| /* |
| * Copyright 2012 Hans Leidekker for CodeWeavers |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA |
| */ |
| |
| #define COBJMACROS |
| |
| #include "config.h" |
| #include <stdarg.h> |
| |
| #include "windef.h" |
| #include "winbase.h" |
| #include "wbemcli.h" |
| |
| #include "wine/debug.h" |
| #include "wbemprox_private.h" |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(wbemprox); |
| |
| HRESULT create_view( const struct property *proplist, const WCHAR *class, |
| const struct expr *cond, struct view **ret ) |
| { |
| struct view *view = heap_alloc( sizeof(struct view) ); |
| |
| if (!view) return E_OUTOFMEMORY; |
| view->proplist = proplist; |
| view->table = get_table( class ); |
| view->cond = cond; |
| view->result = NULL; |
| view->count = 0; |
| *ret = view; |
| return S_OK; |
| } |
| |
| void destroy_view( struct view *view ) |
| { |
| free_table( view->table ); |
| heap_free( view->result ); |
| heap_free( view ); |
| } |
| |
| static BOOL eval_like( const WCHAR *lstr, const WCHAR *rstr ) |
| { |
| const WCHAR *p = lstr, *q = rstr; |
| |
| while (*p && *q) |
| { |
| if (*q == '%') |
| { |
| while (*q == '%') q++; |
| if (!*q) return TRUE; |
| while (*p && toupperW( p[1] ) != toupperW( q[1] )) p++; |
| if (!*p) return TRUE; |
| } |
| if (toupperW( *p++ ) != toupperW( *q++ )) return FALSE; |
| } |
| return TRUE; |
| } |
| |
| static HRESULT eval_strcmp( UINT op, const WCHAR *lstr, const WCHAR *rstr, LONGLONG *val ) |
| { |
| switch (op) |
| { |
| case OP_EQ: |
| *val = !strcmpW( lstr, rstr ); |
| break; |
| case OP_GT: |
| *val = strcmpW( lstr, rstr ) > 0; |
| break; |
| case OP_LT: |
| *val = strcmpW( lstr, rstr ) < 0; |
| break; |
| case OP_LE: |
| *val = strcmpW( lstr, rstr ) <= 0; |
| break; |
| case OP_GE: |
| *val = strcmpW( lstr, rstr ) >= 0; |
| break; |
| case OP_NE: |
| *val = strcmpW( lstr, rstr ); |
| break; |
| case OP_LIKE: |
| *val = eval_like( lstr, rstr ); |
| break; |
| default: |
| ERR("unhandled operator %u\n", op); |
| return WBEM_E_INVALID_QUERY; |
| } |
| return S_OK; |
| } |
| |
| static inline BOOL is_strcmp( const struct complex_expr *expr ) |
| { |
| return ((expr->left->type == EXPR_PROPVAL && expr->right->type == EXPR_SVAL) || |
| (expr->left->type == EXPR_SVAL && expr->right->type == EXPR_PROPVAL)); |
| } |
| |
| static HRESULT eval_cond( const struct table *, UINT, const struct expr *, LONGLONG * ); |
| |
| static HRESULT eval_binary( const struct table *table, UINT row, const struct complex_expr *expr, |
| LONGLONG *val ) |
| { |
| HRESULT lret, rret; |
| LONGLONG lval, rval; |
| |
| lret = eval_cond( table, row, expr->left, &lval ); |
| rret = eval_cond( table, row, expr->right, &rval ); |
| if (lret != S_OK || rret != S_OK) return WBEM_E_INVALID_QUERY; |
| |
| if (is_strcmp( expr )) |
| { |
| const WCHAR *lstr = (const WCHAR *)(INT_PTR)lval; |
| const WCHAR *rstr = (const WCHAR *)(INT_PTR)rval; |
| |
| return eval_strcmp( expr->op, lstr, rstr, val ); |
| } |
| switch (expr->op) |
| { |
| case OP_EQ: |
| *val = (lval == rval); |
| break; |
| case OP_AND: |
| *val = (lval && rval); |
| break; |
| case OP_OR: |
