git.sesse.net Git - vlc/blob - modules/control/http/macro.c

   1 /*****************************************************************************
   2  * macro.c : Custom <vlc> macro handling
   3  *****************************************************************************
   4  * Copyright (C) 2001-2005 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Gildas Bazin <gbazin@netcourrier.com>
   8  *          Laurent Aimar <fenrir@via.ecp.fr>
   9  *          Christophe Massiot <massiot@via.ecp.fr>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  24  *****************************************************************************/
  25 #ifdef HAVE_CONFIG_H
  26 # include "config.h"
  27 #endif
  28
  29 #include "http.h"
  30 #include "macros.h"
  31 #include "vlc_url.h"
  32
  33 static int MacroParse( macro_t *m, char *psz_src )
  34 {
  35     char *dup = strdup( (char *)psz_src );
  36     char *src = dup;
  37     char *p;
  38     int     i_skip;
  39
  40 #define EXTRACT( name, l ) \
  41         src += l;    \
  42         p = strchr( src, '"' );             \
  43         if( p )                             \
  44         {                                   \
  45             *p++ = '\0';                    \
  46         }                                   \
  47         m->name = strdup( src );            \
  48         if( !p )                            \
  49         {                                   \
  50             break;                          \
  51         }                                   \
  52         src = p;
  53
  54     /* init m */
  55     m->id = NULL;
  56     m->param1 = NULL;
  57     m->param2 = NULL;
  58
  59     /* parse */
  60     src += 4;
  61
  62     while( *src )
  63     {
  64         while( *src == ' ')
  65         {
  66             src++;
  67         }
  68         if( !strncmp( src, "id=\"", 4 ) )
  69         {
  70             EXTRACT( id, 4 );
  71         }
  72         else if( !strncmp( src, "param1=\"", 8 ) )
  73         {
  74             EXTRACT( param1, 8 );
  75         }
  76         else if( !strncmp( src, "param2=\"", 8 ) )
  77         {
  78             EXTRACT( param2, 8 );
  79         }
  80         else
  81         {
  82             break;
  83         }
  84     }
  85     if( strstr( src, "/>" ) )
  86     {
  87         src = strstr( src, "/>" ) + 2;
  88     }
  89     else
  90     {
  91         src += strlen( src );
  92     }
  93
  94     if( m->id == NULL )
  95     {
  96         m->id = strdup( "" );
  97     }
  98     if( m->param1 == NULL )
  99     {
 100         m->param1 = strdup( "" );
 101     }
 102     if( m->param2 == NULL )
 103     {
 104         m->param2 = strdup( "" );
 105     }
 106     i_skip = src - dup;
 107
 108     free( dup );
 109     return i_skip;
 110 #undef EXTRACT
 111 }
 112
 113 static void MacroClean( macro_t *m )
 114 {
 115     free( m->id );
 116     free( m->param1 );
 117     free( m->param2 );
 118 }
 119
 120 static int StrToMacroType( const char *name )
 121 {
 122     int i;
 123
 124     if( !name || *name == '\0')
 125     {
 126         return MVLC_UNKNOWN;
 127     }
 128     for( i = 0; StrToMacroTypeTab[i].psz_name != NULL; i++ )
 129     {
 130         if( !strcmp( name, StrToMacroTypeTab[i].psz_name ) )
 131         {
 132             return StrToMacroTypeTab[i].i_type;
 133         }
 134     }
 135     return MVLC_UNKNOWN;
 136 }
 137
 138 static void MacroDo( httpd_file_sys_t *p_args,
 139                      macro_t *m,
 140                      char *p_request, int i_request,
 141                      char **pp_data,  int *pi_data,
 142                      char **pp_dst )
 143 {
 144     intf_thread_t  *p_intf = p_args->p_intf;
 145     intf_sys_t     *p_sys = p_args->p_intf->p_sys;
 146     char control[512];
 147
 148 #define ALLOC( l ) \
 149     {               \
 150         int __i__ = *pp_dst - *pp_data; \
 151         *pi_data += (l);                  \
 152         *pp_data = realloc( *pp_data, *pi_data );   \
 153         *pp_dst = (*pp_data) + __i__;   \
 154     }
 155 #define PRINT( str ) \
 156     ALLOC( strlen( str ) + 1 ); \
 157     *pp_dst += sprintf( *pp_dst, "%s", str );
 158
 159 #define PRINTS( str, s ) \
 160     ALLOC( strlen( str ) + strlen( s ) + 1 ); \
 161     { \
 162         char * psz_cur = *pp_dst; \
 163         *pp_dst += sprintf( *pp_dst, str, s ); \
 164         while( psz_cur && *psz_cur ) \
 165         {  \
 166             /* Prevent script injection */ \
 167             if( *psz_cur == '<' ) *psz_cur = '*'; \
 168             if( *psz_cur == '>' ) *psz_cur = '*'; \
 169             psz_cur++ ; \
 170         } \
 171     }
 172
 173     switch( StrToMacroType( m->id ) )
 174     {
 175         case MVLC_CONTROL:
 176             if( i_request <= 0 )
 177             {
 178                 break;
 179             }
 180             ExtractURIValue( p_request, "control", control, 512 );
 181             if( *m->param1 && !strstr( m->param1, control ) )
 182             {
 183                 msg_Warn( p_intf, "unauthorized control=%s", control );
 184                 break;
 185             }
 186             switch( StrToMacroType( control ) )
 187             {
 188                 case MVLC_PLAY:
 189                 {
 190                     int i_item;
 191                     char item[512];
 192
 193                     ExtractURIValue( p_request, "item", item, 512 );
 194                     i_item = atoi( item );
 195                     /* id = 0 : simply ask playlist to play */
 196                     if( i_item == 0 )
 197                     {
 198                         playlist_Play( p_sys->p_playlist );
 199                         msg_Dbg( p_intf, "requested playlist play" );
 200                         break;
 201                     }
 202                     //TODO: really locked here ?
