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Sweden-Number/dlls/msi/streams.c

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/*
* Implementation of the Microsoft Installer (msi.dll)
*
* Copyright 2007 James Hawkins
* Copyright 2015 Hans Leidekker for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#define COBJMACROS
#include "windef.h"
#include "winbase.h"
#include "winerror.h"
#include "msi.h"
#include "msiquery.h"
#include "objbase.h"
#include "msipriv.h"
#include "query.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(msidb);
#define NUM_STREAMS_COLS 2
typedef struct tagMSISTREAMSVIEW
{
MSIVIEW view;
MSIDATABASE *db;
UINT num_cols;
} MSISTREAMSVIEW;
static BOOL streams_resize_table( MSIDATABASE *db, UINT size )
{
if (!db->num_streams_allocated)
{
if (!(db->streams = msi_alloc_zero( size * sizeof(MSISTREAM) ))) return FALSE;
db->num_streams_allocated = size;
return TRUE;
}
while (size >= db->num_streams_allocated)
{
MSISTREAM *tmp;
UINT new_size = db->num_streams_allocated * 2;
if (!(tmp = msi_realloc_zero( db->streams, new_size * sizeof(MSISTREAM) ))) return FALSE;
db->streams = tmp;
db->num_streams_allocated = new_size;
}
return TRUE;
}
static UINT STREAMS_fetch_int(struct tagMSIVIEW *view, UINT row, UINT col, UINT *val)
{
MSISTREAMSVIEW *sv = (MSISTREAMSVIEW *)view;
TRACE("(%p, %d, %d, %p)\n", view, row, col, val);
if (col != 1)
return ERROR_INVALID_PARAMETER;
if (row >= sv->db->num_streams)
return ERROR_NO_MORE_ITEMS;
*val = sv->db->streams[row].str_index;
return ERROR_SUCCESS;
}
static UINT STREAMS_fetch_stream(struct tagMSIVIEW *view, UINT row, UINT col, IStream **stm)
{
MSISTREAMSVIEW *sv = (MSISTREAMSVIEW *)view;
LARGE_INTEGER pos;
HRESULT hr;
TRACE("(%p, %d, %d, %p)\n", view, row, col, stm);
if (row >= sv->db->num_streams)
return ERROR_FUNCTION_FAILED;
pos.QuadPart = 0;
hr = IStream_Seek( sv->db->streams[row].stream, pos, STREAM_SEEK_SET, NULL );
if (FAILED( hr ))
return ERROR_FUNCTION_FAILED;
*stm = sv->db->streams[row].stream;
IStream_AddRef( *stm );
return ERROR_SUCCESS;
}
static UINT STREAMS_set_string( struct tagMSIVIEW *view, UINT row, UINT col, const WCHAR *val, int len )
{
ERR("Cannot modify primary key.\n");
return ERROR_FUNCTION_FAILED;
}
static UINT STREAMS_set_stream( MSIVIEW *view, UINT row, UINT col, IStream *stream )
{
MSISTREAMSVIEW *sv = (MSISTREAMSVIEW *)view;
IStream *prev;
TRACE("view %p, row %u, col %u, stream %p.\n", view, row, col, stream);
prev = sv->db->streams[row].stream;
IStream_AddRef(sv->db->streams[row].stream = stream);
if (prev) IStream_Release(prev);
return ERROR_SUCCESS;
}
static UINT STREAMS_set_row(struct tagMSIVIEW *view, UINT row, MSIRECORD *rec, UINT mask)
{
MSISTREAMSVIEW *sv = (MSISTREAMSVIEW *)view;
TRACE("(%p, %d, %p, %08x)\n", view, row, rec, mask);
if (row > sv->db->num_streams || mask >= (1 << sv->num_cols))
return ERROR_INVALID_PARAMETER;
if (mask & 1)
{
const WCHAR *name = MSI_RecordGetString( rec, 1 );
if (!name) return ERROR_INVALID_PARAMETER;
sv->db->streams[row].str_index = msi_add_string( sv->db->strings, name, -1, FALSE );
}
if (mask & 2)
{
IStream *old, *new;
HRESULT hr;
UINT r;
r = MSI_RecordGetIStream( rec, 2, &new );
if (r != ERROR_SUCCESS)
return r;
old = sv->db->streams[row].stream;
hr = IStream_QueryInterface( new, &IID_IStream, (void **)&sv->db->streams[row].stream );
IStream_Release( new );
if (FAILED( hr ))
{
return ERROR_FUNCTION_FAILED;
}
