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 extern void WINAPI Control_RunDLL(HWND hWnd, HINSTANCE hInst, LPCSTR cmd, DWORD nCmdShow);
  35
  36 typedef struct {
  37     HKEY  root;
  38     WCHAR *key;
  39     WCHAR *descr;
  40     WCHAR *command;
  41     int active;
  42 } uninst_entry;
  43 static uninst_entry *entries = NULL;
  44 static unsigned int numentries = 0;
  45 static int oldsel = -1;
  46 static WCHAR *sFilter;
  47
  48 static int FetchUninstallInformation(void);
  49 static void UninstallProgram(void);
  50 static int cmp_by_name(const void *a, const void *b);
  51
  52 static const WCHAR BackSlashW[] = { '\\', 0 };
  53 static const WCHAR DisplayNameW[] = {'D','i','s','p','l','a','y','N','a','m','e',0};
  54 static const WCHAR PathUninstallW[] = {
  55         'S','o','f','t','w','a','r','e','\\',
  56         'M','i','c','r','o','s','o','f','t','\\',
  57         'W','i','n','d','o','w','s','\\',
  58         'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
  59         'U','n','i','n','s','t','a','l','l',0 };
  60 static const WCHAR UninstallCommandlineW[] = {'U','n','i','n','s','t','a','l','l','S','t','r','i','n','g',0};
  61 static const WCHAR WindowsInstallerW[] = {'W','i','n','d','o','w','s','I','n','s','t','a','l','l','e','r',0};
  62 static const WCHAR SystemComponentW[] = {'S','y','s','t','e','m','C','o','m','p','o','n','e','n','t',0};
  63
  64 /**
  65  * Used to output program list when used with --list
  66  */
  67 static void ListUninstallPrograms(void)
  68 {
  69     unsigned int i;
  70     int lenDescr, lenKey;
  71     char *descr;
  72     char *key;
  73
  74     FetchUninstallInformation();
  75
  76     for (i=0; i < numentries; i++)
  77     {
  78         lenDescr = WideCharToMultiByte(CP_UNIXCP, 0, entries[i].descr, -1, NULL, 0, NULL, NULL);
  79         lenKey = WideCharToMultiByte(CP_UNIXCP, 0, entries[i].key, -1, NULL, 0, NULL, NULL);
  80         descr = HeapAlloc(GetProcessHeap(), 0, lenDescr);
  81         key = HeapAlloc(GetProcessHeap(), 0, lenKey);
  82         WideCharToMultiByte(CP_UNIXCP, 0, entries[i].descr, -1, descr, lenDescr, NULL, NULL);
  83         WideCharToMultiByte(CP_UNIXCP, 0, entries[i].key, -1, key, lenKey, NULL, NULL);
  84         printf("%s|||%s\n", key, descr);
  85         HeapFree(GetProcessHeap(), 0, descr);
  86         HeapFree(GetProcessHeap(), 0, key);
  87     }
  88 }
  89
  90
  91 static void RemoveSpecificProgram(WCHAR *nameW)
  92 {
  93     unsigned int i;
  94     int lenName;
  95     char *name;
  96
  97     FetchUninstallInformation();
  98
  99     for (i=0; i < numentries; i++)
 100     {
 101         if (CompareStringW(GetThreadLocale(), NORM_IGNORECASE, entries[i].key, -1, nameW, -1) == CSTR_EQUAL)
 102         {
 103             entries[i].active++;
 104             break;
 105         }
 106     }
 107
 108     if (i < numentries)
 109         UninstallProgram();
 110     else
 111     {
 112         lenName = WideCharToMultiByte(CP_UNIXCP, 0, nameW, -1, NULL, 0, NULL, NULL);
 113         name = HeapAlloc(GetProcessHeap(), 0, lenName);
 114         WideCharToMultiByte(CP_UNIXCP, 0, nameW, -1, name, lenName, NULL, NULL);
 115         fprintf(stderr, "Error: could not match application [%s]\n", name);
 116         HeapFree(GetProcessHeap(), 0, name);
 117     }
 118 }
 119
 120
 121 int wmain(int argc, WCHAR *argv[])
 122 {
 123     LPCWSTR token = NULL;
 124     static const WCHAR listW[] = { '-','-','l','i','s','t',0 };
 125     static const WCHAR removeW[] = { '-','-','r','e','m','o','v','e',0 };
 126     int i = 1;
 127
 128     while( i<argc )
 129     {
 130         token = argv[i++];
 131
 132         /* Handle requests just to list the applications */
 133         if( !lstrcmpW( token, listW ) )
 134         {
 135             ListUninstallPrograms();
 136             return 0;
 137         }
 138         else if( !lstrcmpW( token, removeW ) )
 139         {
 140             if( i >= argc )
 141             {
 142                 WINE_ERR( "The remove option requires a parameter.\n");
 143                 return 1;
 144             }
 145
 146             RemoveSpecificProgram( argv[i++] );
 147             return 0;
 148         }
 149         else
 150         {
 151             WINE_ERR( "unknown option %s\n",wine_dbgstr_w(token));
 152             return 1;
 153         }
 154     }
 155
 156     /* Start the GUI control panel */
 157     Control_RunDLL(GetDesktopWindow(), 0, "appwiz.cpl", SW_SHOW);
 158     return 1;
 159 }
 160
 161
 162 /**
 163  * Used to sort entries by name.
