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96 lines
2.7 KiB
C++
96 lines
2.7 KiB
C++
// Copyright 2021 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "net/base/connection_endpoint_metadata.h"
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#include <optional>
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#include <string>
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#include <utility>
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#include <vector>
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#include "base/base64.h"
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#include "base/values.h"
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namespace net {
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namespace {
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const char kSupportedProtocolAlpnsKey[] = "supported_protocol_alpns";
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const char kEchConfigListKey[] = "ech_config_list";
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const char kTargetNameKey[] = "target_name";
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} // namespace
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ConnectionEndpointMetadata::ConnectionEndpointMetadata() = default;
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ConnectionEndpointMetadata::ConnectionEndpointMetadata(
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std::vector<std::string> supported_protocol_alpns,
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EchConfigList ech_config_list,
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std::string target_name)
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: supported_protocol_alpns(std::move(supported_protocol_alpns)),
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ech_config_list(std::move(ech_config_list)),
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target_name(std::move(target_name)) {}
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ConnectionEndpointMetadata::~ConnectionEndpointMetadata() = default;
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ConnectionEndpointMetadata::ConnectionEndpointMetadata(
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const ConnectionEndpointMetadata&) = default;
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ConnectionEndpointMetadata::ConnectionEndpointMetadata(
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ConnectionEndpointMetadata&&) = default;
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base::Value ConnectionEndpointMetadata::ToValue() const {
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base::Value::Dict dict;
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base::Value::List alpns_list;
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for (const std::string& alpn : supported_protocol_alpns) {
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alpns_list.Append(alpn);
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}
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dict.Set(kSupportedProtocolAlpnsKey, std::move(alpns_list));
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dict.Set(kEchConfigListKey, base::Base64Encode(ech_config_list));
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if (!target_name.empty()) {
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dict.Set(kTargetNameKey, target_name);
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}
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return base::Value(std::move(dict));
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}
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// static
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std::optional<ConnectionEndpointMetadata> ConnectionEndpointMetadata::FromValue(
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const base::Value& value) {
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const base::Value::Dict* dict = value.GetIfDict();
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if (!dict)
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return std::nullopt;
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const base::Value::List* alpns_list =
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dict->FindList(kSupportedProtocolAlpnsKey);
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const std::string* ech_config_list_value =
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dict->FindString(kEchConfigListKey);
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const std::string* target_name_value = dict->FindString(kTargetNameKey);
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if (!alpns_list || !ech_config_list_value)
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return std::nullopt;
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ConnectionEndpointMetadata metadata;
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std::vector<std::string> alpns;
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for (const base::Value& alpn : *alpns_list) {
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if (!alpn.is_string())
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return std::nullopt;
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metadata.supported_protocol_alpns.push_back(alpn.GetString());
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}
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std::optional<std::vector<uint8_t>> decoded =
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base::Base64Decode(*ech_config_list_value);
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if (!decoded)
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return std::nullopt;
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metadata.ech_config_list = std::move(*decoded);
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if (target_name_value) {
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metadata.target_name = *target_name_value;
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}
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return metadata;
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}
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} // namespace net
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