2 * Copyright 2012 Hans Leidekker for CodeWeavers
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
28 #include "wine/debug.h"
29 #include "wbemprox_private.h"
31 WINE_DEFAULT_DEBUG_CHANNEL(wbemprox
);
33 HRESULT
create_view( const struct property
*proplist
, const WCHAR
*class,
34 const struct expr
*cond
, struct view
**ret
)
36 struct view
*view
= heap_alloc( sizeof(struct view
) );
38 if (!view
) return E_OUTOFMEMORY
;
39 view
->proplist
= proplist
;
40 view
->table
= grab_table( class );
48 void destroy_view( struct view
*view
)
51 if (view
->table
) release_table( view
->table
);
52 heap_free( view
->result
);
56 static BOOL
eval_like( const WCHAR
*lstr
, const WCHAR
*rstr
)
58 const WCHAR
*p
= lstr
, *q
= rstr
;
64 while (*q
== '%') q
++;
66 while (*p
&& toupperW( p
[1] ) != toupperW( q
[1] )) p
++;
69 if (toupperW( *p
++ ) != toupperW( *q
++ )) return FALSE
;
74 static HRESULT
eval_strcmp( UINT op
, const WCHAR
*lstr
, const WCHAR
*rstr
, LONGLONG
*val
)
84 *val
= !strcmpW( lstr
, rstr
);
87 *val
= strcmpW( lstr
, rstr
) > 0;
90 *val
= strcmpW( lstr
, rstr
) < 0;
93 *val
= strcmpW( lstr
, rstr
) <= 0;
96 *val
= strcmpW( lstr
, rstr
) >= 0;
99 *val
= strcmpW( lstr
, rstr
);
102 *val
= eval_like( lstr
, rstr
);
105 ERR("unhandled operator %u\n", op
);
106 return WBEM_E_INVALID_QUERY
;
111 static inline BOOL
is_strcmp( const struct complex_expr
*expr
)
113 return ((expr
->left
->type
== EXPR_PROPVAL
&& expr
->right
->type
== EXPR_SVAL
) ||
114 (expr
->left
->type
== EXPR_SVAL
&& expr
->right
->type
== EXPR_PROPVAL
));
117 static HRESULT
eval_cond( const struct table
*, UINT
, const struct expr
*, LONGLONG
* );
119 static HRESULT
eval_binary( const struct table
*table
, UINT row
, const struct complex_expr
*expr
,
125 lret
= eval_cond( table
, row
, expr
->left
, &lval
);
126 rret
= eval_cond( table
, row
, expr
->right
, &rval
);
127 if (lret
!= S_OK
|| rret
!= S_OK
) return WBEM_E_INVALID_QUERY
;
129 if (is_strcmp( expr
))
131 const WCHAR
*lstr
= (const WCHAR
*)(INT_PTR
)lval
;
132 const WCHAR
*rstr
= (const WCHAR
*)(INT_PTR
)rval
;
134 return eval_strcmp( expr
->op
, lstr
, rstr
, val
);
139 *val
= (lval
== rval
);
142 *val
= (lval
&& rval
);
145 *val
= (lval
|| rval
);
148 *val
= (lval
> rval
);
151 *val
= (lval
< rval
);
154 *val
= (lval
<= rval
);
157 *val
= (lval
>= rval
);
160 *val
= (lval
!= rval
);
163 ERR("unhandled operator %u\n", expr
->op
);
164 return WBEM_E_INVALID_QUERY
;
169 static HRESULT
eval_unary( const struct table
*table
, UINT row
, const struct complex_expr
*expr
,
177 hr
= get_column_index( table
, expr
->left
->u
.propval
->name
, &column
);
181 hr
= get_value( table
, row
, column
, &lval
);
194 ERR("unknown operator %u\n", expr
->op
);
195 return WBEM_E_INVALID_QUERY
;
200 static HRESULT
eval_propval( const struct table
*table
, UINT row
, const struct property
*propval
,
207 hr
= get_column_index( table
, propval
->name
, &column
);
211 return get_value( table
, row
, column
, val
);
214 static HRESULT
eval_cond( const struct table
*table
, UINT row
, const struct expr
*cond
,
225 return eval_binary( table
, row
, &cond
->u
.expr
, val
);
227 return eval_unary( table
, row
, &cond
->u
.expr
, val
);
229 return eval_propval( table
, row
, cond
->u
.propval
, val
);
231 *val
= (INT_PTR
)cond
->u
.sval
;
