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https://github.com/reactos/wine.git
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738 lines
18 KiB
C
738 lines
18 KiB
C
/*
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* Implementation of the Microsoft Installer (msi.dll)
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*
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* Copyright 2002 Mike McCormack for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <stdarg.h>
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#include "windef.h"
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#include "winbase.h"
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#include "winerror.h"
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#include "wine/debug.h"
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#include "wine/unicode.h"
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#include "msi.h"
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#include "msiquery.h"
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#include "objbase.h"
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#include "objidl.h"
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#include "msipriv.h"
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#include "winnls.h"
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#include "query.h"
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WINE_DEFAULT_DEBUG_CHANNEL(msidb);
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#define MSI_HASH_TABLE_SIZE 37
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typedef struct tagMSIHASHENTRY
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{
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struct tagMSIHASHENTRY *next;
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UINT value;
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UINT row;
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} MSIHASHENTRY;
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/* below is the query interface to a table */
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typedef struct tagMSIWHEREVIEW
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{
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MSIVIEW view;
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MSIDATABASE *db;
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MSIVIEW *table;
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UINT row_count;
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MSIHASHENTRY **reorder;
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struct expr *cond;
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UINT rec_index;
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} MSIWHEREVIEW;
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static void free_hash_table(MSIHASHENTRY **table)
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{
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MSIHASHENTRY *new, *old;
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int i;
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if (!table)
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return;
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for (i = 0; i < MSI_HASH_TABLE_SIZE; i++)
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{
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new = table[i];
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while (new)
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{
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old = new;
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new = old->next;
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msi_free(old);
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}
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table[i] = NULL;
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}
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msi_free(table);
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}
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static UINT find_entry_in_hash(MSIHASHENTRY **table, UINT row, UINT *val)
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{
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MSIHASHENTRY *entry;
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if (!table)
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return ERROR_SUCCESS;
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if (!(entry = table[row % MSI_HASH_TABLE_SIZE]))
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{
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WARN("Row not found in hash table!\n");
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return ERROR_FUNCTION_FAILED;
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}
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while (entry && entry->row != row)
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entry = entry->next;
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if (entry) *val = entry->value;
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return ERROR_SUCCESS;
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}
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static UINT add_entry_to_hash(MSIHASHENTRY **table, UINT row, UINT val)
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{
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MSIHASHENTRY *new = msi_alloc(sizeof(MSIHASHENTRY));
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MSIHASHENTRY *prev;
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if (!new)
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return ERROR_OUTOFMEMORY;
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new->next = NULL;
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new->value = val;
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new->row = row;
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prev = table[row % MSI_HASH_TABLE_SIZE];
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if (prev)
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new->next = prev;
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table[row % MSI_HASH_TABLE_SIZE] = new;
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return ERROR_SUCCESS;
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}
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static UINT WHERE_fetch_int( struct tagMSIVIEW *view, UINT row, UINT col, UINT *val )
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{
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MSIWHEREVIEW *wv = (MSIWHEREVIEW*)view;
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UINT r;
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TRACE("%p %d %d %p\n", wv, row, col, val );
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if( !wv->table )
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return ERROR_FUNCTION_FAILED;
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if( row > wv->row_count )
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return ERROR_NO_MORE_ITEMS;
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r = find_entry_in_hash(wv->reorder, row, &row);
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if (r != ERROR_SUCCESS)
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return r;
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return wv->table->ops->fetch_int( wv->table, row, col, val );
