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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/http/client_connection.h>
#include <hicn/transport/utils/hash.h>
#define DEFAULT_BETA 0.99
#define DEFAULT_GAMMA 0.07
namespace transport {
namespace http {
using namespace transport;
HTTPClientConnection::HTTPClientConnection()
: consumer_(TransportProtocolAlgorithms::RAAQM, io_service_),
response_(std::make_shared<HTTPResponse>()),
timer_(nullptr) {
consumer_.setSocketOption(
ConsumerCallbacksOptions::CONTENT_OBJECT_TO_VERIFY,
(ConsumerContentObjectVerificationCallback)std::bind(
&HTTPClientConnection::verifyData, this, std::placeholders::_1,
std::placeholders::_2));
consumer_.setSocketOption(
ConsumerCallbacksOptions::CONTENT_RETRIEVED,
(ConsumerContentCallback)std::bind(
&HTTPClientConnection::processPayload, this, std::placeholders::_1,
std::placeholders::_2, std::placeholders::_3));
consumer_.connect();
std::shared_ptr<typename ConsumerSocket::Portal> portal;
consumer_.getSocketOption(GeneralTransportOptions::PORTAL, portal);
timer_ = std::make_unique<asio::steady_timer>(portal->getIoService());
}
HTTPClientConnection &HTTPClientConnection::get(
const std::string &url, HTTPHeaders headers, HTTPPayload payload,
std::shared_ptr<HTTPResponse> response) {
return sendRequest(url, HTTPMethod::GET, headers, payload, response);
}
HTTPClientConnection &HTTPClientConnection::sendRequest(
const std::string &url, HTTPMethod method, HTTPHeaders headers,
HTTPPayload payload, std::shared_ptr<HTTPResponse> response) {
if (!response) {
response = response_;
}
auto start = std::chrono::steady_clock::now();
HTTPRequest request(method, url, headers, payload);
std::string name = sendRequestGetReply(request, response);
auto end = std::chrono::steady_clock::now();
TRANSPORT_LOGI(
"%s %s [%s] duration: %llu [usec] %zu [bytes]\n",
method_map[method].c_str(), url.c_str(), name.c_str(),
(unsigned long long)std::chrono::duration_cast<std::chrono::microseconds>(
end - start)
.count(),
response->size());
return *this;
}
std::string HTTPClientConnection::sendRequestGetReply(
const HTTPRequest &request, std::shared_ptr<HTTPResponse> &response) {
const std::string &request_string = request.getRequestString();
const std::string &locator = request.getLocator();
// Hash it
uint32_t locator_hash =
utils::hash::fnv32_buf(locator.c_str(), locator.size());
uint64_t request_hash =
utils::hash::fnv64_buf(request_string.c_str(), request_string.size());
consumer_.setSocketOption(
ConsumerCallbacksOptions::INTEREST_OUTPUT,
(ConsumerInterestCallback)std::bind(
&HTTPClientConnection::processLeavingInterest, this,
std::placeholders::_1, std::placeholders::_2, request_string));
// Send content to producer piggybacking it through first interest (to fix)
response->clear();
// Factor hicn name using hash
std::stringstream stream;
stream << std::hex << http::default_values::ipv6_first_word << ":";
for (uint16_t *word = (uint16_t *)&locator_hash;
std::size_t(word) < (std::size_t(&locator_hash) + sizeof(locator_hash));
word++) {
stream << ":" << std::hex << *word;
}
for (uint16_t *word = (uint16_t *)&request_hash;
std::size_t(word) < (std::size_t(&request_hash) + sizeof(request_hash));
word++) {
stream << ":" << std::hex << *word;
}
stream << "|0";
ContentBuffer response_ptr =
std::static_pointer_cast<std::vector<uint8_t>>(response);
consumer_.consume(Name(stream.str()), response_ptr);
consumer_.stop();
return stream.str();
}
HTTPResponse HTTPClientConnection::response() {
// response_->parse();
return std::move(*response_);
}
void HTTPClientConnection::processPayload(ConsumerSocket &c,
std::size_t bytes_transferred,
const std::error_code &ec) {
if (ec) {
TRANSPORT_LOGE("Download failed!!");
}
}
bool HTTPClientConnection::verifyData(
ConsumerSocket &c, const core::ContentObject &contentObject) {
if (contentObject.getPayloadType() == PayloadType::CONTENT_OBJECT) {
TRANSPORT_LOGI("VERIFY CONTENT\n");
} else if (contentObject.getPayloadType() == PayloadType::MANIFEST) {
TRANSPORT_LOGI("VERIFY MANIFEST\n");
}
return true;
}
void HTTPClientConnection::processLeavingInterest(
ConsumerSocket &c, const core::Interest &interest, std::string &payload) {
if (interest.payloadSize() == 0) {
Interest &int2 = const_cast<Interest &>(interest);
int2.appendPayload((uint8_t *)payload.data(), payload.size());
}
}
ConsumerSocket &HTTPClientConnection::getConsumer() { return consumer_; }
HTTPClientConnection &HTTPClientConnection::stop() {
// This is thread safe and can be called from another thread
consumer_.stop();
return *this;
}
HTTPClientConnection &HTTPClientConnection::setTimeout(
const std::chrono::seconds &timeout) {
timer_->cancel();
timer_->expires_from_now(timeout);
timer_->async_wait([this](std::error_code ec) {
if (!ec) {
consumer_.stop();
}
});
return *this;
}
HTTPClientConnection &HTTPClientConnection::setCertificate(
const std::string &cert_path) {
if (consumer_.setSocketOption(GeneralTransportOptions::CERTIFICATE,
cert_path) == SOCKET_OPTION_NOT_SET) {
throw errors::RuntimeException("Error setting the certificate.");
}
return *this;
}
} // namespace http
} // namespace transport
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