base/base_paths_win.cc

   1 // Copyright 2012 The Chromium Authors
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include <windows.h>
   6
   7 #include <KnownFolders.h>
   8 #include <shlobj.h>
   9
  10 #include "base/base_paths.h"
  11 #include "base/environment.h"
  12 #include "base/files/file_path.h"
  13 #include "base/path_service.h"
  14 #include "base/strings/string_util.h"
  15 #include "base/strings/utf_string_conversions.h"
  16 #include "base/win/current_module.h"
  17 #include "base/win/scoped_co_mem.h"
  18 #include "base/win/windows_version.h"
  19
  20 using base::FilePath;
  21
  22 namespace base {
  23
  24 bool PathProviderWin(int key, FilePath* result) {
  25   // We need to go compute the value. It would be nice to support paths with
  26   // names longer than MAX_PATH, but the system functions don't seem to be
  27   // designed for it either, with the exception of GetTempPath (but other
  28   // things will surely break if the temp path is too long, so we don't bother
  29   // handling it.
  30   wchar_t system_buffer[MAX_PATH];
  31   system_buffer[0] = 0;
  32
  33   FilePath cur;
  34   switch (key) {
  35     case base::FILE_EXE:
  36       if (GetModuleFileName(NULL, system_buffer, MAX_PATH) == 0)
  37         return false;
  38       cur = FilePath(system_buffer);
  39       break;
  40     case base::FILE_MODULE: {
  41       // the resource containing module is assumed to be the one that
  42       // this code lives in, whether that's a dll or exe
  43       if (GetModuleFileName(CURRENT_MODULE(), system_buffer, MAX_PATH) == 0)
  44         return false;
  45       cur = FilePath(system_buffer);
  46       break;
  47     }
  48     case base::DIR_WINDOWS:
  49       GetWindowsDirectory(system_buffer, MAX_PATH);
  50       cur = FilePath(system_buffer);
  51       break;
  52     case base::DIR_SYSTEM:
  53       GetSystemDirectory(system_buffer, MAX_PATH);
  54       cur = FilePath(system_buffer);
  55       break;
  56     case base::DIR_PROGRAM_FILESX86:
  57       if (win::OSInfo::GetArchitecture() != win::OSInfo::X86_ARCHITECTURE) {
  58         if (FAILED(SHGetFolderPath(NULL, CSIDL_PROGRAM_FILESX86, NULL,
  59                                    SHGFP_TYPE_CURRENT, system_buffer)))
  60           return false;
  61         cur = FilePath(system_buffer);
  62         break;
  63       }
  64       // Fall through to base::DIR_PROGRAM_FILES if we're on an X86 machine.
  65       [[fallthrough]];
  66     case base::DIR_PROGRAM_FILES:
  67       if (FAILED(SHGetFolderPath(NULL, CSIDL_PROGRAM_FILES, NULL,
  68                                  SHGFP_TYPE_CURRENT, system_buffer)))
  69         return false;
  70       cur = FilePath(system_buffer);
  71       break;
  72     case base::DIR_PROGRAM_FILES6432:
  73 #if !defined(_WIN64)
  74       if (base::win::OSInfo::GetInstance()->IsWowX86OnAMD64()) {
  75         std::unique_ptr<base::Environment> env(base::Environment::Create());
  76         std::string programfiles_w6432;
  77         // 32-bit process running in WOW64 sets ProgramW6432 environment
  78         // variable. See
  79         // https://msdn.microsoft.com/library/windows/desktop/aa384274.aspx.
  80         if (!env->GetVar("ProgramW6432", &programfiles_w6432))
  81           return false;
  82         // GetVar returns UTF8 - convert back to Wide.
