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     playlist_t     *p_playlist = p_sys->p_playlist;
 147     char control[512];
 148
 149 #define ALLOC( l ) \
 150     {               \
 151         int __i__ = *pp_dst - *pp_data; \
 152         *pi_data += (l);                  \
 153         *pp_data = xrealloc( *pp_data, *pi_data );   \
 154         *pp_dst = (*pp_data) + __i__;   \
 155     }
 156 #define PRINT( str ) \
 157     ALLOC( strlen( str ) + 1 ); \
 158     *pp_dst += sprintf( *pp_dst, "%s", str );
 159
 160 #define PRINTS( str, s ) \
 161     ALLOC( strlen( str ) + strlen( s ) + 1 ); \
 162     { \
 163         char * psz_cur = *pp_dst; \
 164         *pp_dst += sprintf( *pp_dst, str, s ); \
 165         while( psz_cur && *psz_cur ) \
 166         {  \
 167             /* Prevent script injection */ \
 168             if( *psz_cur == '<' ) *psz_cur = '*'; \
 169             if( *psz_cur == '>' ) *psz_cur = '*'; \
 170             psz_cur++ ; \
 171         } \
 172     }
 173
 174     switch( StrToMacroType( m->id ) )
 175     {
 176         case MVLC_CONTROL:
 177             if( i_request <= 0 )
 178             {
 179                 break;
 180             }
 181             ExtractURIValue( p_request, "control", control, 512 );
 182             if( *m->param1 && !strstr( m->param1, control ) )
 183             {
 184                 msg_Warn( p_intf, "unauthorized control=%s", control );
 185                 break;
 186             }
 187             switch( StrToMacroType( control ) )
 188             {
 189                 case MVLC_PLAY:
 190                 {
 191                     int i_item;
 192                     char item[512];
 193
 194                     ExtractURIValue( p_request, "item", item, 512 );
 195                     i_item = atoi( item );
 196                     /* id = 0 : simply ask playlist to play */
 197                     if( i_item == 0 )
 198                     {
 199                         playlist_Play( p_sys->p_playlist );
 200                         msg_Dbg( p_intf, "requested playlist play" );
 201                         break;
 202                     }
 203                     playlist_Control( p_sys->p_playlist, PLAYLIST_VIEWPLAY,
 204                                       pl_Unlocked, 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                                       pl_Unlocked );
 213                     msg_Dbg( p_intf, "requested playlist stop" );
 214                     break;
 215                 case MVLC_PAUSE:
 216                     playlist_Control( p_sys->p_playlist, PLAYLIST_PAUSE,
 217                                       pl_Unlocked );
 218                     msg_Dbg( p_intf, "requested playlist pause" );
 219                     break;
 220                 case MVLC_NEXT:
 221                     playlist_Control( p_sys->p_playlist, PLAYLIST_SKIP,
 222                                       pl_Unlocked, 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                                       pl_Unlocked, -1 );
 228                     msg_Dbg( p_intf, "requested playlist previous" );
 229                     break;
 230                 case MVLC_FULLSCREEN:
 231                     if( p_sys->p_input )
 232                     {
 233                         bool fs = var_ToggleBool( p_sys->p_playlist,
 234                                                   "fullscreen" );
 235                         vout_thread_t *p_vout = input_GetVout( p_sys->p_input );
 236                         if( p_vout )
 237                         {
 238                             var_SetBool( p_vout, "fullscreen", fs );
 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_sys->p_playlist, &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_sys->p_playlist, AOUT_VOLUME_MAX );
 268                             msg_Dbg( p_intf, "requested volume set: max" );
 269                         }
 270                         else
 271                         {
 272                             aout_VolumeSet( p_sys->p_playlist, (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_sys->p_playlist, AOUT_VOLUME_MIN );
 282                             msg_Dbg( p_intf, "requested volume set: min" );
 283                         }
 284                         else
 285                         {
 286                             aout_VolumeSet( p_sys->p_playlist, (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_sys->p_playlist, (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_sys->p_playlist, 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, pl_Unlocked) == 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 = xrealloc( p_items,