 203                     playlist_Control( p_sys->p_playlist, PLAYLIST_VIEWPLAY,
 204                                       true, NULL,
 205                                       playlist_ItemGetById( p_sys->p_playlist,
 206                                       i_item ) );
 207                     msg_Dbg( p_intf, "requested playlist item: %i", i_item );
 208                     break;
 209                 }
 210                 case MVLC_STOP:
 211                     playlist_Control( p_sys->p_playlist, PLAYLIST_STOP,
 212                                       true );
 213                     msg_Dbg( p_intf, "requested playlist stop" );
 214                     break;
 215                 case MVLC_PAUSE:
 216                     playlist_Control( p_sys->p_playlist, PLAYLIST_PAUSE,
 217                                       true );
 218                     msg_Dbg( p_intf, "requested playlist pause" );
 219                     break;
 220                 case MVLC_NEXT:
 221                     playlist_Control( p_sys->p_playlist, PLAYLIST_SKIP,
 222                                       true, 1 );
 223                     msg_Dbg( p_intf, "requested playlist next" );
 224                     break;
 225                 case MVLC_PREVIOUS:
 226                     playlist_Control( p_sys->p_playlist, PLAYLIST_SKIP,
 227                                       true, -1 );
 228                     msg_Dbg( p_intf, "requested playlist previous" );
 229                     break;
 230                 case MVLC_FULLSCREEN:
 231                     if( p_sys->p_input )
 232                     {
 233                         vout_thread_t *p_vout;
 234
 235                         p_vout = input_GetVout( p_sys->p_input );
 236                         if( p_vout )
 237                         {
 238                             p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 239                             vlc_object_release( p_vout );
 240                             msg_Dbg( p_intf, "requested fullscreen toggle" );
 241                         }
 242                     }
 243                     break;
 244                 case MVLC_SEEK:
 245                 {
 246                     char value[30];
 247                     ExtractURIValue( p_request, "seek_value", value, 30 );
 248                     decode_URI( value );
 249                     HandleSeek( p_intf, value );
 250                     break;
 251                 }
 252                 case MVLC_VOLUME:
 253                 {
 254                     char vol[8];
 255                     audio_volume_t i_volume;
 256                     int i_value;
 257
 258                     ExtractURIValue( p_request, "value", vol, 8 );
 259                     aout_VolumeGet( p_intf, &i_volume );
 260                     decode_URI( vol );
 261
 262                     if( vol[0] == '+' )
 263                     {
 264                         i_value = atoi( vol + 1 );
 265                         if( (i_volume + i_value) > AOUT_VOLUME_MAX )
 266                         {
 267                             aout_VolumeSet( p_intf , AOUT_VOLUME_MAX );
 268                             msg_Dbg( p_intf, "requested volume set: max" );
 269                         }
 270                         else
 271                         {
 272                             aout_VolumeSet( p_intf , (i_volume + i_value) );
 273                             msg_Dbg( p_intf, "requested volume set: +%i", (i_volume + i_value) );
 274                         }
 275                     }
 276                     else if( vol[0] == '-' )
 277                     {
 278                         i_value = atoi( vol + 1 );
 279                         if( (i_volume - i_value) < AOUT_VOLUME_MIN )
 280                         {
 281                             aout_VolumeSet( p_intf , AOUT_VOLUME_MIN );
 282                             msg_Dbg( p_intf, "requested volume set: min" );
 283                         }
 284                         else
 285                         {
 286                             aout_VolumeSet( p_intf , (i_volume - i_value) );
 287                             msg_Dbg( p_intf, "requested volume set: -%i", (i_volume - i_value) );
 288                         }
 289                     }
 290                     else if( strstr(vol, "%") != NULL )
 291                     {
 292                         i_value = atoi( vol );
 293                         if( (i_value <= 400) && (i_value>=0) ){
 294                             aout_VolumeSet( p_intf, (i_value * (AOUT_VOLUME_MAX - AOUT_VOLUME_MIN))/400+AOUT_VOLUME_MIN);
 295                             msg_Dbg( p_intf, "requested volume set: %i%%", atoi( vol ));
 296                         }
 297                     }
 298                     else
 299                     {
 300                         i_value = atoi( vol );
 301                         if( ( i_value <= AOUT_VOLUME_MAX ) && ( i_value >= AOUT_VOLUME_MIN ) )
 302                         {
 303                             aout_VolumeSet( p_intf , atoi( vol ) );
 304                             msg_Dbg( p_intf, "requested volume set: %i", atoi( vol ) );
 305                         }
 306                     }
 307                     break;
 308                 }
 309
 310                 /* playlist management */
 311                 case MVLC_ADD:
 312                 {
 313                     char mrl[1024], psz_name[1024], tmp[1024];
 314                     char *p, *str;
 315                     input_item_t *p_input;
 316
 317                     ExtractURIValue( p_request, "mrl", tmp, 1024 );
 318                     decode_URI( tmp );
 319                     ExtractURIValue( p_request, "name", psz_name, 1024 );