238 ERR("invalid expression type\n");
241 return WBEM_E_INVALID_QUERY
;
244 static HRESULT
execute_view( struct view
*view
)
248 if (!view
->table
|| !view
->table
->num_rows
) return S_OK
;
250 len
= min( view
->table
->num_rows
, 16 );
251 if (!(view
->result
= heap_alloc( len
* sizeof(UINT
) ))) return E_OUTOFMEMORY
;
253 for (i
= 0; i
< view
->table
->num_rows
; i
++)
262 if (!(tmp
= heap_realloc( view
->result
, len
* sizeof(UINT
) ))) return E_OUTOFMEMORY
;
265 if ((hr
= eval_cond( view
->table
, i
, view
->cond
, &val
)) != S_OK
) return hr
;
266 if (val
) view
->result
[j
++] = i
;
272 static struct query
*create_query(void)
276 if (!(query
= heap_alloc( sizeof(*query
) ))) return NULL
;
277 list_init( &query
->mem
);
282 static void free_query( struct query
*query
)
284 struct list
*mem
, *next
;
286 destroy_view( query
->view
);
287 LIST_FOR_EACH_SAFE( mem
, next
, &query
->mem
)
294 struct query
*addref_query( struct query
*query
)
296 InterlockedIncrement( &query
->refs
);
300 void release_query( struct query
*query
)
302 if (!InterlockedDecrement( &query
->refs
)) free_query( query
);
305 HRESULT
exec_query( const WCHAR
*str
, IEnumWbemClassObject
**result
)
311 if (!(query
= create_query())) return E_OUTOFMEMORY
;
312 hr
= parse_query( str
, &query
->view
, &query
->mem
);
313 if (hr
!= S_OK
) goto done
;
314 hr
= execute_view( query
->view
);
315 if (hr
!= S_OK
) goto done
;
316 hr
= EnumWbemClassObject_create( NULL
, query
, (void **)result
);
319 release_query( query
);
323 static BOOL
is_selected_prop( const struct view
*view
, const WCHAR
*name
)
325 const struct property
*prop
= view
->proplist
;
327 if (!prop
) return TRUE
;
330 if (!strcmpiW( prop
->name
, name
)) return TRUE
;
336 static BOOL
is_system_prop( const WCHAR
*name
)
338 return (name
[0] == '_' && name
[1] == '_');
341 static BSTR
build_servername( const struct view
*view
)
343 WCHAR server
[MAX_COMPUTERNAME_LENGTH
+ 1], *p
;
344 DWORD len
= sizeof(server
)/sizeof(server
[0]);
346 if (view
->proplist
) return NULL
;
348 if (!(GetComputerNameW( server
, &len
))) return NULL
;
349 for (p
= server
; *p
; p
++) *p
= toupperW( *p
);
350 return SysAllocString( server
);
353 static BSTR
build_classname( const struct view
*view
)
355 return SysAllocString( view
->table
->name
);
358 static BSTR
build_namespace( const struct view
*view
)
360 static const WCHAR cimv2W
[] = {'R','O','O','T','\\','C','I','M','V','2',0};
362 if (view
->proplist
) return NULL
;
363 return SysAllocString( cimv2W
);
366 static BSTR
build_proplist( const struct view
*view
, UINT index
, UINT count
, UINT
*len
)
368 static const WCHAR fmtW
[] = {'%','s','=','%','s',0};
369 UINT i
, j
, offset
, row
= view
->result
[index
];
370 BSTR
*values
, ret
= NULL
;
372 if (!(values
= heap_alloc( count
* sizeof(BSTR
) ))) return NULL
;
375 for (i
= 0; i
< view
->table
->num_cols
; i
++)
377 if (view
->table
->columns
[i
].type
& COL_FLAG_KEY
)
379 const WCHAR
*name
= view
->table
->columns
[i
].name
;
381 values
[j
] = get_value_bstr( view
->table
, row
, i
);
382 *len
+= strlenW( fmtW
) + strlenW( name
) + strlenW( values
[j
] );
386 if ((ret
= SysAllocStringLen( NULL
, *len
)))
389 for (i
= 0; i
< view
->table
->num_cols
; i
++)
391 if (view
->table
->columns
[i
].type
& COL_FLAG_KEY
)
393 const WCHAR
*name
= view
->table
->columns
[i