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}
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static UINT WHERE_fetch_stream( struct tagMSIVIEW *view, UINT row, UINT col, IStream **stm )
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{
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MSIWHEREVIEW *wv = (MSIWHEREVIEW*)view;
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UINT r;
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TRACE("%p %d %d %p\n", wv, row, col, stm );
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if( !wv->table )
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return ERROR_FUNCTION_FAILED;
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if( row > wv->row_count )
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return ERROR_NO_MORE_ITEMS;
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r = find_entry_in_hash(wv->reorder, row, &row);
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if (r != ERROR_SUCCESS)
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return r;
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return wv->table->ops->fetch_stream( wv->table, row, col, stm );
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}
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static UINT WHERE_get_row( struct tagMSIVIEW *view, UINT row, MSIRECORD **rec )
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{
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MSIWHEREVIEW *wv = (MSIWHEREVIEW *)view;
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UINT r;
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TRACE("%p %d %p\n", wv, row, rec );
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if (!wv->table)
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return ERROR_FUNCTION_FAILED;
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if (row > wv->row_count)
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return ERROR_NO_MORE_ITEMS;
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r = find_entry_in_hash(wv->reorder, row, &row);
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if (r != ERROR_SUCCESS)
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return r;
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return wv->table->ops->get_row(wv->table, row, rec);
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}
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static UINT WHERE_set_row( struct tagMSIVIEW *view, UINT row, MSIRECORD *rec, UINT mask )
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{
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MSIWHEREVIEW *wv = (MSIWHEREVIEW*)view;
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UINT r;
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TRACE("%p %d %p %08x\n", wv, row, rec, mask );
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if( !wv->table )
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return ERROR_FUNCTION_FAILED;
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if( row > wv->row_count )
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return ERROR_NO_MORE_ITEMS;
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r = find_entry_in_hash(wv->reorder, row, &row);
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if (r != ERROR_SUCCESS)
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return r;
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return wv->table->ops->set_row( wv->table, row, rec, mask );
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}
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static UINT WHERE_delete_row(struct tagMSIVIEW *view, UINT row)
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{
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MSIWHEREVIEW *wv = (MSIWHEREVIEW *)view;
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UINT r;
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TRACE("(%p %d)\n", view, row);
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if ( !wv->table )
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return ERROR_FUNCTION_FAILED;
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if ( row > wv->row_count )
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return ERROR_NO_MORE_ITEMS;
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r = find_entry_in_hash( wv->reorder, row, &row );
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if ( r != ERROR_SUCCESS )
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return r;
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return wv->table->ops->delete_row( wv->table, row );
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}
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static INT INT_evaluate_binary( INT lval, UINT op, INT rval )
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{
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switch( op )
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{
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case OP_EQ:
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return ( lval == rval );
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case OP_AND:
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return ( lval && rval );
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case OP_OR:
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return ( lval || rval );
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case OP_GT:
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return ( lval > rval );
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case OP_LT:
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return ( lval < rval );
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case OP_LE:
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return ( lval <= rval );
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case OP_GE:
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return ( lval >= rval );
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case OP_NE:
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return ( lval != rval );
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default:
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ERR("Unknown operator %d\n", op );
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}
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return 0;
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}
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static INT INT_evaluate_unary( INT lval, UINT op )
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{
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switch( op )
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{
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case OP_ISNULL:
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return ( !lval );
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case OP_NOTNULL:
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return ( lval );
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default:
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ERR("Unknown operator %d\n", op );
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}
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return 0;
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}
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static const WCHAR *STRING_evaluate( MSIWHEREVIEW *wv, UINT row,