 320                     decode_URI( psz_name );
 321                     if( !*psz_name )
 322                     {
 323                         memcpy( psz_name, tmp, 1024 );
 324                     }
 325                     /* addslashes for backward compatibility with the old
 326                      * http intf */
 327                     p = mrl; str = tmp;
 328                     while( *str != '\0' )
 329                     {
 330                         if( *str == '"' || *str == '\'' || *str == '\\' )
 331                         {
 332                             *p++ = '\\';
 333                         }
 334                         *p++ = *str;
 335                         str++;
 336                     }
 337                     *p = '\0';
 338
 339                     p_input = MRLParse( p_intf, mrl, psz_name );
 340
 341                     char *psz_uri = p_input ? input_item_GetURI( p_input ) : NULL;
 342                     if( psz_uri && *psz_uri &&
 343                         playlist_AddInput( p_sys->p_playlist, p_input,
 344                                            PLAYLIST_APPEND, PLAYLIST_END,
 345                                            true, false) == VLC_SUCCESS )
 346                         msg_Dbg( p_intf, "requested mrl add: %s", mrl );
 347                     else
 348                         msg_Warn( p_intf, "adding mrl failed: %s", mrl );
 349                     free( psz_uri );
 350                     if( p_input )
 351                         vlc_gc_decref( p_input );
 352                     break;
 353                 }
 354                 case MVLC_DEL:
 355                 {
 356                     int *p_items = NULL;
 357                     size_t i_nb_items = 0;
 358                     char item[512];
 359                     const char *p_parser = p_request;
 360
 361                     /* Get the list of items to delete */
 362                     while( (p_parser =
 363                             ExtractURIValue( p_parser, "item", item, 512 )) )
 364                     {
 365                         if( !*item ) continue;
 366
 367                         int i_item = atoi( item );
 368                         p_items = realloc( p_items, (i_nb_items + 1) *
 369                                            sizeof(*p_items) );
 370                         p_items[i_nb_items] = i_item;
 371                         i_nb_items++;
 372                     }
 373
 374                     for( size_t i = 0; i < i_nb_items; i++ )
 375                     {
 376                         playlist_item_t *p_item;
 377
 378                         msg_Dbg( p_intf, "requested playlist delete: %d",
 379                                  p_items[i] );
 380                         p_item = playlist_ItemGetById( p_sys->p_playlist,
 381                                                        p_items[i] );
 382                         if( p_item )
 383                             playlist_DeleteFromInput( p_sys->p_playlist,
 384                                                       p_item->p_input,
 385                                                       false );
 386                     }
 387
 388                     free( p_items );
 389                     break;
 390                 }
 391                 case MVLC_KEEP:
 392                 {
 393                     int *p_items = NULL;
 394                     size_t i_nb_items = 0, i;
 395                     char item[512];
 396                     const char *p_parser = p_request;
 397
 398                     /* Get the list of items to keep */
 399                     while( (p_parser =
 400                        ExtractURIValue( p_parser, "item", item, 512 )) )
 401                     {
 402                         if( !*item ) continue;
 403
 404                         int i_item = atoi( item );
 405                         p_items = realloc( p_items, (i_nb_items + 1) *
 406                                            sizeof(*p_items) );
 407                         p_items[i_nb_items] = i_item;
 408                         i_nb_items++;
 409                     }
 410
 411                     for( i = 0; i < p_sys->p_playlist->items.i_size; i++ )
 412                     {
 413                         size_t j;
 414
 415                         /* Check if the item is in the keep list */
 416                         for( j = 0 ; j < i_nb_items ; j++ )
 417                         {
 418                             if( p_items[j] ==
 419                                 ARRAY_VAL(p_sys->p_playlist->items,i)->i_id)
 420                                 break;
 421                         }
 422                         if( j == i_nb_items )
 423                         {
 424                             msg_Dbg( p_intf, "requested playlist delete: %d",
 425                                    p_sys->p_playlist->items.p_elems[i]->i_id );
 426                             playlist_DeleteFromInput( p_sys->p_playlist,
 427                                 p_sys->p_playlist->items.p_elems[i]->p_input,
 428                                                       false );
 429                         }
 430                     }
 431
 432                     free( p_items );
 433                     break;
 434                 }
 435                 case MVLC_EMPTY:
 436                 {
 437                     playlist_Clear( p_sys->p_playlist, false );
 438                     msg_Dbg( p_intf, "requested playlist empty" );
 439                     break;
 440                 }
 441                 case MVLC_SORT:
 442                 {
 443                     char type[12];
 444                     char order[2];
