SafeHttpServer.cpp

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/*
        This file is part of cpp-ethereum.

        cpp-ethereum 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, either version 3 of the License, or
        (at your option) any later version.

        cpp-ethereum 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 cpp-ethereum.  If not, see <http://www.gnu.org/licenses/>.
*/
#include <microhttpd.h>
#include <sstream>
#include "SafeHttpServer.h"
using namespace std;
using namespace dev;

struct mhd_coninfo
{
        struct MHD_PostProcessor *postprocessor;
        MHD_Connection* connection;
        stringstream request;
        jsonrpc::HttpServer* server;
        int code;
};

bool SafeHttpServer::SendResponse(string const& _response, void* _addInfo)
{
        struct mhd_coninfo* client_connection = static_cast<struct mhd_coninfo*>(_addInfo);
        struct MHD_Response *result = MHD_create_response_from_buffer(
                _response.size(),
                static_cast<void *>(const_cast<char *>(_response.c_str())),
                MHD_RESPMEM_MUST_COPY
        );

        MHD_add_response_header(result, "Content-Type", "application/json");
        MHD_add_response_header(result, "Access-Control-Allow-Origin", m_allowedOrigin.c_str());

        int ret = MHD_queue_response(client_connection->connection, client_connection->code, result);
        MHD_destroy_response(result);
        return ret == MHD_YES;
}

bool SafeHttpServer::SendOptionsResponse(void* _addInfo)
{
        struct mhd_coninfo* client_connection = static_cast<struct mhd_coninfo*>(_addInfo);
        struct MHD_Response *result = MHD_create_response_from_buffer(0, nullptr, MHD_RESPMEM_MUST_COPY);

        MHD_add_response_header(result, "Allow", "POST, OPTIONS");
        MHD_add_response_header(result, "Access-Control-Allow-Origin", m_allowedOrigin.c_str());
        MHD_add_response_header(result, "Access-Control-Allow-Headers", "origin, content-type, accept");
        MHD_add_response_header(result, "DAV", "1");

        int ret = MHD_queue_response(client_connection->connection, client_connection->code, result);
        MHD_destroy_response(result);
        return ret == MHD_YES;
}