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/*
* Copyright (c) 2017-2019 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <hicn/transport/core/packet.h>
#include <hicn/transport/portability/transport_portability.h>
#include <array>
namespace transport {
namespace core {
namespace {
template <typename T>
TRANSPORT_ALWAYS_INLINE void checkPointer(T *pointer) {
if (pointer == nullptr) {
throw errors::NullPointerException();
}
}
template <typename EnumType>
TRANSPORT_ALWAYS_INLINE void setValueToJson(Json::Value &root, EnumType value) {
root[JSONKey<EnumType>::key] = static_cast<uint8_t>(value);
}
template <typename EnumType>
TRANSPORT_ALWAYS_INLINE EnumType getValueFromJson(const Json::Value &root) {
return static_cast<EnumType>(root[JSONKey<EnumType>::key].asUInt());
};
} // namespace
JSONManifestEncoder::JSONManifestEncoder(Packet &packet) : packet_(packet) {}
JSONManifestEncoder::~JSONManifestEncoder() {}
TRANSPORT_ALWAYS_INLINE JSONManifestEncoder &JSONManifestEncoder::encodeImpl() {
Json::StreamWriterBuilder writer_builder;
Json::StreamWriter *fast_writer = writer_builder.newStreamWriter();
asio::streambuf strbuf;
strbuf.prepare(1500);
std::ostream stream(&strbuf);
fast_writer->write(root_, &stream);
const uint8_t *buffer = asio::buffer_cast<const uint8_t *>(strbuf.data());
packet_.setPayload(buffer, strbuf.size());
delete fast_writer;
return *this;
}
TRANSPORT_ALWAYS_INLINE JSONManifestEncoder &JSONManifestEncoder::clearImpl() {
root_.clear();
return *this;
}
TRANSPORT_ALWAYS_INLINE JSONManifestEncoder &
JSONManifestEncoder::setHashAlgorithmImpl(HashAlgorithm algorithm) {
setValueToJson(root_, algorithm);
return *this;
}
JSONManifestEncoder &JSONManifestEncoder::setManifestTypeImpl(
ManifestType manifest_type) {
setValueToJson(root_, manifest_type);
return *this;
}
JSONManifestEncoder &JSONManifestEncoder::setNextSegmentCalculationStrategyImpl(
NextSegmentCalculationStrategy strategy) {
setValueToJson(root_, strategy);
return *this;
}
TRANSPORT_ALWAYS_INLINE JSONManifestEncoder &
JSONManifestEncoder::setBaseNameImpl(const core::Name &base_name) {
root_[JSONKey<core::Name>::key] = base_name.toString().c_str();
return *this;
}
TRANSPORT_ALWAYS_INLINE JSONManifestEncoder &
JSONManifestEncoder::addSuffixAndHashImpl(uint32_t suffix,
const utils::CryptoHash &hash) {
throw errors::NotImplementedException();
// Json::Value value(Json::arrayValue);
// value.append(Json::Value(suffix));
// value.append(Json::Value(Json::Value::UInt64 (hash)));
// root_[JSONKey<SuffixHashList>::key].append(value);
return *this;
}
TRANSPORT_ALWAYS_INLINE JSONManifestEncoder &
JSONManifestEncoder::setIsFinalManifestImpl(bool is_last) {
root_[JSONKey<bool>::final_manifest] = is_last;
return *this;
}
TRANSPORT_ALWAYS_INLINE JSONManifestEncoder &
JSONManifestEncoder::setVersionImpl(ManifestVersion version) {
setValueToJson(root_, version);
return *this;
}
TRANSPORT_ALWAYS_INLINE JSONManifestEncoder &
JSONManifestEncoder::setSuffixHashListImpl(
const typename JSON::SuffixList &name_hash_list) {
throw errors::NotImplementedException();
// for (auto &suffix : name_hash_list) {