 445                     char item[512];
 446                     int i_order;
 447                     int i_item;
 448
 449                     ExtractURIValue( p_request, "type", type, 12 );
 450                     ExtractURIValue( p_request, "order", order, 2 );
 451                     ExtractURIValue( p_request, "item", item, 512 );
 452                     i_item = atoi( item );
 453
 454                     if( order[0] == '0' ) i_order = ORDER_NORMAL;
 455                     else i_order = ORDER_REVERSE;
 456
 457                     if( !strcmp( type , "title" ) )
 458                     {
 459                         playlist_RecursiveNodeSort( p_sys->p_playlist,
 460                                                     /* Ugly hack,but not worse than before ... */
 461                                                     p_sys->p_playlist->p_root_onelevel,
 462                                                     SORT_TITLE_NODES_FIRST,
 463                                                     ( i_order == 0 ) ? ORDER_NORMAL : ORDER_REVERSE );
 464                         msg_Dbg( p_intf, "requested playlist sort by title (%d)" , i_order );
 465                     }
 466                     else if( !strcmp( type , "author" ) )
 467                     {
 468                         playlist_RecursiveNodeSort( p_sys->p_playlist, /*playlist_ItemGetById( p_sys->p_playlist, i_item ),*/
 469                                                     p_sys->p_playlist->p_root_onelevel,
 470                                                     SORT_ARTIST,
 471                                                     ( i_order == 0 ) ? ORDER_NORMAL : ORDER_REVERSE );
 472                         msg_Dbg( p_intf, "requested playlist sort by author (%d)" , i_order );
 473                     }
 474                     else if( !strcmp( type , "shuffle" ) )
 475                     {
 476                         playlist_RecursiveNodeSort( p_sys->p_playlist, /*playlist_ItemGetById( p_sys->p_playlist, i_item ),*/
 477                                                     p_sys->p_playlist->p_root_onelevel,
 478                                                     SORT_RANDOM,
 479                                                     ( i_order == 0 ) ? ORDER_NORMAL : ORDER_REVERSE );
 480                         msg_Dbg( p_intf, "requested playlist shuffle");
 481                     }
 482
 483                     break;
 484                 }
 485                 case MVLC_MOVE:
 486                 {
 487                     char psz_pos[6];
 488                     char psz_newpos[6];
 489                     int i_pos;
 490                     int i_newpos;
 491                     ExtractURIValue( p_request, "psz_pos", psz_pos, 6 );
 492                     ExtractURIValue( p_request, "psz_newpos", psz_newpos, 6 );
 493                     i_pos = atoi( psz_pos );
 494                     i_newpos = atoi( psz_newpos );
 495                     /* FIXME FIXME TODO TODO XXX XXX
 496                     ( duplicate from rpn.c )
 497                     if ( i_pos < i_newpos )
 498                     {
 499                         playlist_Move( p_sys->p_playlist, i_pos, i_newpos + 1 );
 500                     }
 501                     else
 502                     {
 503                         playlist_Move( p_sys->p_playlist, i_pos, i_newpos );
 504                     }
 505                     msg_Dbg( p_intf, "requested move playlist item %d to %d", i_pos, i_newpos);
 506                     FIXME FIXME TODO TODO XXX XXX */
 507                     break;
 508                 }
 509
 510                 /* admin function */
 511                 case MVLC_CLOSE:
 512                 {
 513                     char id[512];
 514                     ExtractURIValue( p_request, "id", id, 512 );
 515                     msg_Dbg( p_intf, "requested close id=%s", id );
 516 #if 0
 517                     if( p_sys->p_httpd->pf_control( p_sys->p_httpd, HTTPD_SET_CLOSE, id, NULL ) )
 518                     {
 519                         msg_Warn( p_intf, "close failed for id=%s", id );
 520                     }
 521 #endif
 522                     break;
 523                 }
 524                 case MVLC_SHUTDOWN:
 525                 {
 526                     msg_Dbg( p_intf, "requested shutdown" );
 527                     libvlc_Quit( p_intf->p_libvlc );
 528                     break;
 529                 }
 530 #ifdef ENABLE_VLM
 531                 /* vlm */
 532                 case MVLC_VLM_NEW:
 533                 case MVLC_VLM_SETUP:
 534                 {
 535                     static const char vlm_properties[][9] =
 536                     {
 537                         /* no args */
 538                         "enabled", "disabled", "loop", "unloop",
 539                         /* args required */
 540                         "input", "output", "option", "date", "period",
 541                         "repeat", "append", "",
 542                     };
 543                     vlm_message_t *vlm_answer;
 544                     char name[512];
 545                     char *psz = malloc( strlen( p_request ) + 1000 );
 546                     char *p = psz;
 547                     char *vlm_error;
 548                     int i;
 549
 550                     if( p_intf->p_sys->p_vlm == NULL )
 551                         p_intf->p_sys->p_vlm = vlm_New( p_intf );
 552
 553                     if( p_intf->p_sys->p_vlm == NULL )
 554                     {
 555                         free( psz );
 556                         break;
 557                     }
 558
 559                     ExtractURIValue( p_request, "name", name, 512 );
