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/*
* Copyright (c) 2017 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 "icnet_http_server_acceptor.h"
#include "icnet_http_request.h"
#include "icnet_errors.h"
#include "icnet_utils_uri.h"
#include "icnet_utils_hash.h"
namespace icnet {
namespace http {
HTTPServerAcceptor::HTTPServerAcceptor(std::string &&server_locator, OnHttpRequest callback)
: HTTPServerAcceptor(server_locator, callback) {
}
HTTPServerAcceptor::HTTPServerAcceptor(std::string &server_locator, OnHttpRequest callback)
: callback_(callback) {
utils::Uri uri;
uri.parseProtocolAndLocator(server_locator);
std::string protocol = uri.getProtocol();
std::string locator = uri.getLocator();
std::transform(locator.begin(),
locator.end(),
locator.begin(),
::tolower);
std::transform(protocol.begin(),
protocol.end(),
protocol.begin(),
::tolower);
if (protocol != "http") {
throw errors::RuntimeException("Malformed server_locator. The locator format should be in the form http://locator");
}
std::stringstream ss;
ss << "ccnx:/";
ss << locator;
acceptor_producer_ = std::make_shared<transport::ProducerSocket>(ss.str());
}
void HTTPServerAcceptor::listen(bool async) {
acceptor_producer_->setSocketOption(icnet::transport::ProducerCallbacksOptions::INTEREST_INPUT,
(icnet::transport::ProducerInterestCallback) bind(&HTTPServerAcceptor::processIncomingInterest,
this,
std::placeholders::_1,
std::placeholders::_2));
acceptor_producer_->dispatch();
if (!async) {
acceptor_producer_->serveForever();
}
}
HttpRequest &&HTTPServerAcceptor::request() {
return std::move(request_);
}
void HTTPServerAcceptor::processIncomingInterest(transport::ProducerSocket &p, const transport::Interest &interest) {
// Temporary solution
transport::Name complete_name = interest.getName();
transport::Name request_name = complete_name.get(-1).isSegment() ? complete_name.getPrefix(-1) : complete_name;
transport::Name prefix;
acceptor_producer_->getSocketOption(transport::GeneralTransportOptions::NAME_PREFIX, prefix);
// Get the name of the HTTP method to compute
std::string method = request_name.get(prefix.getSegmentCount()).toString();
std::transform(method.begin(), method.end(), method.begin(), ::toupper);
std::string path;
std::string url_begin;
// This is done for getting rid of useless name components such as ccnx: or ndn:
if (request_name.getSegmentCount() > 2) {
std::string raw_path = request_name.getSubName(prefix.getSegmentCount() + 1).toString();
std::size_t pos = raw_path.find("/");
path = raw_path.substr(pos);
url_begin = prefix.getSubName(0).toString().substr(pos);
}
std::stringstream ss;
ss << "http:/" << url_begin << path;
std::string url = ss.str();
HTTPHeaders headers = {};
HTTPPayload payload = {};
if (method == "GET") {
HTTPRequest request(GET, url, headers, payload);
int request_id = utils::Hash::hash32(request.getRequestString().data(), request.getRequestString().size());
if (publishers_.find(request_id) != publishers_.end()) {
if (publishers_[request_id]) {
publishers_[request_id]->getProducer().onInterest(interest.getName(), interest);
return;
}
} else {
std::cout << "Request ID" << request_id << std::endl;
}
publishers_[request_id] = std::make_shared<HTTPServerPublisher>(request_name);
callback_(publishers_[request_id],
(uint8_t *) request.getRequestString().data(),
request.getRequestString().size(),
request_id);
}
}
std::map<int, std::shared_ptr<HTTPServerPublisher>>& HTTPServerAcceptor::getPublishers() {
return publishers_;
}
}
}
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