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74 lines
2.2 KiB
74 lines
2.2 KiB
7 months ago
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/*
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "host/frontend/webrtc/lib/utils.h"
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#include <map>
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#include <json/json.h>
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namespace cuttlefish {
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namespace webrtc_streaming {
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namespace {
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std::string ValidateField(const Json::Value &obj, const std::string &type,
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const std::string &field_name,
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const Json::ValueType &field_type, bool required) {
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if (!obj.isMember(field_name) && !required) {
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return "";
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}
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if (!(obj.isMember(field_name) &&
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obj[field_name].isConvertibleTo(field_type))) {
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std::string error_msg = "Expected a field named '";
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error_msg += field_name + "' of type '";
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error_msg += std::to_string(field_type);
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error_msg += "'";
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if (!type.empty()) {
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error_msg += " in message of type '" + type + "'";
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}
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error_msg += ".";
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return error_msg;
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}
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return "";
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}
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} // namespace
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ValidationResult ValidationResult::ValidateJsonObject(
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const Json::Value &obj, const std::string &type,
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const std::map<std::string, Json::ValueType> &required_fields,
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const std::map<std::string, Json::ValueType> &optional_fields) {
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for (const auto &field_spec : required_fields) {
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auto result =
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ValidateField(obj, type, field_spec.first, field_spec.second, true);
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if (!result.empty()) {
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return {result};
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}
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}
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for (const auto &field_spec : optional_fields) {
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auto result =
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ValidateField(obj, type, field_spec.first, field_spec.second, false);
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if (!result.empty()) {
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return {result};
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}
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}
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return {};
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}
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} // namespace webrtc_streaming
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} // namespace cuttlefish
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