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Sweden-Number/dlls/msi/files.c

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/*
* Implementation of the Microsoft Installer (msi.dll)
*
* Copyright 2005 Aric Stewart 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
*/
/*
* Actions dealing with files These are
*
* InstallFiles
* DuplicateFiles
* MoveFiles (TODO)
* PatchFiles (TODO)
* RemoveDuplicateFiles(TODO)
* RemoveFiles(TODO)
*/
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "winerror.h"
#include "wine/debug.h"
#include "fdi.h"
#include "msi.h"
#include "msidefs.h"
#include "msvcrt/fcntl.h"
#include "msipriv.h"
#include "winuser.h"
#include "winreg.h"
#include "shlwapi.h"
#include "wine/unicode.h"
#include "action.h"
WINE_DEFAULT_DEBUG_CHANNEL(msi);
extern const WCHAR szInstallFiles[];
extern const WCHAR szDuplicateFiles[];
extern const WCHAR szMoveFiles[];
extern const WCHAR szPatchFiles[];
extern const WCHAR szRemoveDuplicateFiles[];
extern const WCHAR szRemoveFiles[];
static const WCHAR cszTempFolder[]= {'T','e','m','p','F','o','l','d','e','r',0};
extern LPCWSTR msi_download_file( LPCWSTR szUrl, LPWSTR filename );
/*
* This is a helper function for handling embedded cabinet media
*/
static UINT writeout_cabinet_stream(MSIPACKAGE *package, LPCWSTR stream_name,
WCHAR* source)
{
UINT rc;
USHORT* data;
UINT size;
DWORD write;
HANDLE the_file;
WCHAR tmp[MAX_PATH];
rc = read_raw_stream_data(package->db,stream_name,&data,&size);
if (rc != ERROR_SUCCESS)
return rc;
write = MAX_PATH;
if (MSI_GetPropertyW(package, cszTempFolder, tmp, &write))
GetTempPathW(MAX_PATH,tmp);
GetTempFileNameW(tmp,stream_name,0,source);
track_tempfile(package,strrchrW(source,'\\'), source);
the_file = CreateFileW(source, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL, NULL);
if (the_file == INVALID_HANDLE_VALUE)
{
ERR("Unable to create file %s\n",debugstr_w(source));
rc = ERROR_FUNCTION_FAILED;
goto end;
}
WriteFile(the_file,data,size,&write,NULL);
CloseHandle(the_file);
TRACE("wrote %li bytes to %s\n",write,debugstr_w(source));
end:
msi_free(data);
return rc;
}
/* Support functions for FDI functions */
typedef struct
{
MSIPACKAGE* package;
LPCSTR cab_path;
} CabData;
static void * cabinet_alloc(ULONG cb)
{
return msi_alloc(cb);
}
static void cabinet_free(void *pv)
{
msi_free(pv);
}
static INT_PTR cabinet_open(char *pszFile, int oflag, int pmode)
{
HANDLE handle;
DWORD dwAccess = 0;
DWORD dwShareMode = 0;
DWORD dwCreateDisposition = OPEN_EXISTING;
switch (oflag & _O_ACCMODE)
{
case _O_RDONLY:
dwAccess = GENERIC_READ;
dwShareMode = FILE_SHARE_READ | FILE_SHARE_DELETE;
break;
case _O_WRONLY:
dwAccess = GENERIC_WRITE;
dwShareMode = FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE;
break;
case _O_RDWR:
dwAccess = GENERIC_READ | GENERIC_WRITE;
dwShareMode = FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE;
break;
}
if ((oflag & (_O_CREAT | _O_EXCL)) == (_O_CREAT | _O_EXCL))
dwCreateDisposition = CREATE_NEW;