if (old) IStream_Release( old );
}
return ERROR_SUCCESS;
}
static UINT streams_find_row( MSISTREAMSVIEW *sv, MSIRECORD *rec, UINT *row )
{
const WCHAR *str;
UINT r, i, id, val;
str = MSI_RecordGetString( rec, 1 );
r = msi_string2id( sv->db->strings, str, -1, &id );
if (r != ERROR_SUCCESS)
return r;
for (i = 0; i < sv->db->num_streams; i++)
{
STREAMS_fetch_int( &sv->view, i, 1, &val );
if (val == id)
{
if (row) *row = i;
return ERROR_SUCCESS;
}
}
return ERROR_FUNCTION_FAILED;
}
static UINT STREAMS_insert_row(struct tagMSIVIEW *view, MSIRECORD *rec, UINT row, BOOL temporary)
{
MSISTREAMSVIEW *sv = (MSISTREAMSVIEW *)view;
UINT i, r, num_rows = sv->db->num_streams + 1;
TRACE("(%p, %p, %d, %d)\n", view, rec, row, temporary);
r = streams_find_row( sv, rec, NULL );
if (r == ERROR_SUCCESS)
return ERROR_FUNCTION_FAILED;
if (!streams_resize_table( sv->db, num_rows ))
return ERROR_FUNCTION_FAILED;
if (row == -1)
row = num_rows - 1;
/* shift the rows to make room for the new row */
for (i = num_rows - 1; i > row; i--)
{
sv->db->streams[i] = sv->db->streams[i - 1];
}
r = STREAMS_set_row( view, row, rec, (1 << sv->num_cols) - 1 );
if (r == ERROR_SUCCESS)
sv->db->num_streams = num_rows;
return r;
}
static UINT STREAMS_delete_row(struct tagMSIVIEW *view, UINT row)
{
MSIDATABASE *db = ((MSISTREAMSVIEW *)view)->db;
UINT i, num_rows = db->num_streams - 1;
const WCHAR *name;
WCHAR *encname;
HRESULT hr;
TRACE("(%p %d)\n", view, row);
if (!db->num_streams || row > num_rows)
return ERROR_FUNCTION_FAILED;
name = msi_string_lookup( db->strings, db->streams[row].str_index, NULL );
if (!(encname = encode_streamname( FALSE, name ))) return ERROR_OUTOFMEMORY;
IStream_Release( db->streams[row].stream );
for (i = row; i < num_rows; i++)
db->streams[i] = db->streams[i + 1];
db->num_streams = num_rows;
hr = IStorage_DestroyElement( db->storage, encname );
msi_free( encname );
return FAILED( hr ) ? ERROR_FUNCTION_FAILED : ERROR_SUCCESS;
}
static UINT STREAMS_execute(struct tagMSIVIEW *view, MSIRECORD *record)
{
TRACE("(%p, %p)\n", view, record);
return ERROR_SUCCESS;
}
static UINT STREAMS_close(struct tagMSIVIEW *view)
{
TRACE("(%p)\n", view);
return ERROR_SUCCESS;
}
static UINT STREAMS_get_dimensions(struct tagMSIVIEW *view, UINT *rows, UINT *cols)
{
MSISTREAMSVIEW *sv = (MSISTREAMSVIEW *)view;
TRACE("(%p, %p, %p)\n", view, rows, cols);
if (cols) *cols = sv->num_cols;
if (rows) *rows = sv->db->num_streams;
return ERROR_SUCCESS;
}
static UINT STREAMS_get_column_info( struct tagMSIVIEW *view, UINT n, LPCWSTR *name,
UINT *type, BOOL *temporary, LPCWSTR *table_name )
{
MSISTREAMSVIEW *sv = (MSISTREAMSVIEW *)view;
TRACE("(%p, %d, %p, %p, %p, %p)\n", view, n, name, type, temporary, table_name);
if (!n || n > sv->num_cols)
return ERROR_INVALID_PARAMETER;
switch (n)
{
case 1:
if (name) *name = szName;
if (type) *type = MSITYPE_STRING | MSITYPE_VALID | MAX_STREAM_NAME_LEN;
break;
case 2:
if (name) *name = szData;
if (type) *type = MSITYPE_STRING | MSITYPE_VALID | MSITYPE_NULLABLE;
break;
}
if (table_name) *table_name = szStreams;
if (temporary) *temporary = FALSE;
return ERROR_SUCCESS;
}
static UINT streams_modify_update(struct tagMSIVIEW *view, MSIRECORD *rec)
{
MSISTREAMSVIEW *sv = (MSISTREAMSVIEW *)view;
UINT r, row;
r = streams_find_row(sv, rec, &row);
if (r != ERROR_SUCCESS)
return ERROR_FUNCTION_FAILED;
return STREAMS_set_row( view, row, rec, (1 << sv->num_cols) - 1 );
}
