programs/uninstaller/main.c

   1 /*
   2  * Uninstaller
   3  *
   4  * Copyright 2000 Andreas Mohr
   5  * Copyright 2004 Hannu Valtonen
   6  * Copyright 2005 Jonathan Ernst
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  *
  22  */
  23
  24 #include <stdio.h>
  25 #include <string.h>
  26 #include <windows.h>
  27 #include <shlwapi.h>
  28 #include "resource.h"
  29 #include "regstr.h"
  30 #include "wine/debug.h"
  31
  32 WINE_DEFAULT_DEBUG_CHANNEL(uninstaller);
  33
  34 typedef struct {
  35     WCHAR *key;
  36     WCHAR *descr;
  37     WCHAR *command;
  38     int active;
  39 } uninst_entry;
  40 static uninst_entry *entries = NULL;
  41 static unsigned int numentries = 0;
  42 static int list_need_update = 1;
  43 static int oldsel = -1;
  44 static WCHAR *sFilter;
  45 static WCHAR sAppName[MAX_STRING_LEN];
  46 static WCHAR sAboutTitle[MAX_STRING_LEN];
  47 static WCHAR sAbout[MAX_STRING_LEN];
  48 static WCHAR sRegistryKeyNotAvailable[MAX_STRING_LEN];
  49 static WCHAR sUninstallFailed[MAX_STRING_LEN];
  50
  51 static int FetchUninstallInformation(void);
  52 static void UninstallProgram(void);
  53 static void UpdateList(HWND hList);
  54 static int cmp_by_name(const void *a, const void *b);
  55 static INT_PTR CALLBACK DlgProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam);
  56
  57
  58 static const WCHAR BackSlashW[] = { '\\', 0 };
  59 static const WCHAR DisplayNameW[] = {'D','i','s','p','l','a','y','N','a','m','e',0};
  60 static const WCHAR PathUninstallW[] = {
  61         'S','o','f','t','w','a','r','e','\\',
  62         'M','i','c','r','o','s','o','f','t','\\',
  63         'W','i','n','d','o','w','s','\\',
  64         'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
  65         'U','n','i','n','s','t','a','l','l',0 };
  66 static const WCHAR UninstallCommandlineW[] = {'U','n','i','n','s','t','a','l','l','S','t','r','i','n','g',0};
  67
  68
  69 /**
  70  * Used to output program list when used with --list
  71  */
  72 static void ListUninstallPrograms(void)
  73 {
  74     unsigned int i;
  75     int lenDescr, lenKey;
  76     char *descr;
  77     char *key;
  78
  79     FetchUninstallInformation();
  80
  81     for (i=0; i < numentries; i++)
  82     {
  83         lenDescr = WideCharToMultiByte(CP_UNIXCP, 0, entries[i].descr, -1, NULL, 0, NULL, NULL);
  84         lenKey = WideCharToMultiByte(CP_UNIXCP, 0, entries[i].key, -1, NULL, 0, NULL, NULL);
  85         descr = HeapAlloc(GetProcessHeap(), 0, lenDescr);
  86         key = HeapAlloc(GetProcessHeap(), 0, lenKey);
  87         WideCharToMultiByte(CP_UNIXCP, 0, entries[i].descr, -1, descr, lenDescr, NULL, NULL);
  88         WideCharToMultiByte(CP_UNIXCP, 0, entries[i].key, -1, key, lenKey, NULL, NULL);
  89         printf("%s|||%s\n", key, descr);
  90         HeapFree(GetProcessHeap(), 0, descr);
  91         HeapFree(GetProcessHeap(), 0, key);
  92     }