| *val = (lval || rval); |
| break; |
| case OP_GT: |
| *val = (lval > rval); |
| break; |
| case OP_LT: |
| *val = (lval < rval); |
| break; |
| case OP_LE: |
| *val = (lval <= rval); |
| break; |
| case OP_GE: |
| *val = (lval >= rval); |
| break; |
| case OP_NE: |
| *val = (lval != rval); |
| break; |
| default: |
| ERR("unhandled operator %u\n", expr->op); |
| return WBEM_E_INVALID_QUERY; |
| } |
| return S_OK; |
| } |
| |
| static HRESULT eval_unary( const struct table *table, UINT row, const struct complex_expr *expr, |
| LONGLONG *val ) |
| |
| { |
| HRESULT hr; |
| UINT column; |
| LONGLONG lval; |
| |
| hr = get_column_index( table, expr->left->u.propval->name, &column ); |
| if (hr != S_OK) |
| return hr; |
| |
| hr = get_value( table, row, column, &lval ); |
| if (hr != S_OK) |
| return hr; |
| |
| switch (expr->op) |
| { |
| case OP_ISNULL: |
| *val = !lval; |
| break; |
| case OP_NOTNULL: |
| *val = lval; |
| break; |
| default: |
| ERR("unknown operator %u\n", expr->op); |
| return WBEM_E_INVALID_QUERY; |
| } |
| return S_OK; |
| } |
| |
| static HRESULT eval_propval( const struct table *table, UINT row, const struct property *propval, |
| LONGLONG *val ) |
| |
| { |
| HRESULT hr; |
| UINT column; |
| |
| hr = get_column_index( table, propval->name, &column ); |
| if (hr != S_OK) |
| return hr; |
| |
| return get_value( table, row, column, val ); |
| } |
| |
| static HRESULT eval_cond( const struct table *table, UINT row, const struct expr *cond, |
| LONGLONG *val ) |
| { |
| if (!cond) |
| { |
| *val = 1; |
| return S_OK; |
| } |
| switch (cond->type) |
| { |
| case EXPR_COMPLEX: |
| return eval_binary( table, row, &cond->u.expr, val ); |
| case EXPR_UNARY: |
| return eval_unary( table, row, &cond->u.expr, val ); |
| case EXPR_PROPVAL: |
| return eval_propval( table, row, cond->u.propval, val ); |
| case EXPR_SVAL: |
| *val = (LONGLONG)(INT_PTR)cond->u.sval; |
| return S_OK; |
| case EXPR_IVAL: |
| case EXPR_BVAL: |
| *val = cond->u.ival; |
| return S_OK; |
| default: |
| ERR("invalid expression type\n"); |
| break; |
| } |
| return WBEM_E_INVALID_QUERY; |
| } |
| |
| static HRESULT execute_view( struct view *view ) |
| { |
| UINT i, j = 0, len; |
| |
| if (!view->table || !view->table->num_rows) return S_OK; |
| |
| len = min( view->table->num_rows, 16 ); |
| if (!(view->result = heap_alloc( len * sizeof(UINT) ))) return E_OUTOFMEMORY; |
| |
| for (i = 0; i < view->table->num_rows; i++) |
| { |
| HRESULT hr; |
| LONGLONG val = 0; |
| |
| if (j >= len) |
| { |
| UINT *tmp; |
| len *= 2; |
| if (!(tmp = heap_realloc( view->result, len * sizeof(UINT) ))) return E_OUTOFMEMORY; |
| view->result = tmp; |
| } |
| if ((hr = eval_cond( view->table, i, view->cond, &val )) != S_OK) return hr; |
| if (val) view->result[j++] = i; |
| } |
| view->count = j; |
| return S_OK; |
| } |
| |
| static struct query *create_query(void) |
| { |
| struct query *query; |
| |
| if (!(query = heap_alloc( sizeof(*query) ))) return NULL; |
| list_init( &query->mem ); |
| query->refs = 1; |
| return query; |
| } |
| |
| static void free_query( struct query *query ) |
| { |
