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Sweden-Number/dlls/msi/table.c

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/*
* Implementation of the Microsoft Installer (msi.dll)
*
* Copyright 2002-2005 Mike McCormack 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
*/
#include <stdarg.h>
#include <assert.h>
#define COBJMACROS
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#include "windef.h"
#include "winbase.h"
#include "winerror.h"
#include "msi.h"
#include "msiquery.h"
#include "objbase.h"
#include "objidl.h"
#include "winnls.h"
#include "msipriv.h"
#include "query.h"
#include "wine/debug.h"
#include "wine/unicode.h"
WINE_DEFAULT_DEBUG_CHANNEL(msidb);
#define MSITABLE_HASH_TABLE_SIZE 37
#define LONG_STR_BYTES 3
typedef struct tagMSICOLUMNHASHENTRY
{
struct tagMSICOLUMNHASHENTRY *next;
UINT value;
UINT row;
} MSICOLUMNHASHENTRY;
typedef struct tagMSICOLUMNINFO
{
LPWSTR tablename;
UINT number;
LPWSTR colname;
UINT type;
UINT offset;
INT ref_count;
MSICOLUMNHASHENTRY **hash_table;
} MSICOLUMNINFO;
struct tagMSITABLE
{
BYTE **data;
UINT row_count;
BYTE **nonpersistent_data;
UINT nonpersistent_row_count;
struct list entry;
MSICOLUMNINFO *colinfo;
UINT col_count;
BOOL persistent;
INT ref_count;
WCHAR name[1];
};
typedef struct tagMSITRANSFORM {
struct list entry;
IStorage *stg;
} MSITRANSFORM;
static const WCHAR szStringData[] = {
'_','S','t','r','i','n','g','D','a','t','a',0 };
static const WCHAR szStringPool[] = {
'_','S','t','r','i','n','g','P','o','o','l',0 };
/* information for default tables */
static WCHAR szTables[] = { '_','T','a','b','l','e','s',0 };
static WCHAR szTable[] = { 'T','a','b','l','e',0 };
static WCHAR szName[] = { 'N','a','m','e',0 };
static WCHAR szColumns[] = { '_','C','o','l','u','m','n','s',0 };
static WCHAR szNumber[] = { 'N','u','m','b','e','r',0 };
static WCHAR szType[] = { 'T','y','p','e',0 };
/* These tables are written into (the .hash_table part).
* Do not mark them const.
*/
static MSICOLUMNINFO _Columns_cols[4] = {
{ szColumns, 1, szTable, MSITYPE_VALID | MSITYPE_STRING | MSITYPE_KEY | 64, 0 },
{ szColumns, 2, szNumber, MSITYPE_VALID | MSITYPE_KEY | 2, 2 },
{ szColumns, 3, szName, MSITYPE_VALID | MSITYPE_STRING | 64, 4 },
{ szColumns, 4, szType, MSITYPE_VALID | 2, 6 },
};
static MSICOLUMNINFO _Tables_cols[1] = {
{ szTables, 1, szName, MSITYPE_VALID | MSITYPE_STRING | 64, 0 },
};
#define MAX_STREAM_NAME 0x1f
static UINT table_get_column_info( MSIDATABASE *db, LPCWSTR name,
MSICOLUMNINFO **pcols, UINT *pcount );
static void table_calc_column_offsets( MSICOLUMNINFO *colinfo, DWORD count );
static UINT get_tablecolumns( MSIDATABASE *db,
LPCWSTR szTableName, MSICOLUMNINFO *colinfo, UINT *sz);
static void msi_free_colinfo( MSICOLUMNINFO *colinfo, UINT count );
void msi_table_set_strref(UINT bytes_per_strref)
{
_Columns_cols[0].offset = 0;
_Columns_cols[1].offset = bytes_per_strref;
_Columns_cols[2].offset = _Columns_cols[1].offset + sizeof(USHORT);
_Columns_cols[3].offset = _Columns_cols[2].offset + bytes_per_strref;
}
static inline UINT bytes_per_column( const MSICOLUMNINFO *col )
{
if( MSITYPE_IS_BINARY(col->type) )
return 2;
if( col->type & MSITYPE_STRING )
return _Columns_cols[1].offset;
if( (col->type & 0xff) > 4 )
ERR("Invalid column size!\n");
return col->type & 0xff;
}
static int utf2mime(int x)
{
if( (x>='0') && (x<='9') )
return x-'0';
if( (x>='A') && (x<='Z') )
return x-'A'+10;
if( (x>='a') && (x<='z') )
return x-'a'+10+26;
if( x=='.' )
return 10+26+26;
if( x=='_' )
return 10+26+26+1;
return -1;
}
LPWSTR encode_streamname(BOOL bTable, LPCWSTR in)
{
DWORD count = MAX_STREAM_NAME;
DWORD ch, next;
LPWSTR out, p;
if( !bTable )
count = lstrlenW( in )+2;
out = msi_alloc( count*sizeof(WCHAR) );
p = out;
if( bTable )
{
*p++ = 0x4840;
count --;
}
while( count -- )
{
ch = *in++;
if( !ch )
{
*p = ch;
return out;
}
if( ( ch < 0x80 ) && ( utf2mime(ch) >= 0 ) )
{
ch = utf2mime(ch) + 0x4800;
next = *in;
if( next && (next<0x80) )
{
next = utf2mime(next);
if( next >= 0 )
{
next += 0x3ffffc0;
ch += (next<<6);
in++;
}
}
}
*p++ = ch;
}
ERR("Failed to encode stream name (%s)\n",debugstr_w(in));
msi_free( out );
return NULL;
}
static int mime2utf(int x)
{
if( x<10 )
return x + '0';
if( x<(10+26))
return x - 10 + 'A';
if( x<(10+26+26))
return x - 10 - 26 + 'a';
if( x == (10+26+26) )
return '.';
return '_';
}
BOOL decode_streamname(LPCWSTR in, LPWSTR out)
{
WCHAR ch;
DWORD count = 0;
while ( (ch = *in++) )
{
if( (ch >= 0x3800 ) && (ch < 0x4840 ) )
{
if( ch >= 0x4800 )
ch = mime2utf(ch-0x4800);
else
{
ch -= 0x3800;
*out++ = mime2utf(ch&0x3f);
count++;
ch = mime2utf((ch>>6)&0x3f);
}
}
*out++ = ch;
count++;
}
*out = 0;
return count;
}
void enum_stream_names( IStorage *stg )
{
IEnumSTATSTG *stgenum = NULL;
HRESULT r;
STATSTG stat;
ULONG n, count;
WCHAR name[0x40];
r = IStorage_EnumElements( stg, 0, NULL, 0, &stgenum );
if( FAILED( r ) )
return;
n = 0;
while( 1 )
{
count = 0;
r = IEnumSTATSTG_Next( stgenum, 1, &stat, &count );
if( FAILED( r ) || !count )
break;
decode_streamname( stat.pwcsName, name );
TRACE("stream %2d -> %s %s\n", n,
debugstr_w(stat.pwcsName), debugstr_w(name) );
n++;
}
IEnumSTATSTG_Release( stgenum );
}
UINT read_stream_data( IStorage *stg, LPCWSTR stname, BOOL table,
BYTE **pdata, UINT *psz )
{
HRESULT r;
UINT ret = ERROR_FUNCTION_FAILED;
VOID *data;
ULONG sz, count;
IStream *stm = NULL;
STATSTG stat;
LPWSTR encname;
encname = encode_streamname(table, stname);
TRACE("%s -> %s\n",debugstr_w(stname),debugstr_w(encname));
r = IStorage_OpenStream(stg, encname, NULL,
STGM_READ | STGM_SHARE_EXCLUSIVE, 0, &stm);
msi_free( encname );
if( FAILED( r ) )
{
WARN("open stream failed r = %08x - empty table?\n", r);
return ret;
}
r = IStream_Stat(stm, &stat, STATFLAG_NONAME );
if( FAILED( r ) )
{
WARN("open stream failed r = %08x!\n", r);
goto end;
}
if( stat.cbSize.QuadPart >> 32 )
{
WARN("Too big!\n");
goto end;
}
sz = stat.cbSize.QuadPart;
data = msi_alloc( sz );
if( !data )
{
WARN("couldn't allocate memory r=%08x!\n", r);
ret = ERROR_NOT_ENOUGH_MEMORY;
goto end;
}
r = IStream_Read(stm, data, sz, &count );
if( FAILED( r ) || ( count != sz ) )
{
msi_free( data );