 369                                         (i_nb_items + 1) * 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                         PL_LOCK;
 377                         playlist_item_t *p_item;
 378
 379                         msg_Dbg( p_intf, "requested playlist delete: %d",
 380                                  p_items[i] );
 381                         p_item = playlist_ItemGetById( p_sys->p_playlist,
 382                                                        p_items[i] );
 383                         if( p_item )
 384                             playlist_DeleteFromInput( p_sys->p_playlist,
 385                                                       p_item->p_input,
 386                                                       false );
 387                         PL_UNLOCK;
 388                     }
 389
 390                     free( p_items );
 391                     break;
 392                 }
 393                 case MVLC_KEEP:
 394                 {
 395                     int *p_items = NULL;
 396                     size_t i_nb_items = 0, i;
 397                     char item[512];
 398                     const char *p_parser = p_request;
 399
 400                     /* Get the list of items to keep */
 401                     while( (p_parser =
 402                        ExtractURIValue( p_parser, "item", item, 512 )) )
 403                     {
 404                         if( !*item ) continue;
 405
 406                         int i_item = atoi( item );
 407                         p_items = xrealloc( p_items,
 408                                         (i_nb_items + 1) * sizeof(*p_items) );
 409                         p_items[i_nb_items] = i_item;
 410                         i_nb_items++;
 411                     }
 412
 413                     PL_LOCK;
 414                     size_t size = p_sys->p_playlist->items.i_size;
 415                     for( i = 0; i < size; i++ )
 416                     {
 417                         size_t j;
 418
 419                         /* Check if the item is in the keep list */
 420                         for( j = 0 ; j < i_nb_items ; j++ )
 421                         {
 422                             if( p_items[j] ==
 423                                 ARRAY_VAL(p_sys->p_playlist->items,i)->i_id)
 424                                 break;
 425                         }
 426                         if( j == i_nb_items )
 427                         {
 428                             msg_Dbg( p_intf, "requested playlist delete: %d",
 429                                    p_sys->p_playlist->items.p_elems[i]->i_id );
 430                             playlist_DeleteFromInput( p_sys->p_playlist,
 431                                 p_sys->p_playlist->items.p_elems[i]->p_input,
 432                                                       false );
 433                         }
 434                     }
 435                     PL_UNLOCK;
 436
 437                     free( p_items );
 438                     break;
 439                 }
 440                 case MVLC_EMPTY:
 441                 {
 442                     playlist_Clear( p_sys->p_playlist, pl_Unlocked );
 443                     msg_Dbg( p_intf, "requested playlist empty" );
 444                     break;
 445                 }
 446                 case MVLC_SORT:
 447                 {
 448                     char type[12];
 449                     char order[2];
 450                     char item[512];
 451                     int i_order;
 452                     int i_item;
 453
 454                     ExtractURIValue( p_request, "type", type, 12 );
 455                     ExtractURIValue( p_request, "order", order, 2 );
 456                     ExtractURIValue( p_request, "item", item, 512 );
 457                     i_item = atoi( item );
 458
 459                     if( order[0] == '0' ) i_order = ORDER_NORMAL;
 460                     else i_order = ORDER_REVERSE;
 461
 462                     if( !strcmp( type , "title" ) )
 463                     {
 464                         PL_LOCK;
 465                         playlist_RecursiveNodeSort( p_sys->p_playlist,
 466                                                     /* Ugly hack,but not worse than before ... */
 467                                                     p_sys->p_playlist->p_root_onelevel,
 468                                                     SORT_TITLE_NODES_FIRST,
