1 files changed, 102 insertions, 0 deletions
diff --git a/chrome/app/chrome_main_win.cc b/chrome/app/chrome_main_win.cc
new file mode 100644
index 0000000..774d3a4
--- /dev/null
+++ b/chrome/app/chrome_main_win.cc
@@ -0,0 +1,102 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <shlobj.h>
+
+#include "base/file_path.h"
+#include "base/scoped_ptr.h"
+#include "base/utf_string_conversions.h"
+#include "base/win/registry.h"
+#include "policy/policy_constants.h"
+
+const WCHAR* kMachineNamePolicyVarName = L"${machine_name}";
+const WCHAR* kUserNamePolicyVarName = L"${user_name}";
+const WCHAR* kWinDocumentsFolderVarName = L"${documents}";
+const WCHAR* kWinLocalAppDataFolderVarName = L"${local_app_data}";
+const WCHAR* kWinProfileFolderVarName = L"${profile}";
+const WCHAR* kWinProgramDataFolderVarName = L"${global_app_data}";
+const WCHAR* kWinProgramFilesFolderVarName = L"${program_files}";
+const WCHAR* kWinWindowsFolderVarName = L"${windows}";
+
+struct WinFolderNamesToCSIDLMapping {
+  const WCHAR* name;
+  int id;
+};
+
+// Mapping from variable names to Windows CSIDL ids.
+const WinFolderNamesToCSIDLMapping win_folder_mapping[] = {
+    { kWinWindowsFolderVarName,      CSIDL_WINDOWS},
+    { kWinProgramFilesFolderVarName, CSIDL_PROGRAM_FILES},
+    { kWinProgramDataFolderVarName,  CSIDL_COMMON_APPDATA},
+    { kWinProfileFolderVarName,      CSIDL_PROFILE},
+    { kWinLocalAppDataFolderVarName, CSIDL_LOCAL_APPDATA},
+    { kWinDocumentsFolderVarName,    CSIDL_PERSONAL}
+};
+
+// Replaces all variable occurances in the policy string with the respective
+// system settings values.
+std::wstring TranslateWinVariablesInPolicy(
+    const std::wstring& untranslated_string) {
+  std::wstring result(untranslated_string);
+  // First translate all path variables we recognize.
+  for (int i = 0; i < arraysize(win_folder_mapping); ++i) {
+    size_t position = result.find(win_folder_mapping[i].name);
+    if (position != std::wstring::npos) {
+      WCHAR path[MAX_PATH];
+      ::SHGetSpecialFolderPath(0, path, win_folder_mapping[i].id, false);
+      std::wstring path_string(path);
+      result.replace(position, wcslen(win_folder_mapping[i].name), path_string);
+    }
+  }
+  // Next translate two speacial variables ${user_name} and ${machine_name}
+  size_t position = result.find(kUserNamePolicyVarName);
+  if (position != std::wstring::npos) {
+    DWORD return_length = 0;
+    ::GetUserName(NULL, &return_length);
+    if (return_length != 0) {
+      scoped_array<WCHAR> username(new WCHAR[return_length]);
+      ::GetUserName(username.get(), &return_length);
+      std::wstring username_string(username.get());
+      result.replace(position, wcslen(kUserNamePolicyVarName), username_string);
+    }
+  }
+  position = result.find(kMachineNamePolicyVarName);
+  if (position != std::wstring::npos) {
+    DWORD return_length = 0;
+    ::GetComputerNameEx(ComputerNamePhysicalDnsHostname, NULL, &return_length);
+    if (return_length != 0) {
+      scoped_array<WCHAR> machinename(new WCHAR[return_length]);
+      ::GetComputerNameEx(ComputerNamePhysicalDnsHostname,
+                          machinename.get(), &return_length);
+      std::wstring machinename_string(machinename.get());
+      result.replace(
+        position, wcslen(kMachineNamePolicyVarName), machinename_string);
+    }
+  }
+  return result;
+}
+
+// Checks if the registry key exists in the given hive and expands any
+// variables in the string.
+bool LoadUserDataDirPolicyFromRegistry(HKEY hive, FilePath* user_data_dir) {
+  std::wstring key_name = UTF8ToWide(policy::key::kUserDataDir);
+  std::wstring value;
+
+  base::win::RegKey hklm_policy_key(hive, policy::kRegistrySubKey, KEY_READ);
+  if (hklm_policy_key.ReadValue(key_name.c_str(), &value) == ERROR_SUCCESS) {
+    *user_data_dir = FilePath::FromWStringHack(
+        TranslateWinVariablesInPolicy(value));
+    return true;
+  }
+  return false;
+}
+
+// Checks if the UserDataDir policy has been set and returns its value in the
+// |user_data_dir| parameter. If no policy is set the parameter is not changed.
+void CheckUserDataDirPolicy(FilePath* user_data_dir) {
+  // Policy from the HKLM hive has precedence over HKCU so if we have one here
+  // we don't have to try to load HKCU.
+  if (!LoadUserDataDirPolicyFromRegistry(HKEY_LOCAL_MACHINE, user_data_dir))
+    LoadUserDataDirPolicyFromRegistry(HKEY_CURRENT_USER, user_data_dir);
+}