WARN("read stream failed r = %08x!\n", r);
goto end;
}
*pdata = data;
*psz = sz;
ret = ERROR_SUCCESS;
end:
IStream_Release( stm );
return ret;
}
UINT db_get_raw_stream( MSIDATABASE *db, LPCWSTR stname, IStream **stm )
{
LPWSTR encname;
HRESULT r;
encname = encode_streamname(FALSE, stname);
TRACE("%s -> %s\n",debugstr_w(stname),debugstr_w(encname));
r = IStorage_OpenStream(db->storage, encname, NULL,
STGM_READ | STGM_SHARE_EXCLUSIVE, 0, stm);
if( FAILED( r ) )
{
MSITRANSFORM *transform;
LIST_FOR_EACH_ENTRY( transform, &db->transforms, MSITRANSFORM, entry )
{
TRACE("looking for %s in transform storage\n", debugstr_w(stname) );
r = IStorage_OpenStream( transform->stg, encname, NULL,
STGM_READ | STGM_SHARE_EXCLUSIVE, 0, stm );
if (SUCCEEDED(r))
break;
}
}
msi_free( encname );
return SUCCEEDED(r) ? ERROR_SUCCESS : ERROR_FUNCTION_FAILED;
}
UINT read_raw_stream_data( MSIDATABASE *db, LPCWSTR stname,
USHORT **pdata, UINT *psz )
{
HRESULT r;
UINT ret = ERROR_FUNCTION_FAILED;
VOID *data;
ULONG sz, count;
IStream *stm = NULL;
STATSTG stat;
r = db_get_raw_stream( db, stname, &stm );
if( r != ERROR_SUCCESS)
return ret;
r = IStream_Stat(stm, &stat, STATFLAG_NONAME );
if( FAILED( r ) )
{
WARN("open stream failed r = %08x!\n", r);
goto end;
}
if( stat.cbSize.QuadPart >> 32 )
{
WARN("Too big!\n");
goto end;
}
sz = stat.cbSize.QuadPart;
data = msi_alloc( sz );
if( !data )
{
WARN("couldn't allocate memory r=%08x!\n", r);
ret = ERROR_NOT_ENOUGH_MEMORY;
goto end;
}
r = IStream_Read(stm, data, sz, &count );
if( FAILED( r ) || ( count != sz ) )
{
msi_free( data );
WARN("read stream failed r = %08x!\n", r);
goto end;
}
*pdata = data;
*psz = sz;
ret = ERROR_SUCCESS;
end:
IStream_Release( stm );
return ret;
}
UINT write_stream_data( IStorage *stg, LPCWSTR stname,
LPCVOID data, UINT sz, BOOL bTable )
{
HRESULT r;
UINT ret = ERROR_FUNCTION_FAILED;
ULONG count;
IStream *stm = NULL;
ULARGE_INTEGER size;
LARGE_INTEGER pos;
LPWSTR encname;
encname = encode_streamname(bTable, stname );
r = IStorage_OpenStream( stg, encname, NULL,
STGM_WRITE | STGM_SHARE_EXCLUSIVE, 0, &stm);
if( FAILED(r) )
{
r = IStorage_CreateStream( stg, encname,
STGM_WRITE | STGM_SHARE_EXCLUSIVE, 0, 0, &stm);
}
msi_free( encname );
if( FAILED( r ) )
{
WARN("open stream failed r = %08x\n", r);
return ret;
}
size.QuadPart = sz;
r = IStream_SetSize( stm, size );
if( FAILED( r ) )
{
WARN("Failed to SetSize\n");
goto end;
}
pos.QuadPart = 0;
r = IStream_Seek( stm, pos, STREAM_SEEK_SET, NULL );
if( FAILED( r ) )
{
WARN("Failed to Seek\n");
goto end;
}
if (sz)
{
r = IStream_Write(stm, data, sz, &count );
if( FAILED( r ) || ( count != sz ) )
{
WARN("Failed to Write\n");
goto end;
}
}
ret = ERROR_SUCCESS;
end:
IStream_Release( stm );
return ret;
}
static void free_table( MSITABLE *table )
{
int i;
for( i=0; i<table->row_count; i++ )
msi_free( table->data[i] );
msi_free( table->data );
for( i=0; i<table->nonpersistent_row_count; i++ )
msi_free( table->nonpersistent_data[i] );
msi_free( table->nonpersistent_data );
if( (table->colinfo != _Tables_cols) &&
(table->colinfo != _Columns_cols) )
{
msi_free_colinfo( table->colinfo, table->col_count );
msi_free( table->colinfo );
}
msi_free( table );
}
static UINT msi_table_get_row_size( const MSICOLUMNINFO *cols, UINT count )
{
const MSICOLUMNINFO *last_col = &cols[count-1];
if (!count)
return 0;
return last_col->offset + bytes_per_column( last_col );
}
/* add this table to the list of cached tables in the database */
static UINT read_table_from_storage( MSITABLE *t, IStorage *stg )
{
BYTE *rawdata = NULL;
UINT rawsize = 0, i, j, row_size = 0;
TRACE("%s\n",debugstr_w(t->name));
row_size = msi_table_get_row_size( t->colinfo, t->col_count );
/* if we can't read the table, just assume that it's empty */
read_stream_data( stg, t->name, TRUE, &rawdata, &rawsize );
if( !rawdata )
return ERROR_SUCCESS;
TRACE("Read %d bytes\n", rawsize );
if( rawsize % row_size )
{
WARN("Table size is invalid %d/%d\n", rawsize, row_size );
goto err;
}
t->row_count = rawsize / row_size;
t->data = msi_alloc_zero( t->row_count * sizeof (USHORT*) );
if( !t->data )
goto err;
/* transpose all the data */
TRACE("Transposing data from %d rows\n", t->row_count );
for( i=0; i<t->row_count; i++ )
{
t->data[i] = msi_alloc( row_size );
if( !t->data[i] )
goto err;
for( j=0; j<t->col_count; j++ )
{
UINT ofs = t->colinfo[j].offset;
UINT n = bytes_per_column( &t->colinfo[j] );
UINT k;
if ( n != 2 && n != 3 && n != 4 )
{
ERR("oops - unknown column width %d\n", n);
goto err;
}
for ( k = 0; k < n; k++ )
t->data[i][ofs + k] = rawdata[ofs*t->row_count + i * n + k];
}
}
msi_free( rawdata );
return ERROR_SUCCESS;
err:
msi_free( rawdata );
return ERROR_FUNCTION_FAILED;
}
void free_cached_tables( MSIDATABASE *db )
{
while( !list_empty( &db->tables ) )
{
MSITABLE *t = LIST_ENTRY( list_head( &db->tables ), MSITABLE, entry );
list_remove( &t->entry );
free_table( t );
}
}
static MSITABLE *find_cached_table( MSIDATABASE *db, LPCWSTR name )
{
MSITABLE *t;
LIST_FOR_EACH_ENTRY( t, &db->tables, MSITABLE, entry )
if( !lstrcmpW( name, t->name ) )
return t;
return NULL;
}
static UINT table_get_column_info( MSIDATABASE *db, LPCWSTR name, MSICOLUMNINFO **pcols, UINT *pcount )
{
UINT r, column_count = 0;
MSICOLUMNINFO *columns;
/* get the number of columns in this table */
column_count = 0;
r = get_tablecolumns( db, name, NULL, &column_count );
if( r != ERROR_SUCCESS )
return r;
/* if there's no columns, there's no table */
if( column_count == 0 )
return ERROR_INVALID_PARAMETER;
TRACE("Table %s found\n", debugstr_w(name) );
columns = msi_alloc( column_count*sizeof (MSICOLUMNINFO) );
if( !columns )
return ERROR_FUNCTION_FAILED;
r = get_tablecolumns( db, name, columns, &column_count );
if( r != ERROR_SUCCESS )
{
msi_free( columns );
return ERROR_FUNCTION_FAILED;
}
*pcols = columns;
*pcount = column_count;
return r;
}
UINT msi_create_table( MSIDATABASE *db, LPCWSTR name, column_info *col_info,
BOOL persistent, MSITABLE **table_ret)
{
UINT r, nField;
MSIVIEW *tv = NULL;
MSIRECORD *rec = NULL;
column_info *col;
MSITABLE *table;
UINT i;
/* only add tables that don't exist already */
if( TABLE_Exists(db, name ) )