  93 }
  94
  95
  96 static void RemoveSpecificProgram(WCHAR *nameW)
  97 {
  98     unsigned int i;
  99     int lenName;
 100     char *name;
 101
 102     FetchUninstallInformation();
 103
 104     for (i=0; i < numentries; i++)
 105     {
 106         if (lstrcmpW(entries[i].key, nameW) == 0)
 107         {
 108             entries[i].active++;
 109             break;
 110         }
 111     }
 112
 113     if (i < numentries)
 114         UninstallProgram();
 115     else
 116     {
 117         lenName = WideCharToMultiByte(CP_UNIXCP, 0, nameW, -1, NULL, 0, NULL, NULL);
 118         name = HeapAlloc(GetProcessHeap(), 0, lenName);
 119         WideCharToMultiByte(CP_UNIXCP, 0, nameW, -1, name, lenName, NULL, NULL);
 120         fprintf(stderr, "Error: could not match application [%s]\n", name);
 121         HeapFree(GetProcessHeap(), 0, name);
 122     }
 123 }
 124
 125
 126 int wmain(int argc, WCHAR *argv[])
 127 {
 128     LPCWSTR token = NULL;
 129     HINSTANCE hInst = GetModuleHandleW(0);
 130     static const WCHAR listW[] = { '-','-','l','i','s','t',0 };
 131     static const WCHAR removeW[] = { '-','-','r','e','m','o','v','e',0 };
 132     int i = 1;
 133
 134     while( i<argc )
 135     {
 136         token = argv[i++];
 137
 138         /* Handle requests just to list the applications */
 139         if( !lstrcmpW( token, listW ) )
 140         {
 141             ListUninstallPrograms();
 142             return 0;
 143         }
 144         else if( !lstrcmpW( token, removeW ) )
 145         {
 146             if( i >= argc )
 147             {
 148                 WINE_ERR( "The remove option requires a parameter.\n");
 149                 return 1;
 150             }
 151
 152             RemoveSpecificProgram( argv[i++] );
 153             return 0;
 154         }
 155         else
 156         {
 157             WINE_ERR( "unknown option %s\n",wine_dbgstr_w(token));
 158             return 1;
 159         }
 160     }
 161
 162     /* Load MessageBox's strings */
 163     LoadStringW(hInst, IDS_APPNAME, sAppName, sizeof(sAppName)/sizeof(WCHAR));
 164     LoadStringW(hInst, IDS_ABOUTTITLE, sAboutTitle, sizeof(sAboutTitle)/sizeof(WCHAR));
 165     LoadStringW(hInst, IDS_ABOUT, sAbout, sizeof(sAbout)/sizeof(WCHAR));
 166     LoadStringW(hInst, IDS_REGISTRYKEYNOTAVAILABLE, sRegistryKeyNotAvailable, sizeof(sRegistryKeyNotAvailable)/sizeof(WCHAR));
 167     LoadStringW(hInst, IDS_UNINSTALLFAILED, sUninstallFailed, sizeof(sUninstallFailed)/sizeof(WCHAR));
 168
 169     return DialogBoxW(hInst, MAKEINTRESOURCEW(IDD_UNINSTALLER), NULL, DlgProc);
 170 }
 171
 172
 173 /**
 174  * Used to sort entries by name.
 175  */
 176 static int cmp_by_name(const void *a, const void *b)
 177 {
 178     return lstrcmpiW(((const uninst_entry *)a)->descr, ((const uninst_entry *)b)->descr);
 179 }
 180
 181
 182 /**
 183  * Fetch information from the uninstall key.