| struct list *mem, *next; |
| |
| destroy_view( query->view ); |
| LIST_FOR_EACH_SAFE( mem, next, &query->mem ) |
| { |
| heap_free( mem ); |
| } |
| heap_free( query ); |
| } |
| |
| void addref_query( struct query *query ) |
| { |
| InterlockedIncrement( &query->refs ); |
| } |
| |
| void release_query( struct query *query ) |
| { |
| if (!InterlockedDecrement( &query->refs )) free_query( query ); |
| } |
| |
| HRESULT exec_query( const WCHAR *str, IEnumWbemClassObject **result ) |
| { |
| HRESULT hr; |
| struct query *query; |
| |
| *result = NULL; |
| if (!(query = create_query())) return E_OUTOFMEMORY; |
| hr = parse_query( str, &query->view, &query->mem ); |
| if (hr != S_OK) goto done; |
| hr = execute_view( query->view ); |
| if (hr != S_OK) goto done; |
| hr = EnumWbemClassObject_create( NULL, query, (void **)result ); |
| |
| done: |
| release_query( query ); |
| return hr; |
| } |
| |
| static BOOL is_selected_prop( const struct view *view, const WCHAR *name ) |
| { |
| const struct property *prop = view->proplist; |
| |
| if (!prop) return TRUE; |
| while (prop) |
| { |
| if (!strcmpiW( prop->name, name )) return TRUE; |
| prop = prop->next; |
| } |
| return FALSE; |
| } |
| |
| static BOOL is_system_prop( const WCHAR *name ) |
| { |
| return (name[0] == '_' && name[1] == '_'); |
| } |
| |
| static BSTR build_servername( const struct view *view ) |
| { |
| WCHAR server[MAX_COMPUTERNAME_LENGTH + 1], *p; |
| DWORD len = sizeof(server)/sizeof(server[0]); |
| |
| if (view->proplist) return NULL; |
| |
| if (!(GetComputerNameW( server, &len ))) return NULL; |
| for (p = server; *p; p++) *p = toupperW( *p ); |
| return SysAllocString( server ); |
| } |
| |
| static BSTR build_classname( const struct view *view ) |
| { |
| return SysAllocString( view->table->name ); |
| } |
| |
| static BSTR build_namespace( const struct view *view ) |
| { |
| static const WCHAR cimv2W[] = {'R','O','O','T','\\','C','I','M','V','2',0}; |
| |
| if (view->proplist) return NULL; |
| return SysAllocString( cimv2W ); |
| } |
| |
| static BSTR build_proplist( const struct view *view, UINT index, UINT count, UINT *len ) |
| { |
| static const WCHAR fmtW[] = {'%','s','=','%','s',0}; |
| UINT i, j, offset, row = view->result[index]; |
| BSTR *values, ret = NULL; |
| |
| if (!(values = heap_alloc( count * sizeof(BSTR) ))) return NULL; |
| |
| *len = j = 0; |
| for (i = 0; i < view->table->num_cols; i++) |
| { |
| if (view->table->columns[i].type & COL_FLAG_KEY) |
| { |
| const WCHAR *name = view->table->columns[i].name; |
| |
| values[j] = get_value_bstr( view->table, row, i ); |
| *len += strlenW( fmtW ) + strlenW( name ) + strlenW( values[j] ); |
| j++; |
| } |
| } |
| if ((ret = SysAllocStringLen( NULL, *len ))) |
| { |
| offset = j = 0; |
| for (i = 0; i < view->table->num_cols; i++) |
| { |
| if (view->table->columns[i].type & COL_FLAG_KEY) |
| { |
| const WCHAR *name = view->table->columns[i].name; |
| |
| offset += sprintfW( ret + offset, fmtW, name, values[j] ); |
| if (j < count - 1) ret[offset++] = ','; |
| j++; |
| } |
| } |
| } |
| for (i = 0; i < count; i++) SysFreeString( values[i] ); |
