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// 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 <string>
#include <vector>
#include "base/macros.h"
#include "base/native_library.h"
#include "base/strings/string16.h"
// The following declarations of functions and types are from Firefox
// NSS library.
// source code:
// security/nss/lib/util/seccomon.h
// security/nss/lib/nss/nss.h
// The license block is:
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
* The Original Code is the Netscape security libraries.
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1994-2000
* the Initial Developer. All Rights Reserved.
* Contributor(s):
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
* ***** END LICENSE BLOCK ***** */
enum SECItemType {
siBuffer = 0,
siClearDataBuffer = 1,
siCipherDataBuffer = 2,
siDERCertBuffer = 3,
siEncodedCertBuffer = 4,
siDERNameBuffer = 5,
siEncodedNameBuffer = 6,
siAsciiNameString = 7,
siAsciiString = 8,
siDEROID = 9,
siUnsignedInteger = 10,
siUTCTime = 11,
siGeneralizedTime = 12
struct SECItem {
SECItemType type;
unsigned char *data;
unsigned int len;
enum SECStatus {
SECWouldBlock = -2,
SECFailure = -1,
SECSuccess = 0
typedef int PRBool;
#define PR_TRUE 1
#define PR_FALSE 0
typedef enum { PR_FAILURE = -1, PR_SUCCESS = 0 } PRStatus;
typedef struct PK11SlotInfoStr PK11SlotInfo;
typedef SECStatus (*NSSInitFunc)(const char *configdir);
typedef SECStatus (*NSSShutdownFunc)(void);
typedef PK11SlotInfo* (*PK11GetInternalKeySlotFunc)(void);
typedef void (*PK11FreeSlotFunc)(PK11SlotInfo *slot);
typedef SECStatus (*PK11CheckUserPasswordFunc)(PK11SlotInfo *slot, char *pw);
typedef SECStatus
(*PK11AuthenticateFunc)(PK11SlotInfo *slot, PRBool loadCerts, void *wincx);
typedef SECStatus
(*PK11SDRDecryptFunc)(SECItem *data, SECItem *result, void *cx);
typedef void (*SECITEMFreeItemFunc)(SECItem *item, PRBool free_it);
typedef void (*PLArenaFinishFunc)(void);
typedef PRStatus (*PRCleanupFunc)(void);
struct FirefoxRawPasswordInfo;
namespace autofill {
struct PasswordForm;
// A wrapper for Firefox NSS decrypt component.
class NSSDecryptor {
// Loads NSS3 library and returns true if successful.
// |dll_path| indicates the location of NSS3 DLL files, and |db_path|
// is the location of the database file that stores the keys.
bool Init(const base::FilePath& dll_path, const base::FilePath& db_path);
// Frees the libraries.
void Free();
// Decrypts Firefox stored passwords. Before using this method,
// make sure Init() returns true.
base::string16 Decrypt(const std::string& crypt) const;
// Parses the Firefox password file content, decrypts the
// username/password and reads other related information.
// The result will be stored in |forms|.
void ParseSignons(const base::FilePath& signon_file,
std::vector<autofill::PasswordForm>* forms);
// Reads and parses the Firefox password sqlite db, decrypts the
// username/password and reads other related information.
// The result will be stored in |forms|.
bool ReadAndParseSignons(const base::FilePath& sqlite_file,
std::vector<autofill::PasswordForm>* forms);
// Reads and parses the Firefox password file logins.json, decrypts the
// username/password and reads other related information.
// The result will be stored in |forms|.
bool ReadAndParseLogins(const base::FilePath& json_file,
std::vector<autofill::PasswordForm>* forms);
// Call NSS initialization funcs.
bool InitNSS(const base::FilePath& db_path,
base::NativeLibrary plds4_dll,
base::NativeLibrary nspr4_dll);
PK11SlotInfo* GetKeySlotForDB() const { return PK11_GetInternalKeySlot(); }
void FreeSlot(PK11SlotInfo* slot) const { PK11_FreeSlot(slot); }
// Turns unprocessed information extracted from Firefox's password file
// into PasswordForm.
bool CreatePasswordFormFromRawInfo(
const FirefoxRawPasswordInfo& raw_password_info,
autofill::PasswordForm* form);
// Methods in Firefox security components.
NSSInitFunc NSS_Init;
NSSShutdownFunc NSS_Shutdown;
PK11GetInternalKeySlotFunc PK11_GetInternalKeySlot;
PK11FreeSlotFunc PK11_FreeSlot;
PK11AuthenticateFunc PK11_Authenticate;
PK11SDRDecryptFunc PK11SDR_Decrypt;
PLArenaFinishFunc PL_ArenaFinish;
PRCleanupFunc PR_Cleanup;
// Libraries necessary for decrypting the passwords.
static const wchar_t kNSS3Library[];
static const wchar_t kSoftokn3Library[];
static const wchar_t kPLDS4Library[];
static const wchar_t kNSPR4Library[];
// NSS3 module handles.
base::NativeLibrary nss3_dll_;
base::NativeLibrary softokn3_dll_;
// True if NSS_Init() has been called
bool is_nss_initialized_;