 184  */
 185 static int FetchUninstallInformation(void)
 186 {
 187     HKEY hkeyUninst, hkeyApp;
 188     int i;
 189     DWORD sizeOfSubKeyName, displen, uninstlen;
 190     WCHAR subKeyName[256];
 191     WCHAR key_app[1024];
 192     WCHAR *p;
 193
 194     numentries = 0;
 195     oldsel = -1;
 196     if (RegOpenKeyExW(HKEY_LOCAL_MACHINE, PathUninstallW, 0, KEY_READ, &hkeyUninst) != ERROR_SUCCESS)
 197         return 0;
 198
 199     if (!entries)
 200         entries = HeapAlloc(GetProcessHeap(), 0, sizeof(uninst_entry));
 201
 202     lstrcpyW(key_app, PathUninstallW);
 203     lstrcatW(key_app, BackSlashW);
 204     p = key_app+lstrlenW(PathUninstallW)+1;
 205
 206     sizeOfSubKeyName = 255;
 207     for (i=0; RegEnumKeyExW( hkeyUninst, i, subKeyName, &sizeOfSubKeyName, NULL, NULL, NULL, NULL ) != ERROR_NO_MORE_ITEMS; ++i)
 208     {
 209         lstrcpyW(p, subKeyName);
 210         RegOpenKeyExW(HKEY_LOCAL_MACHINE, key_app, 0, KEY_READ, &hkeyApp);
 211         if ((RegQueryValueExW(hkeyApp, DisplayNameW, 0, 0, NULL, &displen) == ERROR_SUCCESS)
 212          && (RegQueryValueExW(hkeyApp, UninstallCommandlineW, 0, 0, NULL, &uninstlen) == ERROR_SUCCESS))
 213         {
 214             numentries++;
 215             entries = HeapReAlloc(GetProcessHeap(), 0, entries, numentries*sizeof(uninst_entry));
 216             entries[numentries-1].key = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(subKeyName)+1)*sizeof(WCHAR));
 217             lstrcpyW(entries[numentries-1].key, subKeyName);
 218             entries[numentries-1].descr = HeapAlloc(GetProcessHeap(), 0, displen);
 219             RegQueryValueExW(hkeyApp, DisplayNameW, 0, 0, (LPBYTE)entries[numentries-1].descr, &displen);
 220             entries[numentries-1].command = HeapAlloc(GetProcessHeap(), 0, uninstlen);
 221             entries[numentries-1].active = 0;
 222             RegQueryValueExW(hkeyApp, UninstallCommandlineW, 0, 0, (LPBYTE)entries[numentries-1].command, &uninstlen);
 223             WINE_TRACE("allocated entry #%d: %s (%s), %s\n",
 224             numentries, wine_dbgstr_w(entries[numentries-1].key), wine_dbgstr_w(entries[numentries-1].descr), wine_dbgstr_w(entries[numentries-1].command));
 225             if(sFilter != NULL && StrStrIW(entries[numentries-1].descr,sFilter)==NULL)
 226                 numentries--;
 227         }
 228         RegCloseKey(hkeyApp);
 229         sizeOfSubKeyName = 255;
 230     }
 231     qsort(entries, numentries, sizeof(uninst_entry), cmp_by_name);
 232     RegCloseKey(hkeyUninst);
 233     return 1;
 234 }
 235
 236
 237 static void UninstallProgram(void)
 238 {
 239     unsigned int i;
 240     WCHAR errormsg[1024];
 241     BOOL res;
 242     STARTUPINFOW si;
 243     PROCESS_INFORMATION info;
 244     DWORD exit_code;
 245     HKEY hkey;
 246     for (i=0; i < numentries; i++)
 247     {
 248         if (!(entries[i].active)) /* don't uninstall this one */
 249             continue;
 250         WINE_TRACE("uninstalling %s\n", wine_dbgstr_w(entries[i].descr));
 251         memset(&si, 0, sizeof(STARTUPINFOW));
 252         si.cb = sizeof(STARTUPINFOW);
 253         si.wShowWindow = SW_NORMAL;
 254         res = CreateProcessW(NULL, entries[i].command, NULL, NULL, FALSE, 0, NULL, NULL, &si, &info);
 255         if (res)
 256         {   /* wait for the process to exit */
 257             WaitForSingleObject(info.hProcess, INFINITE);
 258             res = GetExitCodeProcess(info.hProcess, &exit_code);
 259             WINE_TRACE("%d: %08x\n", res, exit_code);
 260         }
 261         else
 262         {
 263             wsprintfW(errormsg, sUninstallFailed, entries[i].command);
 264             if(MessageBoxW(0, errormsg, sAppName, MB_YESNO | MB_ICONQUESTION)==IDYES)
 265             {
 266                 /* delete the application's uninstall entry */
 267                 RegOpenKeyExW(HKEY_LOCAL_MACHINE, PathUninstallW, 0, KEY_READ, &hkey);
 268                 RegDeleteKeyW(hkey, entries[i].key);
 269                 RegCloseKey(hkey);
 270             }
 271         }
 272     }