else if (oflag & _O_CREAT)
dwCreateDisposition = CREATE_ALWAYS;
handle = CreateFileA( pszFile, dwAccess, dwShareMode, NULL,
dwCreateDisposition, 0, NULL );
if (handle == INVALID_HANDLE_VALUE)
return 0;
return (INT_PTR) handle;
}
static UINT cabinet_read(INT_PTR hf, void *pv, UINT cb)
{
HANDLE handle = (HANDLE) hf;
DWORD dwRead;
if (ReadFile(handle, pv, cb, &dwRead, NULL))
return dwRead;
return 0;
}
static UINT cabinet_write(INT_PTR hf, void *pv, UINT cb)
{
HANDLE handle = (HANDLE) hf;
DWORD dwWritten;
if (WriteFile(handle, pv, cb, &dwWritten, NULL))
return dwWritten;
return 0;
}
static int cabinet_close(INT_PTR hf)
{
HANDLE handle = (HANDLE) hf;
return CloseHandle(handle) ? 0 : -1;
}
static long cabinet_seek(INT_PTR hf, long dist, int seektype)
{
HANDLE handle = (HANDLE) hf;
/* flags are compatible and so are passed straight through */
return SetFilePointer(handle, dist, NULL, seektype);
}
static void msi_file_update_ui( MSIPACKAGE *package, MSIFILE *f, const WCHAR *action )
{
MSIRECORD *uirow;
LPWSTR uipath, p;
/* the UI chunk */
uirow = MSI_CreateRecord( 9 );
MSI_RecordSetStringW( uirow, 1, f->FileName );
uipath = strdupW( f->TargetPath );
p = strrchrW(uipath,'\\');
if (p)
p[1]=0;
MSI_RecordSetStringW( uirow, 9, uipath);
MSI_RecordSetInteger( uirow, 6, f->FileSize );
ui_actiondata( package, action, uirow);
msiobj_release( &uirow->hdr );
msi_free( uipath );
ui_progress( package, 2, f->FileSize, 0, 0);
}
static INT_PTR cabinet_notify(FDINOTIFICATIONTYPE fdint, PFDINOTIFICATION pfdin)
{
switch (fdint)
{
case fdintCOPY_FILE:
{
CabData *data = (CabData*) pfdin->pv;
HANDLE handle;
LPWSTR file;
MSIFILE *f;
DWORD attrs;
file = strdupAtoW(pfdin->psz1);
f = get_loaded_file(data->package, file);
msi_free(file);
if (!f)
{
WARN("unknown file in cabinet (%s)\n",debugstr_a(pfdin->psz1));
return 0;
}
if (f->state != msifs_missing && f->state != msifs_overwrite)
{
TRACE("Skipping extraction of %s\n",debugstr_a(pfdin->psz1));
return 0;
}
msi_file_update_ui( data->package, f, szInstallFiles );
TRACE("extracting %s\n", debugstr_w(f->TargetPath) );
attrs = f->Attributes & (FILE_ATTRIBUTE_READONLY|FILE_ATTRIBUTE_HIDDEN|FILE_ATTRIBUTE_SYSTEM);
if (!attrs) attrs = FILE_ATTRIBUTE_NORMAL;
handle = CreateFileW( f->TargetPath, GENERIC_READ | GENERIC_WRITE, 0,
NULL, CREATE_ALWAYS, attrs, NULL );
if ( handle == INVALID_HANDLE_VALUE )
{
ERR("failed to create %s (error %ld)\n",
debugstr_w( f->TargetPath ), GetLastError() );
return 0;
}
f->state = msifs_installed;
return (INT_PTR) handle;
}
case fdintCLOSE_FILE_INFO:
{
FILETIME ft;
FILETIME ftLocal;
HANDLE handle = (HANDLE) pfdin->hf;
if (!DosDateTimeToFileTime(pfdin->date, pfdin->time, &ft))
return -1;
if (!LocalFileTimeToFileTime(&ft, &ftLocal))
return -1;
if (!SetFileTime(handle, &ftLocal, 0, &ftLocal))
return -1;
CloseHandle(handle);
return 1;
}
default:
return 0;
}
}
/***********************************************************************
* extract_cabinet_file
*
* Extract files from a cab file.