{
WARN("table %s exists\n", debugstr_w(name));
return ERROR_BAD_QUERY_SYNTAX;
}
table = msi_alloc( sizeof (MSITABLE) + lstrlenW(name)*sizeof (WCHAR) );
if( !table )
return ERROR_FUNCTION_FAILED;
table->ref_count = 1;
table->row_count = 0;
table->data = NULL;
table->nonpersistent_row_count = 0;
table->nonpersistent_data = NULL;
table->colinfo = NULL;
table->col_count = 0;
table->persistent = persistent;
lstrcpyW( table->name, name );
for( col = col_info; col; col = col->next )
table->col_count++;
table->colinfo = msi_alloc( table->col_count * sizeof(MSICOLUMNINFO) );
if (!table->colinfo)
{
free_table( table );
return ERROR_FUNCTION_FAILED;
}
for( i = 0, col = col_info; col; i++, col = col->next )
{
table->colinfo[ i ].tablename = strdupW( col->table );
table->colinfo[ i ].number = i + 1;
table->colinfo[ i ].colname = strdupW( col->column );
table->colinfo[ i ].type = col->type;
table->colinfo[ i ].offset = 0;
table->colinfo[ i ].ref_count = 0;
table->colinfo[ i ].hash_table = NULL;
}
table_calc_column_offsets( table->colinfo, table->col_count);
r = TABLE_CreateView( db, szTables, &tv );
TRACE("CreateView returned %x\n", r);
if( r )
{
free_table( table );
return r;
}
r = tv->ops->execute( tv, 0 );
TRACE("tv execute returned %x\n", r);
if( r )
goto err;
rec = MSI_CreateRecord( 1 );
if( !rec )
goto err;
r = MSI_RecordSetStringW( rec, 1, name );
if( r )
goto err;
r = tv->ops->insert_row( tv, rec, !persistent );
TRACE("insert_row returned %x\n", r);
if( r )
goto err;
tv->ops->delete( tv );
tv = NULL;
msiobj_release( &rec->hdr );
rec = NULL;
if( persistent )
{
/* add each column to the _Columns table */
r = TABLE_CreateView( db, szColumns, &tv );
if( r )
return r;
r = tv->ops->execute( tv, 0 );
TRACE("tv execute returned %x\n", r);
if( r )
goto err;
rec = MSI_CreateRecord( 4 );
if( !rec )
goto err;
r = MSI_RecordSetStringW( rec, 1, name );
if( r )
goto err;
/*
* need to set the table, column number, col name and type
* for each column we enter in the table
*/
nField = 1;
for( col = col_info; col; col = col->next )
{
r = MSI_RecordSetInteger( rec, 2, nField );
if( r )
goto err;
r = MSI_RecordSetStringW( rec, 3, col->column );
if( r )
goto err;
r = MSI_RecordSetInteger( rec, 4, col->type );
if( r )
goto err;
r = tv->ops->insert_row( tv, rec, FALSE );
if( r )
goto err;
nField++;
}
if( !col )
r = ERROR_SUCCESS;
}
err:
if (rec)
msiobj_release( &rec->hdr );
/* FIXME: remove values from the string table on error */
if( tv )
tv->ops->delete( tv );
if (r == ERROR_SUCCESS)
{
list_add_head( &db->tables, &table->entry );
*table_ret = table;
}
else
free_table( table );
return r;
}
static UINT get_table( MSIDATABASE *db, LPCWSTR name, MSITABLE **table_ret )
{
MSITABLE *table;
UINT r;
/* first, see if the table is cached */
table = find_cached_table( db, name );
if( table )
{
*table_ret = table;
return ERROR_SUCCESS;
}
/* nonexistent tables should be interpreted as empty tables */
table = msi_alloc( sizeof (MSITABLE) + lstrlenW(name)*sizeof (WCHAR) );
if( !table )
return ERROR_FUNCTION_FAILED;
table->row_count = 0;
table->data = NULL;
table->nonpersistent_row_count = 0;
table->nonpersistent_data = NULL;
table->colinfo = NULL;
table->col_count = 0;
table->persistent = TRUE;
lstrcpyW( table->name, name );
/* these two tables are special - we know the column types already */
if( !lstrcmpW( name, szColumns ) )
{
table->colinfo = _Columns_cols;
table->col_count = sizeof(_Columns_cols)/sizeof(_Columns_cols[0]);
}
else if( !lstrcmpW( name, szTables ) )
{
table->colinfo = _Tables_cols;
table->col_count = sizeof(_Tables_cols)/sizeof(_Tables_cols[0]);
}
else
{
r = table_get_column_info( db, name, &table->colinfo, &table->col_count);
if (r != ERROR_SUCCESS)
{
free_table ( table );
return r;
}
}
r = read_table_from_storage( table, db->storage );
if( r != ERROR_SUCCESS )
{
free_table( table );
return r;
}
list_add_head( &db->tables, &table->entry );
*table_ret = table;
return ERROR_SUCCESS;
}
static UINT save_table( MSIDATABASE *db, const MSITABLE *t )
{
BYTE *rawdata = NULL, *p;
UINT rawsize, r, i, j, row_size;
/* Nothing to do for non-persistent tables */
if( !t->persistent )
return ERROR_SUCCESS;
TRACE("Saving %s\n", debugstr_w( t->name ) );
row_size = msi_table_get_row_size( t->colinfo, t->col_count );
rawsize = t->row_count * row_size;
rawdata = msi_alloc_zero( rawsize );
if( !rawdata )
{
r = ERROR_NOT_ENOUGH_MEMORY;
goto err;
}
p = rawdata;
for( i=0; i<t->col_count; i++ )
{
for( j=0; j<t->row_count; j++ )
{
UINT offset = t->colinfo[i].offset;
*p++ = t->data[j][offset];
*p++ = t->data[j][offset + 1];
if( 4 == bytes_per_column( &t->colinfo[i] ) )
{
*p++ = t->data[j][offset + 2];
*p++ = t->data[j][offset + 3];
}
}
}
TRACE("writing %d bytes\n", rawsize);
r = write_stream_data( db->storage, t->name, rawdata, rawsize, TRUE );
err:
msi_free( rawdata );
return r;
}
static void table_calc_column_offsets( MSICOLUMNINFO *colinfo, DWORD count )
{
DWORD i;
for( i=0; colinfo && (i<count); i++ )
{
assert( (i+1) == colinfo[ i ].number );
if (i)
colinfo[i].offset = colinfo[ i - 1 ].offset
+ bytes_per_column( &colinfo[ i - 1 ] );
else
colinfo[i].offset = 0;
TRACE("column %d is [%s] with type %08x ofs %d\n",
colinfo[i].number, debugstr_w(colinfo[i].colname),
colinfo[i].type, colinfo[i].offset);
}
}
static UINT get_defaulttablecolumns( LPCWSTR name, MSICOLUMNINFO *colinfo, UINT *sz)
{
const MSICOLUMNINFO *p;
DWORD i, n;
TRACE("%s\n", debugstr_w(name));
if (!lstrcmpW( name, szTables ))
{
p = _Tables_cols;
n = 1;
}
else if (!lstrcmpW( name, szColumns ))
{
p = _Columns_cols;
n = 4;
}
else
return ERROR_FUNCTION_FAILED;
/* duplicate the string data so we can free it in msi_free_colinfo */
for (i=0; i<n; i++)
{
if (colinfo && (i < *sz) )
{
memcpy( &colinfo[i], &p[i], sizeof(MSICOLUMNINFO) );
colinfo[i].tablename = strdupW( p[i].tablename );
colinfo[i].colname = strdupW( p[i].colname );
}
if( colinfo && (i >= *sz) )
break;
}
table_calc_column_offsets( colinfo, n );
*sz = n;
return ERROR_SUCCESS;
}
static void msi_free_colinfo( MSICOLUMNINFO *colinfo, UINT count )
{
UINT i;
for( i=0; i<count; i++ )
{
msi_free( colinfo[i].tablename );