| heap_free( values ); |
| return ret; |
| } |
| |
| static UINT count_key_columns( const struct view *view ) |
| { |
| UINT i, num_keys = 0; |
| |
| for (i = 0; i < view->table->num_cols; i++) |
| { |
| if (view->table->columns[i].type & COL_FLAG_KEY) num_keys++; |
| } |
| return num_keys; |
| } |
| |
| static BSTR build_relpath( const struct view *view, UINT index, const WCHAR *name ) |
| { |
| static const WCHAR fmtW[] = {'%','s','.','%','s',0}; |
| BSTR class, proplist, ret = NULL; |
| UINT num_keys, len; |
| |
| if (view->proplist) return NULL; |
| |
| if (!(class = build_classname( view ))) return NULL; |
| if (!(num_keys = count_key_columns( view ))) return class; |
| if (!(proplist = build_proplist( view, index, num_keys, &len ))) goto done; |
| |
| len += strlenW( fmtW ) + SysStringLen( class ); |
| if (!(ret = SysAllocStringLen( NULL, len ))) goto done; |
| sprintfW( ret, fmtW, class, proplist ); |
| |
| done: |
| SysFreeString( class ); |
| SysFreeString( proplist ); |
| return ret; |
| } |
| |
| static BSTR build_path( const struct view *view, UINT index, const WCHAR *name ) |
| { |
| static const WCHAR fmtW[] = {'\\','\\','%','s','\\','%','s',':','%','s',0}; |
| BSTR server, namespace = NULL, relpath = NULL, ret = NULL; |
| UINT len; |
| |
| if (view->proplist) return NULL; |
| |
| if (!(server = build_servername( view ))) return NULL; |
| if (!(namespace = build_namespace( view ))) goto done; |
| if (!(relpath = build_relpath( view, index, name ))) goto done; |
| |
| len = strlenW( fmtW ) + SysStringLen( server ) + SysStringLen( namespace ) + SysStringLen( relpath ); |
| if (!(ret = SysAllocStringLen( NULL, len ))) goto done; |
| sprintfW( ret, fmtW, server, namespace, relpath ); |
| |
| done: |
| SysFreeString( server ); |
| SysFreeString( namespace ); |
| SysFreeString( relpath ); |
| return ret; |
| } |
| |
| static inline BOOL is_method( const struct table *table, UINT column ) |
| { |
| return table->columns[column].type & COL_FLAG_METHOD; |
| } |
| |
| static UINT count_properties( const struct view *view ) |
| { |
| UINT i, num_props = 0; |
| |
| for (i = 0; i < view->table->num_cols; i++) |
| { |
| if (!is_method( view->table, i)) num_props++; |
| } |
| return num_props; |
| } |
| |
| static UINT count_selected_properties( const struct view *view ) |
| { |
| const struct property *prop = view->proplist; |
| UINT count; |
| |
| if (!prop) return count_properties( view ); |
| |
| count = 1; |
| while ((prop = prop->next)) count++; |
| return count; |
| } |
| |
| static HRESULT get_system_propval( const struct view *view, UINT index, const WCHAR *name, |
| VARIANT *ret, CIMTYPE *type, LONG *flavor ) |
| { |
| static const WCHAR classW[] = {'_','_','C','L','A','S','S',0}; |
| static const WCHAR genusW[] = {'_','_','G','E','N','U','S',0}; |
| static const WCHAR pathW[] = {'_','_','P','A','T','H',0}; |
| static const WCHAR namespaceW[] = {'_','_','N','A','M','E','S','P','A','C','E',0}; |
| static const WCHAR propcountW[] = {'_','_','P','R','O','P','E','R','T','Y','_','C','O','U','N','T',0}; |
| static const WCHAR relpathW[] = {'_','_','R','E','L','P','A','T','H',0}; |