// addSuffixAndHashImpl(suffix.first, suffix.second);
// }
//
// return *this;
}
TRANSPORT_ALWAYS_INLINE std::size_t
JSONManifestEncoder::estimateSerializedLengthImpl(
std::size_t number_of_entries) {
Json::StreamWriterBuilder writer_builder;
Json::StreamWriter *fast_writer = writer_builder.newStreamWriter();
asio::streambuf strbuf;
strbuf.prepare(1500);
std::ostream stream(&strbuf);
fast_writer->write(root_, &stream);
return strbuf.size();
}
TRANSPORT_ALWAYS_INLINE JSONManifestEncoder &JSONManifestEncoder::updateImpl() {
throw errors::NotImplementedException();
}
TRANSPORT_ALWAYS_INLINE JSONManifestEncoder &
JSONManifestEncoder::setFinalBlockNumberImpl(std::uint32_t final_block_number) {
throw errors::NotImplementedException();
}
TRANSPORT_ALWAYS_INLINE std::size_t
JSONManifestEncoder::getManifestHeaderSizeImpl() {
return 0;
}
JSONManifestDecoder::JSONManifestDecoder(Packet &packet) : packet_(packet) {}
JSONManifestDecoder::~JSONManifestDecoder() {}
TRANSPORT_ALWAYS_INLINE void JSONManifestDecoder::decodeImpl() {
auto array = packet_.getPayload();
auto payload = array.data();
auto payload_size = array.length();
Json::CharReaderBuilder reader_builder;
Json::CharReader *reader = reader_builder.newCharReader();
std::string errors;
if (!reader->parse((char *)payload, (char *)payload + payload_size, &root_,
&errors)) {
TRANSPORT_LOGE("Error parsing manifest!");
TRANSPORT_LOGE("%s", errors.c_str());
delete reader;
throw errors::MalformedPacketException();
}
delete reader;
}
TRANSPORT_ALWAYS_INLINE JSONManifestDecoder &JSONManifestDecoder::clearImpl() {
root_.clear();
return *this;
}
TRANSPORT_ALWAYS_INLINE ManifestType
JSONManifestDecoder::getManifestTypeImpl() const {
return getValueFromJson<ManifestType>(root_);
}
TRANSPORT_ALWAYS_INLINE HashAlgorithm
JSONManifestDecoder::getHashAlgorithmImpl() const {
return getValueFromJson<HashAlgorithm>(root_);
}
TRANSPORT_ALWAYS_INLINE NextSegmentCalculationStrategy
JSONManifestDecoder::getNextSegmentCalculationStrategyImpl() const {
return getValueFromJson<NextSegmentCalculationStrategy>(root_);
}
TRANSPORT_ALWAYS_INLINE typename JSON::SuffixList
JSONManifestDecoder::getSuffixHashListImpl() {
throw errors::NotImplementedException();
// SuffixHashList hash_list;
//
// Json::Value &array = root_[JSONKey<SuffixHashList>::key];
//
// for (Json::Value::ArrayIndex i = 0;
// i != array.size();
// i++) {
// hash_list[array[i][0].asUInt()] = array[i][1].asUInt64();
// }
//
// return hash_list;
}
TRANSPORT_ALWAYS_INLINE core::Name JSONManifestDecoder::getBaseNameImpl()
const {
return core::Name(root_[JSONKey<core::Name>::key].asCString());
}
TRANSPORT_ALWAYS_INLINE bool JSONManifestDecoder::getIsFinalManifestImpl()
const {
return root_[JSONKey<bool>::final_manifest].asBool();
}
TRANSPORT_ALWAYS_INLINE ManifestVersion
JSONManifestDecoder::getVersionImpl() const {
return getValueFromJson<ManifestVersion>(root_);
}
TRANSPORT_ALWAYS_INLINE uint32_t
JSONManifestDecoder::getFinalBlockNumberImpl() const {
return 0;
}
} // end namespace core
} // end namespace transport
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