].name
;
395 offset
+= sprintfW( ret
+ offset
, fmtW
, name
, values
[j
] );
396 if (j
< count
- 1) ret
[offset
++] = ',';
401 for (i
= 0; i
< count
; i
++) SysFreeString( values
[i
] );
406 static UINT
count_key_columns( const struct view
*view
)
408 UINT i
, num_keys
= 0;
410 for (i
= 0; i
< view
->table
->num_cols
; i
++)
412 if (view
->table
->columns
[i
].type
& COL_FLAG_KEY
) num_keys
++;
417 static BSTR
build_relpath( const struct view
*view
, UINT index
, const WCHAR
*name
)
419 static const WCHAR fmtW
[] = {'%','s','.','%','s',0};
420 BSTR
class, proplist
, ret
= NULL
;
423 if (view
->proplist
) return NULL
;
425 if (!(class = build_classname( view
))) return NULL
;
426 if (!(num_keys
= count_key_columns( view
))) return class;
427 if (!(proplist
= build_proplist( view
, index
, num_keys
, &len
))) goto done
;
429 len
+= strlenW( fmtW
) + SysStringLen( class );
430 if (!(ret
= SysAllocStringLen( NULL
, len
))) goto done
;
431 sprintfW( ret
, fmtW
, class, proplist
);
434 SysFreeString( class );
435 SysFreeString( proplist
);
439 static BSTR
build_path( const struct view
*view
, UINT index
, const WCHAR
*name
)
441 static const WCHAR fmtW
[] = {'\\','\\','%','s','\\','%','s',':','%','s',0};
442 BSTR server
, namespace = NULL
, relpath
= NULL
, ret
= NULL
;
445 if (view
->proplist
) return NULL
;
447 if (!(server
= build_servername( view
))) return NULL
;
448 if (!(namespace = build_namespace( view
))) goto done
;
449 if (!(relpath
= build_relpath( view
, index
, name
))) goto done
;
451 len
= strlenW( fmtW
) + SysStringLen( server
) + SysStringLen( namespace ) + SysStringLen( relpath
);
452 if (!(ret
= SysAllocStringLen( NULL
, len
))) goto done
;
453 sprintfW( ret
, fmtW
, server
, namespace, relpath
);
456 SysFreeString( server
);
457 SysFreeString( namespace );
458 SysFreeString( relpath
);
462 static inline BOOL
is_method( const struct table
*table
, UINT column
)
464 return table
->columns
[column
].type
& COL_FLAG_METHOD
;
467 static UINT
count_properties( const struct view
*view
)
469 UINT i
, num_props
= 0;
471 for (i
= 0; i
< view
->table
->num_cols
; i
++)
473 if (!is_method( view
->table
, i
)) num_props
++;
478 static UINT
count_selected_properties( const struct view
*view
)
480 const struct property
*prop
= view
->proplist
;
483 if (!prop
) return count_properties( view
);
486 while ((prop
= prop
->next
)) count
++;
490 static HRESULT
get_system_propval( const struct view
*view
, UINT index
, const WCHAR
*name
,
491 VARIANT
*ret
, CIMTYPE
*type
, LONG
*flavor
)
493 static const WCHAR classW
[] = {'_','_','C','L','A','S','S',0};
494 static const WCHAR genusW
[] = {'_','_','G','E','N','U','S',0};
495 static const WCHAR pathW
[] = {'_','_','P','A','T','H',0};
496 static const WCHAR namespaceW
[] = {'_','_','N','A','M','E','S','P','A','C','E',0};
497 static const WCHAR propcountW
[] = {'_','_','P','R','O','P','E','R','T','Y','_','C','O','U','N','T',0};
498 static const WCHAR relpathW
[] = {'_','_','R','E','L','P','A','T','H',0};
499 static const WCHAR serverW
[] = {'_','_','S','E','R','V','E','R',0};
501 if (flavor
) *flavor
= WBEM_FLAVOR_ORIGIN_SYSTEM
;
503 if (!strcmpiW( name
, classW
))
505 V_VT( ret
) = VT_BSTR
;
506 V_BSTR( ret
) = build_classname( view
);
507 if (type
) *type
= CIM_STRING
;
510 if (!strcmpiW( name
, genusW
))