 469                                                     ( i_order == 0 ) ? ORDER_NORMAL : ORDER_REVERSE );
 470                         PL_UNLOCK;
 471                         msg_Dbg( p_intf, "requested playlist sort by title (%d)" , i_order );
 472                     }
 473                     else if( !strcmp( type , "author" ) )
 474                     {
 475                         PL_LOCK;
 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_ARTIST,
 479                                                     ( i_order == 0 ) ? ORDER_NORMAL : ORDER_REVERSE );
 480                         PL_UNLOCK;
 481                         msg_Dbg( p_intf, "requested playlist sort by author (%d)" , i_order );
 482                     }
 483                     else if( !strcmp( type , "shuffle" ) )
 484                     {
 485                         PL_LOCK;
 486                         playlist_RecursiveNodeSort( p_sys->p_playlist, /*playlist_ItemGetById( p_sys->p_playlist, i_item ),*/
 487                                                     p_sys->p_playlist->p_root_onelevel,
 488                                                     SORT_RANDOM,
 489                                                     ( i_order == 0 ) ? ORDER_NORMAL : ORDER_REVERSE );
 490                         PL_UNLOCK;
 491                         msg_Dbg( p_intf, "requested playlist shuffle");
 492                     }
 493
 494                     break;
 495                 }
 496                 case MVLC_MOVE:
 497                 {
 498                     char psz_pos[6];
 499                     char psz_newpos[6];
 500                     int i_pos;
 501                     int i_newpos;
 502                     ExtractURIValue( p_request, "psz_pos", psz_pos, 6 );
 503                     ExtractURIValue( p_request, "psz_newpos", psz_newpos, 6 );
 504                     i_pos = atoi( psz_pos );
 505                     i_newpos = atoi( psz_newpos );
 506                     /* FIXME FIXME TODO TODO XXX XXX
 507                     ( duplicate from rpn.c )
 508                     if ( i_pos < i_newpos )
 509                     {
 510                         playlist_Move( p_sys->p_playlist, i_pos, i_newpos + 1 );
 511                     }
 512                     else
 513                     {
 514                         playlist_Move( p_sys->p_playlist, i_pos, i_newpos );
 515                     }
 516                     msg_Dbg( p_intf, "requested move playlist item %d to %d", i_pos, i_newpos);
 517                     FIXME FIXME TODO TODO XXX XXX */
 518                     break;
 519                 }
 520
 521                 /* admin function */
 522                 case MVLC_CLOSE:
 523                 {
 524                     char id[512];
 525                     ExtractURIValue( p_request, "id", id, 512 );
 526                     msg_Dbg( p_intf, "requested close id=%s", id );
 527 #if 0
 528                     if( p_sys->p_httpd->pf_control( p_sys->p_httpd, HTTPD_SET_CLOSE, id, NULL ) )
 529                     {
 530                         msg_Warn( p_intf, "close failed for id=%s", id );
 531                     }
 532 #endif
 533                     break;
 534                 }
 535                 case MVLC_SHUTDOWN:
 536                 {
 537                     msg_Dbg( p_intf, "requested shutdown" );
 538                     libvlc_Quit( p_intf->p_libvlc );
 539                     break;
 540                 }
 541 #ifdef ENABLE_VLM
 542                 /* vlm */
 543                 case MVLC_VLM_NEW:
 544                 case MVLC_VLM_SETUP:
 545                 {
 546                     static const char vlm_properties[][9] =
 547                     {
 548                         /* no args */
 549                         "enabled", "disabled", "loop", "unloop",
 550                         /* args required */
 551                         "input", "output", "option", "date", "period",
 552                         "repeat", "append", "",
 553                     };
 554                     vlm_message_t *vlm_answer;
 555                     char name[512];
 556                     char *psz = xmalloc( strlen( p_request ) + 1000 );
 557                     char *p = psz;
 558                     char *vlm_error;
 559                     int i;
 560
 561                     if( p_intf->p_sys->p_vlm == NULL )
 562                         p_intf->p_sys->p_vlm = vlm_New( p_intf );
 563
 564                     if( p_intf->p_sys->p_vlm == NULL )
 565                     {
 566                         free( psz );
 567                         break;
