/**
* Relational pipes
* Copyright © 2022 František Kučera (Frantovo.cz, GlobalCode.info)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <memory>
#include <string>
#include <vector>
#include <codecvt>
#include <regex>
#include <stdexcept>
#include <curl/curl.h>
#include <relpipe/common/type/typedefs.h>
#include <relpipe/reader/TypeId.h>
#include <relpipe/reader/handlers/RelationalReaderStringHandler.h>
#include <relpipe/reader/handlers/AttributeMetadata.h>
#include <relpipe/writer/Factory.h>
#include <relpipe/writer/TypeId.h>
#include <relpipe/cli/RelpipeCLIException.h>
#include "Configuration.h"
#include "HTTPClient.h"
namespace relpipe {
namespace tr {
namespace http {
class HTTPHandler : public relpipe::reader::handlers::RelationalReaderStringHandler {
private:
std::wstring_convert<codecvt_utf8<wchar_t>> convertor; // TODO: support also other encodings.
shared_ptr<relpipe::writer::RelationalWriter> relationalWriter;
Configuration configuration;
std::vector<relpipe::reader::handlers::AttributeMetadata> currentReaderMetadata;
std::vector<relpipe::writer::AttributeMetadata> currentWriterMetadata;
size_t currentAttributeIndex = 0;
size_t currentRecordNumber = 1;
public:
HTTPHandler(shared_ptr<relpipe::writer::RelationalWriter> relationalWriter, Configuration configuration) : relationalWriter(relationalWriter), configuration(configuration) {
}
virtual ~HTTPHandler() {
}
void startRelation(relpipe::common::type::StringX name, std::vector<relpipe::reader::handlers::AttributeMetadata> attributes) override {
relationalWriter->startRelation(name + L"_curl_info",{
{L"name", relpipe::writer::TypeId::STRING},
{L"value", relpipe::writer::TypeId::STRING}
}, true);
relationalWriter->writeAttribute(L"curl version");
relationalWriter->writeAttribute(convertor.from_bytes(curl_version()));
relationalWriter->startRelation(name + L"_curl_response",{
{L"url", relpipe::writer::TypeId::STRING},
{L"body", relpipe::writer::TypeId::STRING},
{L"response_code", relpipe::writer::TypeId::INTEGER},
// {L"success", relpipe::writer::TypeId::BOOLEAN},
}, true);
}
void attribute(const relpipe::common::type::StringX& value) override {
std::shared_ptr<HTTPClient> http(HTTPClient::open());
HTTPClient::Request request;
request.method = HTTPClient::Method::GET;
request.url = convertor.to_bytes(value);
HTTPClient::Response response = http->exchange(request);
relpipe::common::type::Integer responseCode = response.responseCode;
// std::cerr << "url = >>>" << convertor.to_bytes(value) << "<<<" << std::endl;
// std::cerr << "body = >>>" << response.body << "<<<" << std::endl;
relationalWriter->writeAttribute(value);
relationalWriter->writeAttribute(convertor.from_bytes(response.body));
relationalWriter->writeAttribute(&responseCode, typeid (responseCode));
// relationalWriter->writeAttribute(&response.success, typeid (response.success));
}
void endOfPipe() {
}
};
}
}
}