513 V_I4( ret
) = WBEM_GENUS_INSTANCE
; /* FIXME */
514 if (type
) *type
= CIM_SINT32
;
517 else if (!strcmpiW( name
, namespaceW
))
519 V_VT( ret
) = VT_BSTR
;
520 V_BSTR( ret
) = build_namespace( view
);
521 if (type
) *type
= CIM_STRING
;
524 else if (!strcmpiW( name
, pathW
))
526 V_VT( ret
) = VT_BSTR
;
527 V_BSTR( ret
) = build_path( view
, index
, name
);
528 if (type
) *type
= CIM_STRING
;
531 if (!strcmpiW( name
, propcountW
))
534 V_I4( ret
) = count_selected_properties( view
);
535 if (type
) *type
= CIM_SINT32
;
538 else if (!strcmpiW( name
, relpathW
))
540 V_VT( ret
) = VT_BSTR
;
541 V_BSTR( ret
) = build_relpath( view
, index
, name
);
542 if (type
) *type
= CIM_STRING
;
545 else if (!strcmpiW( name
, serverW
))
547 V_VT( ret
) = VT_BSTR
;
548 V_BSTR( ret
) = build_servername( view
);
549 if (type
) *type
= CIM_STRING
;
552 FIXME("system property %s not implemented\n", debugstr_w(name
));
553 return WBEM_E_NOT_FOUND
;
556 VARTYPE
to_vartype( CIMTYPE type
)
560 case CIM_BOOLEAN
: return VT_BOOL
;
562 case CIM_DATETIME
: return VT_BSTR
;
563 case CIM_SINT16
: return VT_I2
;
564 case CIM_UINT16
: return VT_UI2
;
565 case CIM_SINT32
: return VT_I4
;
566 case CIM_UINT32
: return VT_UI4
;
567 case CIM_SINT64
: return VT_I8
;
568 case CIM_UINT64
: return VT_UI8
;
570 ERR("unhandled type %u\n", type
);
576 SAFEARRAY
*to_safearray( const struct array
*array
, CIMTYPE type
)
579 UINT size
= get_type_size( type
);
580 VARTYPE vartype
= to_vartype( type
);
583 if (!array
|| !(ret
= SafeArrayCreateVector( vartype
, 0, array
->count
))) return NULL
;
585 for (i
= 0; i
< array
->count
; i
++)
587 void *ptr
= (char *)array
->ptr
+ i
* size
;
588 if (vartype
== VT_BSTR
)
590 BSTR str
= SysAllocString( *(const WCHAR
**)ptr
);
591 if (!str
|| SafeArrayPutElement( ret
, &i
, str
) != S_OK
)
593 SysFreeString( str
);
594 SafeArrayDestroy( ret
);
598 else if (SafeArrayPutElement( ret
, &i
, ptr
) != S_OK
)
600 SafeArrayDestroy( ret
);
607 void set_variant( VARTYPE type
, LONGLONG val
, void *val_ptr
, VARIANT
*ret
)
612 V_ARRAY( ret
) = val_ptr
;
621 V_BSTR( ret
) = val_ptr
;
638 ERR("unhandled variant type %u\n", type
);
644 HRESULT
get_propval( const struct view
*view
, UINT index
, const WCHAR
*name
, VARIANT
*ret
,
645 CIMTYPE
*type
, LONG
*flavor
)
650 void *val_ptr
= NULL
;
653 if (is_system_prop( name
)) return get_system_propval( view
, index
, name
, ret
, type
, flavor
);
654 if (!view
->count
|| !is_selected_prop( view
, name
)) return WBEM_E_NOT_FOUND
;
656 hr
= get_column_index( view
->table
, name
, &column
);
657 if (hr
!= S_OK
|| is_method( view
->table
, column
)) return WBEM_E_NOT_FOUND
;
659 row
= view
->result
[index
];
660 hr
= get_value( view
->table
, row
, column
, &val
);
661 if (hr
!= S_OK
) return hr
;
663 vartype
= view
->table
->columns
[column
].vartype
;
664 if (view
->table
->columns
[column
].type
& CIM_FLAG_ARRAY
)
666 CIMTYPE basetype
= view
->table
->columns
[column
].type
& CIM_TYPE_MASK
;
668 val_ptr
= to_safearray( (const struct array
*)(INT_PTR
)val
, basetype
);
669 if (!vartype
) vartype
= to_vartype( basetype
) | VT_ARRAY
;
672 switch (view
->table
->columns
[column
].type
& COL_TYPE_MASK
)
675 if (!vartype
) vartype
= VT_BOOL
;
682 val_ptr
= SysAllocString( (const WCHAR
*)(INT_PTR
)val
);
688 if (!vartype
) vartype
= VT_I2
;
