gecko/toolkit/mozapps/installer/wince/uninstall/Uninstall.cpp

544 lines
16 KiB
C++

/* -*- Mode: C++; c-basic-offset: 2; tab-width: 8; indent-tabs-mode: nil; -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Fennec Installer for WinCE.
*
* The Initial Developer of the Original Code is The Mozilla Foundation.
*
* Portions created by the Initial Developer are Copyright (C) 2009
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Alex Pakhotin <alexp@mozilla.com> (original author)
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/**
*
* Uninstall.cpp : Mozilla Fennec Uninstaller
*
*/
#include <windows.h>
#include <aygshell.h>
#include <cfgmgrapi.h>
#include "nsSetupStrings.h"
#include "resource.h"
#define WM_DIALOGCREATED (WM_USER + 1)
const WCHAR c_sStringsFile[] = L"setup.ini";
nsSetupStrings Strings;
BOOL g_bRunFromSetupDll = FALSE;
WCHAR g_sInstallPath[MAX_PATH];
WCHAR g_sUninstallPath[MAX_PATH];
HWND g_hDlg = NULL;
const WCHAR c_sAppRegKeyTemplate[] = L"Software\\Mozilla\\%s";
const DWORD c_nTempBufSize = MAX_PATH * 2;
const WCHAR c_sRemoveParam[] = L"[remove]";
const WCHAR c_sSetupParam[] = L"[setup]"; // means executed by Setup.dll
// Retry counter for the file/directory deletion
int nTotalRetries = 0;
const int c_nMaxTotalRetries = 10;
const int c_nMaxOneFileRetries = 6;
const int c_nRetryDelay = 500; //milliseconds
int g_nDirsDeleted = 0;
const int c_nMaxDirs = 25; // approximate number of dirs just to show some progress
enum {
ErrOK = 0,
ErrCancel = IDCANCEL,
ErrNoStrings = -1,
ErrInstallationNotFound = -2,
ErrShutdownFailed = -3,
};
int g_nResult = ErrOK;
// Forward declarations
BOOL GetModulePath(WCHAR *sPath);
BOOL LoadStrings();
BOOL GetInstallPath(WCHAR *sPath);
BOOL DeleteShortcut(HWND hwndParent);
BOOL DeleteDirectory(const WCHAR* sPathToDelete);
BOOL DeleteRegistryKey();
BOOL CopyAndLaunch();
BOOL ShutdownFastStartService(const WCHAR *sInstallPath);
BOOL RunSystemUninstall();
BOOL CALLBACK DlgUninstall(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam);
BOOL OnDialogInit(HWND hDlg);
BOOL OnDialogCreated(HWND hDlg);
int OnUninstall(HWND hDlg);
void UpdateProgress();
///////////////////////////////////////////////////////////////////////////////
// Main
//
int WINAPI WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPTSTR lpCmdLine,
int nCmdShow)
{
HWND hWnd = GetForegroundWindow();
*g_sUninstallPath = 0;
WCHAR *sCommandLine = GetCommandLine();
WCHAR *sRemoveParam = wcsstr(sCommandLine, c_sRemoveParam);
WCHAR g_bRunFromSetupDll = (wcsstr(sCommandLine, c_sSetupParam) != NULL);
if (sRemoveParam != NULL)
{
// Launched from a temp directory with parameters "[remove] \Program Files\Fennec\"
wcscpy(g_sUninstallPath, sRemoveParam + wcslen(c_sRemoveParam) + 1);
}
else
{
// Just copy this EXE and launch it from a temp location with a special parameter
// to delete itself in the installation directory
if (CopyAndLaunch())
return ErrOK;
}
// Perform uninstallation when executed with a special parameter
// (or in case when CopyAndLaunch failed - just execute in place)
if (!LoadStrings())
{
MessageBoxW(hWnd, L"Cannot find the strings file.", L"Uninstall", MB_OK|MB_ICONWARNING);
return ErrNoStrings;
}
if (GetInstallPath(g_sInstallPath))
{
int nDlgResult = DialogBox(hInstance, (LPCTSTR)IDD_MAIN, NULL, (DLGPROC)DlgUninstall);
if (nDlgResult != ErrOK)
g_nResult = nDlgResult;
}
else
{
MessageBoxW(hWnd, Strings.GetString(StrID_InstallationNotFound),
Strings.GetString(StrID_UninstallCaption), MB_OK|MB_ICONINFORMATION);
return ErrInstallationNotFound;
}
return g_nResult;
}
int Uninstall(HWND hWnd)
{
// Remove all installed files
DeleteDirectory(g_sInstallPath);
DeleteShortcut(hWnd);
DeleteRegistryKey();
if (!g_bRunFromSetupDll)
RunSystemUninstall();
// TODO: May probably handle errors during deletion (such as locked directories)
// and notify user. Right now just return OK.