| static const WCHAR serverW[] = {'_','_','S','E','R','V','E','R',0}; |
| |
| if (flavor) *flavor = WBEM_FLAVOR_ORIGIN_SYSTEM; |
| |
| if (!strcmpiW( name, classW )) |
| { |
| V_VT( ret ) = VT_BSTR; |
| V_BSTR( ret ) = build_classname( view ); |
| if (type) *type = CIM_STRING; |
| return S_OK; |
| } |
| if (!strcmpiW( name, genusW )) |
| { |
| V_VT( ret ) = VT_I4; |
| V_I4( ret ) = WBEM_GENUS_INSTANCE; /* FIXME */ |
| if (type) *type = CIM_SINT32; |
| return S_OK; |
| } |
| else if (!strcmpiW( name, namespaceW )) |
| { |
| V_VT( ret ) = VT_BSTR; |
| V_BSTR( ret ) = build_namespace( view ); |
| if (type) *type = CIM_STRING; |
| return S_OK; |
| } |
| else if (!strcmpiW( name, pathW )) |
| { |
| V_VT( ret ) = VT_BSTR; |
| V_BSTR( ret ) = build_path( view, index, name ); |
| if (type) *type = CIM_STRING; |
| return S_OK; |
| } |
| if (!strcmpiW( name, propcountW )) |
| { |
| V_VT( ret ) = VT_I4; |
| V_I4( ret ) = count_selected_properties( view ); |
| if (type) *type = CIM_SINT32; |
| return S_OK; |
| } |
| else if (!strcmpiW( name, relpathW )) |
| { |
| V_VT( ret ) = VT_BSTR; |
| V_BSTR( ret ) = build_relpath( view, index, name ); |
| if (type) *type = CIM_STRING; |
| return S_OK; |
| } |
| else if (!strcmpiW( name, serverW )) |
| { |
| V_VT( ret ) = VT_BSTR; |
| V_BSTR( ret ) = build_servername( view ); |
| if (type) *type = CIM_STRING; |
| return S_OK; |
| } |
| FIXME("system property %s not implemented\n", debugstr_w(name)); |
| return WBEM_E_NOT_FOUND; |
| } |
| |
| static void set_variant( VARTYPE vartype, LONGLONG val, BSTR val_bstr, VARIANT *ret ) |
| { |
| switch (vartype) |
| { |
| case VT_BOOL: |
| V_VT( ret ) = VT_BOOL; |
| V_BOOL( ret ) = val; |
| return; |
| case VT_BSTR: |
| V_VT( ret ) = VT_BSTR; |
| V_BSTR( ret ) = val_bstr; |
| return; |
| case VT_I2: |
| V_VT( ret ) = VT_I2; |
| V_I2( ret ) = val; |
| return; |
| case VT_UI2: |
| V_VT( ret ) = VT_UI2; |
| V_UI2( ret ) = val; |
| return; |
| case VT_I4: |
| V_VT( ret ) = VT_I4; |
| V_I4( ret ) = val; |
| return; |
| case VT_UI4: |
| V_VT( ret ) = VT_UI4; |
| V_UI4( ret ) = val; |
| return; |
| case VT_NULL: |
| V_VT( ret ) = VT_NULL; |
| return; |
| default: |
| ERR("unhandled variant type %u\n", vartype); |
| return; |
| } |
| } |
| |
| HRESULT get_propval( const struct view *view, UINT index, const WCHAR *name, VARIANT *ret, |
| CIMTYPE *type, LONG *flavor ) |
| { |
| HRESULT hr; |
| UINT column, row = view->result[index]; |
| VARTYPE vartype; |
| BSTR val_bstr = NULL; |
| LONGLONG val; |
| |
| if (is_system_prop( name )) return get_system_propval( view, index, name, ret, type, flavor ); |
| if (!is_selected_prop( view, name )) return WBEM_E_NOT_FOUND; |
| |
| hr = get_column_index( view->table, name, &column ); |
| if (hr != S_OK || is_method( view->table, column )) return WBEM_E_NOT_FOUND; |
| |
| vartype = view->table->columns[column].vartype; |
| |
| hr = get_value( view->table, row, column, &val ); |
| if (hr != S_OK) return hr; |
| |
| switch (view->table->columns[column].type & COL_TYPE_MASK) |
| { |
| case CIM_BOOLEAN: |
| if (!vartype) vartype = VT_BOOL; |
| break; |