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const struct expr *expr,
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const MSIRECORD *record )
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{
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UINT val = 0, r;
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switch( expr->type )
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{
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case EXPR_COL_NUMBER_STRING:
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r = wv->table->ops->fetch_int( wv->table, row, expr->u.col_number, &val );
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if( r != ERROR_SUCCESS )
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return NULL;
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return msi_string_lookup_id( wv->db->strings, val );
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case EXPR_SVAL:
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return expr->u.sval;
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case EXPR_WILDCARD:
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return MSI_RecordGetString( record, ++wv->rec_index );
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default:
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ERR("Invalid expression type\n");
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break;
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}
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return NULL;
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}
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static UINT STRCMP_Evaluate( MSIWHEREVIEW *wv, UINT row, const struct expr *cond,
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INT *val, const MSIRECORD *record )
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{
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int sr;
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const WCHAR *l_str, *r_str;
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l_str = STRING_evaluate( wv, row, cond->u.expr.left, record );
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r_str = STRING_evaluate( wv, row, cond->u.expr.right, record );
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if( l_str == r_str ||
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((!l_str || !*l_str) && (!r_str || !*r_str)) )
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sr = 0;
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else if( l_str && ! r_str )
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sr = 1;
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else if( r_str && ! l_str )
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sr = -1;
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else
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sr = strcmpW( l_str, r_str );
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*val = ( cond->u.expr.op == OP_EQ && ( sr == 0 ) ) ||
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( cond->u.expr.op == OP_NE && ( sr != 0 ) );
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return ERROR_SUCCESS;
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}
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static UINT WHERE_evaluate( MSIWHEREVIEW *wv, UINT row,
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struct expr *cond, INT *val, MSIRECORD *record )
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{
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UINT r, tval;
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INT lval, rval;
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if( !cond )
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return ERROR_SUCCESS;
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switch( cond->type )
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{
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case EXPR_COL_NUMBER:
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r = wv->table->ops->fetch_int( wv->table, row, cond->u.col_number, &tval );
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if( r != ERROR_SUCCESS )
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return r;
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*val = tval - 0x8000;
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return ERROR_SUCCESS;
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case EXPR_COL_NUMBER32:
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r = wv->table->ops->fetch_int( wv->table, row, cond->u.col_number, &tval );
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if( r != ERROR_SUCCESS )
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return r;
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*val = tval - 0x80000000;
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return r;
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case EXPR_UVAL:
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*val = cond->u.uval;
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return ERROR_SUCCESS;
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case EXPR_COMPLEX:
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r = WHERE_evaluate( wv, row, cond->u.expr.left, &lval, record );
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if( r != ERROR_SUCCESS )
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return r;
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r = WHERE_evaluate( wv, row, cond->u.expr.right, &rval, record );
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if( r != ERROR_SUCCESS )
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return r;
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*val = INT_evaluate_binary( lval, cond->u.expr.op, rval );
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return ERROR_SUCCESS;
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case EXPR_UNARY:
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r = wv->table->ops->fetch_int( wv->table, row, cond->u.expr.left->u.col_number, &tval );
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if( r != ERROR_SUCCESS )
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return r;
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*val = INT_evaluate_unary( tval, cond->u.expr.op );
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return ERROR_SUCCESS;
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case EXPR_STRCMP:
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return STRCMP_Evaluate( wv, row, cond, val, record );
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case EXPR_WILDCARD:
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*val = MSI_RecordGetInteger( record, ++wv->rec_index );
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return ERROR_SUCCESS;
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default:
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ERR("Invalid expression type\n");
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break;
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}
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return ERROR_SUCCESS;
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}
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static UINT WHERE_execute( struct tagMSIVIEW *view, MSIRECORD *record )
