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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/nearby_sharing/certificates/nearby_share_certificate_storage.h"
#include <algorithm>
#include "base/strings/string_number_conversions.h"
#include "chrome/browser/nearby_sharing/certificates/common.h"
#include "components/cross_device/logging/logging.h"
std::optional<base::Time>
NearbyShareCertificateStorage::NextPrivateCertificateExpirationTime() {
std::optional<std::vector<NearbySharePrivateCertificate>> certs =
GetPrivateCertificates();
if (!certs || certs->empty())
return std::nullopt;
base::Time min_time = base::Time::Max();
for (const NearbySharePrivateCertificate& cert : *certs)
min_time = std::min(min_time, cert.not_after());
return min_time;
}
void NearbyShareCertificateStorage::UpdatePrivateCertificate(
const NearbySharePrivateCertificate& private_certificate) {
std::optional<std::vector<NearbySharePrivateCertificate>> certs =
GetPrivateCertificates();
if (!certs) {
CD_LOG(WARNING, Feature::NS)
<< __func__ << ": No private certificates to update.";
return;
}
auto it = std::ranges::find(*certs, private_certificate.id(),
&NearbySharePrivateCertificate::id);
if (it == certs->end()) {
CD_LOG(VERBOSE, Feature::NS)
<< __func__ << ": No private certificate with id="
<< base::HexEncode(private_certificate.id());
return;
}
CD_LOG(VERBOSE, Feature::NS)
<< __func__ << ": Updating private certificate id="
<< base::HexEncode(private_certificate.id());
*it = private_certificate;
ReplacePrivateCertificates(*certs);
}
void NearbyShareCertificateStorage::RemoveExpiredPrivateCertificates(
base::Time now) {
std::optional<std::vector<NearbySharePrivateCertificate>> certs =
GetPrivateCertificates();
if (!certs)
return;
std::vector<NearbySharePrivateCertificate> unexpired_certs;
for (const NearbySharePrivateCertificate& cert : *certs) {
if (!IsNearbyShareCertificateExpired(
now, cert.not_after(),
/*use_public_certificate_tolerance=*/false)) {
unexpired_certs.push_back(cert);
}
}
size_t num_removed = certs->size() - unexpired_certs.size();
if (num_removed == 0)
return;
CD_LOG(VERBOSE, Feature::NS) << __func__ << ": Removing " << num_removed
<< " expired private certificates.";
ReplacePrivateCertificates(unexpired_certs);
}
void NearbyShareCertificateStorage::ClearPrivateCertificates() {
CD_LOG(VERBOSE, Feature::NS)
<< __func__ << ": Removing all private certificates.";
ReplacePrivateCertificates(std::vector<NearbySharePrivateCertificate>());
}
void NearbyShareCertificateStorage::ClearPrivateCertificatesOfVisibility(
nearby_share::mojom::Visibility visibility) {
std::optional<std::vector<NearbySharePrivateCertificate>> certs =
GetPrivateCertificates();
if (!certs)
return;
bool were_certs_removed = false;
std::vector<NearbySharePrivateCertificate> new_certs;
for (const NearbySharePrivateCertificate& cert : *certs) {
if (cert.visibility() == visibility) {
were_certs_removed = true;
} else {
new_certs.push_back(cert);
}
}
if (were_certs_removed) {
CD_LOG(VERBOSE, Feature::NS)
<< __func__ << ": Removing all private certificates of visibility "
<< visibility;
ReplacePrivateCertificates(new_certs);
}
}
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