 560                     if( StrToMacroType( control ) == MVLC_VLM_NEW )
 561                     {
 562                         char type[20];
 563                         ExtractURIValue( p_request, "type", type, 20 );
 564                         p += sprintf( psz, "new %s %s", name, type );
 565                     }
 566                     else
 567                     {
 568                         p += sprintf( psz, "setup %s", name );
 569                     }
 570                     /* Parse the request */
 571                     for( i = 0; vlm_properties[i][0]; i++ )
 572                     {
 573                         char val[512];
 574                         ExtractURIValue( p_request,
 575                                                vlm_properties[i], val, 512 );
 576                         decode_URI( val );
 577                         if( strlen( val ) > 0 && i >= 4 )
 578                         {
 579                             p += sprintf( p, " %s %s", vlm_properties[i], val );
 580                         }
 581                         else if( TestURIParam( p_request, vlm_properties[i] ) && i < 4 )
 582                         {
 583                             p += sprintf( p, " %s", vlm_properties[i] );
 584                         }
 585                     }
 586                     vlm_ExecuteCommand( p_intf->p_sys->p_vlm, psz, &vlm_answer );
 587                     if( vlm_answer->psz_value == NULL ) /* there is no error */
 588                     {
 589                         vlm_error = strdup( "" );
 590                     }
 591                     else
 592                     {
 593                         if( asprintf( &vlm_error , "%s : %s" ,
 594                                       vlm_answer->psz_name,
 595                                       vlm_answer->psz_value ) == -1 )
 596                             vlm_error = NULL;
 597                     }
 598
 599                     mvar_AppendNewVar( p_args->vars, "vlm_error", vlm_error );
 600
 601                     vlm_MessageDelete( vlm_answer );
 602                     free( vlm_error );
 603                     free( psz );
 604                     break;
 605                 }
 606
 607                 case MVLC_VLM_DEL:
 608                 {
 609                     vlm_message_t *vlm_answer;
 610                     char name[512];
 611                     char psz[512+10];
 612                     if( p_intf->p_sys->p_vlm == NULL )
 613                         p_intf->p_sys->p_vlm = vlm_New( p_intf );
 614
 615                     if( p_intf->p_sys->p_vlm == NULL ) break;
 616
 617                     ExtractURIValue( p_request, "name", name, 512 );
 618                     sprintf( psz, "del %s", name );
 619
 620                     vlm_ExecuteCommand( p_intf->p_sys->p_vlm, psz, &vlm_answer );
 621                     /* FIXME do a vlm_answer -> var stack conversion */
 622                     vlm_MessageDelete( vlm_answer );
 623                     break;
 624                 }
 625
 626                 case MVLC_VLM_PLAY:
 627                 case MVLC_VLM_PAUSE:
 628                 case MVLC_VLM_STOP:
 629                 case MVLC_VLM_SEEK:
 630                 {
 631                     vlm_message_t *vlm_answer;
 632                     char name[512];
 633                     char psz[512+10];
 634                     if( p_intf->p_sys->p_vlm == NULL )
 635                         p_intf->p_sys->p_vlm = vlm_New( p_intf );
 636
 637                     if( p_intf->p_sys->p_vlm == NULL ) break;
 638
 639                     ExtractURIValue( p_request, "name", name, 512 );
 640                     if( StrToMacroType( control ) == MVLC_VLM_PLAY )
 641                         sprintf( psz, "control %s play", name );
 642                     else if( StrToMacroType( control ) == MVLC_VLM_PAUSE )
 643                         sprintf( psz, "control %s pause", name );
 644                     else if( StrToMacroType( control ) == MVLC_VLM_STOP )
 645                         sprintf( psz, "control %s stop", name );
 646                     else if( StrToMacroType( control ) == MVLC_VLM_SEEK )
 647                     {
 648                         char percent[20];
 649                         ExtractURIValue( p_request, "percent", percent, 512 );
 650                         sprintf( psz, "control %s seek %s", name, percent );
 651                     }
 652
 653                     vlm_ExecuteCommand( p_intf->p_sys->p_vlm, psz, &vlm_answer );
 654                     /* FIXME do a vlm_answer -> var stack conversion */
 655                     vlm_MessageDelete( vlm_answer );
 656                     break;
 657                 }
 658                 case MVLC_VLM_LOAD:
 659                 case MVLC_VLM_SAVE:
 660                 {
 661                     vlm_message_t *vlm_answer;
 662                     char file[512];
 663                     char psz[512];
 664
 665                     if( p_intf->p_sys->p_vlm == NULL )
 666                         p_intf->p_sys->p_vlm = vlm_New( p_intf );
 667
 668                     if( p_intf->p_sys->p_vlm == NULL ) break;
 669
 670                     ExtractURIValue( p_request, "file", file, 512 );
 671                     decode_URI( file );
 672
 673                     if( StrToMacroType( control ) == MVLC_VLM_LOAD )
 674                         sprintf( psz, "load %s", file );
 675                     else
 676                         sprintf( psz, "save %s", file );
 677
 678                     vlm_ExecuteCommand( p_intf->p_sys->p_vlm, psz, &vlm_answer );
 679                     /* FIXME do a vlm_answer -> var stack conversion */
 680                     vlm_MessageDelete( vlm_answer );