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{
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MSIWHEREVIEW *wv = (MSIWHEREVIEW*)view;
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UINT count = 0, r, i;
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INT val;
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MSIVIEW *table = wv->table;
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TRACE("%p %p\n", wv, record);
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if( !table )
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return ERROR_FUNCTION_FAILED;
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r = table->ops->execute( table, record );
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if( r != ERROR_SUCCESS )
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return r;
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r = table->ops->get_dimensions( table, &count, NULL );
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if( r != ERROR_SUCCESS )
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return r;
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free_hash_table(wv->reorder);
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wv->reorder = msi_alloc_zero(MSI_HASH_TABLE_SIZE * sizeof(MSIHASHENTRY *));
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if( !wv->reorder )
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return ERROR_OUTOFMEMORY;
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wv->row_count = 0;
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if (0) /* disable optimization, there's no guarantee that strings are in the string table */
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{
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if (wv->cond->type == EXPR_STRCMP)
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{
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MSIITERHANDLE handle = NULL;
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UINT row, value, col;
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struct expr *col_cond = wv->cond->u.expr.left;
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struct expr *val_cond = wv->cond->u.expr.right;
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/* swap conditionals */
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if (col_cond->type != EXPR_COL_NUMBER_STRING)
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{
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val_cond = wv->cond->u.expr.left;
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col_cond = wv->cond->u.expr.right;
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}
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if ((col_cond->type == EXPR_COL_NUMBER_STRING) && (val_cond->type == EXPR_SVAL))
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{
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col = col_cond->u.col_number;
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/* special case for "" - translate it into nil */
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if (!val_cond->u.sval[0])
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value = 0;
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else
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{
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r = msi_string2idW(wv->db->strings, val_cond->u.sval, &value);
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if (r != ERROR_SUCCESS)
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{
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TRACE("no id for %s, assuming it doesn't exist in the table\n", debugstr_w(wv->cond->u.expr.right->u.sval));
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return ERROR_SUCCESS;
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}
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}
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do
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{
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r = table->ops->find_matching_rows(table, col, value, &row, &handle);
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if (r == ERROR_SUCCESS)
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add_entry_to_hash(wv->reorder, wv->row_count++, row);
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} while (r == ERROR_SUCCESS);
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if (r == ERROR_NO_MORE_ITEMS)
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return ERROR_SUCCESS;
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else
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return r;
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}
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/* else fallback to slow case */
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}
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}
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for( i=0; i<count; i++ )
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{
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val = 0;
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wv->rec_index = 0;
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r = WHERE_evaluate( wv, i, wv->cond, &val, record );
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if( r != ERROR_SUCCESS )
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return r;
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if( val )
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add_entry_to_hash( wv->reorder, wv->row_count++, i );
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}
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return ERROR_SUCCESS;
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}
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static UINT WHERE_close( struct tagMSIVIEW *view )
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{
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MSIWHEREVIEW *wv = (MSIWHEREVIEW*)view;
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TRACE("%p\n", wv );
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if( !wv->table )
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return ERROR_FUNCTION_FAILED;
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return wv->table->ops->close( wv->table );
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}
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static UINT WHERE_get_dimensions( struct tagMSIVIEW *view, UINT *rows, UINT *cols )
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{
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MSIWHEREVIEW *wv = (MSIWHEREVIEW*)view;
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TRACE("%p %p %p\n", wv, rows, cols );
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if( !wv->table )
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return ERROR_FUNCTION_FAILED;
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if( rows )
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{
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if( !wv->reorder )
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return ERROR_FUNCTION_FAILED;
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*rows = wv->row_count;
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}
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return wv->table->ops->get_dimensions( wv->table, NULL, cols );
