mirror of
https://github.com/reactos/reactos.git
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402 lines
9.7 KiB
C
402 lines
9.7 KiB
C
/*
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* Implementation of the Microsoft Installer (msi.dll)
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*
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* Copyright 2004 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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/* below is the query interface to a table */
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typedef struct tagMSIINSERTVIEW
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{
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MSIVIEW view;
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MSIVIEW *table;
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MSIDATABASE *db;
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BOOL bIsTemp;
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MSIVIEW *sv;
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column_info *vals;
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} MSIINSERTVIEW;
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static UINT INSERT_fetch_int( struct tagMSIVIEW *view, UINT row, UINT col, UINT *val )
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{
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MSIINSERTVIEW *iv = (MSIINSERTVIEW*)view;
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TRACE("%p %d %d %p\n", iv, row, col, val );
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return ERROR_FUNCTION_FAILED;
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}
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/*
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* msi_query_merge_record
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*
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* Merge a value_list and a record to create a second record.
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* Replace wildcard entries in the valuelist with values from the record
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*/
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MSIRECORD *msi_query_merge_record( UINT fields, const column_info *vl, MSIRECORD *rec )
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{
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MSIRECORD *merged;
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DWORD wildcard_count = 1, i;
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merged = MSI_CreateRecord( fields );
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for( i=1; i <= fields; i++ )
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{
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if( !vl )
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{
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TRACE("Not enough elements in the list to insert\n");
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goto err;
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}
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switch( vl->val->type )
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{
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case EXPR_SVAL:
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TRACE("field %d -> %s\n", i, debugstr_w(vl->val->u.sval));
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MSI_RecordSetStringW( merged, i, vl->val->u.sval );
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break;
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case EXPR_IVAL:
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MSI_RecordSetInteger( merged, i, vl->val->u.ival );
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break;
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case EXPR_WILDCARD:
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if( !rec )
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goto err;
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MSI_RecordCopyField( rec, wildcard_count, merged, i );
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wildcard_count++;
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break;
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default:
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ERR("Unknown expression type %d\n", vl->val->type);
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}
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vl = vl->next;
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}
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return merged;
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err:
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msiobj_release( &merged->hdr );
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return NULL;
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}
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/* checks to see if the column order specified in the INSERT query
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* matches the column order of the table
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*/
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static BOOL msi_columns_in_order(MSIINSERTVIEW *iv, UINT col_count)
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{
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LPCWSTR a, b;
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UINT i;
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for (i = 1; i <= col_count; i++)
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{
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iv->sv->ops->get_column_info(iv->sv, i, &a, NULL, NULL, NULL);
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iv->table->ops->get_column_info(iv->table, i, &b, NULL, NULL, NULL);
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if (strcmpW( a, b )) return FALSE;
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}
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return TRUE;
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}
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/* rearranges the data in the record to be inserted based on column order,
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* and pads the record for any missing columns in the INSERT query
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*/
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static UINT msi_arrange_record(MSIINSERTVIEW *iv, MSIRECORD **values)
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{
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MSIRECORD *padded;
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UINT col_count, val_count;
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UINT r, i, colidx;
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LPCWSTR a, b;
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r = iv->table->ops->get_dimensions(iv->table, NULL, &col_count);
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if (r != ERROR_SUCCESS)
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return r;
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val_count = MSI_RecordGetFieldCount(*values);
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/* check to see if the columns are arranged already
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* to avoid unnecessary copying
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*/
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if (col_count == val_count && msi_columns_in_order(iv, col_count))
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return ERROR_SUCCESS;
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padded = MSI_CreateRecord(col_count);
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if (!padded)
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return ERROR_OUTOFMEMORY;
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for (colidx = 1; colidx <= val_count; colidx++)
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{
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r = iv->sv->ops->get_column_info(iv->sv, colidx, &a, NULL, NULL, NULL);
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if (r != ERROR_SUCCESS)
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goto err;
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for (i = 1; i <= col_count; i++)
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{
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r = iv->table->ops->get_column_info(iv->table, i, &b, NULL,
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NULL, NULL);
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if (r != ERROR_SUCCESS)
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goto err;
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if (!strcmpW( a, b ))
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{
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MSI_RecordCopyField(*values, colidx, padded, i);
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break;
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}
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}
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}
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msiobj_release(&(*values)->hdr);
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*values = padded;
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return ERROR_SUCCESS;
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err:
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msiobj_release(&padded->hdr);
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return r;
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}
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static BOOL row_has_null_primary_keys(MSIINSERTVIEW *iv, MSIRECORD *row)
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{
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UINT r, i, col_count, type;
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r = iv->table->ops->get_dimensions( iv->table, NULL, &col_count );
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if (r != ERROR_SUCCESS)
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return FALSE;
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for (i = 1; i <= col_count; i++)
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{
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r = iv->table->ops->get_column_info(iv->table, i, NULL, &type,
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NULL, NULL);
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if (r != ERROR_SUCCESS)
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return FALSE;
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if (!(type & MSITYPE_KEY))
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continue;
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if (MSI_RecordIsNull(row, i))
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return TRUE;
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}
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return FALSE;
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}
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static UINT INSERT_execute( struct tagMSIVIEW *view, MSIRECORD *record )
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{
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MSIINSERTVIEW *iv = (MSIINSERTVIEW*)view;
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UINT r, row = -1, col_count = 0;
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MSIVIEW *sv;
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MSIRECORD *values = NULL;
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TRACE("%p %p\n", iv, record );
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sv = iv->sv;
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if( !sv )
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return ERROR_FUNCTION_FAILED;
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r = sv->ops->execute( sv, 0 );
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TRACE("sv execute returned %x\n", r);
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if( r )
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return r;
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r = sv->ops->get_dimensions( sv, NULL, &col_count );
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if( r )
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goto err;
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/*
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* Merge the wildcard values into the list of values provided
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* in the query, and create a record containing both.