msi_free( colinfo[i].colname );
msi_free( colinfo[i].hash_table );
}
}
static LPWSTR msi_makestring( const MSIDATABASE *db, UINT stringid)
{
return strdupW(msi_string_lookup_id( db->strings, stringid ));
}
static UINT read_table_int(BYTE *const *data, UINT row, UINT col, UINT bytes)
{
UINT ret = 0, i;
for (i = 0; i < bytes; i++)
ret += (data[row][col + i] << i * 8);
return ret;
}
static UINT get_tablecolumns( MSIDATABASE *db,
LPCWSTR szTableName, MSICOLUMNINFO *colinfo, UINT *sz)
{
UINT r, i, n=0, table_id, count, maxcount = *sz;
MSITABLE *table = NULL;
TRACE("%s\n", debugstr_w(szTableName));
/* first check if there is a default table with that name */
r = get_defaulttablecolumns( szTableName, colinfo, sz );
if( ( r == ERROR_SUCCESS ) && *sz )
return r;
r = get_table( db, szColumns, &table );
if( r != ERROR_SUCCESS )
{
ERR("couldn't load _Columns table\n");
return ERROR_FUNCTION_FAILED;
}
/* convert table and column names to IDs from the string table */
r = msi_string2idW( db->strings, szTableName, &table_id );
if( r != ERROR_SUCCESS )
{
WARN("Couldn't find id for %s\n", debugstr_w(szTableName));
return r;
}
TRACE("Table id is %d, row count is %d\n", table_id, table->row_count);
/* Note: _Columns table doesn't have non-persistent data */
/* if maxcount is non-zero, assume it's exactly right for this table */
memset( colinfo, 0, maxcount*sizeof(*colinfo) );
count = table->row_count;
for( i=0; i<count; i++ )
{
if( read_table_int(table->data, i, 0, db->bytes_per_strref) != table_id )
continue;
if( colinfo )
{
UINT id = read_table_int(table->data, i, _Columns_cols[2].offset, db->bytes_per_strref);
UINT col = read_table_int(table->data, i, _Columns_cols[1].offset, sizeof(USHORT)) - (1<<15);
/* check the column number is in range */
if (col<1 || col>maxcount)
{
ERR("column %d out of range\n", col);
continue;
}
/* check if this column was already set */
if (colinfo[ col - 1 ].number)
{
ERR("duplicate column %d\n", col);
continue;
}
colinfo[ col - 1 ].tablename = msi_makestring( db, table_id );
colinfo[ col - 1 ].number = col;
colinfo[ col - 1 ].colname = msi_makestring( db, id );
colinfo[ col - 1 ].type = read_table_int(table->data, i, _Columns_cols[3].offset, sizeof(USHORT)) - (1<<15);
colinfo[ col - 1 ].offset = 0;
colinfo[ col - 1 ].ref_count = 0;
colinfo[ col - 1 ].hash_table = NULL;
}
n++;
}
TRACE("%s has %d columns\n", debugstr_w(szTableName), n);
if (colinfo && n != maxcount)
{
ERR("missing column in table %s\n", debugstr_w(szTableName));
msi_free_colinfo(colinfo, maxcount );
return ERROR_FUNCTION_FAILED;
}
table_calc_column_offsets( colinfo, n );
*sz = n;
return ERROR_SUCCESS;
}
static void msi_update_table_columns( MSIDATABASE *db, LPCWSTR name )
{
MSITABLE *table;
UINT size, offset, old_count;
int n;
table = find_cached_table( db, name );
old_count = table->col_count;
msi_free( table->colinfo );
table_get_column_info( db, name, &table->colinfo, &table->col_count );
size = msi_table_get_row_size( table->colinfo, table->col_count );
offset = table->colinfo[table->col_count - 1].offset;
for ( n = 0; n < table->row_count; n++ )
{
table->data[n] = msi_realloc( table->data[n], size );
if (old_count < table->col_count)
memset( &table->data[n][offset], 0, size - offset );
}
}
/* try to find the table name in the _Tables table */
BOOL TABLE_Exists( MSIDATABASE *db, LPCWSTR name )
{
UINT r, table_id = 0, i, count;
MSITABLE *table = NULL;
if( !lstrcmpW( name, szTables ) )
return TRUE;
if( !lstrcmpW( name, szColumns ) )
return TRUE;
r = msi_string2idW( db->strings, name, &table_id );
if( r != ERROR_SUCCESS )
{
TRACE("Couldn't find id for %s\n", debugstr_w(name));
return FALSE;
}
r = get_table( db, szTables, &table );
if( r != ERROR_SUCCESS )
{
ERR("table %s not available\n", debugstr_w(szTables));
return FALSE;
}
count = table->row_count;
for( i=0; i<count; i++ )
if( table->data[ i ][ 0 ] == table_id )
break;
if (i!=count)
return TRUE;
count = table->nonpersistent_row_count;
for( i=0; i<count; i++ )
if( table->nonpersistent_data[ i ][ 0 ] == table_id )
break;
if (i!=count)
return TRUE;
TRACE("Searched %d tables, but %d was not found\n", count, table_id );
return FALSE;
}
/* below is the query interface to a table */
typedef struct tagMSITABLEVIEW
{
MSIVIEW view;
MSIDATABASE *db;
MSITABLE *table;
MSICOLUMNINFO *columns;
UINT num_cols;
UINT row_size;
WCHAR name[1];
} MSITABLEVIEW;
static UINT TABLE_fetch_int( struct tagMSIVIEW *view, UINT row, UINT col, UINT *val )
{
MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
UINT offset, n;
BYTE **data;
if( !tv->table )
return ERROR_INVALID_PARAMETER;
if( (col==0) || (col>tv->num_cols) )
return ERROR_INVALID_PARAMETER;
/* how many rows are there ? */
if( row >= tv->table->row_count + tv->table->nonpersistent_row_count )
return ERROR_NO_MORE_ITEMS;
if( tv->columns[col-1].offset >= tv->row_size )
{
ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
ERR("%p %p\n", tv, tv->columns );
return ERROR_FUNCTION_FAILED;
}
if (row >= tv->table->row_count)
{
row -= tv->table->row_count;
data = tv->table->nonpersistent_data;
}
else
data = tv->table->data;
n = bytes_per_column( &tv->columns[col-1] );
if (n != 2 && n != 3 && n != 4)
{
ERR("oops! what is %d bytes per column?\n", n );
return ERROR_FUNCTION_FAILED;
}
offset = tv->columns[col-1].offset;
*val = read_table_int(data, row, offset, n);
/* TRACE("Data [%d][%d] = %d\n", row, col, *val ); */
return ERROR_SUCCESS;
}
/*
* We need a special case for streams, as we need to reference column with
* the name of the stream in the same table, and the table name
* which may not be available at higher levels of the query
*/
static UINT TABLE_fetch_stream( struct tagMSIVIEW *view, UINT row, UINT col, IStream **stm )
{
MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
UINT ival = 0, refcol = 0, r;
LPCWSTR sval;
LPWSTR full_name;
DWORD len;
static const WCHAR szDot[] = { '.', 0 };
WCHAR number[0x20];
if( !view->ops->fetch_int )
return ERROR_INVALID_PARAMETER;
/*
* The column marked with the type stream data seems to have a single number
* which references the column containing the name of the stream data
*
* Fetch the column to reference first.