 681                     break;
 682                 }
 683 #endif /* ENABLE_VLM */
 684                 default:
 685                     if( *control )
 686                     {
 687                         PRINTS( "<!-- control param(%s) unsupported -->", control );
 688                     }
 689                     break;
 690             }
 691             break;
 692
 693         case MVLC_SET:
 694         {
 695             char    value[512];
 696             int     i;
 697             float   f;
 698
 699             if( i_request <= 0 ||
 700                 *m->param1  == '\0' ||
 701                 strstr( p_request, m->param1 ) == NULL )
 702             {
 703                 break;
 704             }
 705             ExtractURIValue( p_request, m->param1,  value, 512 );
 706             decode_URI( value );
 707
 708             switch( StrToMacroType( m->param2 ) )
 709             {
 710                 case MVLC_INT:
 711                     i = atoi( value );
 712                     config_PutInt( p_intf, m->param1, i );
 713                     break;
 714                 case MVLC_FLOAT:
 715                     f = atof( value );
 716                     config_PutFloat( p_intf, m->param1, f );
 717                     break;
 718                 case MVLC_STRING:
 719                     config_PutPsz( p_intf, m->param1, value );
 720                     break;
 721                 default:
 722                     PRINTS( "<!-- invalid type(%s) in set -->", m->param2 )
 723             }
 724             break;
 725         }
 726         case MVLC_GET:
 727         {
 728             char    value[512];
 729             int     i;
 730             float   f;
 731             char    *psz;
 732             lldiv_t div;
 733
 734             if( *m->param1  == '\0' )
 735             {
 736                 break;
 737             }
 738
 739             switch( StrToMacroType( m->param2 ) )
 740             {
 741                 case MVLC_INT:
 742                     i = config_GetInt( p_intf, m->param1 );
 743                     sprintf( value, "%d", i );
 744                     break;
 745                 case MVLC_FLOAT:
 746                     f = config_GetFloat( p_intf, m->param1 );
 747                     div = lldiv( f * 1000000 , 1000000 );
 748                     sprintf( value, "%lld.%06u", div.quot,
 749                             (unsigned int)div.rem );
 750                     break;
 751                 case MVLC_STRING:
 752                     psz = config_GetPsz( p_intf, m->param1 );
 753                     if( psz != NULL )
 754                     {
 755                         strlcpy( value, psz,sizeof( value ) );
 756                         free( psz );
 757                     }
 758                     else
 759                         *value = '\0';
 760                     msg_Dbg( p_intf, "%d: value = \"%s\"", __LINE__, value );
 761                     break;
 762                 default:
 763                     snprintf( value, sizeof( value ),
 764                               "invalid type(%s) in set", m->param2 );
 765                     break;
 766             }
 767             PRINTS( "%s", value );
 768             break;
 769         }
 770         case MVLC_VALUE:
 771         {
 772             char *s;
 773             const char *v;
 774
 775             if( m->param1 )
 776             {
 777                 EvaluateRPN( p_intf, p_args->vars, &p_args->stack, m->param1 );
 778                 s = SSPop( &p_args->stack );
 779                 v = mvar_GetValue( p_args->vars, s );
 780             }
 781             else
 782             {
 783                 v = s = SSPop( &p_args->stack );
 784             }
 785
 786             PRINTS( "%s", v );
 787             free( s );
 788             break;
 789         }
 790         case MVLC_RPN:
 791             EvaluateRPN( p_intf, p_args->vars, &p_args->stack, m->param1 );
 792             break;
 793
 794         /* Useful to learn stack management */
 795         case MVLC_STACK:
 796         {
 797             int i;
 798             msg_Dbg( p_intf, "stack" );
 799             for (i=0;i<(&p_args->stack)->i_stack;i++)
 800                 msg_Dbg( p_intf, "%d -> %s", i, (&p_args->stack)->stack[i] );
 801             break;
 802         }
 803
 804         case MVLC_UNKNOWN:
 805         default:
 806             PRINTS( "<!-- invalid macro id=`%s' -->", m->id );
 807             msg_Dbg( p_intf, "invalid macro id=`%s'", m->id );
 808             break;
 809     }
 810 #undef PRINTS
 811 #undef PRINT
 812 #undef ALLOC
 813 }
 814
 815 static
 816 char *MacroSearch( char *src, char *end, int i_mvlc, bool b_after )
 817 {
 818     int     i_id;
 819     int     i_level = 0;
 820
 821     while( src < end )
 822     {
 823         if( src + 4 < end  && !strncmp( (char *)src, "<vlc", 4 ) )
 824         {
 825             int i_skip;
 826             macro_t m;
 827
 828             i_skip = MacroParse( &m, src );
 829
 830             i_id = StrToMacroType( m.id );
 831
 832             switch( i_id )
 833             {
 834                 case MVLC_IF:
 835                 case MVLC_FOREACH:
 836                     i_level++;
 837                     break;
 838                 case MVLC_END:
 839                     i_level--;
 840                     break;
 841                 default:
 842                     break;
 843             }
 844
 845             MacroClean( &m );
 846
 847             if( ( i_mvlc == MVLC_END && i_level == -1 ) ||
 848                 ( i_mvlc != MVLC_END && i_level == 0 && i_mvlc == i_id ) )
 849             {
 850                 return src + ( b_after ? i_skip : 0 );
