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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/cert/signed_tree_head.h"
#include <algorithm>
#include <ostream>
#include <string>
#include <tuple>
#include "base/containers/span.h"
#include "base/strings/string_number_conversions.h"
#include "base/time/time.h"
namespace net::ct {
SignedTreeHead::SignedTreeHead() = default;
SignedTreeHead::SignedTreeHead(
Version version,
const base::Time& timestamp,
uint64_t tree_size,
base::span<const uint8_t, kSthRootHashLength> sha256_root_hash,
const DigitallySigned& signature,
const std::string& log_id)
: version(version),
timestamp(timestamp),
tree_size(tree_size),
signature(signature),
log_id(log_id) {
base::as_writable_byte_span(this->sha256_root_hash)
.copy_from(sha256_root_hash);
}
SignedTreeHead::SignedTreeHead(const SignedTreeHead& other) = default;
SignedTreeHead::~SignedTreeHead() = default;
void PrintTo(const SignedTreeHead& sth, std::ostream* os) {
(*os) << "{\n"
<< "\t\"version\": " << sth.version << ",\n"
<< "\t\"timestamp\": " << sth.timestamp << ",\n"
<< "\t\"tree_size\": " << sth.tree_size << ",\n"
<< "\t\"sha256_root_hash\": \""
<< base::HexEncode(sth.sha256_root_hash, kSthRootHashLength)
<< "\",\n\t\"log_id\": \"" << base::HexEncode(sth.log_id) << "\"\n"
<< "}";
}
bool operator==(const SignedTreeHead& lhs, const SignedTreeHead& rhs) {
return std::tie(lhs.version, lhs.timestamp, lhs.tree_size, lhs.log_id) ==
std::tie(rhs.version, rhs.timestamp, rhs.tree_size, rhs.log_id) &&
std::ranges::equal(base::as_byte_span(lhs.sha256_root_hash),
base::as_byte_span(rhs.sha256_root_hash)) &&
lhs.signature.SignatureParametersMatch(
rhs.signature.hash_algorithm, rhs.signature.signature_algorithm) &&
lhs.signature.signature_data == rhs.signature.signature_data;
}
} // namespace net::ct
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