*/
r = view->ops->fetch_int( view, row, col, &ival );
if( r != ERROR_SUCCESS )
return r;
/* check the column value is in range */
if (ival < 0 || ival > tv->num_cols || ival == col)
{
ERR("bad column ref (%u) for stream\n", ival);
return ERROR_FUNCTION_FAILED;
}
if ( tv->columns[ival - 1].type & MSITYPE_STRING )
{
/* now get the column with the name of the stream */
r = view->ops->fetch_int( view, row, ival, &refcol );
if ( r != ERROR_SUCCESS )
return r;
/* lookup the string value from the string table */
sval = msi_string_lookup_id( tv->db->strings, refcol );
if ( !sval )
return ERROR_INVALID_PARAMETER;
}
else
{
static const WCHAR fmt[] = { '%','d',0 };
sprintfW( number, fmt, ival );
sval = number;
}
len = lstrlenW( tv->name ) + 2 + lstrlenW( sval );
full_name = msi_alloc( len*sizeof(WCHAR) );
lstrcpyW( full_name, tv->name );
lstrcatW( full_name, szDot );
lstrcatW( full_name, sval );
r = db_get_raw_stream( tv->db, full_name, stm );
if( r )
ERR("fetching stream %s, error = %d\n",debugstr_w(full_name), r);
msi_free( full_name );
return r;
}
static UINT TABLE_set_int( MSITABLEVIEW *tv, UINT row, UINT col, UINT val )
{
UINT offset, n, i;
BYTE **data;
if( !tv->table )
return ERROR_INVALID_PARAMETER;
if( (col==0) || (col>tv->num_cols) )
return ERROR_INVALID_PARAMETER;
if( row >= tv->table->row_count + tv->table->nonpersistent_row_count )
return ERROR_INVALID_PARAMETER;
if( tv->columns[col-1].offset >= tv->row_size )
{
ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
ERR("%p %p\n", tv, tv->columns );
return ERROR_FUNCTION_FAILED;
}
msi_free( tv->columns[col-1].hash_table );
tv->columns[col-1].hash_table = NULL;
if (row >= tv->table->row_count)
{
row -= tv->table->row_count;
data = tv->table->nonpersistent_data;
}
else
data = tv->table->data;
n = bytes_per_column( &tv->columns[col-1] );
if ( n != 2 && n != 3 && n != 4 )
{
ERR("oops! what is %d bytes per column?\n", n );
return ERROR_FUNCTION_FAILED;
}
offset = tv->columns[col-1].offset;
for ( i = 0; i < n; i++ )
data[row][offset + i] = (val >> i * 8) & 0xff;
return ERROR_SUCCESS;
}
static UINT TABLE_get_row( struct tagMSIVIEW *view, UINT row, MSIRECORD **rec )
{
MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
if (!tv->table)
return ERROR_INVALID_PARAMETER;
return msi_view_get_row(tv->db, view, row, rec);
}
static UINT TABLE_set_row( struct tagMSIVIEW *view, UINT row, MSIRECORD *rec, UINT mask )
{
MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
UINT i, val, r = ERROR_SUCCESS;
if ( !tv->table )
return ERROR_INVALID_PARAMETER;
/* test if any of the mask bits are invalid */
if ( mask >= (1<<tv->num_cols) )
return ERROR_INVALID_PARAMETER;
for ( i = 0; i < tv->num_cols; i++ )
{
BOOL persistent;
/* only update the fields specified in the mask */
if ( !(mask&(1<<i)) )
continue;
/* if row >= tv->table->row_count then it is a non-persistent row */
persistent = tv->table->persistent && (row < tv->table->row_count);
/* FIXME: should we allow updating keys? */
val = 0;
if ( !MSI_RecordIsNull( rec, i + 1 ) )
{
if ( MSITYPE_IS_BINARY(tv->columns[ i ].type) )
{
val = 1; /* refers to the first key column */
}
else if ( tv->columns[i].type & MSITYPE_STRING )
{
LPCWSTR sval = MSI_RecordGetString( rec, i + 1 );
UINT ival, x;
r = msi_string2idW(tv->db->strings, sval, &ival);
if (r == ERROR_SUCCESS)
{
TABLE_fetch_int(&tv->view, row, i + 1, &x);
if (ival == x)
continue;
}
val = msi_addstringW( tv->db->strings, 0, sval, -1, 1,
persistent ? StringPersistent : StringNonPersistent );
}
else if ( 2 == bytes_per_column( &tv->columns[ i ] ) )
{
val = 0x8000 + MSI_RecordGetInteger( rec, i + 1 );
if ( val & 0xffff0000 )
{
ERR("field %u value %d out of range\n", i+1, val - 0x8000 );
return ERROR_FUNCTION_FAILED;
}
}
else
{
INT ival = MSI_RecordGetInteger( rec, i + 1 );
val = ival ^ 0x80000000;
}
}
r = TABLE_set_int( tv, row, i+1, val );
if ( r != ERROR_SUCCESS )
break;
}
return r;
}
static UINT table_create_new_row( struct tagMSIVIEW *view, UINT *num, BOOL temporary )
{
MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
BYTE **p, *row;
UINT sz;
BYTE ***data_ptr;
UINT *row_count;
TRACE("%p %s\n", view, temporary ? "TRUE" : "FALSE");
if( !tv->table )
return ERROR_INVALID_PARAMETER;
row = msi_alloc_zero( tv->row_size );
if( !row )
return ERROR_NOT_ENOUGH_MEMORY;
if( temporary )
{
row_count = &tv->table->nonpersistent_row_count;
data_ptr = &tv->table->nonpersistent_data;
*num = tv->table->row_count + tv->table->nonpersistent_row_count;
}
else
{
row_count = &tv->table->row_count;
data_ptr = &tv->table->data;
*num = tv->table->row_count;
}
sz = (*row_count + 1) * sizeof (BYTE*);
if( *data_ptr )
p = msi_realloc( *data_ptr, sz );
else
p = msi_alloc( sz );
if( !p )
{
msi_free( row );
return ERROR_NOT_ENOUGH_MEMORY;
}
*data_ptr = p;
(*data_ptr)[*row_count] = row;
(*row_count)++;
return ERROR_SUCCESS;
}
static UINT TABLE_execute( struct tagMSIVIEW *view, MSIRECORD *record )
{
MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
TRACE("%p %p\n", tv, record);
TRACE("There are %d columns\n", tv->num_cols );
return ERROR_SUCCESS;
}
static UINT TABLE_close( struct tagMSIVIEW *view )
{
TRACE("%p\n", view );
return ERROR_SUCCESS;
}
static UINT TABLE_get_dimensions( struct tagMSIVIEW *view, UINT *rows, UINT *cols)
{
MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
TRACE("%p %p %p\n", view, rows, cols );
if( cols )
*cols = tv->num_cols;
if( rows )
{
if( !tv->table )
return ERROR_INVALID_PARAMETER;
*rows = tv->table->row_count + tv->table->nonpersistent_row_count;
}
return ERROR_SUCCESS;
}
static UINT TABLE_get_column_info( struct tagMSIVIEW *view,
UINT n, LPWSTR *name, UINT *type )
{
MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
TRACE("%p %d %p %p\n", tv, n, name, type );
if( ( n == 0 ) || ( n > tv->num_cols ) )
return ERROR_INVALID_PARAMETER;
if( name )
{
*name = strdupW( tv->columns[n-1].colname );
if( !*name )
return ERROR_FUNCTION_FAILED;
}
if( type )
*type = tv->columns[n-1].type;
return ERROR_SUCCESS;
}
static UINT msi_table_find_row( MSITABLEVIEW *tv, MSIRECORD *rec, UINT *row );
static UINT table_validate_new( MSITABLEVIEW *tv, MSIRECORD *rec )
{
UINT r, row, i;
/* check there's no null values where they're not allowed */
for( i = 0; i < tv->num_cols; i++ )
{
if ( tv->columns[i].type & MSITYPE_NULLABLE )
continue;
if ( MSITYPE_IS_BINARY(tv->columns[i].type) )
TRACE("skipping binary column\n");
else if ( tv->columns[i].type & MSITYPE_STRING )
{
LPCWSTR str;
str = MSI_RecordGetString( rec, i+1 );
if (str == NULL || str[0] == 0)
return ERROR_INVALID_DATA;
}
else
{
UINT n;
n = MSI_RecordGetInteger( rec, i+1 );
if (n == MSI_NULL_INTEGER)
return ERROR_INVALID_DATA;
}
}
/* check there's no duplicate keys */
r = msi_table_find_row( tv, rec, &row );
if (r == ERROR_SUCCESS)
return ERROR_FUNCTION_FAILED;
return ERROR_SUCCESS;
}
static UINT TABLE_insert_row( struct tagMSIVIEW *view, MSIRECORD *rec, BOOL temporary )
{
MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
UINT r, row = -1;
TRACE("%p %p %s\n", tv, rec, temporary ? "TRUE" : "FALSE" );
/* check that the key is unique - can we find a matching row? */
r = table_validate_new( tv, rec );
if( r != ERROR_SUCCESS )
return ERROR_FUNCTION_FAILED;
r = table_create_new_row( view, &row, temporary );
TRACE("insert_row returned %08x\n", r);
if( r != ERROR_SUCCESS )
return r;
return TABLE_set_row( view, row, rec, (1<<tv->num_cols) - 1 );
}