return ErrOK;
}
///////////////////////////////////////////////////////////////////////////////
// Dialog
//
BOOL CALLBACK DlgUninstall(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message)
{
case WM_INITDIALOG:
return OnDialogInit(hDlg);
case WM_DIALOGCREATED:
return OnDialogCreated(hDlg);
case WM_COMMAND:
switch (LOWORD(wParam))
{
case IDOK:
EndDialog(hDlg, ErrOK);
return TRUE;
case IDCANCEL:
EndDialog(hDlg, ErrCancel);
return TRUE;
case IDC_BTN_UNINSTALL:
g_nResult = OnUninstall(hDlg);
return TRUE;
}
break;
case WM_CLOSE:
EndDialog(hDlg, ErrCancel);
return TRUE;
}
return FALSE;
}
BOOL OnDialogCreated(HWND)
{
ShutdownFastStartService(g_sInstallPath);
// Just continue regardless of the result
return TRUE;
}
BOOL OnDialogInit(HWND hDlg)
{
g_hDlg = hDlg;
PostMessage(hDlg, WM_DIALOGCREATED, 0, 0);
SetWindowText(hDlg, Strings.GetString(StrID_UninstallCaption));
SHINITDLGINFO shidi;
shidi.dwMask = SHIDIM_FLAGS;
shidi.dwFlags = SHIDIF_SIPDOWN | SHIDIF_EMPTYMENU;
shidi.hDlg = hDlg;
SHInitDialog(&shidi);
// Hide the Done button
SHDoneButton(hDlg, SHDB_HIDE);
// Init controls
WCHAR sMsg[c_nTempBufSize];
_snwprintf(sMsg, c_nTempBufSize, L"%s %s", Strings.GetString(StrID_FilesWillBeRemoved), g_sInstallPath);
SetWindowText(GetDlgItem(hDlg, IDC_STATIC_TEXT), sMsg);
SetWindowText(GetDlgItem(hDlg, IDC_QUESTION_TEXT), Strings.GetString(StrID_AreYouSure));
SetWindowText(GetDlgItem(hDlg, IDC_BTN_UNINSTALL), L"OK"); // TODO: Use localized text "Uninstall"
SetWindowText(GetDlgItem(hDlg, IDCANCEL), Strings.GetString(StrID_Cancel));
ShowWindow(GetDlgItem(hDlg, IDC_PROGRESS), SW_HIDE);
ShowWindow(GetDlgItem(hDlg, IDOK), SW_HIDE);
return TRUE;
}
int OnUninstall(HWND hDlg)
{
SetWindowText(GetDlgItem(hDlg, IDC_QUESTION_TEXT), L"");
ShowWindow(GetDlgItem(hDlg, IDC_BTN_UNINSTALL), SW_HIDE);
ShowWindow(GetDlgItem(hDlg, IDCANCEL), SW_HIDE);
ShowWindow(GetDlgItem(hDlg, IDC_PROGRESS), SW_SHOW);
SendMessage(GetDlgItem(hDlg, IDC_PROGRESS), PBM_SETRANGE, 0, (LPARAM) MAKELPARAM (0, c_nMaxDirs));
SendMessage(GetDlgItem(hDlg, IDC_PROGRESS), PBM_SETPOS, 0, 0);
UpdateWindow(hDlg); // make sure the text is drawn
int ret = Uninstall(hDlg);
if (ret == ErrOK)
{
SetWindowText(GetDlgItem(hDlg, IDC_STATIC_TEXT), Strings.GetString(StrID_UninstalledSuccessfully));
}
else
{
//TODO: Localize this message. It might be shown later when the errors will be handled
SetWindowText(GetDlgItem(hDlg, IDC_STATIC_TEXT), L"There were errors during uninstallation.");
}
ShowWindow(GetDlgItem(hDlg, IDC_PROGRESS), SW_HIDE);
ShowWindow(GetDlgItem(hDlg, IDOK), SW_SHOW);
return ret;
}
void UpdateProgress()
{
SendMessage(GetDlgItem(g_hDlg, IDC_PROGRESS), PBM_SETPOS, (WPARAM)g_nDirsDeleted, 0);
}
