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// Copyright 2019 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/base/network_isolation_key.h"
#include <cstddef>
#include <optional>
#include <string>
#include "base/numerics/safe_conversions.h"
#include "base/strings/string_number_conversions.h"
#include "base/unguessable_token.h"
#include "net/base/features.h"
#include "net/base/network_isolation_partition.h"
#include "net/base/registry_controlled_domains/registry_controlled_domain.h"
#include "schemeful_site.h"
#include "url/gurl.h"
#include "url/origin.h"
#include "url/url_constants.h"
namespace net {
namespace {
std::string GetSiteDebugString(const std::optional<SchemefulSite>& site) {
return site ? site->GetDebugString() : "null";
}
std::string GetNetworkIsolationPartitionStringForCacheKey(
NetworkIsolationPartition network_isolation_partition) {
return base::NumberToString(
base::strict_cast<int32_t>(network_isolation_partition));
}
} // namespace
NetworkIsolationKey::NetworkIsolationKey(
const SchemefulSite& top_frame_site,
const SchemefulSite& frame_site,
const std::optional<base::UnguessableToken>& nonce,
NetworkIsolationPartition network_isolation_partition)
: NetworkIsolationKey(SchemefulSite(top_frame_site),
SchemefulSite(frame_site),
std::optional<base::UnguessableToken>(nonce),
network_isolation_partition) {}
NetworkIsolationKey::NetworkIsolationKey(
SchemefulSite&& top_frame_site,
SchemefulSite&& frame_site,
std::optional<base::UnguessableToken>&& nonce,
NetworkIsolationPartition network_isolation_partition)
: top_frame_site_(std::move(top_frame_site)),
frame_site_(std::make_optional(std::move(frame_site))),
nonce_(std::move(nonce)),
network_isolation_partition_(network_isolation_partition) {
DCHECK(!nonce_ || !nonce_->is_empty());
}
NetworkIsolationKey::NetworkIsolationKey() = default;
NetworkIsolationKey::NetworkIsolationKey(
const NetworkIsolationKey& network_isolation_key) = default;
NetworkIsolationKey::NetworkIsolationKey(
NetworkIsolationKey&& network_isolation_key) = default;
NetworkIsolationKey::~NetworkIsolationKey() = default;
NetworkIsolationKey& NetworkIsolationKey::operator=(
const NetworkIsolationKey& network_isolation_key) = default;
NetworkIsolationKey& NetworkIsolationKey::operator=(
NetworkIsolationKey&& network_isolation_key) = default;
NetworkIsolationKey NetworkIsolationKey::CreateTransientForTesting() {
SchemefulSite site_with_opaque_origin;
return NetworkIsolationKey(site_with_opaque_origin, site_with_opaque_origin);
}
NetworkIsolationKey NetworkIsolationKey::CreateWithNewFrameSite(
const SchemefulSite& new_frame_site) const {
if (!top_frame_site_)
return NetworkIsolationKey();
return NetworkIsolationKey(top_frame_site_.value(), new_frame_site, nonce_,
network_isolation_partition_);
}
std::optional<std::string> NetworkIsolationKey::ToCacheKeyString() const {
if (IsTransient())
return std::nullopt;
std::string network_isolation_partition_string =
network_isolation_partition_ == NetworkIsolationPartition::kGeneral
? ""
: " " + GetNetworkIsolationPartitionStringForCacheKey(
network_isolation_partition_);
return top_frame_site_->Serialize() + " " + frame_site_->Serialize() +
network_isolation_partition_string;
}
std::string NetworkIsolationKey::ToDebugString() const {
// The space-separated serialization of |top_frame_site_| and
// |frame_site_|.
std::string return_string = GetSiteDebugString(top_frame_site_);
return_string += " " + GetSiteDebugString(frame_site_);
if (nonce_.has_value()) {
return_string += " (with nonce " + nonce_->ToString() + ")";
}
if (network_isolation_partition_ != NetworkIsolationPartition::kGeneral) {
return_string +=
" (" +
NetworkIsolationPartitionToDebugString(network_isolation_partition_) +
")";
}
return return_string;
}
bool NetworkIsolationKey::IsFullyPopulated() const {
if (!top_frame_site_.has_value()) {
return false;
}
if (!frame_site_.has_value()) {
return false;
}
return true;
}
bool NetworkIsolationKey::IsTransient() const {
if (!IsFullyPopulated())
return true;
return IsOpaque();
}
bool NetworkIsolationKey::IsEmpty() const {
return !top_frame_site_.has_value() && !frame_site_.has_value();
}
bool NetworkIsolationKey::IsOpaque() const {
if (top_frame_site_->opaque()) {
return true;
}
if (frame_site_->opaque()) {
return true;
}
if (nonce_.has_value()) {
return true;
}
return false;
}
NET_EXPORT std::ostream& operator<<(std::ostream& os,
const NetworkIsolationKey& nik) {
os << nik.ToDebugString();
return os;
}
} // namespace net
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