static UINT TABLE_delete_row( struct tagMSIVIEW *view, UINT row )
{
MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
UINT r, num_rows, num_cols, i;
TRACE("%p %d\n", tv, row);
if ( !tv->table )
return ERROR_INVALID_PARAMETER;
r = TABLE_get_dimensions( view, &num_rows, &num_cols );
if ( r != ERROR_SUCCESS )
return r;
if ( row >= num_rows )
return ERROR_FUNCTION_FAILED;
tv->table->row_count--;
if ( row == num_rows - 1 )
return ERROR_SUCCESS;
for (i = row + 1; i < num_rows; i++)
memcpy(tv->table->data[i - 1], tv->table->data[i], tv->row_size);
return ERROR_SUCCESS;
}
static UINT msi_table_update(struct tagMSIVIEW *view, MSIRECORD *rec, UINT row)
{
MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
UINT r, new_row;
/* FIXME: MsiViewFetch should set rec index 0 to some ID that
* sets the fetched record apart from other records
*/
if (!tv->table)
return ERROR_INVALID_PARAMETER;
r = msi_table_find_row(tv, rec, &new_row);
if (r != ERROR_SUCCESS)
{
ERR("can't find row to modify\n");
return ERROR_FUNCTION_FAILED;
}
/* the row cannot be changed */
if (row != new_row + 1)
return ERROR_FUNCTION_FAILED;
return TABLE_set_row(view, new_row, rec, (1 << tv->num_cols) - 1);
}
static UINT modify_delete_row( struct tagMSIVIEW *view, MSIRECORD *rec )
{
MSITABLEVIEW *tv = (MSITABLEVIEW *)view;
UINT row, r;
r = msi_table_find_row(tv, rec, &row);
if (r != ERROR_SUCCESS)
return r;
return TABLE_delete_row(view, row);
}
static UINT TABLE_modify( struct tagMSIVIEW *view, MSIMODIFY eModifyMode,
MSIRECORD *rec, UINT row)
{
MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
UINT r;
TRACE("%p %d %p\n", view, eModifyMode, rec );
switch (eModifyMode)
{
case MSIMODIFY_DELETE:
r = modify_delete_row( view, rec );
break;
case MSIMODIFY_VALIDATE_NEW:
r = table_validate_new( tv, rec );
break;
case MSIMODIFY_INSERT_TEMPORARY:
r = table_validate_new( tv, rec );
if (r != ERROR_SUCCESS)
break;
r = TABLE_insert_row( view, rec, TRUE );
break;
case MSIMODIFY_UPDATE:
r = msi_table_update( view, rec, row );
break;
case MSIMODIFY_REFRESH:
case MSIMODIFY_INSERT:
case MSIMODIFY_ASSIGN:
case MSIMODIFY_REPLACE:
case MSIMODIFY_MERGE:
case MSIMODIFY_VALIDATE:
case MSIMODIFY_VALIDATE_FIELD:
case MSIMODIFY_VALIDATE_DELETE:
FIXME("%p %d %p - mode not implemented\n", view, eModifyMode, rec );
r = ERROR_CALL_NOT_IMPLEMENTED;
break;
default:
r = ERROR_INVALID_DATA;
}
return r;
}
static UINT TABLE_delete( struct tagMSIVIEW *view )
{
MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
TRACE("%p\n", view );
tv->table = NULL;
tv->columns = NULL;
msi_free( tv );
return ERROR_SUCCESS;
}
static UINT TABLE_find_matching_rows( struct tagMSIVIEW *view, UINT col,
UINT val, UINT *row, MSIITERHANDLE *handle )
{
MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
const MSICOLUMNHASHENTRY *entry;
TRACE("%p, %d, %u, %p\n", view, col, val, *handle);
if( !tv->table )
return ERROR_INVALID_PARAMETER;
if( (col==0) || (col > tv->num_cols) )
return ERROR_INVALID_PARAMETER;
if( !tv->columns[col-1].hash_table )
{
UINT i;
UINT num_rows = tv->table->row_count + tv->table->nonpersistent_row_count;
MSICOLUMNHASHENTRY **hash_table;
MSICOLUMNHASHENTRY *new_entry;
if( tv->columns[col-1].offset >= tv->row_size )
{
ERR("Stuffed up %d >= %d\n", tv->columns[col-1].offset, tv->row_size );
ERR("%p %p\n", tv, tv->columns );
return ERROR_FUNCTION_FAILED;
}
/* allocate contiguous memory for the table and its entries so we
* don't have to do an expensive cleanup */
hash_table = msi_alloc(MSITABLE_HASH_TABLE_SIZE * sizeof(MSICOLUMNHASHENTRY*) +
num_rows * sizeof(MSICOLUMNHASHENTRY));
if (!hash_table)
return ERROR_OUTOFMEMORY;
memset(hash_table, 0, MSITABLE_HASH_TABLE_SIZE * sizeof(MSICOLUMNHASHENTRY*));
tv->columns[col-1].hash_table = hash_table;
new_entry = (MSICOLUMNHASHENTRY *)(hash_table + MSITABLE_HASH_TABLE_SIZE);
for (i = 0; i < num_rows; i++, new_entry++)
{
UINT row_value;
if (view->ops->fetch_int( view, i, col, &row_value ) != ERROR_SUCCESS)
continue;
new_entry->next = NULL;
new_entry->value = row_value;
new_entry->row = i;
if (hash_table[row_value % MSITABLE_HASH_TABLE_SIZE])
{
MSICOLUMNHASHENTRY *prev_entry = hash_table[row_value % MSITABLE_HASH_TABLE_SIZE];
while (prev_entry->next)
prev_entry = prev_entry->next;
prev_entry->next = new_entry;
}
else
hash_table[row_value % MSITABLE_HASH_TABLE_SIZE] = new_entry;
}
}
if( !*handle )
entry = tv->columns[col-1].hash_table[val % MSITABLE_HASH_TABLE_SIZE];
else
entry = (*handle)->next;
while (entry && entry->value != val)
entry = entry->next;
*handle = entry;
if (!entry)
return ERROR_NO_MORE_ITEMS;
*row = entry->row;
return ERROR_SUCCESS;
}
static UINT TABLE_add_ref(struct tagMSIVIEW *view)
{
MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
int i;
TRACE("%p %d\n", view, tv->table->ref_count);
for (i = 0; i < tv->table->col_count; i++)
{
if (tv->table->colinfo[i].type & MSITYPE_TEMPORARY)
InterlockedIncrement(&tv->table->colinfo[i].ref_count);
}
return InterlockedIncrement(&tv->table->ref_count);
}
static UINT TABLE_remove_column(struct tagMSIVIEW *view, LPCWSTR table, UINT number)
{
MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
MSIRECORD *rec = NULL;
MSIVIEW *columns = NULL;
UINT row, r;
rec = MSI_CreateRecord(2);
if (!rec)
return ERROR_OUTOFMEMORY;
MSI_RecordSetStringW(rec, 1, table);
MSI_RecordSetInteger(rec, 2, number);
r = TABLE_CreateView(tv->db, szColumns, &columns);
if (r != ERROR_SUCCESS)
return r;
r = msi_table_find_row((MSITABLEVIEW *)columns, rec, &row);
if (r != ERROR_SUCCESS)
goto done;
r = TABLE_delete_row(columns, row);
if (r != ERROR_SUCCESS)
goto done;
msi_update_table_columns(tv->db, table);
done:
msiobj_release(&rec->hdr);
if (columns) columns->ops->delete(columns);
return r;
}
static UINT TABLE_release(struct tagMSIVIEW *view)
{
MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
INT ref = tv->table->ref_count;
int i;
UINT r;
TRACE("%p %d\n", view, ref);
for (i = 0; i < tv->table->col_count; i++)
{
if (tv->table->colinfo[i].type & MSITYPE_TEMPORARY)
{
ref = InterlockedDecrement(&tv->table->colinfo[i].ref_count);
if (ref == 0)
{
r = TABLE_remove_column(view, tv->table->colinfo[i].tablename,
tv->table->colinfo[i].number);
if (r != ERROR_SUCCESS)
break;
}
}
}
ref = InterlockedDecrement(&tv->table->ref_count);
if (ref == 0)
{
if (!tv->table->row_count)
{
list_remove(&tv->table->entry);
free_table(tv->table);
TABLE_delete(view);
}
}
return ref;
}
static UINT TABLE_add_column(struct tagMSIVIEW *view, LPCWSTR table, UINT number,
LPCWSTR column, UINT type, BOOL hold)
{
MSITABLEVIEW *tv = (MSITABLEVIEW*)view;
MSITABLE *msitable;
MSIRECORD *rec;
UINT r, i;
rec = MSI_CreateRecord(4);
if (!rec)
return ERROR_OUTOFMEMORY;
MSI_RecordSetStringW(rec, 1, table);
MSI_RecordSetInteger(rec, 2, number);
MSI_RecordSetStringW(rec, 3, column);
MSI_RecordSetInteger(rec, 4, type);
r = TABLE_insert_row(&tv->view, rec, FALSE);
if (r != ERROR_SUCCESS)
goto done;
msi_update_table_columns(tv->db, table);
if (!hold)
goto done;
msitable = find_cached_table(tv->db, table);
for (i = 0; i < msitable->col_count; i++)
{
if (!lstrcmpW(msitable->colinfo[i].colname, column))
{
InterlockedIncrement(&msitable->colinfo[i].ref_count);
break;
}
}
done:
msiobj_release(&rec->hdr);
return r;
}
static const MSIVIEWOPS table_ops =
{
TABLE_fetch_int,
TABLE_fetch_stream,
TABLE_get_row,
TABLE_set_row,
TABLE_insert_row,
TABLE_delete_row,
TABLE_execute,
TABLE_close,