///////////////////////////////////////////////////////////////////////////////
// Utility functions
//
BOOL LoadStrings()
{
// Locate and load the strings file used by installer
if (*g_sUninstallPath == 0)
GetModulePath(g_sUninstallPath);
WCHAR sStringsFile[MAX_PATH];
_snwprintf(sStringsFile, MAX_PATH, L"%s\\%s", g_sUninstallPath, c_sStringsFile);
return Strings.LoadStrings(sStringsFile);
}
BOOL GetModulePath(WCHAR *sPath)
{
if (GetModuleFileName(NULL, sPath, MAX_PATH) == 0)
return FALSE;
WCHAR *sSlash = wcsrchr(sPath, L'\\') + 1;
*sSlash = L'\0'; // cut the file name
return TRUE;
}
BOOL GetInstallPath(WCHAR *sPath)
{
HKEY hKey;
WCHAR sRegFennecKey[MAX_PATH];
_snwprintf(sRegFennecKey, MAX_PATH, c_sAppRegKeyTemplate, Strings.GetString(StrID_AppShortName));
LONG result = RegOpenKeyEx(HKEY_LOCAL_MACHINE, sRegFennecKey, 0, KEY_ALL_ACCESS, &hKey);
if (result == ERROR_SUCCESS)
{
DWORD dwType = NULL;
DWORD dwCount = MAX_PATH * sizeof(WCHAR);
result = RegQueryValueEx(hKey, L"Path", NULL, &dwType, (LPBYTE)sPath, &dwCount);
RegCloseKey(hKey);
}
return (result == ERROR_SUCCESS);
}
BOOL DeleteDirectory(const WCHAR* sPathToDelete)
{
BOOL bResult = TRUE;
HANDLE hFile;
WCHAR sFilePath[MAX_PATH];
WCHAR sPattern[MAX_PATH];
WIN32_FIND_DATA findData;
wcscpy(sPattern, sPathToDelete);
wcscat(sPattern, L"\\*.*");
hFile = FindFirstFile(sPattern, &findData);
if (hFile != INVALID_HANDLE_VALUE)
{
do
{
if (findData.cFileName[0] != L'.')
{
_snwprintf(sFilePath, MAX_PATH, L"%s\\%s", sPathToDelete, findData.cFileName);
if (findData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
{
// Delete subdirectory
if (!DeleteDirectory(sFilePath))
bResult = FALSE;
}
else
{
// Set file attributes
if (SetFileAttributes(sFilePath, FILE_ATTRIBUTE_NORMAL))
{
// Delete file
if (!DeleteFile(sFilePath) && nTotalRetries < c_nMaxTotalRetries)
{
BOOL bDeleted = FALSE;
nTotalRetries++;
for (int nRetry = 0; nRetry < c_nMaxOneFileRetries; nRetry++)
{
Sleep(c_nRetryDelay);
if (DeleteFile(sFilePath))
{
bDeleted = TRUE;
break;
}
}
if (!bDeleted)
bResult = FALSE;
}
}
}
}
} while (FindNextFile(hFile, &findData));
// Close handle
FindClose(hFile);
}
// Set directory attributes
if (SetFileAttributes(sPathToDelete, FILE_ATTRIBUTE_NORMAL))
{
g_nDirsDeleted++;
UpdateProgress();
// Delete directory
if (!RemoveDirectory(sPathToDelete) && nTotalRetries < c_nMaxTotalRetries)
{
BOOL bDeleted = FALSE;
nTotalRetries++;
for (int nRetry = 0; nRetry < c_nMaxOneFileRetries; nRetry++)
{
Sleep(c_nRetryDelay);
if (RemoveDirectory(sPathToDelete))
{
bDeleted = TRUE;
break;
}
}
if (!bDeleted)
bResult = FALSE;
}
}
return bResult;
}
// Deletes shortcuts for Fennec and FastStart service created by the installer.