 273     WINE_TRACE("finished uninstall phase.\n");
 274     list_need_update = 1;
 275 }
 276
 277
 278 static INT_PTR CALLBACK DlgProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam)
 279 {
 280     TEXTMETRICW tm;
 281     HDC hdc;
 282     HWND hList = GetDlgItem(hwnd, IDC_LIST);
 283     switch(Message)
 284     {
 285         case WM_INITDIALOG:
 286             hdc = GetDC(hwnd);
 287             GetTextMetricsW(hdc, &tm);
 288             UpdateList(hList);
 289             ReleaseDC(hwnd, hdc);
 290             break;
 291         case WM_COMMAND:
 292             switch(LOWORD(wParam))
 293             {
 294                 case IDC_FILTER:
 295                 {
 296                     if (HIWORD(wParam) == EN_CHANGE)
 297                     {
 298                         int len = GetWindowTextLengthW(GetDlgItem(hwnd, IDC_FILTER));
 299                         list_need_update = 1;
 300                         if(len > 0)
 301                         {
 302                             sFilter = (WCHAR*)GlobalAlloc(GPTR, (len + 1)*sizeof(WCHAR));
 303                             GetDlgItemTextW(hwnd, IDC_FILTER, sFilter, len + 1);
 304                         }
 305                         else sFilter = NULL;
 306                         UpdateList(hList);
 307                     }
 308                     break;
 309                 }
 310                 case IDC_UNINSTALL:
 311                 {
 312                     int count = SendMessageW(hList, LB_GETSELCOUNT, 0, 0);
 313                     if(count != 0)
 314                     {
 315                         UninstallProgram();
 316                         UpdateList(hList);
 317                     }
 318                     break;
 319                 }
 320                 case IDC_LIST:
 321                     if (HIWORD(wParam) == LBN_SELCHANGE)
 322                     {
 323                        int sel = SendMessageW(hList, LB_GETCURSEL, 0, 0);
 324                        if (oldsel != -1)
 325                        {
 326                            entries[oldsel].active ^= 1; /* toggle */
 327                            WINE_TRACE("toggling %d old %s\n", entries[oldsel].active,
 328                            wine_dbgstr_w(entries[oldsel].descr));
 329                        }
 330                        entries[sel].active ^= 1; /* toggle */
 331                        WINE_TRACE("toggling %d %s\n", entries[sel].active,
 332                        wine_dbgstr_w(entries[sel].descr));
 333                        oldsel = sel;
 334                    }
 335                     break;
 336                 case IDC_ABOUT:
 337                     MessageBoxW(0, sAbout, sAboutTitle, MB_OK);
 338                     break;
 339                 case IDCANCEL:
 340                 case IDC_EXIT:
 341                     EndDialog(hwnd, 0);
 342                     break;
 343             }
 344             break;
 345         default:
 346             return FALSE;
 347     }
 348     return TRUE;
 349 }
 350
 351
 352 static void UpdateList(HWND hList)
 353 {
 354     unsigned int i;
 355     if (list_need_update)
 356     {
 357         int prevsel;
 358         prevsel = SendMessageW(hList, LB_GETCURSEL, 0, 0);
 359         if (!(FetchUninstallInformation()))
 360         {
 361             MessageBoxW(0, sRegistryKeyNotAvailable, sAppName, MB_OK);
 362             PostQuitMessage(0);
 363             return;
 364         }
 365         SendMessageW(hList, LB_RESETCONTENT, 0, 0);
 366         SendMessageW(hList, WM_SETREDRAW, FALSE, 0);
 367         for (i=0; i < numentries; i++)
 368         {
 369             WINE_TRACE("adding %s\n", wine_dbgstr_w(entries[i].descr));
 370             SendMessageW(hList, LB_ADDSTRING, 0, (LPARAM)entries[i].descr);
 371         }
 372         WINE_TRACE("setting prevsel %d\n", prevsel);
 373         if (prevsel != -1)
 374             SendMessageW(hList, LB_SETCURSEL, prevsel, 0 );
 375         SendMessageW(hList, WM_SETREDRAW, TRUE, 0);
 376         list_need_update = 0;
 377     }
 378 }