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      1 // Copyright (c) 2012 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 <windows.h>
      6 #include <shlobj.h>
      7 
      8 #include "base/base_paths.h"
      9 #include "base/files/file_path.h"
     10 #include "base/path_service.h"
     11 #include "base/win/scoped_co_mem.h"
     12 #include "base/win/windows_version.h"
     13 
     14 // http://blogs.msdn.com/oldnewthing/archive/2004/10/25/247180.aspx
     15 extern "C" IMAGE_DOS_HEADER __ImageBase;
     16 
     17 using base::FilePath;
     18 
     19 namespace {
     20 
     21 bool GetQuickLaunchPath(bool default_user, FilePath* result) {
     22   if (default_user) {
     23     wchar_t system_buffer[MAX_PATH];
     24     system_buffer[0] = 0;
     25     // As per MSDN, passing -1 for |hToken| indicates the Default user:
     26     // http://msdn.microsoft.com/library/windows/desktop/bb762181.aspx
     27     if (FAILED(SHGetFolderPath(NULL, CSIDL_APPDATA,
     28                                reinterpret_cast<HANDLE>(-1), SHGFP_TYPE_CURRENT,
     29                                system_buffer))) {
     30       return false;
     31     }
     32     *result = FilePath(system_buffer);
     33   } else if (!PathService::Get(base::DIR_APP_DATA, result)) {
     34     // For the current user, grab the APPDATA directory directly from the
     35     // PathService cache.
     36     return false;
     37   }
     38   // According to various sources, appending
     39   // "Microsoft\Internet Explorer\Quick Launch" to %appdata% is the only
     40   // reliable way to get the quick launch folder across all versions of Windows.
     41   // http://stackoverflow.com/questions/76080/how-do-you-reliably-get-the-quick-
     42   // http://www.microsoft.com/technet/scriptcenter/resources/qanda/sept05/hey0901.mspx
     43   *result = result->AppendASCII("Microsoft");
     44   *result = result->AppendASCII("Internet Explorer");
     45   *result = result->AppendASCII("Quick Launch");
     46   return true;
     47 }
     48 
     49 }  // namespace
     50 
     51 namespace base {
     52 
     53 bool PathProviderWin(int key, FilePath* result) {
     54   // We need to go compute the value. It would be nice to support paths with
     55   // names longer than MAX_PATH, but the system functions don't seem to be
     56   // designed for it either, with the exception of GetTempPath (but other
     57   // things will surely break if the temp path is too long, so we don't bother
     58   // handling it.
     59   wchar_t system_buffer[MAX_PATH];
     60   system_buffer[0] = 0;
     61 
     62   FilePath cur;
     63   switch (key) {
     64     case base::FILE_EXE:
     65       GetModuleFileName(NULL, system_buffer, MAX_PATH);
     66       cur = FilePath(system_buffer);
     67       break;
     68     case base::FILE_MODULE: {
     69       // the resource containing module is assumed to be the one that
     70       // this code lives in, whether that's a dll or exe
     71       HMODULE this_module = reinterpret_cast<HMODULE>(&__ImageBase);
     72       GetModuleFileName(this_module, system_buffer, MAX_PATH);
     73       cur = FilePath(system_buffer);
     74       break;
     75     }
     76     case base::DIR_WINDOWS:
     77       GetWindowsDirectory(system_buffer, MAX_PATH);
     78       cur = FilePath(system_buffer);
     79       break;
     80     case base::DIR_SYSTEM:
     81       GetSystemDirectory(system_buffer, MAX_PATH);
     82       cur = FilePath(system_buffer);
     83       break;
     84     case base::DIR_PROGRAM_FILESX86:
     85       if (base::win::OSInfo::GetInstance()->architecture() !=
     86           base::win::OSInfo::X86_ARCHITECTURE) {
     87         if (FAILED(SHGetFolderPath(NULL, CSIDL_PROGRAM_FILESX86, NULL,
     88                                    SHGFP_TYPE_CURRENT, system_buffer)))
     89           return false;
     90         cur = FilePath(system_buffer);
     91         break;
     92       }
     93       // Fall through to base::DIR_PROGRAM_FILES if we're on an X86 machine.
