net/cert/crl_set_storage.h

   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
  16 namespace base {
  17 class DictionaryValue;
  18 }
  19
  20 namespace net {
  21
  22 // Static helpers to save and load CRLSet.
  23 class 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_