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// Copyright 2014 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.
#ifndef NET_CERT_CRL_SET_STORAGE_H_
#define NET_CERT_CRL_SET_STORAGE_H_
#include <string>
#include <utility>
#include <vector>
#include "base/strings/string_piece.h"
#include "net/base/net_export.h"
#include "net/cert/crl_set.h"
namespace base {
class DictionaryValue;
}
namespace net {
// Static helpers to save and load CRLSet.
class NET_EXPORT CRLSetStorage {
public:
// Parse parses the bytes in |data| and, on success, puts a new CRLSet in
// |out_crl_set| and returns true.
static bool Parse(base::StringPiece data,
scoped_refptr<CRLSet>* out_crl_set);
// ApplyDelta returns a new CRLSet in |out_crl_set| that is the result of
// updating |in_crl_set| with the delta information in |delta_bytes|.
static bool ApplyDelta(const CRLSet* in_crl_set,
const base::StringPiece& delta_bytes,
scoped_refptr<CRLSet>* out_crl_set);
// GetIsDeltaUpdate extracts the header from |bytes|, sets *is_delta to
// whether |bytes| is a delta CRL set or not and returns true. In the event
// of a parse error, it returns false.
static bool GetIsDeltaUpdate(const base::StringPiece& bytes, bool *is_delta);
// Serialize returns a string of bytes suitable for passing to Parse. Parsing
// and serializing a CRLSet is a lossless operation - the resulting bytes
// will be equal.
static std::string Serialize(const CRLSet* crl_set);
private:
// CopyBlockedSPKIsFromHeader sets |blocked_spkis_| to the list of values
// from "BlockedSPKIs" in |header_dict|.
static bool CopyBlockedSPKIsFromHeader(CRLSet* crl_set,
base::DictionaryValue* header_dict);
};
} // namespace net
#endif // NET_CERT_CRL_SET_STORAGE_H_
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