 568                     }
 569
 570                     ExtractURIValue( p_request, "name", name, 512 );
 571                     if( StrToMacroType( control ) == MVLC_VLM_NEW )
 572                     {
 573                         char type[20];
 574                         ExtractURIValue( p_request, "type", type, 20 );
 575                         p += sprintf( psz, "new %s %s", name, type );
 576                     }
 577                     else
 578                     {
 579                         p += sprintf( psz, "setup %s", name );
 580                     }
 581                     /* Parse the request */
 582                     for( i = 0; vlm_properties[i][0]; i++ )
 583                     {
 584                         char val[512];
 585                         ExtractURIValue( p_request,
 586                                                vlm_properties[i], val, 512 );
 587                         decode_URI( val );
 588                         if( strlen( val ) > 0 && i >= 4 )
 589                         {
 590                             p += sprintf( p, " %s %s", vlm_properties[i], val );
 591                         }
 592                         else if( TestURIParam( p_request, vlm_properties[i] ) && i < 4 )
 593                         {
 594                             p += sprintf( p, " %s", vlm_properties[i] );
 595                         }
 596                     }
 597                     vlm_ExecuteCommand( p_intf->p_sys->p_vlm, psz, &vlm_answer );
 598                     if( vlm_answer->psz_value == NULL ) /* there is no error */
 599                     {
 600                         vlm_error = strdup( "" );
 601                     }
 602                     else
 603                     {
 604                         if( asprintf( &vlm_error , "%s : %s" ,
 605                                       vlm_answer->psz_name,
 606                                       vlm_answer->psz_value ) == -1 )
 607                             vlm_error = NULL;
 608                     }
 609
 610                     mvar_AppendNewVar( p_args->vars, "vlm_error", vlm_error );
 611
 612                     vlm_MessageDelete( vlm_answer );
 613                     free( vlm_error );
 614                     free( psz );
 615                     break;
 616                 }
 617
 618                 case MVLC_VLM_DEL:
 619                 {
 620                     vlm_message_t *vlm_answer;
 621                     char name[512];
 622                     char psz[512+10];
 623                     if( p_intf->p_sys->p_vlm == NULL )
 624                         p_intf->p_sys->p_vlm = vlm_New( p_intf );
 625
 626                     if( p_intf->p_sys->p_vlm == NULL ) break;
 627
 628                     ExtractURIValue( p_request, "name", name, 512 );
 629                     sprintf( psz, "del %s", name );
 630
 631                     vlm_ExecuteCommand( p_intf->p_sys->p_vlm, psz, &vlm_answer );
 632                     /* FIXME do a vlm_answer -> var stack conversion */
 633                     vlm_MessageDelete( vlm_answer );
 634                     break;
 635                 }
 636
 637                 case MVLC_VLM_PLAY:
 638                 case MVLC_VLM_PAUSE:
 639                 case MVLC_VLM_STOP:
 640                 case MVLC_VLM_SEEK:
 641                 {
 642                     vlm_message_t *vlm_answer;
 643                     char name[512];
 644                     char psz[512+10];
 645                     if( p_intf->p_sys->p_vlm == NULL )
 646                         p_intf->p_sys->p_vlm = vlm_New( p_intf );
 647
 648                     if( p_intf->p_sys->p_vlm == NULL ) break;
 649
 650                     ExtractURIValue( p_request, "name", name, 512 );
 651                     if( StrToMacroType( control ) == MVLC_VLM_PLAY )
 652                         sprintf( psz, "control %s play", name );
 653                     else if( StrToMacroType( control ) == MVLC_VLM_PAUSE )
 654                         sprintf( psz, "control %s pause", name );
 655                     else if( StrToMacroType( control ) == MVLC_VLM_STOP )
 656                         sprintf( psz, "control %s stop", name );
 657                     else if( StrToMacroType( control ) == MVLC_VLM_SEEK )
 658                     {
 659                         char percent[20];
 660                         ExtractURIValue( p_request, "percent", percent, 512 );
 661                         sprintf( psz, "control %s seek %s", name, percent );
 662                     }
 663
