( &p_sys->lock );
 417     return p_spu;
 418 }
 419
 420 /****************************************************************************
 421  * RSS related functions
 422  ****************************************************************************
 423  * You should always lock the p_filter mutex before using any of these
 424  * functions
 425  ***************************************************************************/
 426
 427
 428 /****************************************************************************
 429  * remove all ' ' '\t' '\n' '\r' characters from the begining and end of the
 430  * string.
 431  ***************************************************************************/
 432 char *removeWhiteChars( char *psz_src )
 433 {
 434     char *psz_src2 = strdup( psz_src );
 435     char *psz_clean = strdup( psz_src2 );
 436     char *psz_clean2;
 437     int i;
 438     while( ( *psz_clean == ' ' || *psz_clean == '\t'
 439            || *psz_clean == '\n' || *psz_clean == '\r' )
 440            && *psz_clean != '\0' )
 441     {
 442         psz_clean++;
 443     }
 444     i = strlen( psz_clean );
 445     while( --i > 0 &&
 446          ( psz_clean[i] == ' ' || psz_clean[i] == '\t'
 447         || psz_clean[i] == '\n' || psz_clean[i] == '\r' ) );
 448     psz_clean[i+1] = '\0';
 449     psz_clean2 = strdup( psz_clean );
 450     free( psz_src2 );
 451     return psz_clean2;
 452 }
 453
 454 /****************************************************************************
 455  * FetchRSS
 456  ***************************************************************************/
 457 static int FetchRSS( filter_t *p_filter)
 458 {
 459     filter_sys_t *p_sys = p_filter->p_sys;
 460
 461     stream_t *p_stream = NULL;
 462     xml_t *p_xml = NULL;
 463     xml_reader_t *p_xml_reader = NULL;
 464
 465     char *psz_eltname = NULL;
 466     char *psz_eltvalue = NULL;
 467     char *psz_feed = NULL;
 468     char *psz_buffer = NULL;
 469     char *psz_buffer_2 = NULL;
 470
 471     int i_feed;
 472     int i_item;
 473     int i_is_item;
 474     int i_int;
 475
 476     FreeRSS( p_filter );
 477     p_sys->i_feeds = 1;
 478     i_int = 0;
 479     while( p_sys->psz_urls[i_int] != 0 )
 480         if( p_sys->psz_urls[i_int++] == '|' )
 481             p_sys->i_feeds++;
 482     p_sys->p_feeds = (struct rss_feed_t *)malloc( p_sys->i_feeds
 483                                 * sizeof( struct rss_feed_t ) );
 484
 485     p_xml = xml_Create( p_filter );
 486     if( !p_xml )
 487     {
 488         msg_Err( p_filter, "Failed to open XML parser" );
 489         return 1;
 490     }
 491
 492     psz_buffer = strdup( p_sys->psz_urls );
 493     psz_buffer_2 = psz_buffer; /* keep track so we can free it */
 494     for( i_feed = 0; i_feed < p_sys->i_feeds; i_feed++ )
 495     {
 496         struct rss_feed_t *p_feed = p_sys->p_feeds+i_feed;
 497
 498         if( psz_buffer == NULL ) break;
 499         if( psz_buffer[0] == 0 ) psz_buffer++;
 500         psz_feed = psz_buffer;
 501         psz_buffer = strchr( psz_buffer, '|' );
 502         if( psz_buffer != NULL ) psz_buffer[0] = 0;
 503
 504         p_feed->psz_title = NULL;
 505         p_feed->psz_description = NULL;
 506         p_feed->psz_link = NULL;
 507         p_feed->i_items = 0;
 508         p_feed->p_items = NULL;
 509
 510         msg_Dbg( p_filter, "Opening %s RSS feed ...", psz_feed );
 511
 512         p_stream = stream_UrlNew( p_filter, psz_feed );
 513         if( !p_stream )
 514         {
 515             msg_Err( p_filter, "Failed to open %s for reading", psz_feed );
 516             return 1;
 517         }
 518
 519         p_xml_reader = xml_ReaderCreate( p_xml, p_stream );
 520         if( !p_xml_reader )
 521         {
 522             msg_Err( p_filter, "Failed to open %s for parsing", psz_feed );
 523             return 1;
 524         }
 525
 526         i_item = 0;
 527         i_is_item = VLC_FALSE;
 528
 529         while( xml_ReaderRead( p_xml_reader ) == 1 )
 530         {
 531             switch( xml_ReaderNodeType( p_xml_reader ) )
 532             {
 533                 // Error
 534                 case -1:
 535                     return 1;
 536
 537                 case XML_READER_STARTELEM:
 538                     if( psz_eltname )
 539                     {
 540                         free( psz_eltname );
 541                         psz_eltname = NULL;
 542                     }
 543                     psz_eltname = xml_ReaderName( p_xml_reader );
 544                     if( !psz_eltname )
 545                     {
 546                         return 1;
 547                     }
 548 #                   ifdef RSS_DEBUG
 549                     msg_Dbg( p_filter, "element name : %s", psz_eltname );
 550 #                   endif
 551                     if( !strcmp( psz_eltname, "item" ) )
 552                     {
 553                         i_is_item = VLC_TRUE;
 554                         p_feed->i_items++;
 555                         p_feed->p_items = (struct rss_item_t *)realloc( p_feed->p_items, p_feed->i_items * sizeof( struct rss_item_t ) );
 556                         p_feed->p_items[p_feed->i_items-1].psz_title = NULL;
 557                         p_feed->p_items[p_feed->i_items-1].psz_description