 851             }
 852             else if( i_level < 0 )
 853             {
 854                 return NULL;
 855             }
 856
 857             src += i_skip;
 858         }
 859         else
 860         {
 861             src++;
 862         }
 863     }
 864
 865     return NULL;
 866 }
 867
 868 void Execute( httpd_file_sys_t *p_args,
 869                      char *p_request, int i_request,
 870                      char **pp_data, int *pi_data,
 871                      char **pp_dst,
 872                      char *_src, char *_end )
 873 {
 874     intf_thread_t  *p_intf = p_args->p_intf;
 875
 876     char *src, *dup, *end;
 877     char *dst = *pp_dst;
 878
 879     src = dup = malloc( _end - _src + 1 );
 880     end = src +( _end - _src );
 881
 882     memcpy( src, _src, _end - _src );
 883     *end = '\0';
 884
 885     /* we parse searching <vlc */
 886     while( src < end )
 887     {
 888         char *p;
 889         int i_copy;
 890
 891         p = (char *)strstr( (char *)src, "<vlc" );
 892         if( p < end && p == src )
 893         {
 894             macro_t m;
 895
 896             src += MacroParse( &m, src );
 897
 898             //msg_Dbg( p_intf, "macro_id=%s", m.id );
 899
 900             switch( StrToMacroType( m.id ) )
 901             {
 902                 case MVLC_INCLUDE:
 903                 {
 904                     FILE *f;
 905                     int  i_buffer;
 906                     char *p_buffer;
 907                     char psz_file[MAX_DIR_SIZE];
 908                     char *p;
 909                     char sep;
 910
 911 #if defined( WIN32 )
 912                     sep = '\\';
 913 #else
 914                     sep = '/';
 915 #endif
 916
 917                     if( m.param1[0] != sep )
 918                     {
 919                         strcpy( psz_file, p_args->file );
 920                         p = strrchr( psz_file, sep );
 921                         if( p != NULL )
 922                             strcpy( p + 1, m.param1 );
 923                         else
 924                             strcpy( psz_file, m.param1 );
 925                     }
 926                     else
 927                     {
 928                         strcpy( psz_file, m.param1 );
 929                     }
 930
 931                     /* We hereby assume that psz_file is in the
 932                      * local character encoding */
 933                     if( ( f = fopen( psz_file, "r" ) ) == NULL )
 934                     {
 935                         msg_Warn( p_args->p_intf,
 936                                   "unable to include file %s (%m)",
 937                                   psz_file );
 938                         break;
 939                     }
 940
 941                     /* first we load in a temporary buffer */
 942                     FileLoad( f, &p_buffer, &i_buffer );
 943
 944                     /* we parse executing all  <vlc /> macros */
 945                     Execute( p_args, p_request, i_request, pp_data, pi_data,
 946                              &dst, &p_buffer[0], &p_buffer[i_buffer] );
 947                     free( p_buffer );
 948                     fclose(f);
 949                     break;
 950                 }
 951                 case MVLC_IF:
 952                 {
 953                     bool i_test;
 954                     char    *endif;
 955
 956                     EvaluateRPN( p_intf, p_args->vars, &p_args->stack, m.param1 );
 957                     if( SSPopN( &p_args->stack, p_args->vars ) )
 958                     {
 959                         i_test = 1;
 960                     }
 961                     else
 962                     {
 963                         i_test = 0;
 964                     }
 965                     endif = MacroSearch( src, end, MVLC_END, true );
 966
 967                     if( i_test == 0 )
 968                     {
 969                         char *start = MacroSearch( src, endif, MVLC_ELSE, true );
 970
 971                         if( start )
 972                         {
 973                             char *stop  = MacroSearch( start, endif, MVLC_END, false );
 974                             if( stop )
 975                             {
 976                                 Execute( p_args, p_request, i_request,
 977                                          pp_data, pi_data, &dst, start, stop );
 978                             }
 979                         }
 980                     }
 981                     else if( i_test == 1 )
 982                     {
 983                         char *stop;
 984                         if( ( stop = MacroSearch( src, endif, MVLC_ELSE, false ) ) == NULL )
 985                         {
 986                             stop = MacroSearch( src, endif, MVLC_END, false );
 987                         }
 988                         if( stop )
 989                         {
 990                             Execute( p_args, p_request, i_request,
 991                                      pp_data, pi_data, &dst, src, stop );
 992                         }
 993                     }
 994
 995                     src = endif;
 996                     break;
 997                 }
 998                 case MVLC_FOREACH:
 999                 {
1000                     char *endfor = MacroSearch( src, end, MVLC_END, true );
1001                     char *start = src;
1002                     char *stop = MacroSearch( src, end, MVLC_END, false );
1003
1004                     if( stop )
1005                     {
1006                         mvar_t *index;
1007                         int    i_idx;
1008                         mvar_t *v;