 664                     vlm_ExecuteCommand( p_intf->p_sys->p_vlm, psz, &vlm_answer );
 665                     /* FIXME do a vlm_answer -> var stack conversion */
 666                     vlm_MessageDelete( vlm_answer );
 667                     break;
 668                 }
 669                 case MVLC_VLM_LOAD:
 670                 case MVLC_VLM_SAVE:
 671                 {
 672                     vlm_message_t *vlm_answer;
 673                     char file[512];
 674                     char psz[512];
 675
 676                     if( p_intf->p_sys->p_vlm == NULL )
 677                         p_intf->p_sys->p_vlm = vlm_New( p_intf );
 678
 679                     if( p_intf->p_sys->p_vlm == NULL ) break;
 680
 681                     ExtractURIValue( p_request, "file", file, 512 );
 682                     decode_URI( file );
 683
 684                     if( StrToMacroType( control ) == MVLC_VLM_LOAD )
 685                         sprintf( psz, "load %s", file );
 686                     else
 687                         sprintf( psz, "save %s", file );
 688
 689                     vlm_ExecuteCommand( p_intf->p_sys->p_vlm, psz, &vlm_answer );
 690                     /* FIXME do a vlm_answer -> var stack conversion */
 691                     vlm_MessageDelete( vlm_answer );
 692                     break;
 693                 }
 694 #endif /* ENABLE_VLM */
 695                 default:
 696                     if( *control )
 697                     {
 698                         PRINTS( "<!-- control param(%s) unsupported -->", control );
 699                     }
 700                     break;
 701             }
 702             break;
 703
 704         case MVLC_SET:
 705         {
 706             char    value[512];
 707             int     i;
 708             float   f;
 709
 710             if( i_request <= 0 ||
 711                 *m->param1  == '\0' ||
 712                 strstr( p_request, m->param1 ) == NULL )
 713             {
 714                 break;
 715             }
 716             ExtractURIValue( p_request, m->param1,  value, 512 );
 717             decode_URI( value );
 718
 719             switch( StrToMacroType( m->param2 ) )
 720             {
 721                 case MVLC_INT:
 722                     i = atoi( value );
 723                     config_PutInt( p_intf, m->param1, i );
 724                     break;
 725                 case MVLC_FLOAT:
 726                     f = atof( value );
 727                     config_PutFloat( p_intf, m->param1, f );
 728                     break;
 729                 case MVLC_STRING:
 730                     config_PutPsz( p_intf, m->param1, value );
 731                     break;
 732                 default:
 733                     PRINTS( "<!-- invalid type(%s) in set -->", m->param2 )
 734             }
 735             break;
 736         }
 737         case MVLC_GET:
 738         {
 739             char    value[512];
 740             int     i;
 741             float   f;
 742             char    *psz;
 743             lldiv_t div;
 744
 745             if( *m->param1  == '\0' )
 746             {
 747                 break;
 748             }
 749
 750             switch( StrToMacroType( m->param2 ) )
 751             {
 752                 case MVLC_INT:
 753                     i = config_GetInt( p_intf, m->param1 );
 754                     sprintf( value, "%d", i );
 755                     break;
 756                 case MVLC_FLOAT:
 757                     f = config_GetFloat( p_intf, m->param1 );
 758                     div = lldiv( f * 1000000 , 1000000 );
 759                     sprintf( value, "%lld.%06u", div.quot,
 760                             (unsigned int)div.rem );
 761                     break;
 762                 case MVLC_STRING:
 763                     psz = config_GetPsz( p_intf, m->param1 );
 764                     if( psz != NULL )
 765                     {
 766                         strlcpy( value, psz,sizeof( value ) );
 767                         free( psz );
 768                     }
 769                     else
 770                         *value = '\0';
 771                     msg_Dbg( p_intf, "%d: value = \"%s\"", __LINE__, value );
 772                     break;
 773                 default:
 774                     snprintf( value, sizeof( value ),
 775                               "invalid type(%s) in set", m->param2 );
 776                     break;
 777             }
 778             PRINTS( "%s", value );
 779             break;
 780         }
 781         case MVLC_VALUE:
 782         {