*/
static BOOL extract_cabinet_file(MSIPACKAGE* package, LPCWSTR source,
LPCWSTR path)
{
HFDI hfdi;
ERF erf;
BOOL ret;
char *cabinet;
char *cab_path;
static CHAR empty[] = "";
CabData data;
TRACE("Extracting %s to %s\n",debugstr_w(source), debugstr_w(path));
hfdi = FDICreate(cabinet_alloc,
cabinet_free,
cabinet_open,
cabinet_read,
cabinet_write,
cabinet_close,
cabinet_seek,
0,
&erf);
if (!hfdi)
{
ERR("FDICreate failed\n");
return FALSE;
}
if (!(cabinet = strdupWtoA( source )))
{
FDIDestroy(hfdi);
return FALSE;
}
if (!(cab_path = strdupWtoA( path )))
{
FDIDestroy(hfdi);
msi_free(cabinet);
return FALSE;
}
data.package = package;
data.cab_path = cab_path;
ret = FDICopy(hfdi, cabinet, empty, 0, cabinet_notify, NULL, &data);
if (!ret)
ERR("FDICopy failed\n");
FDIDestroy(hfdi);
msi_free(cabinet);
msi_free(cab_path);
return ret;
}
static VOID set_file_source(MSIPACKAGE* package, MSIFILE* file, MSICOMPONENT*
comp, LPCWSTR path)
{
if (!file->IsCompressed)
{
LPWSTR p, path;
p = resolve_folder(package, comp->Directory, TRUE, FALSE, NULL);
path = build_directory_name(2, p, file->ShortName);
if (INVALID_FILE_ATTRIBUTES == GetFileAttributesW( path ))
{
msi_free(path);
path = build_directory_name(2, p, file->LongName);
}
file->SourcePath = path;
msi_free(p);
}
else
file->SourcePath = build_directory_name(2, path, file->File);
}
struct media_info {
UINT last_sequence;
LPWSTR last_volume;
LPWSTR last_path;
DWORD count;
WCHAR source[MAX_PATH];
};
static struct media_info *create_media_info( void )
{
struct media_info *mi;
mi = msi_alloc( sizeof *mi );
if (mi)
{
mi->last_sequence = 0;
mi->last_volume = NULL;
mi->last_path = NULL;
mi->count = 0;
mi->source[0] = 0;
}
return mi;
}
static void free_media_info( struct media_info *mi )
{
msi_free( mi->last_path );
msi_free( mi );
}
/* downloads a remote cabinet and extracts it if it exists */
static UINT msi_extract_remote_cabinet( MSIPACKAGE *package, struct media_info *mi )
{
FDICABINETINFO cabinfo;
WCHAR temppath[MAX_PATH];
WCHAR src[MAX_PATH];
LPSTR cabpath;
LPCWSTR file;
LPWSTR ptr;
HFDI hfdi;
ERF erf;
int hf;
/* the URL is the path prefix of the package URL and the filename
* of the file to download
*/
ptr = strrchrW(package->PackagePath, '/');
lstrcpynW(src, package->PackagePath, ptr - package->PackagePath + 2);
ptr = strrchrW(mi->source, '\\');
lstrcatW(src, ptr + 1);
file = msi_download_file( src, temppath );
lstrcpyW(mi->source, file);
/* check if the remote cabinet still exists, ignore if it doesn't */
hfdi = FDICreate(cabinet_alloc, cabinet_free, cabinet_open, cabinet_read,
cabinet_write, cabinet_close, cabinet_seek, 0, &erf);
if (!hfdi)
{
ERR("FDICreate failed\n");
return ERROR_FUNCTION_FAILED;
}
cabpath = strdupWtoA(mi->source);
hf = cabinet_open(cabpath, _O_RDONLY, 0);
if (!FDIIsCabinet(hfdi, hf, &cabinfo))
{
WARN("Remote cabinet %s does not exist.\n", debugstr_w(mi->source));
msi_free(cabpath);
return ERROR_SUCCESS;
}
msi_free(cabpath);
return !extract_cabinet_file(package, mi->source, mi->last_path);
}
static UINT ready_media_for_file( MSIPACKAGE *package, struct media_info *mi,
MSIFILE *file )
{
UINT rc = ERROR_SUCCESS;
MSIRECORD * row = 0;
static const WCHAR ExecSeqQuery[] =
{'S','E','L','E','C','T',' ','*',' ', 'F','R','O','M',' ',
'`','M','e','d','i','a','`',' ','W','H','E','R','E',' ',
'`','L','a','s','t','S','e','q','u','e','n','c','e','`',' ','>','=',
' ','%', 'i',' ','O','R','D','E','R',' ','B','Y',' ',
'`','L','a','s','t','S','e','q','u','e','n','c','e','`',0};
LPCWSTR cab, volume;
DWORD sz;
INT seq;
LPCWSTR prompt;
MSICOMPONENT *comp = file->Component;
if (file->Sequence <= mi->last_sequence)
{
