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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "extensions/common/api/declarative_net_request/dnr_manifest_data.h"
#include <utility>
#include "base/check_op.h"
#include "base/no_destructor.h"
#include "extensions/common/api/declarative_net_request.h"
namespace extensions {
namespace dnr_api = api::declarative_net_request;
namespace declarative_net_request {
DNRManifestData::RulesetInfo::RulesetInfo() = default;
DNRManifestData::RulesetInfo::~RulesetInfo() = default;
DNRManifestData::RulesetInfo::RulesetInfo(RulesetInfo&&) = default;
DNRManifestData::RulesetInfo& DNRManifestData::RulesetInfo::operator=(
RulesetInfo&&) = default;
DNRManifestData::DNRManifestData(std::vector<RulesetInfo> rulesets)
: rulesets(std::move(rulesets)) {
for (const RulesetInfo& info : this->rulesets)
manifest_id_to_ruleset_map.emplace(info.manifest_id, &info);
}
DNRManifestData::~DNRManifestData() = default;
// static
const std::vector<DNRManifestData::RulesetInfo>& DNRManifestData::GetRulesets(
const Extension& extension) {
// Since we return a reference, use a function local static for the case where
// the extension didn't specify any rulesets.
static const base::NoDestructor<std::vector<DNRManifestData::RulesetInfo>>
empty_vector;
Extension::ManifestData* data =
extension.GetManifestData(dnr_api::ManifestKeys::kDeclarativeNetRequest);
if (!data)
return *empty_vector;
return static_cast<DNRManifestData*>(data)->rulesets;
}
const DNRManifestData::ManifestIDToRulesetMap&
DNRManifestData::GetManifestIDToRulesetMap(const Extension& extension) {
// Since we return a reference, use a function local static for the case where
// the extension didn't specify any rulesets.
static const base::NoDestructor<ManifestIDToRulesetMap> empty_map;
Extension::ManifestData* data =
extension.GetManifestData(dnr_api::ManifestKeys::kDeclarativeNetRequest);
if (!data)
return *empty_map;
return static_cast<DNRManifestData*>(data)->manifest_id_to_ruleset_map;
}
// static
const DNRManifestData::RulesetInfo& DNRManifestData::GetRuleset(
const Extension& extension,
RulesetID ruleset_id) {
Extension::ManifestData* data =
extension.GetManifestData(dnr_api::ManifestKeys::kDeclarativeNetRequest);
DCHECK(data);
const std::vector<DNRManifestData::RulesetInfo>& rulesets =
static_cast<DNRManifestData*>(data)->rulesets;
int index = ruleset_id.value() - kMinValidStaticRulesetID.value();
CHECK_GE(index, 0);
CHECK_LT(static_cast<size_t>(index), rulesets.size());
return rulesets[index];
}
} // namespace declarative_net_request
} // namespace extensions
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