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

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