1// Copyright 2014 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 NET_CERT_CRL_SET_STORAGE_H_
6#define NET_CERT_CRL_SET_STORAGE_H_
7
8#include <string>
9#include <utility>
10#include <vector>
11
12#include "base/strings/string_piece.h"
13#include "net/base/net_export.h"
14#include "net/cert/crl_set.h"
15
16namespace base {
17class DictionaryValue;
18}
19
20namespace net {
21
22// Static helpers to save and load CRLSet.
23class NET_EXPORT CRLSetStorage {
24 public:
25  // Parse parses the bytes in |data| and, on success, puts a new CRLSet in
26  // |out_crl_set| and returns true.
27  static bool Parse(base::StringPiece data,
28                    scoped_refptr<CRLSet>* out_crl_set);
29
30  // ApplyDelta returns a new CRLSet in |out_crl_set| that is the result of
31  // updating |in_crl_set| with the delta information in |delta_bytes|.
32  static bool ApplyDelta(const CRLSet* in_crl_set,
33                         const base::StringPiece& delta_bytes,
34                         scoped_refptr<CRLSet>* out_crl_set);
35
36  // GetIsDeltaUpdate extracts the header from |bytes|, sets *is_delta to
37  // whether |bytes| is a delta CRL set or not and returns true. In the event
38  // of a parse error, it returns false.
39  static bool GetIsDeltaUpdate(const base::StringPiece& bytes, bool *is_delta);
40
41  // Serialize returns a string of bytes suitable for passing to Parse. Parsing
42  // and serializing a CRLSet is a lossless operation - the resulting bytes
43  // will be equal.
44  static std::string Serialize(const CRLSet* crl_set);
45
46 private:
47  // CopyBlockedSPKIsFromHeader sets |blocked_spkis_| to the list of values
48  // from "BlockedSPKIs" in |header_dict|.
49  static bool CopyBlockedSPKIsFromHeader(CRLSet* crl_set,
50                                         base::DictionaryValue* header_dict);
51};
52
53}  // namespace net
54
55#endif  // NET_CERT_CRL_SET_STORAGE_H_
56