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// Copyright 2015 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 COMPONENTS_DOMAIN_RELIABILITY_HEADER_H_
#define COMPONENTS_DOMAIN_RELIABILITY_HEADER_H_
#include <memory>
#include <vector>
#include "base/strings/string_piece.h"
#include "base/time/time.h"
#include "components/domain_reliability/domain_reliability_export.h"
#include "url/gurl.h"
namespace domain_reliability {
struct DomainReliabilityConfig;
class DOMAIN_RELIABILITY_EXPORT DomainReliabilityHeader {
public:
// The outcome of the parse: PARSE_SET_CONFIG if the header specified a
// valid config to set, PARSE_CLEAR_CONFIG if the header requested that an
// existing config (if any) be cleared, or PARSE_ERROR if the heder did not
// parse correctly.
enum ParseStatus {
PARSE_SET_CONFIG,
PARSE_CLEAR_CONFIG,
PARSE_ERROR
};
~DomainReliabilityHeader();
static std::unique_ptr<DomainReliabilityHeader> Parse(
base::StringPiece value);
bool IsSetConfig() const { return status_ == PARSE_SET_CONFIG; }
bool IsClearConfig() const { return status_ == PARSE_CLEAR_CONFIG; }
bool IsParseError() const { return status_ == PARSE_ERROR; }
ParseStatus status() const { return status_; }
const DomainReliabilityConfig& config() const;
base::TimeDelta max_age() const;
std::unique_ptr<DomainReliabilityConfig> ReleaseConfig();
std::string ToString() const;
private:
// Constructor for PARSE_SET_CONFIG status.
DomainReliabilityHeader(ParseStatus status,
std::unique_ptr<DomainReliabilityConfig> config,
base::TimeDelta max_age);
// Constructor for PARSE_CLEAR_CONFIG and PARSE_ERROR statuses.
DomainReliabilityHeader(ParseStatus status);
ParseStatus status_;
// The configuration specified by the header, if the status is
// PARSE_SET_CONFIG.
std::unique_ptr<DomainReliabilityConfig> config_;
// The max-age specified by the header, if the status is PARSE_SET_CONFIG.
base::TimeDelta max_age_;
DISALLOW_COPY_AND_ASSIGN(DomainReliabilityHeader);
};
} // namespace domain_reliability
#endif // COMPONENTS_DOMAIN_RELIABILITY_HEADER_H_
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