1009                         if( !strcmp( m.param2, "integer" ) )
1010                         {
1011                             char *arg = SSPop( &p_args->stack );
1012                             index = mvar_IntegerSetNew( m.param1, arg );
1013                             free( arg );
1014                         }
1015                         else if( !strcmp( m.param2, "directory" ) )
1016                         {
1017                             char *arg = SSPop( &p_args->stack );
1018                             index = mvar_FileSetNew( p_intf, m.param1, arg );
1019                             free( arg );
1020                         }
1021                         else if( !strcmp( m.param2, "object" ) )
1022                         {
1023                             char *arg = SSPop( &p_args->stack );
1024                             index = mvar_ObjectSetNew( p_intf, m.param1, arg );
1025                             free( arg );
1026                         }
1027                         else if( !strcmp( m.param2, "playlist" ) )
1028                         {
1029                             index = mvar_PlaylistSetNew( p_intf, m.param1,
1030                                                     p_intf->p_sys->p_playlist );
1031                         }
1032                         else if( !strcmp( m.param2, "information" ) )
1033                         {
1034                             index = mvar_InfoSetNew( m.param1,
1035                                                      p_intf->p_sys->p_input );
1036                         }
1037                         else if( !strcmp( m.param2, "program" )
1038                                   || !strcmp( m.param2, "title" )
1039                                   || !strcmp( m.param2, "chapter" )
1040                                   || !strcmp( m.param2, "audio-es" )
1041                                   || !strcmp( m.param2, "video-es" )
1042                                   || !strcmp( m.param2, "spu-es" ) )
1043                         {
1044                             index = mvar_InputVarSetNew( p_intf, m.param1,
1045                                                          p_intf->p_sys->p_input,
1046                                                          m.param2 );
1047                         }
1048 #ifdef ENABLE_VLM
1049                         else if( !strcmp( m.param2, "vlm" ) )
1050                         {
1051                             if( p_intf->p_sys->p_vlm == NULL )
1052                                 p_intf->p_sys->p_vlm = vlm_New( p_intf );
1053                             index = mvar_VlmSetNew( m.param1, p_intf->p_sys->p_vlm );
1054                         }
1055 #endif
1056 #if 0
1057                         else if( !strcmp( m.param2, "hosts" ) )
1058                         {
1059                             index = mvar_HttpdInfoSetNew( m.param1, p_intf->p_sys->p_httpd, HTTPD_GET_HOSTS );
1060                         }
1061                         else if( !strcmp( m.param2, "urls" ) )
1062                         {
1063                             index = mvar_HttpdInfoSetNew( m.param1, p_intf->p_sys->p_httpd, HTTPD_GET_URLS );
1064                         }
1065                         else if( !strcmp( m.param2, "connections" ) )
1066                         {
1067                             index = mvar_HttpdInfoSetNew(m.param1, p_intf->p_sys->p_httpd, HTTPD_GET_CONNECTIONS);
1068                         }
1069 #endif
1070                         else if( ( v = mvar_GetVar( p_args->vars, m.param2 ) ) )
1071                         {
1072                             index = mvar_Duplicate( v );
1073                         }
1074                         else
1075                         {
1076                             msg_Dbg( p_intf, "invalid index constructor (%s)", m.param2 );
1077                             src = endfor;
1078                             break;
1079                         }
1080
1081                         for( i_idx = 0; i_idx < index->i_field; i_idx++ )
1082                         {
1083                             mvar_t *f = mvar_Duplicate( index->field[i_idx] );
1084
1085                             //msg_Dbg( p_intf, "foreach field[%d] name=%s value=%s", i_idx, f->name, f->value );
1086
1087                             free( f->name );
1088                             f->name = strdup( m.param1 );
1089
1090
1091                             mvar_PushVar( p_args->vars, f );
1092                             Execute( p_args, p_request, i_request,
1093                                      pp_data, pi_data, &dst, start, stop );
1094                             mvar_RemoveVar( p_args->vars, f );
1095
1096                             mvar_Delete( f );
1097                         }
1098                         mvar_Delete( index );
1099
1100                         src = endfor;
1101                     }
1102                     break;
1103                 }
1104                 default:
1105                     MacroDo( p_args, &m, p_request, i_request,
1106                              pp_data, pi_data, &dst );
1107                     break;
1108             }
1109
1110             MacroClean( &m );
1111             continue;
1112         }
1113
1114         i_copy =   ( (p == NULL || p > end ) ? end : p  ) - src;
1115         if( i_copy > 0 )
1116         {
1117             int i_index = dst - *pp_data;
1118
1119             *pi_data += i_copy;
1120             *pp_data = realloc( *pp_data, *pi_data );
1121             dst = (*pp_data) + i_index;
1122
1123             memcpy( dst, src, i_copy );
1124             dst += i_copy;
1125             src += i_copy;
1126         }
1127     }
1128
1129     *pp_dst = dst;
1130     free( dup );
1131 }