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1 // Copyright (c) 2010 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 #ifndef CHROME_BROWSER_IMPORTER_NSS_DECRYPTOR_MAC_H_
6 #define CHROME_BROWSER_IMPORTER_NSS_DECRYPTOR_MAC_H_
7 #pragma once
8 
9 #include <string>
10 #include <vector>
11 
12 #include "base/basictypes.h"
13 #include "base/string16.h"
14 
15 class FilePath;
16 
17 // The following declarations of functions and types are from Firefox
18 // NSS library.
19 // source code:
20 //   security/nss/lib/util/seccomon.h
21 //   security/nss/lib/nss/nss.h
22 // The license block is:
23 
24 /* ***** BEGIN LICENSE BLOCK *****
25 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
26 *
27 * The contents of this file are subject to the Mozilla Public License Version
28 * 1.1 (the "License"); you may not use this file except in compliance with
29 * the License. You may obtain a copy of the License at
30 * http://www.mozilla.org/MPL/
31 *
32 * Software distributed under the License is distributed on an "AS IS" basis,
33 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
34 * for the specific language governing rights and limitations under the
35 * License.
36 *
37 * The Original Code is the Netscape security libraries.
38 *
39 * The Initial Developer of the Original Code is
40 * Netscape Communications Corporation.
41 * Portions created by the Initial Developer are Copyright (C) 1994-2000
42 * the Initial Developer. All Rights Reserved.
43 *
44 * Contributor(s):
45 *
46 * Alternatively, the contents of this file may be used under the terms of
47 * either the GNU General Public License Version 2 or later (the "GPL"), or
48 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
49 * in which case the provisions of the GPL or the LGPL are applicable instead
50 * of those above. If you wish to allow use of your version of this file only
51 * under the terms of either the GPL or the LGPL, and not to allow others to
52 * use your version of this file under the terms of the MPL, indicate your
53 * decision by deleting the provisions above and replace them with the notice
54 * and other provisions required by the GPL or the LGPL. If you do not delete
55 * the provisions above, a recipient may use your version of this file under
56 * the terms of any one of the MPL, the GPL or the LGPL.
57 *
58 * ***** END LICENSE BLOCK ***** */
59 
60 enum SECItemType {
61   siBuffer = 0,
62   siClearDataBuffer = 1,
63   siCipherDataBuffer = 2,
64   siDERCertBuffer = 3,
65   siEncodedCertBuffer = 4,
66   siDERNameBuffer = 5,
67   siEncodedNameBuffer = 6,
68   siAsciiNameString = 7,
69   siAsciiString = 8,
70   siDEROID = 9,
71   siUnsignedInteger = 10,
72   siUTCTime = 11,
73   siGeneralizedTime = 12
74 };
75 
76 struct SECItem {
77   SECItemType type;
78   unsigned char *data;
79   unsigned int len;
80 };
81 
82 enum SECStatus {
83   SECWouldBlock = -2,
84   SECFailure = -1,
85   SECSuccess = 0
86 };
87 
88 typedef int PRBool;
89 #define PR_TRUE 1
90 #define PR_FALSE 0
91 
92 typedef enum { PR_FAILURE = -1, PR_SUCCESS = 0 } PRStatus;
93 
94 typedef struct PK11SlotInfoStr PK11SlotInfo;
95 
96 typedef SECStatus (*NSSInitFunc)(const char *configdir);
97 typedef SECStatus (*NSSShutdownFunc)(void);
98 typedef PK11SlotInfo* (*PK11GetInternalKeySlotFunc)(void);
99 typedef void (*PK11FreeSlotFunc)(PK11SlotInfo *slot);
100 typedef SECStatus (*PK11CheckUserPasswordFunc)(PK11SlotInfo *slot, char *pw);
101 typedef SECStatus
102     (*PK11AuthenticateFunc)(PK11SlotInfo *slot, PRBool loadCerts, void *wincx);
103 typedef SECStatus
104     (*PK11SDRDecryptFunc)(SECItem *data, SECItem *result, void *cx);
105 typedef void (*SECITEMFreeItemFunc)(SECItem *item, PRBool free_it);
106 typedef void (*PLArenaFinishFunc)(void);
107 typedef PRStatus (*PRCleanupFunc)(void);
108 namespace webkit_glue {
109 struct PasswordForm;
110 }
111 
112 // A wrapper for Firefox NSS decrypt component.
113 class NSSDecryptor {
114  public:
NSSDecryptor()115   NSSDecryptor()
116       : NSS_Init(NULL), NSS_Shutdown(NULL), PK11_GetInternalKeySlot(NULL),
117         PK11_CheckUserPassword(NULL), PK11_FreeSlot(NULL),
118         PK11_Authenticate(NULL), PK11SDR_Decrypt(NULL), SECITEM_FreeItem(NULL),
119         is_nss_initialized_(false) {}
120   ~NSSDecryptor();
121 
122   // Initializes NSS if it hasn't already been initialized.
123   bool Init(const FilePath& dll_path, const FilePath& db_path);
124 
125   // Decrypts Firefox stored passwords. Before using this method,
126   // make sure Init() returns true.
127   string16 Decrypt(const std::string& crypt) const;
128 
129   // Parses the Firefox password file content, decrypts the
130   // username/password and reads other related information.
131   // The result will be stored in |forms|.
132   void ParseSignons(const std::string& content,
133                     std::vector<webkit_glue::PasswordForm>* forms);
134 
135   // Reads and parses the Firefox password sqlite db, decrypts the
136   // username/password and reads other related information.
137   // The result will be stored in |forms|.
138   bool ReadAndParseSignons(const FilePath& sqlite_file,
139                            std::vector<webkit_glue::PasswordForm>* forms);
140  private:
GetKeySlotForDB()141   PK11SlotInfo* GetKeySlotForDB() const { return PK11_GetInternalKeySlot(); }
FreeSlot(PK11SlotInfo * slot)142   void FreeSlot(PK11SlotInfo* slot) const { PK11_FreeSlot(slot); }
143 
144   // Methods in Firefox security components.
145   NSSInitFunc NSS_Init;
146   NSSShutdownFunc NSS_Shutdown;
147   PK11GetInternalKeySlotFunc PK11_GetInternalKeySlot;
148   PK11CheckUserPasswordFunc PK11_CheckUserPassword;
149   PK11FreeSlotFunc PK11_FreeSlot;
150   PK11AuthenticateFunc PK11_Authenticate;
151   PK11SDRDecryptFunc PK11SDR_Decrypt;
152   SECITEMFreeItemFunc SECITEM_FreeItem;
153 
154   // True if NSS_Init() has been called
155   bool is_nss_initialized_;
156 
157   DISALLOW_COPY_AND_ASSIGN(NSSDecryptor);
158 };
159 
160 #endif  // CHROME_BROWSER_IMPORTER_NSS_DECRYPTOR_MAC_H_
161