static UINT streams_modify_assign(struct tagMSIVIEW *view, MSIRECORD *rec)
{
MSISTREAMSVIEW *sv = (MSISTREAMSVIEW *)view;
UINT r;
r = streams_find_row( sv, rec, NULL );
if (r == ERROR_SUCCESS)
return streams_modify_update(view, rec);
return STREAMS_insert_row(view, rec, -1, FALSE);
}
static UINT STREAMS_modify(struct tagMSIVIEW *view, MSIMODIFY eModifyMode, MSIRECORD *rec, UINT row)
{
UINT r;
TRACE("%p %d %p\n", view, eModifyMode, rec);
switch (eModifyMode)
{
case MSIMODIFY_ASSIGN:
r = streams_modify_assign(view, rec);
break;
case MSIMODIFY_INSERT:
r = STREAMS_insert_row(view, rec, -1, FALSE);
break;
case MSIMODIFY_UPDATE:
r = streams_modify_update(view, rec);
break;
case MSIMODIFY_DELETE:
r = STREAMS_delete_row(view, row - 1);
break;
case MSIMODIFY_VALIDATE_NEW:
case MSIMODIFY_INSERT_TEMPORARY:
case MSIMODIFY_REFRESH:
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 STREAMS_delete(struct tagMSIVIEW *view)
{
MSISTREAMSVIEW *sv = (MSISTREAMSVIEW *)view;
TRACE("(%p)\n", view);
msi_free(sv);
return ERROR_SUCCESS;
}
static const MSIVIEWOPS streams_ops =
{
STREAMS_fetch_int,
STREAMS_fetch_stream,
NULL,
STREAMS_set_string,
STREAMS_set_stream,
STREAMS_set_row,
STREAMS_insert_row,
STREAMS_delete_row,
STREAMS_execute,
STREAMS_close,
STREAMS_get_dimensions,
STREAMS_get_column_info,
STREAMS_modify,
STREAMS_delete,
NULL,
NULL,
NULL,
NULL,
NULL,
};
static HRESULT open_stream( MSIDATABASE *db, const WCHAR *name, IStream **stream )
{
HRESULT hr;
hr = IStorage_OpenStream( db->storage, name, NULL, STGM_READ|STGM_SHARE_EXCLUSIVE, 0, stream );
if (FAILED( hr ))
{
MSITRANSFORM *transform;
LIST_FOR_EACH_ENTRY( transform, &db->transforms, MSITRANSFORM, entry )
{
hr = IStorage_OpenStream( transform->stg, name, NULL, STGM_READ|STGM_SHARE_EXCLUSIVE, 0, stream );
if (SUCCEEDED( hr ))
break;
}
}
return hr;
}
static MSISTREAM *find_stream( MSIDATABASE *db, const WCHAR *name )
{
UINT r, id, i;
r = msi_string2id( db->strings, name, -1, &id );
if (r != ERROR_SUCCESS)
return NULL;
for (i = 0; i < db->num_streams; i++)
{
if (db->streams[i].str_index == id) return &db->streams[i];
}
return NULL;
}
static UINT append_stream( MSIDATABASE *db, const WCHAR *name, IStream *stream )
{
UINT i = db->num_streams;
if (!streams_resize_table( db, db->num_streams + 1 ))
return ERROR_OUTOFMEMORY;
db->streams[i].str_index = msi_add_string( db->strings, name, -1, FALSE );
db->streams[i].stream = stream;
db->num_streams++;
TRACE("added %s\n", debugstr_w( name ));
return ERROR_SUCCESS;
}
static UINT load_streams( MSIDATABASE *db )
{
WCHAR decoded[MAX_STREAM_NAME_LEN + 1];
IEnumSTATSTG *stgenum;
STATSTG stat;
HRESULT hr;
UINT count, r = ERROR_SUCCESS;
IStream *stream;
hr = IStorage_EnumElements( db->storage, 0, NULL, 0, &stgenum );
if (FAILED( hr ))
return ERROR_FUNCTION_FAILED;
for (;;)
{
count = 0;
hr = IEnumSTATSTG_Next( stgenum, 1, &stat, &count );
if (FAILED( hr ) || !count)
break;
/* table streams are not in the _Streams table */
if (stat.type != STGTY_STREAM || *stat.pwcsName == 0x4840)
{
CoTaskMemFree( stat.pwcsName );
continue;
}
decode_streamname( stat.pwcsName, decoded );
if (find_stream( db, decoded ))
{
CoTaskMemFree( stat.pwcsName );
continue;
}
TRACE("found new stream %s\n", debugstr_w( decoded ));
hr = open_stream( db, stat.pwcsName, &stream );
CoTaskMemFree( stat.pwcsName );
if (FAILED( hr ))
{
ERR("unable to open stream %08x\n", hr);
r = ERROR_FUNCTION_FAILED;
break;
}