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}
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static UINT WHERE_get_column_info( struct tagMSIVIEW *view,
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UINT n, LPWSTR *name, UINT *type, BOOL *temporary,
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LPWSTR *table_name)
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{
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MSIWHEREVIEW *wv = (MSIWHEREVIEW*)view;
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TRACE("%p %d %p %p %p %p\n", wv, n, name, type, temporary, table_name );
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if( !wv->table )
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return ERROR_FUNCTION_FAILED;
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return wv->table->ops->get_column_info( wv->table, n, name,
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type, temporary, table_name );
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}
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static UINT WHERE_modify( struct tagMSIVIEW *view, MSIMODIFY eModifyMode,
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MSIRECORD *rec, UINT row )
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{
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MSIWHEREVIEW *wv = (MSIWHEREVIEW*)view;
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TRACE("%p %d %p\n", wv, eModifyMode, rec);
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find_entry_in_hash(wv->reorder, row - 1, &row);
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row++;
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return wv->table->ops->modify( wv->table, eModifyMode, rec, row );
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}
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static UINT WHERE_delete( struct tagMSIVIEW *view )
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{
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MSIWHEREVIEW *wv = (MSIWHEREVIEW*)view;
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TRACE("%p\n", wv );
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if( wv->table )
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wv->table->ops->delete( wv->table );
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wv->table = 0;
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free_hash_table(wv->reorder);
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wv->reorder = NULL;
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wv->row_count = 0;
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msiobj_release( &wv->db->hdr );
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msi_free( wv );
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return ERROR_SUCCESS;
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}
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static UINT WHERE_find_matching_rows( struct tagMSIVIEW *view, UINT col,
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|
UINT val, UINT *row, MSIITERHANDLE *handle )
|
|
{
|
|
MSIWHEREVIEW *wv = (MSIWHEREVIEW*)view;
|
|
UINT r;
|
|
|
|
TRACE("%p, %d, %u, %p\n", view, col, val, *handle);
|
|
|
|
if( !wv->table )
|
|
return ERROR_FUNCTION_FAILED;
|
|
|
|
r = wv->table->ops->find_matching_rows( wv->table, col, val, row, handle );
|
|
if (r != ERROR_SUCCESS)
|
|
return r;
|
|
|
|
if( *row > wv->row_count )
|
|
return ERROR_NO_MORE_ITEMS;
|
|
|
|
return find_entry_in_hash(wv->reorder, *row, row);
|
|
}
|
|
|
|
static UINT WHERE_sort(struct tagMSIVIEW *view, column_info *columns)
|
|
{
|
|
MSIWHEREVIEW *wv = (MSIWHEREVIEW *)view;
|
|
|
|
TRACE("%p %p\n", view, columns);
|
|
|
|
return wv->table->ops->sort(wv->table, columns);
|
|
}
|
|
|
|
static const MSIVIEWOPS where_ops =
|
|
{
|
|
WHERE_fetch_int,
|
|
WHERE_fetch_stream,
|
|
WHERE_get_row,
|
|
WHERE_set_row,
|
|
NULL,
|
|
WHERE_delete_row,
|
|
WHERE_execute,
|
|
WHERE_close,
|
|
WHERE_get_dimensions,
|
|
WHERE_get_column_info,
|
|
WHERE_modify,
|
|
WHERE_delete,
|
|
WHERE_find_matching_rows,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
WHERE_sort,
|
|
NULL,
|
|
};
|
|
|
|
static UINT WHERE_VerifyCondition( MSIDATABASE *db, MSIVIEW *table, struct expr *cond,
|
|
UINT *valid )
|
|
{
|
|
UINT r, val = 0;
|
|
|
|
switch( cond->type )
|
|
{
|
|
case EXPR_COLUMN:
|
|
r = VIEW_find_column( table, cond->u.column.column,
|
|
cond->u.column.table, &val );
|
|
if( r == ERROR_SUCCESS )
|
|
{
|
|
UINT type = 0;
|
|
r = table->ops->get_column_info( table, val, NULL, &type,
|
|
NULL, NULL );
|
|
if( r == ERROR_SUCCESS )
|
|
{
|
|
if (type&MSITYPE_STRING)
|
|
cond->type = EXPR_COL_NUMBER_STRING;
|
|
else if ((type&0xff) == 4)
|
|
cond->type = EXPR_COL_NUMBER32;
|
|
else
|
|
cond->type = EXPR_COL_NUMBER;
|
|
cond->u.col_number = val;
|
|
*valid = 1;
|
|
}
|
|
else
|
|
*valid = 0;
|
|
}
|
|
else
|
|
{
|
|
*valid = 0;
|
|
WARN("Couldn't find column %s.%s\n", debugstr_w( cond->u.column.table ), debugstr_w( cond->u.column.column ) );
|
|
}
|
|
break;
|
|
case EXPR_COMPLEX:
|
|
r = WHERE_VerifyCondition( db, table, cond->u.expr.left, valid );
|
|
if( r != ERROR_SUCCESS )
|
|
return r;
|
|
if( !*valid )
|
|
return ERROR_SUCCESS;
|
|
r = WHERE_VerifyCondition( db, table, cond->u.expr.right, valid );
|
|
if( r != ERROR_SUCCESS )
|
|
return r;
|
|
|
|
/* check the type of the comparison */
|
|
if( ( cond->u.expr.left->type == EXPR_SVAL ) ||
|
|
( cond->u.expr.left->type == EXPR_COL_NUMBER_STRING ) ||
|
|
( cond->u.expr.right->type == EXPR_SVAL ) ||
|
|
( cond->u.expr.right->type == EXPR_COL_NUMBER_STRING ) )
|
|
{
|
|
switch( cond->u.expr.op )
|
|
{
|
|
case OP_EQ:
|
|
case OP_NE:
|
|
break;
|
|
default:
|
|
*valid = FALSE;
|
|
return ERROR_INVALID_PARAMETER;
|
|
}
|
|
|
|
/* FIXME: check we're comparing a string to a column */
|
|
|
|
cond->type = EXPR_STRCMP;
|
|
}
|
|
|
|
break;
|
|
case EXPR_UNARY:
|
|
if ( cond->u.expr.left->type != EXPR_COLUMN )
|
|
{
|
|
*valid = FALSE;
|
|
return ERROR_INVALID_PARAMETER;
|
|
}
|
|
r = WHERE_VerifyCondition( db, table, cond->u.expr.left, valid );
|
|
if( r != ERROR_SUCCESS )
|
|
return r;
|
|
break;
|
|
case EXPR_IVAL:
|
|
*valid = 1;
|
|
cond->type = EXPR_UVAL;
|
|
cond->u.uval = cond->u.ival;
|
|
break;
|
|
case EXPR_WILDCARD:
|
|
*valid = 1;
|
|
break;
|
|
case EXPR_SVAL:
|
|
*valid = 1;
|
|
break;
|
|
default:
|
|
ERR("Invalid expression type\n");
|
|
*valid = 0;
|
|
break;
|
|
}
|
|
|
|
return ERROR_SUCCESS;
|
|
}
|
|
|
|
UINT WHERE_CreateView( MSIDATABASE *db, MSIVIEW **view, MSIVIEW *table,
|
|
struct expr *cond )
|
|
{
|
|
MSIWHEREVIEW *wv = NULL;
|
|
UINT count = 0, r, valid = 0;
|
|
|
|
TRACE("%p\n", table );
|
|
|
|
r = table->ops->get_dimensions( table, NULL, &count );
|
|
if( r != ERROR_SUCCESS )
|
|
{
|
|
ERR("can't get table dimensions\n");
|
|
return r;
|
|
}
|
|
|
|
if( cond )
|
|
{
|
|
r = WHERE_VerifyCondition( db, table, cond, &valid );
|
|
if( r != ERROR_SUCCESS )
|
|
return r;
|
|
if( !valid )
|
|
return ERROR_FUNCTION_FAILED;
|
|
}
|
|
|
|
wv = msi_alloc_zero( sizeof *wv );
|
|
if( !wv )
|
|
return ERROR_FUNCTION_FAILED;
|
|
|
|
/* fill the structure */
|
|
wv->view.ops = &where_ops;
|
|
msiobj_addref( &db->hdr );
|
|
wv->db = db;
|
|
wv->table = table;
|
|
wv->row_count = 0;
|
|
wv->reorder = NULL;
|
|
wv->cond = cond;
|
|
wv->rec_index = 0;
|
|
*view = (MSIVIEW*) wv;
|
|
|
|
return ERROR_SUCCESS;
|
|
}
|