TABLE_get_dimensions,
TABLE_get_column_info,
TABLE_modify,
TABLE_delete,
TABLE_find_matching_rows,
TABLE_add_ref,
TABLE_release,
TABLE_add_column,
TABLE_remove_column,
};
UINT TABLE_CreateView( MSIDATABASE *db, LPCWSTR name, MSIVIEW **view )
{
MSITABLEVIEW *tv ;
UINT r, sz;
static const WCHAR Streams[] = {'_','S','t','r','e','a','m','s',0};
TRACE("%p %s %p\n", db, debugstr_w(name), view );
if ( !lstrcmpW( name, Streams ) )
return STREAMS_CreateView( db, view );
sz = sizeof *tv + lstrlenW(name)*sizeof name[0] ;
tv = msi_alloc_zero( sz );
if( !tv )
return ERROR_FUNCTION_FAILED;
r = get_table( db, name, &tv->table );
if( r != ERROR_SUCCESS )
{
msi_free( tv );
WARN("table not found\n");
return r;
}
TRACE("table %p found with %d columns\n", tv->table, tv->table->col_count);
/* fill the structure */
tv->view.ops = &table_ops;
tv->db = db;
tv->columns = tv->table->colinfo;
tv->num_cols = tv->table->col_count;
tv->row_size = msi_table_get_row_size( tv->table->colinfo, tv->table->col_count );
TRACE("%s one row is %d bytes\n", debugstr_w(name), tv->row_size );
*view = (MSIVIEW*) tv;
lstrcpyW( tv->name, name );
return ERROR_SUCCESS;
}
UINT MSI_CommitTables( MSIDATABASE *db )
{
UINT r;
MSITABLE *table = NULL;
TRACE("%p\n",db);
r = msi_save_string_table( db->strings, db->storage );
if( r != ERROR_SUCCESS )
{
WARN("failed to save string table r=%08x\n",r);
return r;
}
LIST_FOR_EACH_ENTRY( table, &db->tables, MSITABLE, entry )
{
r = save_table( db, table );
if( r != ERROR_SUCCESS )
{
WARN("failed to save table %s (r=%08x)\n",
debugstr_w(table->name), r);
return r;
}
}
/* force everything to reload next time */
free_cached_tables( db );
return ERROR_SUCCESS;
}
MSICONDITION MSI_DatabaseIsTablePersistent( MSIDATABASE *db, LPCWSTR table )
{
MSITABLE *t;
UINT r;
TRACE("%p %s\n", db, debugstr_w(table));
if (!table)
return MSICONDITION_ERROR;
r = get_table( db, table, &t );
if (r != ERROR_SUCCESS)
return MSICONDITION_NONE;
if (t->persistent)
return MSICONDITION_TRUE;
else
return MSICONDITION_FALSE;
}
static UINT read_raw_int(const BYTE *data, UINT col, UINT bytes)
{
UINT ret = 0, i;
for (i = 0; i < bytes; i++)
ret += (data[col + i] << i * 8);
return ret;
}
static MSIRECORD *msi_get_transform_record( const MSITABLEVIEW *tv, const string_table *st,
const BYTE *rawdata, UINT bytes_per_strref )
{
UINT i, val, ofs = 0;
USHORT mask;
MSICOLUMNINFO *columns = tv->columns;
MSIRECORD *rec;
mask = rawdata[0] | (rawdata[1] << 8);
rawdata += 2;
rec = MSI_CreateRecord( tv->num_cols );
if( !rec )
return rec;
TRACE("row ->\n");
for( i=0; i<tv->num_cols; i++ )
{
if ( (mask&1) && (i>=(mask>>8)) )
break;
/* all keys must be present */
if ( (~mask&1) && (~columns[i].type & MSITYPE_KEY) && ((1<<i) & ~mask) )
continue;
if( (columns[i].type & MSITYPE_STRING) &&
! MSITYPE_IS_BINARY(tv->columns[i].type) )
{
LPCWSTR sval;
val = read_raw_int(rawdata, ofs, bytes_per_strref);
sval = msi_string_lookup_id( st, val );
MSI_RecordSetStringW( rec, i+1, sval );
TRACE(" field %d [%s]\n", i+1, debugstr_w(sval));
ofs += bytes_per_strref;
}
else
{
UINT n = bytes_per_column( &columns[i] );
switch( n )
{
case 2:
val = read_raw_int(rawdata, ofs, n);
if (val)
MSI_RecordSetInteger( rec, i+1, val^0x8000 );
TRACE(" field %d [0x%04x]\n", i+1, val );
break;
case 4:
val = read_raw_int(rawdata, ofs, n);
if (val)
MSI_RecordSetInteger( rec, i+1, val^0x80000000 );
TRACE(" field %d [0x%08x]\n", i+1, val );
break;
default:
ERR("oops - unknown column width %d\n", n);
break;
}
ofs += n;
}
}
return rec;
}
static void dump_record( MSIRECORD *rec )
{
UINT i, n;
n = MSI_RecordGetFieldCount( rec );
for( i=1; i<=n; i++ )
{
LPCWSTR sval = MSI_RecordGetString( rec, i );
if( MSI_RecordIsNull( rec, i ) )
TRACE("row -> []\n");
else if( (sval = MSI_RecordGetString( rec, i )) )
TRACE("row -> [%s]\n", debugstr_w(sval));
else
TRACE("row -> [0x%08x]\n", MSI_RecordGetInteger( rec, i ) );
}
}
static void dump_table( const string_table *st, const USHORT *rawdata, UINT rawsize )
{
LPCWSTR sval;
UINT i;
for( i=0; i<(rawsize/2); i++ )
{
sval = msi_string_lookup_id( st, rawdata[i] );
MESSAGE(" %04x %s\n", rawdata[i], debugstr_w(sval) );
}
}
static UINT* msi_record_to_row( const MSITABLEVIEW *tv, MSIRECORD *rec )
{
LPCWSTR str;
UINT i, r, *data;
data = msi_alloc( tv->num_cols *sizeof (UINT) );
for( i=0; i<tv->num_cols; i++ )
{
data[i] = 0;
if ( ~tv->columns[i].type & MSITYPE_KEY )
continue;
/* turn the transform column value into a row value */
if ( ( tv->columns[i].type & MSITYPE_STRING ) &&
! MSITYPE_IS_BINARY(tv->columns[i].type) )
{
str = MSI_RecordGetString( rec, i+1 );
r = msi_string2idW( tv->db->strings, str, &data[i] );
/* if there's no matching string in the string table,
these keys can't match any record, so fail now. */
if( ERROR_SUCCESS != r )
{
msi_free( data );
return NULL;
}
}
else
{
data[i] = MSI_RecordGetInteger( rec, i+1 );
if ((tv->columns[i].type&0xff) == 2)
data[i] += 0x8000;
else
data[i] += 0x80000000;
}
}
return data;
}
static UINT msi_row_matches( MSITABLEVIEW *tv, UINT row, const UINT *data )
{
UINT i, r, x, ret = ERROR_FUNCTION_FAILED;
for( i=0; i<tv->num_cols; i++ )
{
if ( ~tv->columns[i].type & MSITYPE_KEY )
continue;
/* turn the transform column value into a row value */
r = TABLE_fetch_int( &tv->view, row, i+1, &x );
if ( r != ERROR_SUCCESS )
{
ERR("TABLE_fetch_int shouldn't fail here\n");
break;
}
/* if this key matches, move to the next column */
if ( x != data[i] )
{
ret = ERROR_FUNCTION_FAILED;
break;
}
ret = ERROR_SUCCESS;
}
return ret;
}
static UINT msi_table_find_row( MSITABLEVIEW *tv, MSIRECORD *rec, UINT *row )
{
UINT i, r = ERROR_FUNCTION_FAILED, *data;
data = msi_record_to_row( tv, rec );
if( !data )
return r;
for( i = 0; i < tv->table->row_count + tv->table->nonpersistent_row_count; i++ )
{
r = msi_row_matches( tv, i, data );
if( r == ERROR_SUCCESS )
{
*row = i;
break;
}
}
msi_free( data );
return r;
}
typedef struct
{
struct list entry;
LPWSTR name;
} TRANSFORMDATA;
static UINT msi_table_load_transform( MSIDATABASE *db, IStorage *stg,
string_table *st, TRANSFORMDATA *transform,
UINT bytes_per_strref )
{
UINT rawsize = 0;
BYTE *rawdata = NULL;
MSITABLEVIEW *tv = NULL;
UINT r, n, sz, i, mask;
MSIRECORD *rec = NULL;
UINT colcol = 0;
WCHAR coltable[32];
LPWSTR name;
if (!transform)
return ERROR_SUCCESS;
name = transform->name;
coltable[0] = 0;
TRACE("%p %p %p %s\n", db, stg, st, debugstr_w(name) );
/* read the transform data */
read_stream_data( stg, name, TRUE, &rawdata, &rawsize );
if ( !rawdata )
{
TRACE("table %s empty\n", debugstr_w(name) );
return ERROR_INVALID_TABLE;
}
/* create a table view */
r = TABLE_CreateView( db, name, (MSIVIEW**) &tv );
if( r != ERROR_SUCCESS )
goto err;
r = tv->view.ops->execute( &tv->view, NULL );
if( r != ERROR_SUCCESS )
goto err;
TRACE("name = %s columns = %u row_size = %u raw size = %u\n",
debugstr_w(name), tv->num_cols, tv->row_size, rawsize );
/* interpret the data */
r = ERROR_SUCCESS;
for( n=0; n < rawsize; )
{
mask = rawdata[n] | (rawdata[n+1] << 8);
if (mask&1)
{
/*
* if the low bit is set, columns are continuous and
* the number of columns is specified in the high byte
*/
sz = 2;
for( i=0; i<tv->num_cols; i++ )
{
if( (tv->columns[i].type & MSITYPE_STRING) &&
! MSITYPE_IS_BINARY(tv->columns[i].type) )
sz += bytes_per_strref;
else
sz += bytes_per_column( &tv->columns[i] );
}
}
else
{
/*
* If the low bit is not set, mask is a bitmask.