set_file_source(package,file,comp,mi->last_path);
TRACE("Media already ready (%u, %u)\n",file->Sequence,mi->last_sequence);
return ERROR_SUCCESS;
}
mi->count ++;
row = MSI_QueryGetRecord(package->db, ExecSeqQuery, file->Sequence);
if (!row)
{
TRACE("Unable to query row\n");
return ERROR_FUNCTION_FAILED;
}
volume = MSI_RecordGetString(row, 5);
prompt = MSI_RecordGetString(row, 3);
msi_free(mi->last_path);
mi->last_path = NULL;
if (!file->IsCompressed)
{
mi->last_path = resolve_folder(package, comp->Directory, TRUE, FALSE, NULL);
set_file_source(package,file,comp,mi->last_path);
MsiSourceListAddMediaDiskW(package->ProductCode, NULL,
MSIINSTALLCONTEXT_USERMANAGED, MSICODE_PRODUCT, mi->count, volume,
prompt);
MsiSourceListSetInfoW(package->ProductCode, NULL,
MSIINSTALLCONTEXT_USERMANAGED,
MSICODE_PRODUCT|MSISOURCETYPE_MEDIA,
INSTALLPROPERTY_LASTUSEDSOURCEW, mi->last_path);
msiobj_release(&row->hdr);
return rc;
}
seq = MSI_RecordGetInteger(row,2);
mi->last_sequence = seq;
cab = MSI_RecordGetString(row,4);
if (cab)
{
TRACE("Source is CAB %s\n",debugstr_w(cab));
/* the stream does not contain the # character */
if (cab[0]=='#')
{
LPWSTR path;
writeout_cabinet_stream(package,&cab[1],mi->source);
mi->last_path = strdupW(mi->source);
*(strrchrW(mi->last_path,'\\')+1)=0;
path = msi_dup_property( package, cszSourceDir );
MsiSourceListAddMediaDiskW(package->ProductCode, NULL,
MSIINSTALLCONTEXT_USERMANAGED, MSICODE_PRODUCT, mi->count,
volume, prompt);
MsiSourceListSetInfoW(package->ProductCode, NULL,
MSIINSTALLCONTEXT_USERMANAGED,
MSICODE_PRODUCT|MSISOURCETYPE_NETWORK,
INSTALLPROPERTY_LASTUSEDSOURCEW, path);
msi_free(path);
}
else
{
sz = MAX_PATH;
mi->last_path = msi_alloc(MAX_PATH*sizeof(WCHAR));
if (MSI_GetPropertyW(package, cszSourceDir, mi->source, &sz))
{
ERR("No Source dir defined\n");
rc = ERROR_FUNCTION_FAILED;
}
else
{
strcpyW(mi->last_path,mi->source);
strcatW(mi->source,cab);
MsiSourceListSetInfoW(package->ProductCode, NULL,
MSIINSTALLCONTEXT_USERMANAGED,
MSICODE_PRODUCT|MSISOURCETYPE_MEDIA,
INSTALLPROPERTY_LASTUSEDSOURCEW, mi->last_path);
/* extract the cab file into a folder in the temp folder */
sz = MAX_PATH;
if (MSI_GetPropertyW(package, cszTempFolder,mi->last_path, &sz)
!= ERROR_SUCCESS)
GetTempPathW(MAX_PATH,mi->last_path);
}
}
/* only download the remote cabinet file if a local copy does not exist */
if (GetFileAttributesW(mi->source) == INVALID_FILE_ATTRIBUTES &&
UrlIsW(package->PackagePath, URLIS_URL))
{
rc = msi_extract_remote_cabinet(package, mi);
}
else
{
rc = !extract_cabinet_file(package, mi->source, mi->last_path);
}
}
else
{
sz = MAX_PATH;
mi->last_path = msi_alloc(MAX_PATH*sizeof(WCHAR));
MSI_GetPropertyW(package,cszSourceDir,mi->source,&sz);
strcpyW(mi->last_path,mi->source);
MsiSourceListSetInfoW(package->ProductCode, NULL,
MSIINSTALLCONTEXT_USERMANAGED,
MSICODE_PRODUCT|MSISOURCETYPE_MEDIA,
INSTALLPROPERTY_LASTUSEDSOURCEW, mi->last_path);
}
set_file_source(package, file, comp, mi->last_path);
MsiSourceListAddMediaDiskW(package->ProductCode, NULL,
MSIINSTALLCONTEXT_USERMANAGED, MSICODE_PRODUCT, mi->count, volume,
prompt);
msiobj_release(&row->hdr);
return rc;
}
static UINT get_file_target(MSIPACKAGE *package, LPCWSTR file_key,
MSIFILE** file)
{
LIST_FOR_EACH_ENTRY( *file, &package->files, MSIFILE, entry )
{
if (lstrcmpW( file_key, (*file)->File )==0)
{
if ((*file)->state >= msifs_overwrite)
return ERROR_SUCCESS;
else
return ERROR_FILE_NOT_FOUND;
}
}
return ERROR_FUNCTION_FAILED;
}
/*
* ACTION_InstallFiles()
*
* For efficiency, this is done in two passes:
* 1) Correct all the TargetPaths and determine what files are to be installed.