691 if (!vartype
) vartype
= VT_UI2
;
694 if (!vartype
) vartype
= VT_I4
;
697 if (!vartype
) vartype
= VT_UI4
;
701 val_ptr
= get_value_bstr( view
->table
, row
, column
);
705 val_ptr
= get_value_bstr( view
->table
, row
, column
);
708 ERR("unhandled column type %u\n", view
->table
->columns
[column
].type
);
709 return WBEM_E_FAILED
;
713 set_variant( vartype
, val
, val_ptr
, ret
);
714 if (type
) *type
= view
->table
->columns
[column
].type
& COL_TYPE_MASK
;
715 if (flavor
) *flavor
= 0;
719 static CIMTYPE
to_cimtype( VARTYPE type
)
723 case VT_BOOL
: return CIM_BOOLEAN
;
724 case VT_BSTR
: return CIM_STRING
;
725 case VT_I2
: return CIM_SINT16
;
726 case VT_UI2
: return CIM_UINT16
;
727 case VT_I4
: return CIM_SINT32
;
728 case VT_UI4
: return CIM_UINT32
;
729 case VT_I8
: return CIM_SINT64
;
730 case VT_UI8
: return CIM_UINT64
;
732 ERR("unhandled type %u\n", type
);
738 static struct array
*to_array( VARIANT
*var
, CIMTYPE
*type
)
746 if (SafeArrayGetVartype( V_ARRAY( var
), &vartype
) != S_OK
) return NULL
;
747 if (!(basetype
= to_cimtype( vartype
))) return NULL
;
748 if (SafeArrayGetUBound( V_ARRAY( var
), 1, &bound
) != S_OK
) return NULL
;
749 if (!(ret
= heap_alloc( sizeof(struct array
) ))) return NULL
;
751 ret
->count
= bound
+ 1;
752 size
= get_type_size( basetype
);
753 if (!(ret
->ptr
= heap_alloc_zero( ret
->count
* size
)))
758 for (i
= 0; i
< ret
->count
; i
++)
760 void *ptr
= (char *)ret
->ptr
+ i
* size
;
761 if (vartype
== VT_BSTR
)
764 if (SafeArrayGetElement( V_ARRAY( var
), &i
, &str
) != S_OK
)
766 destroy_array( ret
, basetype
);
769 *(WCHAR
**)ptr
= heap_strdupW( str
);
770 SysFreeString( str
);
773 destroy_array( ret
, basetype
);
777 else if (SafeArrayGetElement( V_ARRAY( var
), &i
, ptr
) != S_OK
)
779 destroy_array( ret
, basetype
);
783 *type
= basetype
| CIM_FLAG_ARRAY
;
787 HRESULT
to_longlong( VARIANT
*var
, LONGLONG
*val
, CIMTYPE
*type
)
794 if (V_VT( var
) & VT_ARRAY
)
796 *val
= (INT_PTR
)to_array( var
, type
);
797 if (!*val
) return E_OUTOFMEMORY
;
803 *val
= V_BOOL( var
);
807 *val
= (INT_PTR
)heap_strdupW( V_BSTR( var
) );
808 if (!*val
) return E_OUTOFMEMORY
;
831 ERR("unhandled type %u\n", V_VT( var
));
832 return WBEM_E_FAILED
;
837 HRESULT
put_propval( const struct view
*view
, UINT index
, const WCHAR
*name
, VARIANT
*var
, CIMTYPE type
)
840 UINT column
, row
= view
->result
[index
];
843 hr
= get_column_index( view
->table
, name
, &column
);
846 FIXME("no support for creating new properties\n");
847 return WBEM_E_FAILED
;
849 if (is_method( view
->table
, column
) || !(view
->table
->columns
[column
].type
& COL_FLAG_DYNAMIC
))
850 return WBEM_E_FAILED
;
852 hr
= to_longlong( var
, &val
, &type
);
853 if (hr
!= S_OK
) return hr
;
855 return set_value( view
->table
, row
, column
, val
, type
);
858 HRESULT
get_properties( const struct view
*view
, SAFEARRAY
**props
)
863 UINT num_props
= count_properties( view
);
865 if (!(sa
= SafeArrayCreateVector( VT_BSTR
, 0, num_props
))) return E_OUTOFMEMORY
;
867 for (i
= 0; i
< view
->table
->num_cols
; i
++)
869 if (is_method( view
->table
, i
)) continue;
871 str
= SysAllocString( view
->table
->columns
[i
].name
);
872 if (!str
|| SafeArrayPutElement( sa
, &i
, str
) != S_OK
)
874 SysFreeString( str
);
875 SafeArrayDestroy( sa
);
876 return E_OUTOFMEMORY
;