// Note: The shortcut names have to be in sync with CreateShortcut in nsInstallerDlg.cpp
BOOL DeleteShortcut(HWND hwndParent)
{
BOOL result = FALSE;
WCHAR sProgramsPath[MAX_PATH];
if (SHGetSpecialFolderPath(hwndParent, sProgramsPath, CSIDL_PROGRAMS, FALSE))
{
WCHAR sShortcutPath[MAX_PATH];
_snwprintf(sShortcutPath, MAX_PATH, L"%s\\%s.lnk", sProgramsPath, Strings.GetString(StrID_AppShortName));
if(SetFileAttributes(sShortcutPath, FILE_ATTRIBUTE_NORMAL))
result = DeleteFile(sShortcutPath);
}
// Handle faststart shortcut
WCHAR sStartupPath[MAX_PATH];
if (SHGetSpecialFolderPath(hwndParent, sStartupPath, CSIDL_STARTUP, FALSE))
{
WCHAR sStartupShortcutPath[MAX_PATH];
_snwprintf(sStartupShortcutPath, MAX_PATH, L"%s\\%sFastStart.lnk", sStartupPath, Strings.GetString(StrID_AppShortName));
// It may not exist - just ignore that
if(SetFileAttributes(sStartupShortcutPath, FILE_ATTRIBUTE_NORMAL))
DeleteFile(sStartupShortcutPath);
}
return result;
}
BOOL DeleteRegistryKey()
{
WCHAR sRegFennecKey[MAX_PATH];
_snwprintf(sRegFennecKey, MAX_PATH, c_sAppRegKeyTemplate, Strings.GetString(StrID_AppShortName));
LONG result = RegDeleteKey(HKEY_LOCAL_MACHINE, sRegFennecKey);
return (result == ERROR_SUCCESS);
}
// Copy to a temp directory and launch from there
BOOL CopyAndLaunch()
{
WCHAR sNewName[] = L"\\Temp\\uninstall.exe";
WCHAR sModule[MAX_PATH];
if (GetModuleFileName(NULL, sModule, MAX_PATH) == 0 || !GetModulePath(g_sUninstallPath))
return FALSE;
if (CopyFile(sModule, sNewName, FALSE))
{
PROCESS_INFORMATION pi;
WCHAR sParam[c_nTempBufSize];
if (g_bRunFromSetupDll)
_snwprintf(sParam, c_nTempBufSize, L"%s %s %s", c_sSetupParam, c_sRemoveParam, g_sUninstallPath);
else
_snwprintf(sParam, c_nTempBufSize, L"%s %s", c_sRemoveParam, g_sUninstallPath);
// Launch "\Temp\uninstall.exe remove \Program Files\Fennec\"
return CreateProcess(sNewName, sParam, NULL, NULL, FALSE, 0, NULL, NULL, NULL, &pi);
}
else
return FALSE;
}
BOOL ConvertToChar(const WCHAR *wstr, char *str, DWORD bufSize)
{
return 0 != WideCharToMultiByte(CP_ACP, 0, wstr, -1, str, bufSize, NULL, NULL);
}
BOOL ShutdownFastStartService(const WCHAR *wsInstallPath)
{
BOOL result = TRUE;
// Class name: appName + "MessageWindow"
WCHAR sClassName[c_nTempBufSize];
_snwprintf(sClassName, c_nTempBufSize, L"%s%s", Strings.GetString(StrID_AppShortName), L"MessageWindow");
HWND handle = ::FindWindowW(sClassName, NULL);
if (handle)
{
char sPath[MAX_PATH];
ConvertToChar(wsInstallPath, sPath, MAX_PATH);
size_t pathLen = strlen(sPath);
if (pathLen > 0 && sPath[pathLen-1] != '\\')
{
strcat(sPath, "\\");
pathLen++;
}
char sCopyData[MAX_PATH * 3];
_snprintf(sCopyData, MAX_PATH * 2, "\"%s%S.exe\" -shutdown-faststart", sPath, Strings.GetString(StrID_AppShortName));
size_t cmdLineLen = strlen(sCopyData);
char *sRest = sCopyData + cmdLineLen + 1;
strcpy(sRest, sPath);
COPYDATASTRUCT cds = {
1,
pathLen + 1 + cmdLineLen,
(void*) sCopyData
};
::SendMessage(handle, WM_COPYDATA, 0, (LPARAM)&cds);
// Wait until it's shut down or for some timeout
for (int i = 0; i < 20 && handle; i++)
{
Sleep(500);
handle = ::FindWindowW(sClassName, NULL);
}
// The window must not exist if the service shut down properly
result = (handle == NULL);
}
return result;
}
// Remove the part installed from the CAB
BOOL RunSystemUninstall()
{
WCHAR sXML[c_nTempBufSize];
LPWSTR sXMLOut = NULL;
_snwprintf(sXML, c_nTempBufSize,
L"<wap-provisioningdoc>"
L" <characteristic type=\"UnInstall\">"
L" <characteristic type=\"%s\">"
L" <parm name=\"uninstall\" value=\"1\" />"
L" </characteristic>"
L" </characteristic>"
L"</wap-provisioningdoc>",
Strings.GetString(StrID_AppLongName));
HRESULT hr = DMProcessConfigXML(sXML, CFGFLAG_PROCESS, &sXMLOut);
delete[] sXMLOut;
return hr == S_OK;
}