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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
*
* 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"
#include "wine/unicode.h"
WINE_DEFAULT_DEBUG_CHANNEL(msidb);
#define NUM_STREAMS_COLS 2
typedef struct tabSTREAM
{
UINT str_index;
IStream *stream;
} STREAM;
typedef struct tagMSISTREAMSVIEW
{
MSIVIEW view;
MSIDATABASE *db;
STREAM **streams;
UINT max_streams;
UINT num_rows;
UINT row_size;
} MSISTREAMSVIEW;
static BOOL streams_set_table_size(MSISTREAMSVIEW *sv, UINT size)
{
if (size >= sv->max_streams)
{
sv->max_streams *= 2;
sv->streams = msi_realloc_zero(sv->streams, sv->max_streams * sizeof(STREAM *));
if (!sv->streams)
return FALSE;
}
return TRUE;
}
static STREAM *create_stream(MSISTREAMSVIEW *sv, LPCWSTR name, BOOL encoded, IStream *stm)
{
STREAM *stream;
WCHAR decoded[MAX_STREAM_NAME_LEN];
stream = msi_alloc(sizeof(STREAM));
if (!stream)
return NULL;
if (encoded)
{
decode_streamname(name, decoded);
TRACE("stream -> %s %s\n", debugstr_w(name), debugstr_w(decoded));
name = decoded;
}
stream->str_index = msi_addstringW(sv->db->strings, name, -1, 1, StringNonPersistent);
stream->stream = stm;
return stream;
}
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->num_rows)
return ERROR_NO_MORE_ITEMS;
*val = sv->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;
TRACE("(%p, %d, %d, %p)\n", view, row, col, stm);
if (row >= sv->num_rows)
return ERROR_FUNCTION_FAILED;
IStream_AddRef(sv->streams[row]->stream);
*stm = sv->streams[row]->stream;
return ERROR_SUCCESS;
}
static UINT STREAMS_get_row( struct tagMSIVIEW *view, UINT row, MSIRECORD **rec )
{
MSISTREAMSVIEW *sv = (MSISTREAMSVIEW *)view;
TRACE("%p %d %p\n", sv, row, rec);
return msi_view_get_row( sv->db, view, row, rec );
}
static UINT STREAMS_set_row(struct tagMSIVIEW *view, UINT row, MSIRECORD *rec, UINT mask)
{
MSISTREAMSVIEW *sv = (MSISTREAMSVIEW *)view;
STREAM *stream;
IStream *stm;
STATSTG stat;
LPWSTR encname = NULL, name = NULL;
USHORT *data = NULL;
HRESULT hr;
ULONG count;
UINT r = ERROR_FUNCTION_FAILED;
TRACE("(%p, %d, %p, %08x)\n", view, row, rec, mask);
if (row > sv->num_rows)
return ERROR_FUNCTION_FAILED;
r = MSI_RecordGetIStream(rec, 2, &stm);
if (r != ERROR_SUCCESS)
return r;
hr = IStream_Stat(stm, &stat, STATFLAG_NONAME);
if (FAILED(hr))
{
WARN("failed to stat stream: %08x\n", hr);
goto done;
}
if (stat.cbSize.QuadPart >> 32)
{
WARN("stream too large\n");
goto done;
}
data = msi_alloc(stat.cbSize.QuadPart);
if (!data)
goto done;
hr = IStream_Read(stm, data, stat.cbSize.QuadPart, &count);
if (FAILED(hr) || count != stat.cbSize.QuadPart)
{
WARN("failed to read stream: %08x\n", hr);
goto done;
}
name = strdupW(MSI_RecordGetString(rec, 1));
if (!name)
{
WARN("failed to retrieve stream name\n");
goto done;
}
encname = encode_streamname(FALSE, name);
msi_destroy_stream(sv->db, encname);
r = write_stream_data(sv->db->storage, name, data, count, FALSE);
if (r != ERROR_SUCCESS)
{
