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