Sweden-Number/programs/uninstaller/main.c

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/*
* Uninstaller
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*
* Copyright 2000 Andreas Mohr
* Copyright 2004 Hannu Valtonen
* Copyright 2005 Jonathan Ernst
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <stdio.h>
#include <string.h>
#include <windows.h>
#include <shlwapi.h>
#include "resource.h"
#include "regstr.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(uninstaller);
typedef struct {
WCHAR *key;
WCHAR *descr;
WCHAR *command;
int active;
} uninst_entry;
static uninst_entry *entries = NULL;
static unsigned int numentries = 0;
static int list_need_update = 1;
static int oldsel = -1;
static WCHAR *sFilter;
static WCHAR sAppName[MAX_STRING_LEN];
static WCHAR sAboutTitle[MAX_STRING_LEN];
static WCHAR sAbout[MAX_STRING_LEN];
static WCHAR sRegistryKeyNotAvailable[MAX_STRING_LEN];
static WCHAR sUninstallFailed[MAX_STRING_LEN];
static int FetchUninstallInformation(void);
static void UninstallProgram(void);
static void UpdateList(HWND hList);
static int cmp_by_name(const void *a, const void *b);
static INT_PTR CALLBACK DlgProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam);
static const WCHAR BackSlashW[] = { '\\', 0 };
static const WCHAR DisplayNameW[] = {'D','i','s','p','l','a','y','N','a','m','e',0};
static const WCHAR PathUninstallW[] = {
'S','o','f','t','w','a','r','e','\\',
'M','i','c','r','o','s','o','f','t','\\',
'W','i','n','d','o','w','s','\\',
'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
'U','n','i','n','s','t','a','l','l',0 };
static const WCHAR UninstallCommandlineW[] = {'U','n','i','n','s','t','a','l','l','S','t','r','i','n','g',0};
/**
* Used to output program list when used with --list
*/
static void ListUninstallPrograms(void)
{
unsigned int i;
int lenDescr, lenKey;
char *descr;
char *key;
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if (! FetchUninstallInformation())
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return;
for (i=0; i < numentries; i++)
{
lenDescr = WideCharToMultiByte(CP_UNIXCP, 0, entries[i].descr, -1, NULL, 0, NULL, NULL);
lenKey = WideCharToMultiByte(CP_UNIXCP, 0, entries[i].key, -1, NULL, 0, NULL, NULL);
descr = HeapAlloc(GetProcessHeap(), 0, lenDescr);
key = HeapAlloc(GetProcessHeap(), 0, lenKey);
WideCharToMultiByte(CP_UNIXCP, 0, entries[i].descr, -1, descr, lenDescr, NULL, NULL);
WideCharToMultiByte(CP_UNIXCP, 0, entries[i].key, -1, key, lenKey, NULL, NULL);
printf("%s|||%s\n", key, descr);
HeapFree(GetProcessHeap(), 0, descr);
HeapFree(GetProcessHeap(), 0, key);
}
}
static void RemoveSpecificProgram(WCHAR *nameW)
{
unsigned int i;
int lenName;
char *name;
if (! FetchUninstallInformation())
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return;
for (i=0; i < numentries; i++)
{
if (lstrcmpW(entries[i].key, nameW) == 0)
{
entries[i].active++;
break;
}
}
if (i < numentries)
UninstallProgram();
else
{
lenName = WideCharToMultiByte(CP_UNIXCP, 0, nameW, -1, NULL, 0, NULL, NULL);
name = HeapAlloc(GetProcessHeap(), 0, lenName);
WideCharToMultiByte(CP_UNIXCP, 0, nameW, -1, name, lenName, NULL, NULL);
fprintf(stderr, "Error: could not match application [%s]\n", name);
HeapFree(GetProcessHeap(), 0, name);
}
}
int wmain(int argc, WCHAR *argv[])
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{
LPCWSTR token = NULL;
HINSTANCE hInst = GetModuleHandleW(0);
static const WCHAR listW[] = { '-','-','l','i','s','t',0 };
static const WCHAR removeW[] = { '-','-','r','e','m','o','v','e',0 };
int i = 1;
while( i<argc )
{
token = argv[i++];
/* Handle requests just to list the applications */
if( !lstrcmpW( token, listW ) )
{
ListUninstallPrograms();
return 0;
}
else if( !lstrcmpW( token, removeW ) )
{
if( i >= argc )
{
WINE_ERR( "The remove option requires a parameter.\n");
return 1;
}
RemoveSpecificProgram( argv[i++] );
return 0;
}
else
{
WINE_ERR( "unknown option %s\n",wine_dbgstr_w(token));
return 1;
}
}
/* Load MessageBox's strings */
LoadStringW(hInst, IDS_APPNAME, sAppName, sizeof(sAppName)/sizeof(WCHAR));
LoadStringW(hInst, IDS_ABOUTTITLE, sAboutTitle, sizeof(sAboutTitle)/sizeof(WCHAR));
LoadStringW(hInst, IDS_ABOUT, sAbout, sizeof(sAbout)/sizeof(WCHAR));
LoadStringW(hInst, IDS_REGISTRYKEYNOTAVAILABLE, sRegistryKeyNotAvailable, sizeof(sRegistryKeyNotAvailable)/sizeof(WCHAR));
LoadStringW(hInst, IDS_UNINSTALLFAILED, sUninstallFailed, sizeof(sUninstallFailed)/sizeof(WCHAR));
return DialogBoxW(hInst, MAKEINTRESOURCEW(IDD_UNINSTALLER), NULL, DlgProc);
}
/**
* Used to sort entries by name.
