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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_ATTRIBUTION_REPORTING_REGISTRATION_INFO_H_
#define COMPONENTS_ATTRIBUTION_REPORTING_REGISTRATION_INFO_H_
#include <optional>
#include <string_view>
#include "base/component_export.h"
#include "base/types/expected.h"
#include "net/http/structured_headers.h"
namespace attribution_reporting {
enum class Registrar;
// These values are persisted to logs. Entries should not be renumbered and
// numeric values should never be reused.
//
// LINT.IfChange(RegistrationInfoError)
enum class RegistrationInfoError {
kRootInvalid = 0,
kInvalidPreferredPlatform = 1,
kInvalidReportHeaderErrors = 2,
kMaxValue = kInvalidReportHeaderErrors,
};
// LINT.ThenChange(//tools/metrics/histograms/metadata/attribution_reporting/enums.xml:ConversionRegistrationInfoError)
struct COMPONENT_EXPORT(ATTRIBUTION_REPORTING) RegistrationInfo {
std::optional<Registrar> preferred_platform;
bool report_header_errors = false;
// Parses an Attribution-Reporting-Info header for the registration info.
//
// Currently only 'preferred-platform' and 'report-header-errors' fields are
// expected in the Attribution-Reporting-Info header. Any other fields are
// ignored. Returns an error if the string is not parsable as a
// structured-header dictionary or the value of 'preferred-platform' is not an
// allowed token or the value of 'report-header-errors' is not a boolean.
//
// Example:
//
// `preferred-platform=web` or `preferred-platform=os` or
// `report-header-errors` or `preferred-platform=web,report-header-errors`
static base::expected<RegistrationInfo, RegistrationInfoError> ParseInfo(
std::string_view);
// Same as the above, but using an already-parsed structured-header
// dictionary.
static base::expected<RegistrationInfo, RegistrationInfoError> ParseInfo(
const net::structured_headers::Dictionary&);
friend bool operator==(const RegistrationInfo&,
const RegistrationInfo&) = default;
};
COMPONENT_EXPORT(ATTRIBUTION_REPORTING)
void RecordRegistrationInfoError(RegistrationInfoError);
} // namespace attribution_reporting
#endif // COMPONENTS_ATTRIBUTION_REPORTING_REGISTRATION_INFO_H_
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