Split NSSDecryptor out into platform specific files....

chrome/browser/importer/firefox_importer_utils_win.cc

 // Copyright (c) 2009 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 "chrome/browser/importer/firefox_importer_utils.h"
 
 #include <shlobj.h>
 
 #include "base/file_util.h"
 #include "base/registry.h"
 
-namespace {
-
-typedef BOOL (WINAPI* SetDllDirectoryFunc)(LPCTSTR lpPathName);
-
-// A helper class whose destructor calls SetDllDirectory(NULL) to undo the
-// effects of a previous SetDllDirectory call.
-class SetDllDirectoryCaller {
- public:
-  explicit SetDllDirectoryCaller() : func_(NULL) { }
-
-  ~SetDllDirectoryCaller() {
-    if (func_)
-      func_(NULL);
-  }
-
-  // Sets the SetDllDirectory function pointer to activates this object.
-  void set_func(SetDllDirectoryFunc func) { func_ = func; }
-
- private:
-  SetDllDirectoryFunc func_;
-};
-
-}  // namespace
-
 // NOTE: Keep these in order since we need test all those paths according
 // to priority. For example. One machine has multiple users. One non-admin
 // user installs Firefox 2, which causes there is a Firefox2 entry under HKCU.
 // One admin user installs Firefox 3, which causes there is a Firefox 3 entry
 // under HKLM. So when the non-admin user log in, we should deal with Firefox 2
 // related data instead of Firefox 3.
 static const HKEY kFireFoxRegistryPaths[] = {
   HKEY_CURRENT_USER,
   HKEY_LOCAL_MACHINE
 };
@@ skipping 42 matching lines @@
   wchar_t buffer[MAX_PATH] = {0};
   if (SUCCEEDED(SHGetFolderPath(NULL, CSIDL_APPDATA, NULL,
                                 SHGFP_TYPE_CURRENT, buffer))) {
     ini_file = FilePath(buffer).Append(L"Mozilla\\Firefox\\profiles.ini");
   }
   if (file_util::PathExists(ini_file))
     return ini_file;
 
   return FilePath();
 }
-
-// static
-const wchar_t NSSDecryptor::kNSS3Library[] = L"nss3.dll";
-const wchar_t NSSDecryptor::kSoftokn3Library[] = L"softokn3.dll";
-const wchar_t NSSDecryptor::kPLDS4Library[] = L"plds4.dll";
-const wchar_t NSSDecryptor::kNSPR4Library[] = L"nspr4.dll";
-
-bool NSSDecryptor::Init(const std::wstring& dll_path,
-                        const std::wstring& db_path) {
-  // We call SetDllDirectory to work around a Purify bug (GetModuleHandle
-  // fails inside Purify under certain conditions).  SetDllDirectory only
-  // exists on Windows XP SP1 or later, so we look up its address at run time.
-  HMODULE kernel32_dll = GetModuleHandle(L"kernel32.dll");
-  if (kernel32_dll == NULL)
-    return false;
-  SetDllDirectoryFunc set_dll_directory =
-      (SetDllDirectoryFunc)GetProcAddress(kernel32_dll, "SetDllDirectoryW");
-  SetDllDirectoryCaller caller;
-
-  if (set_dll_directory != NULL) {
-    if (!set_dll_directory(dll_path.c_str()))
-      return false;
-    caller.set_func(set_dll_directory);
-    nss3_dll_ = LoadLibrary(kNSS3Library);
-    if (nss3_dll_ == NULL)
-      return false;
-  } else {
-    // Fall back on LoadLibraryEx if SetDllDirectory isn't available.  We
-    // actually prefer this method because it doesn't change the DLL search
-    // path, which is a process-wide property.
-    std::wstring path = dll_path;
-    file_util::AppendToPath(&path, kNSS3Library);
-    nss3_dll_ = LoadLibraryEx(path.c_str(), NULL,
-                              LOAD_WITH_ALTERED_SEARCH_PATH);
-    if (nss3_dll_ == NULL)
-      return false;
-
-    // Firefox 2 uses NSS 3.11.  Firefox 3 uses NSS 3.12.  NSS 3.12 has two
-    // changes in its DLLs:
-    // 1. nss3.dll is not linked with softokn3.dll at build time, but rather
-    //    loads softokn3.dll using LoadLibrary in NSS_Init.
-    // 2. softokn3.dll has a new dependency sqlite3.dll.
-    // NSS_Init's LoadLibrary call has trouble finding sqlite3.dll.  To help
-    // it out, we preload softokn3.dll using LoadLibraryEx with the
-    // LOAD_WITH_ALTERED_SEARCH_PATH flag.  This helps because LoadLibrary
-    // doesn't load a DLL again if it's already loaded.  This workaround is
-    // harmless for NSS 3.11.
-    path = dll_path;
-    file_util::AppendToPath(&path, kSoftokn3Library);
-    softokn3_dll_ = LoadLibraryEx(path.c_str(), NULL,
-                                  LOAD_WITH_ALTERED_SEARCH_PATH);
-    if (softokn3_dll_ == NULL) {
-      Free();
-      return false;
-    }
-  }
-  HMODULE plds4_dll = GetModuleHandle(kPLDS4Library);
-  HMODULE nspr4_dll = GetModuleHandle(kNSPR4Library);
-
-  return InitNSS(db_path, plds4_dll, nspr4_dll);
-}