*/
static int cmp_by_name(const void *a, const void *b)
{
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return lstrcmpiW(((const uninst_entry *)a)->descr, ((const uninst_entry *)b)->descr);
}
/**
* Fetch informations from the uninstall key.
*/
static int FetchUninstallInformation(void)
{
HKEY hkeyUninst, hkeyApp;
int i;
DWORD sizeOfSubKeyName, displen, uninstlen;
WCHAR subKeyName[256];
WCHAR key_app[1024];
WCHAR *p;
numentries = 0;
oldsel = -1;
if (RegOpenKeyExW(HKEY_LOCAL_MACHINE, PathUninstallW, 0, KEY_READ, &hkeyUninst) != ERROR_SUCCESS)
{
MessageBoxW(0, sRegistryKeyNotAvailable, sAppName, MB_OK);
return 0;
}
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if (!entries)
entries = HeapAlloc(GetProcessHeap(), 0, sizeof(uninst_entry));
lstrcpyW(key_app, PathUninstallW);
lstrcatW(key_app, BackSlashW);
p = key_app+lstrlenW(PathUninstallW)+1;
sizeOfSubKeyName = 255;
for (i=0; RegEnumKeyExW( hkeyUninst, i, subKeyName, &sizeOfSubKeyName, NULL, NULL, NULL, NULL ) != ERROR_NO_MORE_ITEMS; ++i)
{
lstrcpyW(p, subKeyName);
RegOpenKeyExW(HKEY_LOCAL_MACHINE, key_app, 0, KEY_READ, &hkeyApp);
if ((RegQueryValueExW(hkeyApp, DisplayNameW, 0, 0, NULL, &displen) == ERROR_SUCCESS)
&& (RegQueryValueExW(hkeyApp, UninstallCommandlineW, 0, 0, NULL, &uninstlen) == ERROR_SUCCESS))
{
numentries++;
entries = HeapReAlloc(GetProcessHeap(), 0, entries, numentries*sizeof(uninst_entry));
entries[numentries-1].key = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(subKeyName)+1)*sizeof(WCHAR));
lstrcpyW(entries[numentries-1].key, subKeyName);
entries[numentries-1].descr = HeapAlloc(GetProcessHeap(), 0, displen);
RegQueryValueExW(hkeyApp, DisplayNameW, 0, 0, (LPBYTE)entries[numentries-1].descr, &displen);
entries[numentries-1].command = HeapAlloc(GetProcessHeap(), 0, uninstlen);
entries[numentries-1].active = 0;
RegQueryValueExW(hkeyApp, UninstallCommandlineW, 0, 0, (LPBYTE)entries[numentries-1].command, &uninstlen);
WINE_TRACE("allocated entry #%d: %s (%s), %s\n",
numentries, wine_dbgstr_w(entries[numentries-1].key), wine_dbgstr_w(entries[numentries-1].descr), wine_dbgstr_w(entries[numentries-1].command));
if(sFilter != NULL && StrStrIW(entries[numentries-1].descr,sFilter)==NULL)
numentries--;
}
RegCloseKey(hkeyApp);
sizeOfSubKeyName = 255;
}
qsort(entries, numentries, sizeof(uninst_entry), cmp_by_name);
RegCloseKey(hkeyUninst);
return 1;
}
static void UninstallProgram(void)
{
unsigned int i;
WCHAR errormsg[1024];
BOOL res;
STARTUPINFOW si;
PROCESS_INFORMATION info;
DWORD exit_code;
HKEY hkey;
for (i=0; i < numentries; i++)
{
if (!(entries[i].active)) /* don't uninstall this one */
continue;
WINE_TRACE("uninstalling %s\n", wine_dbgstr_w(entries[i].descr));
memset(&si, 0, sizeof(STARTUPINFOW));
si.cb = sizeof(STARTUPINFOW);