* 2) Extract Cabinets and copy files.
*/
UINT ACTION_InstallFiles(MSIPACKAGE *package)
{
struct media_info *mi;
UINT rc = ERROR_SUCCESS;
LPWSTR ptr;
MSIFILE *file;
/* increment progress bar each time action data is sent */
ui_progress(package,1,1,0,0);
/* handle the keys for the SourceList */
ptr = strrchrW(package->PackagePath,'\\');
if (ptr)
{
ptr ++;
MsiSourceListSetInfoW(package->ProductCode, NULL,
MSIINSTALLCONTEXT_USERMANAGED,
MSICODE_PRODUCT,
INSTALLPROPERTY_PACKAGENAMEW, ptr);
}
/* FIXME("Write DiskPrompt\n"); */
/* Pass 1 */
LIST_FOR_EACH_ENTRY( file, &package->files, MSIFILE, entry )
{
if (!ACTION_VerifyComponentForAction( file->Component, INSTALLSTATE_LOCAL ))
{
ui_progress(package,2,file->FileSize,0,0);
TRACE("File %s is not scheduled for install\n",
debugstr_w(file->File));
file->state = msifs_skipped;
}
}
/*
* Despite MSDN specifying that the CreateFolders action
* should be called before InstallFiles, some installers don't
* do that, and they seem to work correctly. We need to create
* directories here to make sure that the files can be copied.
*/
msi_create_component_directories( package );
mi = create_media_info();
/* Pass 2 */
LIST_FOR_EACH_ENTRY( file, &package->files, MSIFILE, entry )
{
if (file->state != msifs_missing && file->state != msifs_overwrite)
continue;
TRACE("Pass 2: %s\n",debugstr_w(file->File));
rc = ready_media_for_file( package, mi, file );
if (rc != ERROR_SUCCESS)
{
ERR("Unable to ready media\n");
rc = ERROR_FUNCTION_FAILED;
break;
}
TRACE("file paths %s to %s\n",debugstr_w(file->SourcePath),
debugstr_w(file->TargetPath));
if (file->state != msifs_missing && file->state != msifs_overwrite)
continue;
/* compressed files are extracted in ready_media_for_file */
if (file->IsCompressed)
{
if (INVALID_FILE_ATTRIBUTES == GetFileAttributesW(file->TargetPath))
ERR("compressed file wasn't extracted (%s)\n",
debugstr_w(file->TargetPath));
continue;
}
rc = CopyFileW(file->SourcePath,file->TargetPath,FALSE);
if (!rc)
{
rc = GetLastError();
ERR("Unable to copy file (%s -> %s) (error %d)\n",
debugstr_w(file->SourcePath), debugstr_w(file->TargetPath), rc);
if (rc == ERROR_ALREADY_EXISTS && file->state == msifs_overwrite)
{
rc = 0;
}
else if (rc == ERROR_FILE_NOT_FOUND)
{
ERR("Source File Not Found! Continuing\n");
rc = 0;
}
else if (file->Attributes & msidbFileAttributesVital)
{
ERR("Ignoring Error and continuing (nonvital file)...\n");
rc = 0;
}
}
else
{
file->state = msifs_installed;
rc = ERROR_SUCCESS;
}
}
/* cleanup */
free_media_info( mi );
return rc;
}
static UINT ITERATE_DuplicateFiles(MSIRECORD *row, LPVOID param)
{
MSIPACKAGE *package = (MSIPACKAGE*)param;
WCHAR dest_name[0x100];
LPWSTR dest_path, dest;
LPCWSTR file_key, component;
DWORD sz;
DWORD rc;
MSICOMPONENT *comp;
MSIFILE *file;
component = MSI_RecordGetString(row,2);
comp = get_loaded_component(package,component);
if (!ACTION_VerifyComponentForAction( comp, INSTALLSTATE_LOCAL ))
{
TRACE("Skipping copy due to disabled component %s\n",
debugstr_w(component));
/* the action taken was the same as the current install state */
comp->Action = comp->Installed;
return ERROR_SUCCESS;
}
comp->Action = INSTALLSTATE_LOCAL;
file_key = MSI_RecordGetString(row,3);
if (!file_key)
{
ERR("Unable to get file key\n");
return ERROR_FUNCTION_FAILED;
}
rc = get_file_target(package,file_key,&file);