  83         cur = FilePath(UTF8ToWide(programfiles_w6432));
  84         break;
  85       }
  86 #endif
  87       if (FAILED(SHGetFolderPath(NULL, CSIDL_PROGRAM_FILES, NULL,
  88                                  SHGFP_TYPE_CURRENT, system_buffer)))
  89         return false;
  90       cur = FilePath(system_buffer);
  91       break;
  92     case base::DIR_IE_INTERNET_CACHE:
  93       if (FAILED(SHGetFolderPath(NULL, CSIDL_INTERNET_CACHE, NULL,
  94                                  SHGFP_TYPE_CURRENT, system_buffer)))
  95         return false;
  96       cur = FilePath(system_buffer);
  97       break;
  98     case base::DIR_COMMON_START_MENU:
  99       if (FAILED(SHGetFolderPath(NULL, CSIDL_COMMON_PROGRAMS, NULL,
 100                                  SHGFP_TYPE_CURRENT, system_buffer)))
 101         return false;
 102       cur = FilePath(system_buffer);
 103       break;
 104     case base::DIR_START_MENU:
 105       if (FAILED(SHGetFolderPath(NULL, CSIDL_PROGRAMS, NULL, SHGFP_TYPE_CURRENT,
 106                                  system_buffer)))
 107         return false;
 108       cur = FilePath(system_buffer);
 109       break;
 110     case base::DIR_COMMON_STARTUP:
 111       if (FAILED(SHGetFolderPath(nullptr, CSIDL_COMMON_STARTUP, nullptr,
 112                                  SHGFP_TYPE_CURRENT, system_buffer)))
 113         return false;
 114       cur = FilePath(system_buffer);
 115       break;
 116     case base::DIR_USER_STARTUP:
 117       if (FAILED(SHGetFolderPath(nullptr, CSIDL_STARTUP, nullptr,
 118                                  SHGFP_TYPE_CURRENT, system_buffer)))
 119         return false;
 120       cur = FilePath(system_buffer);
 121       break;
 122     case base::DIR_ROAMING_APP_DATA:
 123       if (FAILED(SHGetFolderPath(NULL, CSIDL_APPDATA, NULL, SHGFP_TYPE_CURRENT,
 124                                  system_buffer)))
 125         return false;
 126       cur = FilePath(system_buffer);
 127       break;
 128     case base::DIR_COMMON_APP_DATA:
 129       if (FAILED(SHGetFolderPath(NULL, CSIDL_COMMON_APPDATA, NULL,
 130                                  SHGFP_TYPE_CURRENT, system_buffer)))
 131         return false;
 132       cur = FilePath(system_buffer);
 133       break;
 134     case base::DIR_LOCAL_APP_DATA:
 135       if (FAILED(SHGetFolderPath(NULL, CSIDL_LOCAL_APPDATA, NULL,
 136                                  SHGFP_TYPE_CURRENT, system_buffer)))
 137         return false;
 138       cur = FilePath(system_buffer);
 139       break;
 140     case base::DIR_SRC_TEST_DATA_ROOT: {
 141       FilePath executableDir;
 142       // On Windows, unit tests execute two levels deep from the source root.
 143       // For example:  chrome/{Debug|Release}/ui_tests.exe
 144       PathService::Get(base::DIR_EXE, &executableDir);
 145       cur = executableDir.DirName().DirName();
 146       break;
 147     }
 148     case base::DIR_APP_SHORTCUTS: {
 149       base::win::ScopedCoMem<wchar_t> path_buf;
 150       if (FAILED(SHGetKnownFolderPath(FOLDERID_ApplicationShortcuts, 0, NULL,
 151                                       &path_buf)))
 152         return false;
 153
 154       cur = FilePath(path_buf.get());
 155       break;
 156     }
 157     case base::DIR_USER_DESKTOP:
 158       if (FAILED(SHGetFolderPath(NULL, CSIDL_DESKTOPDIRECTORY, NULL,
 159                                  SHGFP_TYPE_CURRENT, system_buffer))) {
 160         return false;
 161       }
 162       cur = FilePath(system_buffer);
 163       break;
 164     case base::DIR_COMMON_DESKTOP:
 165       if (FAILED(SHGetFolderPath(NULL, CSIDL_COMMON_DESKTOPDIRECTORY, NULL,
 166                                  SHGFP_TYPE_CURRENT, system_buffer))) {
 167         return false;
 168       }
 169       cur = FilePath(system_buffer);
 170       break;
 171     case base::DIR_USER_QUICK_LAUNCH:
 172       if (!PathService::Get(base::DIR_ROAMING_APP_DATA, &cur))
 173         return false;
 174       // According to various sources, appending
 175       // "Microsoft\Internet Explorer\Quick Launch" to %appdata% is the only
 176       // reliable way to get the quick launch folder across all versions of
 177       // Windows.
 178       // http://stackoverflow.com/questions/76080/how-do-you-reliably-get-the-quick-
 179       // http://www.microsoft.com/technet/scriptcenter/resources/qanda/sept05/hey0901.mspx
 180       cur = cur.Append(FILE_PATH_LITERAL("Microsoft"))
 181                 .Append(FILE_PATH_LITERAL("Internet Explorer"))
 182                 .Append(FILE_PATH_LITERAL("Quick Launch"));
 183       break;
 184     case base::DIR_TASKBAR_PINS: {
 185       if (!PathService::Get(base::DIR_USER_QUICK_LAUNCH, &cur))
 186         return false;
 187       cur = cur.Append(FILE_PATH_LITERAL("User Pinned"))
 188                 .Append(FILE_PATH_LITERAL("TaskBar"));
 189       break;
 190     }
 191     case base::DIR_IMPLICIT_APP_SHORTCUTS:
 192       if (!PathService::Get(base::DIR_USER_QUICK_LAUNCH, &cur))
 193         return false;
 194       cur = cur.Append(FILE_PATH_LITERAL("User Pinned"))
 195                 .Append(FILE_PATH_LITERAL("ImplicitAppShortcuts"));
 196       break;
 197     case base::DIR_WINDOWS_FONTS:
 198       if (FAILED(SHGetFolderPath(NULL, CSIDL_FONTS, NULL, SHGFP_TYPE_CURRENT,
 199                                  system_buffer))) {
 200         return false;
 201       }
 202       cur = FilePath(system_buffer);
 203       break;
 204     default:
 205       return false;
 206   }
 207
 208   *result = cur;
 209   return true;
 210 }
 211
 212 }  // namespace base