* Excepting for key fields, which are always present,
* each bit indicates that a field is present in the transform record.
*
* mask == 0 is a special case ... only the keys will be present
* and it means that this row should be deleted.
*/
sz = 2;
for( i=0; i<tv->num_cols; i++ )
{
if( (tv->columns[i].type & MSITYPE_KEY) || ((1<<i)&mask))
{
if( (tv->columns[i].type & MSITYPE_STRING) &&
! MSITYPE_IS_BINARY(tv->columns[i].type) )
sz += bytes_per_strref;
else
sz += bytes_per_column( &tv->columns[i] );
}
}
}
/* check we didn't run of the end of the table */
if ( (n+sz) > rawsize )
{
ERR("borked.\n");
dump_table( st, (USHORT *)rawdata, rawsize );
break;
}
rec = msi_get_transform_record( tv, st, &rawdata[n], bytes_per_strref );
if (rec)
{
if ( mask & 1 )
{
WCHAR table[32];
DWORD sz = 32;
UINT number = MSI_NULL_INTEGER;
TRACE("inserting record\n");
if (!lstrcmpW(name, szColumns))
{
MSI_RecordGetStringW( rec, 1, table, &sz );
number = MSI_RecordGetInteger( rec, 2 );
/*
* Native msi seems writes nul into the Number (2nd) column of
* the _Columns table, only when the columns are from a new table
*/
if ( number == MSI_NULL_INTEGER )
{
/* reset the column number on a new table */
if ( lstrcmpW(coltable, table) )
{
colcol = 0;
lstrcpyW( coltable, table );
}
/* fix nul column numbers */
MSI_RecordSetInteger( rec, 2, ++colcol );
}
}
r = TABLE_insert_row( &tv->view, rec, FALSE );
if (r != ERROR_SUCCESS)
ERR("insert row failed\n");
if ( number != MSI_NULL_INTEGER && !lstrcmpW(name, szColumns) )
msi_update_table_columns( db, table );
}
else
{
UINT row = 0;
r = msi_table_find_row( tv, rec, &row );
if (r != ERROR_SUCCESS)
ERR("no matching row to transform\n");
else if ( mask )
{
TRACE("modifying row [%d]:\n", row);
TABLE_set_row( &tv->view, row, rec, mask );
}
else
{
TRACE("deleting row [%d]:\n", row);
TABLE_delete_row( &tv->view, row );
}
}
if( TRACE_ON(msidb) ) dump_record( rec );
msiobj_release( &rec->hdr );
}
n += sz;
}
err:
/* no need to free the table, it's associated with the database */
msi_free( rawdata );
if( tv )
tv->view.ops->delete( &tv->view );
return ERROR_SUCCESS;
}
/*
* msi_table_apply_transform
*
* Enumerate the table transforms in a transform storage and apply each one.
*/
UINT msi_table_apply_transform( MSIDATABASE *db, IStorage *stg )
{
struct list transforms;
IEnumSTATSTG *stgenum = NULL;
TRANSFORMDATA *transform;
TRANSFORMDATA *tables = NULL, *columns = NULL;
HRESULT r;
STATSTG stat;
string_table *strings;
UINT ret = ERROR_FUNCTION_FAILED;
UINT bytes_per_strref;
TRACE("%p %p\n", db, stg );
strings = msi_load_string_table( stg, &bytes_per_strref );
if( !strings )
goto end;
r = IStorage_EnumElements( stg, 0, NULL, 0, &stgenum );
if( FAILED( r ) )
goto end;
list_init(&transforms);
while ( TRUE )
{
MSITABLEVIEW *tv = NULL;
WCHAR name[0x40];
ULONG count = 0;
r = IEnumSTATSTG_Next( stgenum, 1, &stat, &count );
if ( FAILED( r ) || !count )
break;
decode_streamname( stat.pwcsName, name );
if ( name[0] != 0x4840 )
continue;
if ( !lstrcmpW( name+1, szStringPool ) ||
!lstrcmpW( name+1, szStringData ) )
continue;
transform = msi_alloc_zero( sizeof(TRANSFORMDATA) );
if ( !transform )
break;
list_add_tail( &transforms, &transform->entry );
transform->name = strdupW( name + 1 );
if ( !lstrcmpW( transform->name, szTables ) )
tables = transform;
else if (!lstrcmpW( transform->name, szColumns ) )
columns = transform;
TRACE("transform contains stream %s\n", debugstr_w(name));
/* load the table */
r = TABLE_CreateView( db, transform->name, (MSIVIEW**) &tv );
if( r != ERROR_SUCCESS )
continue;
r = tv->view.ops->execute( &tv->view, NULL );
if( r != ERROR_SUCCESS )
{
tv->view.ops->delete( &tv->view );
continue;
}
tv->view.ops->delete( &tv->view );
}
/*
* Apply _Tables and _Columns transforms first so that
* the table metadata is correct, and empty tables exist.
*/
ret = msi_table_load_transform( db, stg, strings, tables, bytes_per_strref );
if (ret != ERROR_SUCCESS && ret != ERROR_INVALID_TABLE)
goto end;
ret = msi_table_load_transform( db, stg, strings, columns, bytes_per_strref );
if (ret != ERROR_SUCCESS && ret != ERROR_INVALID_TABLE)
goto end;
ret = ERROR_SUCCESS;
while ( !list_empty( &transforms ) )
{
transform = LIST_ENTRY( list_head( &transforms ), TRANSFORMDATA, entry );
if ( lstrcmpW( transform->name, szColumns ) &&
lstrcmpW( transform->name, szTables ) &&
ret == ERROR_SUCCESS )
{
ret = msi_table_load_transform( db, stg, strings, transform, bytes_per_strref );
}
list_remove( &transform->entry );
msi_free( transform->name );
msi_free( transform );
}
if ( ret == ERROR_SUCCESS )
append_storage_to_db( db, stg );
end:
if ( stgenum )
IEnumSTATSTG_Release( stgenum );
if ( strings )
msi_destroy_stringtable( strings );
return ret;
}
void append_storage_to_db( MSIDATABASE *db, IStorage *stg )
{
MSITRANSFORM *t;
t = msi_alloc( sizeof *t );
t->stg = stg;
IStorage_AddRef( stg );
list_add_tail( &db->transforms, &t->entry );
}
void msi_free_transforms( MSIDATABASE *db )
{
while( !list_empty( &db->transforms ) )
{
MSITRANSFORM *t = LIST_ENTRY( list_head( &db->transforms ),
MSITRANSFORM, entry );
list_remove( &t->entry );
IStorage_Release( t->stg );
msi_free( t );
}
}
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