WARN("failed to write stream data: %d\n", r);
goto done;
}
stream = create_stream(sv, name, FALSE, NULL);
if (!stream)
goto done;
hr = IStorage_OpenStream(sv->db->storage, encname, 0,
STGM_READ | STGM_SHARE_EXCLUSIVE, 0, &stream->stream);
if (FAILED(hr))
{
WARN("failed to open stream: %08x\n", hr);
goto done;
}
sv->streams[row] = stream;
done:
msi_free(name);
msi_free(data);
msi_free(encname);
IStream_Release(stm);
return r;
}
static UINT STREAMS_insert_row(struct tagMSIVIEW *view, MSIRECORD *rec, UINT row, BOOL temporary)
{
MSISTREAMSVIEW *sv = (MSISTREAMSVIEW *)view;
UINT i;
TRACE("(%p, %p, %d, %d)\n", view, rec, row, temporary);
if (!streams_set_table_size(sv, ++sv->num_rows))
return ERROR_FUNCTION_FAILED;
if (row == -1)
row = sv->num_rows - 1;
/* shift the rows to make room for the new row */
for (i = sv->num_rows - 1; i > row; i--)
{
sv->streams[i] = sv->streams[i - 1];
}
return STREAMS_set_row(view, row, rec, 0);
}
static UINT STREAMS_delete_row(struct tagMSIVIEW *view, UINT row)
{
FIXME("(%p %d): stub!\n", view, row);
return 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 = NUM_STREAMS_COLS;
if (rows) *rows = sv->num_rows;
return ERROR_SUCCESS;
}
static UINT STREAMS_get_column_info(struct tagMSIVIEW *view, UINT n,
LPWSTR *name, UINT *type, BOOL *temporary,
LPWSTR *table_name)
{
LPCWSTR name_ptr = NULL;
static const WCHAR Name[] = {'N','a','m','e',0};
static const WCHAR Data[] = {'D','a','t','a',0};
static const WCHAR _Streams[] = {'_','S','t','r','e','a','m','s',0};
TRACE("(%p, %d, %p, %p, %p, %p)\n", view, n, name, type, temporary,
table_name);
if (n == 0 || n > NUM_STREAMS_COLS)
return ERROR_INVALID_PARAMETER;
switch (n)
{
case 1:
name_ptr = Name;
if (type) *type = MSITYPE_STRING | MSITYPE_VALID | MAX_STREAM_NAME_LEN;
break;
case 2:
name_ptr = Data;
if (type) *type = MSITYPE_STRING | MSITYPE_VALID | MSITYPE_NULLABLE;
break;
}
if (name)
{
*name = strdupW(name_ptr);
if (!*name) return ERROR_FUNCTION_FAILED;
}
if (table_name)
{
*table_name = strdupW(_Streams);
if (!*table_name)
{
msi_free(name);
return ERROR_FUNCTION_FAILED;
}
}
if (temporary)
*temporary = FALSE;
return ERROR_SUCCESS;
}
static UINT streams_find_row(MSISTREAMSVIEW *sv, MSIRECORD *rec, UINT *row)
{
LPCWSTR str;
UINT i, id, data;
str = MSI_RecordGetString(rec, 1);
msi_string2idW(sv->db->strings, str, &id);
for (i = 0; i < sv->num_rows; i++)
{
STREAMS_fetch_int(&sv->view, i, 1, &data);
if (data == id)
{
*row = i;
return ERROR_SUCCESS;
}
}
return ERROR_FUNCTION_FAILED;
}
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, 0);
}
static UINT streams_modify_assign(struct tagMSIVIEW *view, MSIRECORD *rec)
{
MSISTREAMSVIEW *sv = (MSISTREAMSVIEW *)view;
UINT r, row;
r = streams_find_row(sv, rec, &row);
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_VALIDATE_NEW:
case MSIMODIFY_INSERT_TEMPORARY:
case MSIMODIFY_REFRESH:
case MSIMODIFY_REPLACE:
case MSIMODIFY_MERGE:
case MSIMODIFY_DELETE:
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;