r = append_stream( db, decoded, stream );
if (r != ERROR_SUCCESS)
break;
}
TRACE("loaded %u streams\n", db->num_streams);
IEnumSTATSTG_Release( stgenum );
return r;
}
UINT msi_get_stream( MSIDATABASE *db, const WCHAR *name, IStream **ret )
{
MSISTREAM *stream;
WCHAR *encname;
HRESULT hr;
UINT r;
if ((stream = find_stream( db, name )))
{
LARGE_INTEGER pos;
pos.QuadPart = 0;
hr = IStream_Seek( stream->stream, pos, STREAM_SEEK_SET, NULL );
if (FAILED( hr ))
return ERROR_FUNCTION_FAILED;
*ret = stream->stream;
IStream_AddRef( *ret );
return ERROR_SUCCESS;
}
if (!(encname = encode_streamname( FALSE, name )))
return ERROR_OUTOFMEMORY;
hr = open_stream( db, encname, ret );
msi_free( encname );
if (FAILED( hr ))
return ERROR_FUNCTION_FAILED;
r = append_stream( db, name, *ret );
if (r != ERROR_SUCCESS)
{
IStream_Release( *ret );
return r;
}
IStream_AddRef( *ret );
return ERROR_SUCCESS;
}
UINT STREAMS_CreateView(MSIDATABASE *db, MSIVIEW **view)
{
MSISTREAMSVIEW *sv;
UINT r;
TRACE("(%p, %p)\n", db, view);
r = load_streams( db );
if (r != ERROR_SUCCESS)
return r;
if (!(sv = msi_alloc_zero( sizeof(MSISTREAMSVIEW) )))
return ERROR_OUTOFMEMORY;
sv->view.ops = &streams_ops;
sv->num_cols = NUM_STREAMS_COLS;
sv->db = db;
*view = (MSIVIEW *)sv;
return ERROR_SUCCESS;
}
static HRESULT write_stream( IStream *dst, IStream *src )
{
HRESULT hr;
char buf[4096];
STATSTG stat;
LARGE_INTEGER pos;
UINT count, size;
hr = IStream_Stat( src, &stat, STATFLAG_NONAME );
if (FAILED( hr )) return hr;
hr = IStream_SetSize( dst, stat.cbSize );
if (FAILED( hr )) return hr;
pos.QuadPart = 0;
hr = IStream_Seek( dst, pos, STREAM_SEEK_SET, NULL );
if (FAILED( hr )) return hr;
for (;;)
{
size = min( sizeof(buf), stat.cbSize.QuadPart );
hr = IStream_Read( src, buf, size, &count );
if (FAILED( hr ) || count != size)
{
WARN("failed to read stream: %08x\n", hr);
return E_INVALIDARG;
}
stat.cbSize.QuadPart -= count;
if (count)
{
size = count;
hr = IStream_Write( dst, buf, size, &count );
if (FAILED( hr ) || count != size)
{
WARN("failed to write stream: %08x\n", hr);
return E_INVALIDARG;
}
}
if (!stat.cbSize.QuadPart) break;
}
return S_OK;
}
UINT msi_commit_streams( MSIDATABASE *db )
{
UINT i;
const WCHAR *name;
WCHAR *encname;
IStream *stream;
HRESULT hr;
TRACE("got %u streams\n", db->num_streams);
for (i = 0; i < db->num_streams; i++)
{
name = msi_string_lookup( db->strings, db->streams[i].str_index, NULL );
if (!wcscmp( name, szSumInfo )) continue;
if (!(encname = encode_streamname( FALSE, name ))) return ERROR_OUTOFMEMORY;
TRACE("saving stream %s as %s\n", debugstr_w(name), debugstr_w(encname));
hr = IStorage_CreateStream( db->storage, encname, STGM_WRITE|STGM_SHARE_EXCLUSIVE, 0, 0, &stream );
if (SUCCEEDED( hr ))
{
hr = write_stream( stream, db->streams[i].stream );
if (FAILED( hr ))
{
ERR("failed to write stream %s (hr = %08x)\n", debugstr_w(encname), hr);
msi_free( encname );
IStream_Release( stream );
return ERROR_FUNCTION_FAILED;
}
hr = IStream_Commit( stream, 0 );
IStream_Release( stream );
if (FAILED( hr ))
{
ERR("failed to commit stream %s (hr = %08x)\n", debugstr_w(encname), hr);
msi_free( encname );
return ERROR_FUNCTION_FAILED;
}
}
else if (hr != STG_E_FILEALREADYEXISTS)
{
ERR("failed to create stream %s (hr = %08x)\n", debugstr_w(encname), hr);
msi_free( encname );
return ERROR_FUNCTION_FAILED;
}
msi_free( encname );
}
return ERROR_SUCCESS;
}
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