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*/
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values = msi_query_merge_record( col_count, iv->vals, record );
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if( !values )
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goto err;
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r = msi_arrange_record( iv, &values );
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if( r != ERROR_SUCCESS )
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goto err;
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/* rows with NULL primary keys are inserted at the beginning of the table */
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if( row_has_null_primary_keys( iv, values ) )
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row = 0;
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r = iv->table->ops->insert_row( iv->table, values, row, iv->bIsTemp );
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err:
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if( values )
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msiobj_release( &values->hdr );
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return r;
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}
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static UINT INSERT_close( struct tagMSIVIEW *view )
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{
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MSIINSERTVIEW *iv = (MSIINSERTVIEW*)view;
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MSIVIEW *sv;
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TRACE("%p\n", iv);
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sv = iv->sv;
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if( !sv )
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return ERROR_FUNCTION_FAILED;
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return sv->ops->close( sv );
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}
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static UINT INSERT_get_dimensions( struct tagMSIVIEW *view, UINT *rows, UINT *cols )
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{
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MSIINSERTVIEW *iv = (MSIINSERTVIEW*)view;
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MSIVIEW *sv;
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TRACE("%p %p %p\n", iv, rows, cols );
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sv = iv->sv;
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if( !sv )
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return ERROR_FUNCTION_FAILED;
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return sv->ops->get_dimensions( sv, rows, cols );
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}
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static UINT INSERT_get_column_info( struct tagMSIVIEW *view, UINT n, LPCWSTR *name,
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UINT *type, BOOL *temporary, LPCWSTR *table_name )
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{
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MSIINSERTVIEW *iv = (MSIINSERTVIEW*)view;
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MSIVIEW *sv;
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TRACE("%p %d %p %p %p %p\n", iv, n, name, type, temporary, table_name );
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sv = iv->sv;
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if( !sv )
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return ERROR_FUNCTION_FAILED;
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return sv->ops->get_column_info( sv, n, name, type, temporary, table_name );
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}
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static UINT INSERT_modify( struct tagMSIVIEW *view, MSIMODIFY eModifyMode, MSIRECORD *rec, UINT row)
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{
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MSIINSERTVIEW *iv = (MSIINSERTVIEW*)view;
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TRACE("%p %d %p\n", iv, eModifyMode, rec );
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return ERROR_FUNCTION_FAILED;
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}
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static UINT INSERT_delete( struct tagMSIVIEW *view )
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{
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MSIINSERTVIEW *iv = (MSIINSERTVIEW*)view;
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MSIVIEW *sv;
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TRACE("%p\n", iv );
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sv = iv->sv;
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if( sv )
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sv->ops->delete( sv );
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msiobj_release( &iv->db->hdr );
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msi_free( iv );
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return ERROR_SUCCESS;
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}
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static UINT INSERT_find_matching_rows( struct tagMSIVIEW *view, UINT col,
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UINT val, UINT *row, MSIITERHANDLE *handle )
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{
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TRACE("%p, %d, %u, %p\n", view, col, val, *handle);
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return ERROR_FUNCTION_FAILED;
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}
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static const MSIVIEWOPS insert_ops =
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{
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INSERT_fetch_int,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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INSERT_execute,
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INSERT_close,
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INSERT_get_dimensions,
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INSERT_get_column_info,
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INSERT_modify,
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INSERT_delete,
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INSERT_find_matching_rows,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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};
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static UINT count_column_info( const column_info *ci )
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{
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UINT n = 0;
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for ( ; ci; ci = ci->next )
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n++;
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return n;
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}
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UINT INSERT_CreateView( MSIDATABASE *db, MSIVIEW **view, LPCWSTR table,
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column_info *columns, column_info *values, BOOL temp )
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{
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MSIINSERTVIEW *iv = NULL;
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UINT r;
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MSIVIEW *tv = NULL, *sv = NULL;
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TRACE("%p\n", iv );
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/* there should be one value for each column */
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if ( count_column_info( columns ) != count_column_info(values) )
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return ERROR_BAD_QUERY_SYNTAX;
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r = TABLE_CreateView( db, table, &tv );
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if( r != ERROR_SUCCESS )
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return r;
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r = SELECT_CreateView( db, &sv, tv, columns );
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if( r != ERROR_SUCCESS )
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{
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if( tv )
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tv->ops->delete( tv );
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return r;
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}
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iv = msi_alloc_zero( sizeof *iv );
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if( !iv )
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return ERROR_FUNCTION_FAILED;
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/* fill the structure */
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iv->view.ops = &insert_ops;
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msiobj_addref( &db->hdr );
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iv->table = tv;
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iv->db = db;
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iv->vals = values;
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iv->bIsTemp = temp;
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iv->sv = sv;
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*view = (MSIVIEW*) iv;
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return ERROR_SUCCESS;
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}
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