UINT i;
TRACE("(%p)\n", view);
for (i = 0; i < sv->num_rows; i++)
{
if (sv->streams[i])
{
if (sv->streams[i]->stream)
IStream_Release(sv->streams[i]->stream);
msi_free(sv->streams[i]);
}
}
msi_free(sv->streams);
msi_free(sv);
return ERROR_SUCCESS;
}
static UINT STREAMS_find_matching_rows(struct tagMSIVIEW *view, UINT col,
UINT val, UINT *row, MSIITERHANDLE *handle)
{
MSISTREAMSVIEW *sv = (MSISTREAMSVIEW *)view;
UINT index = PtrToUlong(*handle);
TRACE("(%p, %d, %d, %p, %p)\n", view, col, val, row, handle);
if (col == 0 || col > NUM_STREAMS_COLS)
return ERROR_INVALID_PARAMETER;
while (index < sv->num_rows)
{
if (sv->streams[index]->str_index == val)
{
*row = index;
break;
}
index++;
}
*handle = UlongToPtr(++index);
if (index > sv->num_rows)
return ERROR_NO_MORE_ITEMS;
return ERROR_SUCCESS;
}
static const MSIVIEWOPS streams_ops =
{
STREAMS_fetch_int,
STREAMS_fetch_stream,
STREAMS_get_row,
STREAMS_set_row,
STREAMS_insert_row,
STREAMS_delete_row,
STREAMS_execute,
STREAMS_close,
STREAMS_get_dimensions,
STREAMS_get_column_info,
STREAMS_modify,
STREAMS_delete,
STREAMS_find_matching_rows,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
};
static INT add_streams_to_table(MSISTREAMSVIEW *sv)
{
IEnumSTATSTG *stgenum = NULL;
STATSTG stat;
STREAM *stream = NULL;
HRESULT hr;
UINT r, count = 0, size;
LPWSTR encname;
hr = IStorage_EnumElements(sv->db->storage, 0, NULL, 0, &stgenum);
if (FAILED(hr))
return -1;
sv->max_streams = 1;
sv->streams = msi_alloc_zero(sizeof(STREAM *));
if (!sv->streams)
return -1;
while (TRUE)
{
size = 0;
hr = IEnumSTATSTG_Next(stgenum, 1, &stat, &size);
if (FAILED(hr) || !size)
break;
if (stat.type != STGTY_STREAM)
{
CoTaskMemFree(stat.pwcsName);
continue;
}
/* table streams are not in the _Streams table */
if (*stat.pwcsName == 0x4840)
{
CoTaskMemFree(stat.pwcsName);
continue;
}
stream = create_stream(sv, stat.pwcsName, TRUE, NULL);
if (!stream)
{
count = -1;
CoTaskMemFree(stat.pwcsName);
break;
}
/* these streams appear to be unencoded */
if (*stat.pwcsName == 0x0005)
{
r = msi_get_raw_stream(sv->db, stat.pwcsName, &stream->stream);
}
else
{
encname = encode_streamname(FALSE, stat.pwcsName);
r = msi_get_raw_stream(sv->db, encname, &stream->stream);
msi_free(encname);
}
CoTaskMemFree(stat.pwcsName);
if (r != ERROR_SUCCESS)
{
WARN("unable to get stream %u\n", r);
count = -1;
break;
}
if (!streams_set_table_size(sv, ++count))
{
count = -1;
break;
}
sv->streams[count - 1] = stream;
}
IEnumSTATSTG_Release(stgenum);
return count;
}
UINT STREAMS_CreateView(MSIDATABASE *db, MSIVIEW **view)
{
MSISTREAMSVIEW *sv;
INT rows;
TRACE("(%p, %p)\n", db, view);
sv = msi_alloc(sizeof(MSISTREAMSVIEW));
if (!sv)
return ERROR_FUNCTION_FAILED;
sv->view.ops = &streams_ops;
sv->db = db;
rows = add_streams_to_table(sv);
if (rows < 0)
{
msi_free( sv );
return ERROR_FUNCTION_FAILED;
}
sv->num_rows = rows;
*view = (MSIVIEW *)sv;
return ERROR_SUCCESS;
}
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