 783             char *s;
 784             const char *v;
 785
 786             if( m->param1 )
 787             {
 788                 EvaluateRPN( p_intf, p_args->vars, &p_args->stack, m->param1 );
 789                 s = SSPop( &p_args->stack );
 790                 v = mvar_GetValue( p_args->vars, s );
 791             }
 792             else
 793             {
 794                 v = s = SSPop( &p_args->stack );
 795             }
 796
 797             PRINTS( "%s", v );
 798             free( s );
 799             break;
 800         }
 801         case MVLC_RPN:
 802             EvaluateRPN( p_intf, p_args->vars, &p_args->stack, m->param1 );
 803             break;
 804
 805         /* Useful to learn stack management */
 806         case MVLC_STACK:
 807         {
 808             int i;
 809             msg_Dbg( p_intf, "stack" );
 810             for (i=0;i<(&p_args->stack)->i_stack;i++)
 811                 msg_Dbg( p_intf, "%d -> %s", i, (&p_args->stack)->stack[i] );
 812             break;
 813         }
 814
 815         case MVLC_UNKNOWN:
 816         default:
 817             PRINTS( "<!-- invalid macro id=`%s' -->", m->id );
 818             msg_Dbg( p_intf, "invalid macro id=`%s'", m->id );
 819             break;
 820     }
 821 #undef PRINTS
 822 #undef PRINT
 823 #undef ALLOC
 824 }
 825
 826 static
 827 char *MacroSearch( char *src, char *end, int i_mvlc, bool b_after )
 828 {
 829     int     i_id;
 830     int     i_level = 0;
 831
 832     while( src < end )
 833     {
 834         if( src + 4 < end  && !strncmp( (char *)src, "<vlc", 4 ) )
 835         {
 836             int i_skip;
 837             macro_t m;
 838
 839             i_skip = MacroParse( &m, src );
 840
 841             i_id = StrToMacroType( m.id );
 842
 843             switch( i_id )
 844             {
 845                 case MVLC_IF:
 846                 case MVLC_FOREACH:
 847                     i_level++;
 848                     break;
 849                 case MVLC_END:
 850                     i_level--;
 851                     break;
 852                 default:
 853                     break;
 854             }
 855
 856             MacroClean( &m );
 857
 858             if( ( i_mvlc == MVLC_END && i_level == -1 ) ||
 859                 ( i_mvlc != MVLC_END && i_level == 0 && i_mvlc == i_id ) )
 860             {
 861                 return src + ( b_after ? i_skip : 0 );
 862             }
 863             else if( i_level < 0 )
 864             {
 865                 return NULL;
 866             }
 867
 868             src += i_skip;
 869         }
 870         else
 871         {
 872             src++;
 873         }
 874     }
 875
 876     return NULL;
 877 }
 878
 879 void Execute( httpd_file_sys_t *p_args,
 880                      char *p_request, int i_request,
 881                      char **pp_data, int *pi_data,
 882                      char **pp_dst,
 883                      const char *_src, const char *_end )
 884 {
 885     intf_thread_t  *p_intf = p_args->p_intf;
 886
 887     char *src, *dup, *end;
 888     char *dst = *pp_dst;
 889
 890     src = dup = xmalloc( _end - _src + 1 );
 891     end = src +( _end - _src );
 892
 893     memcpy( src, _src, _end - _src );
 894     *end = '\0';
 895
 896     /* we parse searching <vlc */
 897     while( src < end )
 898     {
 899         char *p;
 900         int i_copy;
 901
 902         p = strstr( src, "<vlc" );
 903         if( p < end && p == src )
 904         {
 905             macro_t m;
 906
 907             src += MacroParse( &m, src );
 908
 909             //msg_Dbg( p_intf, "macro_id=%s", m.id );
 910
 911             switch( StrToMacroType( m.id ) )
 912             {
 913                 case MVLC_INCLUDE:
 914                 {
 915                     FILE *f;
 916                     int  i_buffer;
 917                     char *p_buffer;
 918                     char psz_file[MAX_DIR_SIZE];
 919                     char *p;
 920                     char sep;
 921
 922 #if defined( WIN32 )
 923                     sep = '\\';
 924 #else
 925                     sep = '/';
 926 #endif
 927
 928                     if( m.param1[0] != sep )
 929                     {
 930                         strcpy( psz_file, p_args->file );
 931                         p = strrchr( psz_file, sep );
 932                         if( p != NULL )
 933                             strcpy( p + 1, m.param1 );
 934                         else
 935                             strcpy( psz_file, m.param1 );
 936                     }
 937                     else