 164  */
 165 static int cmp_by_name(const void *a, const void *b)
 166 {
 167     return lstrcmpiW(((const uninst_entry *)a)->descr, ((const uninst_entry *)b)->descr);
 168 }
 169
 170
 171 /**
 172  * Fetch information from the uninstall key.
 173  */
 174 static int FetchFromRootKey(HKEY root)
 175 {
 176     HKEY hkeyApp;
 177     int i;
 178     DWORD sizeOfSubKeyName, displen, uninstlen, value, type, size;
 179     WCHAR subKeyName[256];
 180
 181     sizeOfSubKeyName = 255;
 182     for (i=0; RegEnumKeyExW( root, i, subKeyName, &sizeOfSubKeyName, NULL, NULL, NULL, NULL ) != ERROR_NO_MORE_ITEMS; ++i)
 183     {
 184         RegOpenKeyExW(root, subKeyName, 0, KEY_READ, &hkeyApp);
 185         if (!RegQueryValueExW(hkeyApp, SystemComponentW, NULL, &type, (LPBYTE)&value, &size) &&
 186             type == REG_DWORD && value == 1)
 187         {
 188             RegCloseKey(hkeyApp);
 189             sizeOfSubKeyName = 255;
 190             continue;
 191         }
 192         if (!RegQueryValueExW(hkeyApp, DisplayNameW, NULL, NULL, NULL, &displen))
 193         {
 194             WCHAR *command;
 195
 196             size = sizeof(value);
 197             if (!RegQueryValueExW(hkeyApp, WindowsInstallerW, NULL, &type, (LPBYTE)&value, &size) &&
 198                 type == REG_DWORD && value == 1)
 199             {
 200                 static const WCHAR fmtW[] = {'m','s','i','e','x','e','c',' ','/','x','%','s',0};
 201                 command = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(fmtW) + lstrlenW(subKeyName)) * sizeof(WCHAR));
 202                 wsprintfW(command, fmtW, subKeyName);
 203             }
 204             else if (!RegQueryValueExW(hkeyApp, UninstallCommandlineW, NULL, NULL, NULL, &uninstlen))
 205             {
 206                 command = HeapAlloc(GetProcessHeap(), 0, uninstlen);
 207                 RegQueryValueExW(hkeyApp, UninstallCommandlineW, 0, 0, (LPBYTE)command, &uninstlen);
 208             }
 209             else
 210             {
 211                 RegCloseKey(hkeyApp);
 212                 sizeOfSubKeyName = 255;
 213                 continue;
 214             }
 215             numentries++;
 216             entries = HeapReAlloc(GetProcessHeap(), 0, entries, numentries*sizeof(uninst_entry));
 217             entries[numentries-1].root = root;
 218             entries[numentries-1].key = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(subKeyName)+1)*sizeof(WCHAR));
 219             lstrcpyW(entries[numentries-1].key, subKeyName);
 220             entries[numentries-1].descr = HeapAlloc(GetProcessHeap(), 0, displen);
 221             RegQueryValueExW(hkeyApp, DisplayNameW, 0, 0, (LPBYTE)entries[numentries-1].descr, &displen);
 222             entries[numentries-1].command = command;
 223             entries[numentries-1].active = 0;
 224             WINE_TRACE("allocated entry #%d: %s (%s), %s\n",
 225             numentries, wine_dbgstr_w(entries[numentries-1].key), wine_dbgstr_w(entries[numentries-1].descr), wine_dbgstr_w(entries[numentries-1].command));
 226             if(sFilter != NULL && StrStrIW(entries[numentries-1].descr,sFilter)==NULL)