if (rc != ERROR_SUCCESS)
{
ERR("Original file unknown %s\n",debugstr_w(file_key));
return ERROR_SUCCESS;
}
if (MSI_RecordIsNull(row,4))
strcpyW(dest_name,strrchrW(file->TargetPath,'\\')+1);
else
{
sz=0x100;
MSI_RecordGetStringW(row,4,dest_name,&sz);
reduce_to_longfilename(dest_name);
}
if (MSI_RecordIsNull(row,5))
{
LPWSTR p;
dest_path = strdupW(file->TargetPath);
p = strrchrW(dest_path,'\\');
if (p)
*p=0;
}
else
{
LPCWSTR destkey;
destkey = MSI_RecordGetString(row,5);
dest_path = resolve_folder(package, destkey, FALSE,FALSE,NULL);
if (!dest_path)
{
/* try a Property */
dest_path = msi_dup_property( package, destkey );
if (!dest_path)
{
FIXME("Unable to get destination folder, try AppSearch properties\n");
return ERROR_SUCCESS;
}
}
}
dest = build_directory_name(2, dest_path, dest_name);
TRACE("Duplicating file %s to %s\n",debugstr_w(file->TargetPath),
debugstr_w(dest));
if (strcmpW(file->TargetPath,dest))
rc = !CopyFileW(file->TargetPath,dest,TRUE);
else
rc = ERROR_SUCCESS;
if (rc != ERROR_SUCCESS)
ERR("Failed to copy file %s -> %s, last error %ld\n",
debugstr_w(file->TargetPath), debugstr_w(dest_path), GetLastError());
FIXME("We should track these duplicate files as well\n");
msi_free(dest_path);
msi_free(dest);
msi_file_update_ui(package, file, szDuplicateFiles);
return ERROR_SUCCESS;
}
UINT ACTION_DuplicateFiles(MSIPACKAGE *package)
{
UINT rc;
MSIQUERY * view;
static const WCHAR ExecSeqQuery[] =
{'S','E','L','E','C','T',' ','*',' ','F','R','O','M',' ',
'`','D','u','p','l','i','c','a','t','e','F','i','l','e','`',0};
rc = MSI_DatabaseOpenViewW(package->db, ExecSeqQuery, &view);
if (rc != ERROR_SUCCESS)
return ERROR_SUCCESS;
rc = MSI_IterateRecords(view, NULL, ITERATE_DuplicateFiles, package);
msiobj_release(&view->hdr);
return rc;
}
/* compares the version of a file read from the filesystem and
* the version specified in the File table
*/
static int msi_compare_file_version( MSIFILE *file )
{
WCHAR version[MAX_PATH];
DWORD size;
UINT r;
size = MAX_PATH;
version[0] = '\0';
r = MsiGetFileVersionW( file->TargetPath, version, &size, NULL, NULL );
if ( r != ERROR_SUCCESS )
return 0;
return lstrcmpW( version, file->Version );
}
UINT ACTION_RemoveFiles( MSIPACKAGE *package )
{
MSIFILE *file;
LIST_FOR_EACH_ENTRY( file, &package->files, MSIFILE, entry )
{
MSIRECORD *uirow;
LPWSTR uipath, p;
if ( !file->Component )
continue;
if ( file->Component->Installed == INSTALLSTATE_LOCAL )
continue;
if ( file->state == msifs_installed )
ERR("removing installed file %s\n", debugstr_w(file->TargetPath));
if ( file->state != msifs_present )
continue;
/* only remove a file if the version to be installed
* is strictly newer than the old file
*/
if ( msi_compare_file_version( file ) >= 0 )
continue;
TRACE("removing %s\n", debugstr_w(file->File) );
if ( !DeleteFileW( file->TargetPath ) )
ERR("failed to delete %s\n", debugstr_w(file->TargetPath) );
file->state = msifs_missing;
/* the UI chunk */
uirow = MSI_CreateRecord( 9 );
MSI_RecordSetStringW( uirow, 1, file->FileName );
uipath = strdupW( file->TargetPath );
p = strrchrW(uipath,'\\');
if (p)
p[1]=0;
MSI_RecordSetStringW( uirow, 9, uipath);
ui_actiondata( package, szRemoveFiles, uirow);
msiobj_release( &uirow->hdr );
msi_free( uipath );
/* FIXME: call ui_progress here? */
}
return ERROR_SUCCESS;
}
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