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// 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 <Cocoa/Cocoa.h>
#include <dlfcn.h>
#include "base/sys_string_conversions.h"
#include "chrome/browser/importer/nss_decryptor_mac.h"
#include "chrome/browser/importer/firefox_importer_utils.h"
#include "base/logging.h"
// static
const wchar_t NSSDecryptor::kNSS3Library[] = L"libnss3.dylib";
// Important!! : On OS X the nss3 libraries are compiled with depedencies
// on one another, referenced using dyld's @executable_path directive.
// To make a long story short in order to get the libraries to load, dyld's
// fallback path needs to be set to the directory containing the libraries.
// To do so, the process this function runs in must have the
// DYLD_FALLBACK_LIBRARY_PATH set on startup to said directory.
bool NSSDecryptor::Init(const std::wstring& dll_path,
const std::wstring& db_path) {
FilePath dylib_file_path = FilePath::FromWStringHack(dll_path);
FilePath nss3_path = dylib_file_path.Append("libnss3.dylib");
void *nss_3_lib = dlopen(nss3_path.value().c_str(), RTLD_LAZY);
if (!nss_3_lib) {
LOG(ERROR) << "Failed to load nss3 lib" << dlerror();
return false;
}
NSS_Init = (NSSInitFunc)dlsym(nss_3_lib, "NSS_Init");
NSS_Shutdown = (NSSShutdownFunc)dlsym(nss_3_lib, "NSS_Shutdown");
PK11_GetInternalKeySlot =
(PK11GetInternalKeySlotFunc)dlsym(nss_3_lib, "PK11_GetInternalKeySlot");
PK11_CheckUserPassword =
(PK11CheckUserPasswordFunc)dlsym(nss_3_lib, "PK11_CheckUserPassword");
PK11_FreeSlot = (PK11FreeSlotFunc)dlsym(nss_3_lib, "PK11_FreeSlot");
PK11_Authenticate =
(PK11AuthenticateFunc)dlsym(nss_3_lib, "PK11_Authenticate");
PK11SDR_Decrypt = (PK11SDRDecryptFunc)dlsym(nss_3_lib, "PK11SDR_Decrypt");
SECITEM_FreeItem = (SECITEMFreeItemFunc)dlsym(nss_3_lib, "SECITEM_FreeItem");
if (!NSS_Init || !NSS_Shutdown || !PK11_GetInternalKeySlot ||
!PK11_CheckUserPassword || !PK11_FreeSlot || !PK11_Authenticate ||
!PK11SDR_Decrypt || !SECITEM_FreeItem) {
LOG(ERROR) << "NSS3 importer couldn't find entry points";
return false;
}
SECStatus result = NSS_Init(base::SysWideToNativeMB(db_path).c_str());
if (result != SECSuccess) {
LOG(ERROR) << "NSS_Init Failed returned: " << result;
return false;
}
is_nss_initialized_ = true;
return true;
}
NSSDecryptor::~NSSDecryptor() {
if (NSS_Shutdown && is_nss_initialized_) {
NSS_Shutdown();
is_nss_initialized_ = false;
}
}
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