 938                     {
 939                         strcpy( psz_file, m.param1 );
 940                     }
 941
 942                     /* We hereby assume that psz_file is in the
 943                      * local character encoding */
 944                     if( ( f = fopen( psz_file, "r" ) ) == NULL )
 945                     {
 946                         msg_Warn( p_args->p_intf,
 947                                   "unable to include file %s (%m)",
 948                                   psz_file );
 949                         break;
 950                     }
 951
 952                     /* first we load in a temporary buffer */
 953                     FileLoad( f, &p_buffer, &i_buffer );
 954
 955                     /* we parse executing all  <vlc /> macros */
 956                     Execute( p_args, p_request, i_request, pp_data, pi_data,
 957                              &dst, &p_buffer[0], &p_buffer[i_buffer] );
 958                     free( p_buffer );
 959                     fclose(f);
 960                     break;
 961                 }
 962                 case MVLC_IF:
 963                 {
 964                     bool i_test;
 965                     char    *endif;
 966
 967                     EvaluateRPN( p_intf, p_args->vars, &p_args->stack, m.param1 );
 968                     if( SSPopN( &p_args->stack, p_args->vars ) )
 969                     {
 970                         i_test = 1;
 971                     }
 972                     else
 973                     {
 974                         i_test = 0;
 975                     }
 976                     endif = MacroSearch( src, end, MVLC_END, true );
 977
 978                     if( i_test == 0 )
 979                     {
 980                         char *start = MacroSearch( src, endif, MVLC_ELSE, true );
 981
 982                         if( start )
 983                         {
 984                             char *stop  = MacroSearch( start, endif, MVLC_END, false );
 985                             if( stop )
 986                             {
 987                                 Execute( p_args, p_request, i_request,
 988                                          pp_data, pi_data, &dst, start, stop );
 989                             }
 990                         }
 991                     }
 992                     else if( i_test == 1 )
 993                     {
 994                         char *stop;
 995                         if( ( stop = MacroSearch( src, endif, MVLC_ELSE, false ) ) == NULL )
 996                         {
 997                             stop = MacroSearch( src, endif, MVLC_END, false );
 998                         }
 999                         if( stop )
1000                         {
1001                             Execute( p_args, p_request, i_request,
1002                                      pp_data, pi_data, &dst, src, stop );
1003                         }
1004                     }
1005
1006                     src = endif;
1007                     break;
1008                 }
1009                 case MVLC_FOREACH:
1010                 {
1011                     char *endfor = MacroSearch( src, end, MVLC_END, true );
1012                     char *start = src;
1013                     char *stop = MacroSearch( src, end, MVLC_END, false );
1014
1015                     if( stop )
1016                     {
1017                         mvar_t *index;
1018                         int    i_idx;
1019                         mvar_t *v;
1020                         if( !strcmp( m.param2, "integer" ) )
1021                         {
1022                             char *arg = SSPop( &p_args->stack );
1023                             index = mvar_IntegerSetNew( m.param1, arg );
1024                             free( arg );
1025                         }
1026                         else if( !strcmp( m.param2, "directory" ) )
1027                         {
1028                             char *arg = SSPop( &p_args->stack );
1029                             index = mvar_FileSetNew( p_intf, m.param1, arg );
1030                             free( arg );
1031                         }
1032                         else if( !strcmp( m.param2, "services" ) )
1033                         {
1034                             index = mvar_ServicesSetNew( p_intf, m.param1 );
1035                         }
1036                         else if( !strcmp( m.param2, "playlist" ) )
1037                         {
1038                             index = mvar_PlaylistSetNew( p_intf, m.param1,
