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/*
* JsonRpc-Cpp - JSON-RPC implementation.
* Copyright (C) 2008-2011 Sebastien Vincent <sebastien.vincent@cppextrem.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* \file jsonrpc_httpserver.cpp
* \brief JSON-RPC HTTPServer.
* \author Eugene Petrov
*/
#include "jsonrpc_httpserver.h"
#include <string>
#include <cstring>
#include <cstdlib>
#include "mongoose.h"
namespace Json
{
namespace Rpc
{
struct mg_context *ctx;
static int begin_request_handler(struct mg_connection *conn) {
const struct mg_request_info *ri = mg_get_request_info(conn);
int post_data_len = 0;
char* post_data = NULL;
if(strcmp(ri->request_method,"POST") == 0) {
HTTPServer* serv = (HTTPServer*) ri->user_data;
sscanf(mg_get_header(conn,"Content-Length"),"%d",&post_data_len);
post_data = (char*)malloc(post_data_len+1);
mg_read(conn, post_data, post_data_len);
serv->onRequest(post_data,conn);
free(post_data);
}
return 1; // Mark request as processed
}
bool HTTPServer::onRequest(const char* request, void* addInfo)
{
Json::Value response;
m_jsonHandler.Process(std::string(request), response);
std::string res = m_jsonHandler.GetString(response);
sendResponse(res, addInfo);
return true;
}
HTTPServer::HTTPServer(const std::string& address, uint16_t port)
{
m_address = address;
m_port = port;
ctx = NULL;
}
HTTPServer::~HTTPServer()
{
}
bool HTTPServer::startPolling()
{
struct mg_callbacks callbacks;
char tmp_port[30];
sprintf(tmp_port,"%s:%d", GetAddress().c_str(),GetPort());
const char *options[] = {"listening_ports", tmp_port,"num_threads", "1", NULL };
memset(&callbacks, 0, sizeof(callbacks));
callbacks.begin_request = begin_request_handler;
ctx = mg_start(&callbacks, this, options);
if(!ctx)
return false;
return true;
}
bool HTTPServer::stopPolling()
{
if(ctx)
mg_stop(ctx);
return true;
}
std::string HTTPServer::GetAddress() const
{
return m_address;
}
uint16_t HTTPServer::GetPort() const
{
return m_port;
}
void HTTPServer::AddMethod(CallbackMethod* method)
{
m_jsonHandler.AddMethod(method);
}
void HTTPServer::DeleteMethod(const std::string& method)
{
m_jsonHandler.DeleteMethod(method);
}
bool HTTPServer::sendResponse(std::string & response, void *addInfo)
{
struct mg_connection* conn = (struct mg_connection*)addInfo;
std::string tmp = "HTTP/1.1 200 OK\r\nServer: eidcppd server\r\nContent-Type: application/json; charset=utf-8\r\nContent-Length: ";
char v[16];
snprintf(v, sizeof(v), "%u", response.size());
tmp += v;
tmp += "\r\n\r\n";
tmp += response;
if(mg_write(conn, tmp.c_str(), tmp.size()) > 0) {
return true;
} else {
return false;
}
}
} /* namespace Rpc */
} /* namespace Json */
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