base/base_paths_win.cc

   1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
   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 "base/base_paths_win.h"
   6
   7 #include <windows.h>
   8 #include <shlobj.h>
   9
  10 #include "base/file_path.h"
  11 #include "base/file_util.h"
  12 #include "base/path_service.h"
  13 #include "base/win/windows_version.h"
  14
  15 // http://blogs.msdn.com/oldnewthing/archive/2004/10/25/247180.aspx
  16 extern "C" IMAGE_DOS_HEADER __ImageBase;
  17
  18 namespace base {
  19
  20 bool PathProviderWin(int key, FilePath* result) {
  21
  22   // We need to go compute the value. It would be nice to support paths with
  23   // names longer than MAX_PATH, but the system functions don't seem to be
  24   // designed for it either, with the exception of GetTempPath (but other
  25   // things will surely break if the temp path is too long, so we don't bother
  26   // handling it.
  27   wchar_t system_buffer[MAX_PATH];
  28   system_buffer[0] = 0;
  29
  30   FilePath cur;
  31   switch (key) {
  32     case base::FILE_EXE:
  33       GetModuleFileName(NULL, system_buffer, MAX_PATH);
  34       cur = FilePath(system_buffer);
  35       break;
  36     case base::FILE_MODULE: {
  37       // the resource containing module is assumed to be the one that
  38       // this code lives in, whether that's a dll or exe
  39       HMODULE this_module = reinterpret_cast<HMODULE>(&__ImageBase);
  40       GetModuleFileName(this_module, system_buffer, MAX_PATH);
  41       cur = FilePath(system_buffer);
  42       break;
  43     }
  44     case base::DIR_WINDOWS:
  45       GetWindowsDirectory(system_buffer, MAX_PATH);
  46       cur = FilePath(system_buffer);
  47       break;
  48     case base::DIR_SYSTEM:
  49       GetSystemDirectory(system_buffer, MAX_PATH);
  50       cur = FilePath(system_buffer);
  51       break;
  52     case base::DIR_PROGRAM_FILESX86:
  53       if (base::win::OSInfo::GetInstance()->architecture() !=
  54           base::win::OSInfo::X86_ARCHITECTURE) {
  55         if (FAILED(SHGetFolderPath(NULL, CSIDL_PROGRAM_FILESX86, NULL,
  56                                    SHGFP_TYPE_CURRENT, system_buffer)))
  57           return false;
  58         cur = FilePath(system_buffer);
  59         break;
  60       }
  61       // Fall through to base::DIR_PROGRAM_FILES if we're on an X86 machine.
  62     case base::DIR_PROGRAM_FILES:
  63       if (FAILED(SHGetFolderPath(NULL, CSIDL_PROGRAM_FILES, NULL,
  64                                  SHGFP_TYPE_CURRENT, system_buffer)))
  65         return false;
  66       cur = FilePath(system_buffer);
  67       break;
  68     case base::DIR_IE_INTERNET_CACHE:
  69       if (FAILED(SHGetFolderPath(NULL, CSIDL_INTERNET_CACHE, NULL,
  70                                  SHGFP_TYPE_CURRENT, system_buffer)))
  71         return false;
  72       cur = FilePath(system_buffer);
  73       break;
  74     case base::DIR_COMMON_START_MENU:
  75       if (FAILED(SHGetFolderPath(NULL, CSIDL_COMMON_PROGRAMS, NULL,
  76                                  SHGFP_TYPE_CURRENT, system_buffer)))
  77         return false;
  78       cur = FilePath(system_buffer);
  79       break;
  80     case base::DIR_START_MENU:
  81       if (FAILED(SHGetFolderPath(NULL, CSIDL_PROGRAMS, NULL,
  82                                  SHGFP_TYPE_CURRENT, system_buffer)))
  83         return false;
  84       cur = FilePath(system_buffer);
  85       break;
  86     case base::DIR_APP_DATA:
  87       if (FAILED(SHGetFolderPath(NULL, CSIDL_APPDATA, NULL, SHGFP_TYPE_CURRENT,
  88                                  system_buffer)))
  89         return false;
  90       cur = FilePath(system_buffer);
  91       break;
  92     case base::DIR_PROFILE:
  93       if (FAILED(SHGetFolderPath(NULL, CSIDL_PROFILE, NULL, SHGFP_TYPE_CURRENT,
  94                                  system_buffer)))
  95         return false;
  96       cur = FilePath(system_buffer);
  97       break;
  98     case base::DIR_LOCAL_APP_DATA_LOW:
  99       if (win::GetVersion() < win::VERSION_VISTA) {
 100         return false;
 101       }
 102       // TODO(nsylvain): We should use SHGetKnownFolderPath instead. Bug 1281128
 103       if (FAILED(SHGetFolderPath(NULL, CSIDL_APPDATA, NULL, SHGFP_TYPE_CURRENT,
 104                                  system_buffer)))
 105         return false;
 106       cur = FilePath(system_buffer).DirName().AppendASCII("LocalLow");
 107       break;
 108     case base::DIR_LOCAL_APP_DATA:
 109       if (FAILED(SHGetFolderPath(NULL, CSIDL_LOCAL_APPDATA, NULL,
 110                                  SHGFP_TYPE_CURRENT, system_buffer)))
 111         return false;
 112       cur = FilePath(system_buffer);
 113       break;
 114     case base::DIR_SOURCE_ROOT: {
 115       FilePath executableDir;
 116       // On Windows, unit tests execute two levels deep from the source root.
 117       // For example:  chrome/{Debug|Release}/ui_tests.exe
 118       PathService::Get(base::DIR_EXE, &executableDir);
 119       cur = executableDir.DirName().DirName();
 120       FilePath checkedPath =
 121           cur.Append(FILE_PATH_LITERAL("base/base_paths_win.cc"));
 122       if (!file_util::PathExists(checkedPath)) {
 123         // Check for WebKit-only checkout. Executable files are put into
 124         // WebKit/WebKit/chromium/{Debug|Relese}, and we should return
 125         // WebKit/WebKit/chromium.
 126         cur = executableDir.DirName();
 127       }
 128       break;
 129     }
 130     default:
 131       return false;
 132   }
 133
 134   *result = cur;
 135   return true;
 136 }
 137
 138 }  // namespace base