 227                 numentries--;
 228         }
 229         RegCloseKey(hkeyApp);
 230         sizeOfSubKeyName = 255;
 231     }
 232     return 1;
 233
 234 }
 235
 236 static int FetchUninstallInformation(void)
 237 {
 238     static const BOOL is_64bit = sizeof(void *) > sizeof(int);
 239     int rc = 0;
 240     HKEY root;
 241
 242     numentries = 0;
 243     oldsel = -1;
 244     if (!entries)
 245         entries = HeapAlloc(GetProcessHeap(), 0, sizeof(uninst_entry));
 246
 247     if (!RegOpenKeyExW(HKEY_LOCAL_MACHINE, PathUninstallW, 0, KEY_READ, &root))
 248     {
 249         rc |= FetchFromRootKey(root);
 250         RegCloseKey(root);
 251     }
 252     if (is_64bit &&
 253         !RegOpenKeyExW(HKEY_LOCAL_MACHINE, PathUninstallW, 0, KEY_READ|KEY_WOW64_32KEY, &root))
 254     {
 255         rc |= FetchFromRootKey(root);
 256         RegCloseKey(root);
 257     }
 258     if (!RegOpenKeyExW(HKEY_CURRENT_USER, PathUninstallW, 0, KEY_READ, &root))
 259     {
 260         rc |= FetchFromRootKey(root);
 261         RegCloseKey(root);
 262     }
 263
 264     qsort(entries, numentries, sizeof(uninst_entry), cmp_by_name);
 265     return rc;
 266 }
 267
 268 static void UninstallProgram(void)
 269 {
 270     unsigned int i;
 271     WCHAR errormsg[1024];
 272     BOOL res;
 273     STARTUPINFOW si;
 274     PROCESS_INFORMATION info;
 275     DWORD exit_code;
 276     HKEY hkey;
 277     for (i=0; i < numentries; i++)
 278     {
 279         if (!(entries[i].active)) /* don't uninstall this one */
 280             continue;
 281         WINE_TRACE("uninstalling %s\n", wine_dbgstr_w(entries[i].descr));
 282         memset(&si, 0, sizeof(STARTUPINFOW));
 283         si.cb = sizeof(STARTUPINFOW);
 284         si.wShowWindow = SW_NORMAL;
 285         res = CreateProcessW(NULL, entries[i].command, NULL, NULL, FALSE, 0, NULL, NULL, &si, &info);
 286         if (res)
 287         {   /* wait for the process to exit */
 288             WaitForSingleObject(info.hProcess, INFINITE);
 289             res = GetExitCodeProcess(info.hProcess, &exit_code);
 290             WINE_TRACE("%d: %08x\n", res, exit_code);
 291         }
 292         else
 293         {
 294             WCHAR sAppName[MAX_STRING_LEN];
 295             WCHAR sUninstallFailed[MAX_STRING_LEN];
 296             HINSTANCE hInst = GetModuleHandleW(0);
 297
 298             LoadStringW(hInst, IDS_APPNAME, sAppName, sizeof(sAppName)/sizeof(WCHAR));
 299             LoadStringW(hInst, IDS_UNINSTALLFAILED, sUninstallFailed, sizeof(sUninstallFailed)/sizeof(WCHAR));
 300             wsprintfW(errormsg, sUninstallFailed, entries[i].command);
 301             if(MessageBoxW(0, errormsg, sAppName, MB_YESNO | MB_ICONQUESTION)==IDYES)
 302             {
 303                 /* delete the application's uninstall entry */
 304                 RegOpenKeyExW(entries[i].root, PathUninstallW, 0, KEY_READ, &hkey);
 305                 RegDeleteKeyW(hkey, entries[i].key);
 306                 RegCloseKey(hkey);
 307             }
 308         }
 309     }
 310     WINE_TRACE("finished uninstall phase.\n");
 311 }