     94     case base::DIR_PROGRAM_FILES:
     95       if (FAILED(SHGetFolderPath(NULL, CSIDL_PROGRAM_FILES, NULL,
     96                                  SHGFP_TYPE_CURRENT, system_buffer)))
     97         return false;
     98       cur = FilePath(system_buffer);
     99       break;
    100     case base::DIR_IE_INTERNET_CACHE:
    101       if (FAILED(SHGetFolderPath(NULL, CSIDL_INTERNET_CACHE, NULL,
    102                                  SHGFP_TYPE_CURRENT, system_buffer)))
    103         return false;
    104       cur = FilePath(system_buffer);
    105       break;
    106     case base::DIR_COMMON_START_MENU:
    107       if (FAILED(SHGetFolderPath(NULL, CSIDL_COMMON_PROGRAMS, NULL,
    108                                  SHGFP_TYPE_CURRENT, system_buffer)))
    109         return false;
    110       cur = FilePath(system_buffer);
    111       break;
    112     case base::DIR_START_MENU:
    113       if (FAILED(SHGetFolderPath(NULL, CSIDL_PROGRAMS, NULL,
    114                                  SHGFP_TYPE_CURRENT, system_buffer)))
    115         return false;
    116       cur = FilePath(system_buffer);
    117       break;
    118     case base::DIR_APP_DATA:
    119       if (FAILED(SHGetFolderPath(NULL, CSIDL_APPDATA, NULL, SHGFP_TYPE_CURRENT,
    120                                  system_buffer)))
    121         return false;
    122       cur = FilePath(system_buffer);
    123       break;
    124     case base::DIR_COMMON_APP_DATA:
    125       if (FAILED(SHGetFolderPath(NULL, CSIDL_COMMON_APPDATA, NULL,
    126                                  SHGFP_TYPE_CURRENT, system_buffer)))
    127         return false;
    128       cur = FilePath(system_buffer);
    129       break;
    130     case base::DIR_LOCAL_APP_DATA_LOW:
    131       if (win::GetVersion() < win::VERSION_VISTA)
    132         return false;
    133 
    134       // TODO(nsylvain): We should use SHGetKnownFolderPath instead. Bug 1281128
    135       if (FAILED(SHGetFolderPath(NULL, CSIDL_APPDATA, NULL, SHGFP_TYPE_CURRENT,
    136                                  system_buffer)))
    137         return false;
    138       cur = FilePath(system_buffer).DirName().AppendASCII("LocalLow");
    139       break;
    140     case base::DIR_LOCAL_APP_DATA:
    141       if (FAILED(SHGetFolderPath(NULL, CSIDL_LOCAL_APPDATA, NULL,
    142                                  SHGFP_TYPE_CURRENT, system_buffer)))
    143         return false;
    144       cur = FilePath(system_buffer);
    145       break;
    146     case base::DIR_SOURCE_ROOT: {
    147       FilePath executableDir;
    148       // On Windows, unit tests execute two levels deep from the source root.
    149       // For example:  chrome/{Debug|Release}/ui_tests.exe
    150       PathService::Get(base::DIR_EXE, &executableDir);
    151       cur = executableDir.DirName().DirName();
    152       break;
    153     }
    154     case base::DIR_APP_SHORTCUTS: {
    155       if (win::GetVersion() < win::VERSION_WIN8)
    156         return false;
    157 
    158       base::win::ScopedCoMem<wchar_t> path_buf;
    159       if (FAILED(SHGetKnownFolderPath(FOLDERID_ApplicationShortcuts, 0, NULL,
    160                                       &path_buf)))
    161         return false;
    162 
    163       cur = FilePath(string16(path_buf));
    164       break;
    165     }
    166     case base::DIR_USER_DESKTOP:
    167       if (FAILED(SHGetFolderPath(NULL, CSIDL_DESKTOPDIRECTORY, NULL,
    168                                  SHGFP_TYPE_CURRENT, system_buffer))) {
    169         return false;
    170       }
    171       cur = FilePath(system_buffer);
    172       break;
    173     case base::DIR_COMMON_DESKTOP:
    174       if (FAILED(SHGetFolderPath(NULL, CSIDL_COMMON_DESKTOPDIRECTORY, NULL,
    175                                  SHGFP_TYPE_CURRENT, system_buffer))) {
    176         return false;
    177       }
    178       cur = FilePath(system_buffer);
    179       break;
    180     case base::DIR_USER_QUICK_LAUNCH:
    181       if (!GetQuickLaunchPath(false, &cur))
    182         return false;
    183       break;
    184     case base::DIR_DEFAULT_USER_QUICK_LAUNCH:
    185       if (!GetQuickLaunchPath(true, &cur))
    186         return false;
    187       break;
    188     case base::DIR_TASKBAR_PINS:
    189       if (!PathService::Get(base::DIR_USER_QUICK_LAUNCH, &cur))
    190         return false;
    191       cur = cur.AppendASCII("User Pinned");
    192       cur = cur.AppendASCII("TaskBar");
    193       break;
    194     case base::DIR_WINDOWS_FONTS:
    195       if (FAILED(SHGetFolderPath(
    196               NULL, CSIDL_FONTS, NULL, SHGFP_TYPE_CURRENT, system_buffer))) {
    197         return false;
    198       }
    199       cur = FilePath(system_buffer);
    200       break;
    201     default:
    202       return false;
    203   }
    204 
    205   *result = cur;
    206   return true;
    207 }
    208 
    209 }  // namespace base
    210