 558                                                                      = NULL;
 559                         p_feed->p_items[p_feed->i_items-1].psz_link = NULL;
 560                     }
 561                     break;
 562
 563                 case XML_READER_ENDELEM:
 564                     if( psz_eltname )
 565                     {
 566                         free( psz_eltname );
 567                         psz_eltname = NULL;
 568                     }
 569                     psz_eltname = xml_ReaderName( p_xml_reader );
 570                     if( !psz_eltname )
 571                     {
 572                         return 1;
 573                     }
 574 #                   ifdef RSS_DEBUG
 575                     msg_Dbg( p_filter, "element end : %s", psz_eltname );
 576 #                   endif
 577                     if( !strcmp( psz_eltname, "item" ) )
 578                     {
 579                         i_is_item = VLC_FALSE;
 580                         i_item++;
 581                     }
 582                     free( psz_eltname );
 583                     psz_eltname = NULL;
 584                     break;
 585
 586                 case XML_READER_TEXT:
 587                     psz_eltvalue = xml_ReaderValue( p_xml_reader );
 588                     if( !psz_eltvalue )
 589                     {
 590                         return 1;
 591                     }
 592                     else
 593                     {
 594                         char *psz_clean;
 595                         psz_clean = removeWhiteChars( psz_eltvalue );
 596                         free( psz_eltvalue ); psz_eltvalue = psz_clean;
 597                     }
 598 #                   ifdef RSS_DEBUG
 599                     msg_Dbg( p_filter, "  text : <%s>", psz_eltvalue );
 600 #                   endif
 601                     if( i_is_item == VLC_FALSE )
 602                     {
 603                         if( !strcmp( psz_eltname, "title" ) )
 604                         {
 605                             p_feed->psz_title = psz_eltvalue;
 606                         }
 607                         else if( !strcmp( psz_eltname, "link" ) )
 608                         {
 609                             p_feed->psz_link = psz_eltvalue;
 610                         }
 611                         else if( !strcmp( psz_eltname, "description" ) )
 612                         {
 613                             p_feed->psz_description = psz_eltvalue;
 614                         }
 615                         else
 616                         {
 617                             free( psz_eltvalue );
 618                             psz_eltvalue = NULL;
 619                         }
 620                     }
 621                     else
 622                     {
 623                         struct rss_item_t *p_item;
 624                         p_item = p_feed->p_items+i_item;
 625                         if( !strcmp( psz_eltname, "title" ) )
 626                         {
 627                             p_item->psz_title = psz_eltvalue;
 628                         }
 629                         else if( !strcmp( psz_eltname, "link" ) )
 630                         {
 631                             p_item->psz_link = psz_eltvalue;
 632                         }
 633                         else if( !strcmp( psz_eltname, "description" ) )
 634                         {
 635                             p_item->psz_description = psz_eltvalue;
 636                         }
 637                         else
 638                         {
 639                             free( psz_eltvalue );
 640                             psz_eltvalue = NULL;
 641                         }
 642                     }
 643                     break;
 644             }
 645         }
 646
 647         if( p_xml_reader && p_xml ) xml_ReaderDelete( p_xml, p_xml_reader );
 648         if( p_stream ) stream_Delete( p_stream );
 649         msg_Dbg( p_filter, "Done with %s RSS feed.", psz_feed );
 650     }
 651     free( psz_buffer_2 );
 652     if( p_xml ) xml_Delete( p_xml );
 653
 654     return 0;
 655 }
 656
 657 /****************************************************************************
 658  * FreeRSS
 659  ***************************************************************************/
 660 static void FreeRSS( filter_t *p_filter)
 661 {
 662     filter_sys_t *p_sys = p_filter->p_sys;
 663
 664     struct rss_item_t *p_item;
 665     struct rss_feed_t *p_feed;
 666
 667     int i_feed;
 668     int i_item;
 669
 670     for( i_feed = 0; i_feed < p_sys->i_feeds; i_feed++ )
 671     {
 672         p_feed = p_sys->p_feeds+i_feed;
 673         for( i_item = 0; i_item < p_feed->i_items; i_item++ )
 674         {
 675             p_item = p_feed->p_items+i_item;
 676             free( p_item->psz_title );
 677             free( p_item->psz_link );
 678             free( p_item->psz_description );
 679         }
 680         free( p_feed->p_items );
 681         free( p_feed->psz_title);
 682         free( p_feed->psz_link );
 683         free( p_feed->psz_description );
 684     }
 685     free( p_sys->p_feeds );
 686     p_sys->i_feeds = 0;
 687 }