si.wShowWindow = SW_NORMAL;
res = CreateProcessW(NULL, entries[i].command, NULL, NULL, FALSE, 0, NULL, NULL, &si, &info);
if (res)
{ /* wait for the process to exit */
WaitForSingleObject(info.hProcess, INFINITE);
res = GetExitCodeProcess(info.hProcess, &exit_code);
WINE_TRACE("%d: %08lx\n", res, exit_code);
}
else
{
wsprintfW(errormsg, sUninstallFailed, entries[i].command);
if(MessageBoxW(0, errormsg, sAppName, MB_YESNO | MB_ICONQUESTION)==IDYES)
{
/* delete the application's uninstall entry */
RegOpenKeyExW(HKEY_LOCAL_MACHINE, PathUninstallW, 0, KEY_READ, &hkey);
RegDeleteKeyW(hkey, entries[i].key);
RegCloseKey(hkey);
}
}
}
WINE_TRACE("finished uninstall phase.\n");
list_need_update = 1;
}
static INT_PTR CALLBACK DlgProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam)
{
TEXTMETRICW tm;
HDC hdc;
HWND hList = GetDlgItem(hwnd, IDC_LIST);
switch(Message)
{
case WM_INITDIALOG:
hdc = GetDC(hwnd);
GetTextMetricsW(hdc, &tm);
UpdateList(hList);
ReleaseDC(hwnd, hdc);
break;
case WM_COMMAND:
switch(LOWORD(wParam))
{
case IDC_FILTER:
{
if (HIWORD(wParam) == EN_CHANGE)
{
int len = GetWindowTextLengthW(GetDlgItem(hwnd, IDC_FILTER));
list_need_update = 1;
if(len > 0)
{
sFilter = (WCHAR*)GlobalAlloc(GPTR, (len + 1)*sizeof(WCHAR));
GetDlgItemTextW(hwnd, IDC_FILTER, sFilter, len + 1);
}
else sFilter = NULL;
UpdateList(hList);
}
break;
}
case IDC_UNINSTALL:
{
int count = SendMessageW(hList, LB_GETSELCOUNT, 0, 0);
if(count != 0)
{
UninstallProgram();
UpdateList(hList);
}
break;
}
case IDC_LIST:
if (HIWORD(wParam) == LBN_SELCHANGE)
{
int sel = SendMessageW(hList, LB_GETCURSEL, 0, 0);
if (oldsel != -1)
{
entries[oldsel].active ^= 1; /* toggle */
WINE_TRACE("toggling %d old %s\n", entries[oldsel].active,
wine_dbgstr_w(entries[oldsel].descr));
}
entries[sel].active ^= 1; /* toggle */
WINE_TRACE("toggling %d %s\n", entries[sel].active,
wine_dbgstr_w(entries[oldsel].descr));
oldsel = sel;
}
break;
case IDC_ABOUT:
MessageBoxW(0, sAbout, sAboutTitle, MB_OK);
break;
case IDC_EXIT:
EndDialog(hwnd, 0);
break;
}
break;
default:
return FALSE;
}
return TRUE;
}
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static void UpdateList(HWND hList)
{
unsigned int i;
if (list_need_update)
{
int prevsel;
prevsel = SendMessageW(hList, LB_GETCURSEL, 0, 0);
if (!(FetchUninstallInformation()))
{
PostQuitMessage(0);
return;
}
SendMessageW(hList, LB_RESETCONTENT, 0, 0);
SendMessageW(hList, WM_SETREDRAW, FALSE, 0);
for (i=0; i < numentries; i++)
{
WINE_TRACE("adding %s\n", wine_dbgstr_w(entries[i].descr));
SendMessageW(hList, LB_ADDSTRING, 0, (LPARAM)entries[i].descr);
}
WINE_TRACE("setting prevsel %d\n", prevsel);
if (prevsel != -1)
SendMessageW(hList, LB_SETCURSEL, prevsel, 0 );
SendMessageW(hList, WM_SETREDRAW, TRUE, 0);
list_need_update = 0;
}
}