| case CIM_STRING: |
| case CIM_DATETIME: |
| if (val) |
| { |
| vartype = VT_BSTR; |
| val_bstr = SysAllocString( (const WCHAR *)(INT_PTR)val ); |
| } |
| else |
| vartype = VT_NULL; |
| break; |
| case CIM_SINT16: |
| if (!vartype) vartype = VT_I2; |
| break; |
| case CIM_UINT16: |
| if (!vartype) vartype = VT_UI2; |
| break; |
| case CIM_SINT32: |
| if (!vartype) vartype = VT_I4; |
| break; |
| case CIM_UINT32: |
| if (!vartype) vartype = VT_UI4; |
| break; |
| case CIM_SINT64: |
| vartype = VT_BSTR; |
| val_bstr = get_value_bstr( view->table, row, column ); |
| break; |
| case CIM_UINT64: |
| vartype = VT_BSTR; |
| val_bstr = get_value_bstr( view->table, row, column ); |
| break; |
| default: |
| ERR("unhandled column type %u\n", view->table->columns[column].type); |
| return WBEM_E_FAILED; |
| } |
| set_variant( vartype, val, val_bstr, ret ); |
| if (type) *type = view->table->columns[column].type & COL_TYPE_MASK; |
| if (flavor) *flavor = 0; |
| return S_OK; |
| } |
| |
| HRESULT variant_to_longlong( VARIANT *var, LONGLONG *val, CIMTYPE *type ) |
| { |
| if (!var) |
| { |
| *val = 0; |
| return S_OK; |
| } |
| switch (V_VT( var )) |
| { |
| case VT_BOOL: |
| *val = V_BOOL( var ); |
| *type = CIM_BOOLEAN; |
| break; |
| case VT_BSTR: |
| *val = (INT_PTR)SysAllocString( V_BSTR( var ) ); |
| if (!*val) return E_OUTOFMEMORY; |
| *type = CIM_STRING; |
| break; |
| case VT_I2: |
| *val = V_I2( var ); |
| *type = CIM_SINT16; |
| break; |
| case VT_UI2: |
| *val = V_UI2( var ); |
| *type = CIM_UINT16; |
| break; |
| case VT_I4: |
| *val = V_I4( var ); |
| *type = CIM_SINT32; |
| break; |
| case VT_UI4: |
| *val = V_UI4( var ); |
| *type = CIM_UINT32; |
| break; |
| case VT_NULL: |
| *val = 0; |
| break; |
| default: |
| ERR("unhandled type %u\n", V_VT( var )); |
| return WBEM_E_FAILED; |
| } |
| return S_OK; |
| } |
| |
| HRESULT put_propval( const struct view *view, UINT index, const WCHAR *name, VARIANT *var, CIMTYPE type ) |
| { |
| HRESULT hr; |
| UINT column, row = view->result[index]; |
| LONGLONG val; |
| |
| hr = get_column_index( view->table, name, &column ); |
| if (hr != S_OK) |
| { |
| FIXME("no support for creating new properties\n"); |
| return WBEM_E_FAILED; |
| } |
| if (is_method( view->table, column ) || !(view->table->columns[column].type & COL_FLAG_DYNAMIC)) |
| return WBEM_E_FAILED; |
| |
| hr = variant_to_longlong( var, &val, &type ); |
| if (hr != S_OK) return hr; |
| |
| return set_value( view->table, row, column, val, type ); |
| } |
| |
| HRESULT get_properties( const struct view *view, SAFEARRAY **props ) |
| { |
| SAFEARRAY *sa; |
| BSTR str; |
| LONG i; |
| UINT num_props = count_properties( view ); |
| |
| if (!(sa = SafeArrayCreateVector( VT_BSTR, 0, num_props ))) return E_OUTOFMEMORY; |
| |
| for (i = 0; i < view->table->num_cols; i++) |
| { |
| if (is_method( view->table, i )) continue; |
| |
| str = SysAllocString( view->table->columns[i].name ); |
| if (!str || SafeArrayPutElement( sa, &i, str ) != S_OK) |
| { |
| SysFreeString( str ); |
| SafeArrayDestroy( sa ); |
| return E_OUTOFMEMORY; |
| } |
| } |
| *props = sa; |
| return S_OK; |
| } |