1039                                                     p_intf->p_sys->p_playlist );
1040                         }
1041                         else if( !strcmp( m.param2, "information" ) )
1042                         {
1043                             index = mvar_InfoSetNew( m.param1,
1044                                                      p_intf->p_sys->p_input );
1045                         }
1046                         else if( !strcmp( m.param2, "program" )
1047                                   || !strcmp( m.param2, "title" )
1048                                   || !strcmp( m.param2, "chapter" )
1049                                   || !strcmp( m.param2, "audio-es" )
1050                                   || !strcmp( m.param2, "video-es" )
1051                                   || !strcmp( m.param2, "spu-es" ) )
1052                         {
1053                             index = mvar_InputVarSetNew( p_intf, m.param1,
1054                                                          p_intf->p_sys->p_input,
1055                                                          m.param2 );
1056                         }
1057 #ifdef ENABLE_VLM
1058                         else if( !strcmp( m.param2, "vlm" ) )
1059                         {
1060                             if( p_intf->p_sys->p_vlm == NULL )
1061                                 p_intf->p_sys->p_vlm = vlm_New( p_intf );
1062                             index = mvar_VlmSetNew( m.param1, p_intf->p_sys->p_vlm );
1063                         }
1064 #endif
1065 #if 0
1066                         else if( !strcmp( m.param2, "hosts" ) )
1067                         {
1068                             index = mvar_HttpdInfoSetNew( m.param1, p_intf->p_sys->p_httpd, HTTPD_GET_HOSTS );
1069                         }
1070                         else if( !strcmp( m.param2, "urls" ) )
1071                         {
1072                             index = mvar_HttpdInfoSetNew( m.param1, p_intf->p_sys->p_httpd, HTTPD_GET_URLS );
1073                         }
1074                         else if( !strcmp( m.param2, "connections" ) )
1075                         {
1076                             index = mvar_HttpdInfoSetNew(m.param1, p_intf->p_sys->p_httpd, HTTPD_GET_CONNECTIONS);
1077                         }
1078 #endif
1079                         else if( ( v = mvar_GetVar( p_args->vars, m.param2 ) ) )
1080                         {
1081                             index = mvar_Duplicate( v );
1082                         }
1083                         else
1084                         {
1085                             msg_Dbg( p_intf, "invalid index constructor (%s)", m.param2 );
1086                             src = endfor;
1087                             break;
1088                         }
1089
1090                         for( i_idx = 0; i_idx < index->i_field; i_idx++ )
1091                         {
1092                             mvar_t *f = mvar_Duplicate( index->field[i_idx] );
1093
1094                             //msg_Dbg( p_intf, "foreach field[%d] name=%s value=%s", i_idx, f->name, f->value );
1095
1096                             free( f->name );
1097                             f->name = strdup( m.param1 );
1098
1099
1100                             mvar_PushVar( p_args->vars, f );
1101                             Execute( p_args, p_request, i_request,
1102                                      pp_data, pi_data, &dst, start, stop );
1103                             mvar_RemoveVar( p_args->vars, f );
1104
1105                             mvar_Delete( f );
1106                         }
1107                         mvar_Delete( index );
1108
1109                         src = endfor;
1110                     }
1111                     break;
1112                 }
1113                 default:
1114                     MacroDo( p_args, &m, p_request, i_request,
1115                              pp_data, pi_data, &dst );
1116                     break;
1117             }
1118
1119             MacroClean( &m );
1120             continue;
1121         }
1122
1123         i_copy =   ( (p == NULL || p > end ) ? end : p  ) - src;
1124         if( i_copy > 0 )
1125         {
1126             int i_index = dst - *pp_data;
1127
1128             *pi_data += i_copy;
1129             *pp_data = xrealloc( *pp_data, *pi_data );
1130             dst = (*pp_data) + i_index;
1131
1132             memcpy( dst, src, i_copy );
1133             dst += i_copy;
1134             src += i_copy;
1135         }
1136     }
1137
1138     *pp_dst = dst;
1139     free( dup );
1140 }