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/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.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 2.1 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, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <iostream>
#include <sstream>
#include <algorithm>
#include "main.h" // for g_settings
#include "settings.h"
#include "serverlist.h"
#include "filesys.h"
#include "porting.h"
#include "log.h"
#include "json/json.h"
#include "convert_json.h"
#if USE_CURL
#include <curl/curl.h>
#endif
namespace ServerList
{
std::string getFilePath()
{
std::string serverlist_file = g_settings->get("serverlist_file");
std::string dir_path = std::string("client") + DIR_DELIM
+ "serverlist" + DIR_DELIM;
fs::CreateDir(porting::path_user + DIR_DELIM + "client");
fs::CreateDir(porting::path_user + DIR_DELIM + dir_path);
std::string rel_path = dir_path + serverlist_file;
std::string path = porting::path_user + DIR_DELIM + rel_path;
return path;
}
std::vector<ServerListSpec> getLocal()
{
std::string path = ServerList::getFilePath();
std::string liststring;
if(fs::PathExists(path))
{
std::ifstream istream(path.c_str());
if(istream.is_open())
{
std::ostringstream ostream;
ostream << istream.rdbuf();
liststring = ostream.str();
istream.close();
}
}
return ServerList::deSerialize(liststring);
}
#if USE_CURL
std::vector<ServerListSpec> getOnline()
{
Json::Value root = fetchJsonValue((g_settings->get("serverlist_url")+"/list").c_str(),0);
std::vector<ServerListSpec> serverlist;
if (root.isArray()) {
for (unsigned int i = 0; i < root.size(); i++)
{
if (root[i].isObject()) {
serverlist.push_back(root[i]);
}
}
}
return serverlist;
}
#endif
/*
Delete a server fromt he local favorites list
*/
bool deleteEntry (ServerListSpec server)
{
std::vector<ServerListSpec> serverlist = ServerList::getLocal();
for(unsigned i = 0; i < serverlist.size(); i++)
{
if (serverlist[i]["address"] == server["address"]
&& serverlist[i]["port"] == server["port"])
{
serverlist.erase(serverlist.begin() + i);
}
}
std::string path = ServerList::getFilePath();
std::ofstream stream (path.c_str());
if (stream.is_open())
{
stream<<ServerList::serialize(serverlist);
return true;
}
return false;
}
/*
Insert a server to the local favorites list
*/
bool insert (ServerListSpec server)
{
// Remove duplicates
ServerList::deleteEntry(server);
std::vector<ServerListSpec> serverlist = ServerList::getLocal();
// Insert new server at the top of the list
serverlist.insert(serverlist.begin(), server);
std::string path = ServerList::getFilePath();
std::ofstream stream (path.c_str());
if (stream.is_open())
{
stream<<ServerList::serialize(serverlist);
}
return false;
}
std::vector<ServerListSpec> deSerialize(std::string liststring)
{
std::vector<ServerListSpec> serverlist;
std::istringstream stream(liststring);
std::string line, tmp;
while (std::getline(stream, line))
{
std::transform(line.begin(), line.end(),line.begin(), ::toupper);
if (line == "[SERVER]")
{
ServerListSpec thisserver;
std::getline(stream, tmp);
thisserver["name"] = tmp;
std::getline(stream, tmp);
thisserver["address"] = tmp;
std::getline(stream, tmp);
thisserver["port"] = tmp;
std::getline(stream, tmp);
thisserver["description"] = tmp;
serverlist.push_back(thisserver);
}
}
return serverlist;
}
std::string serialize(std::vector<ServerListSpec> serverlist)
{
std::string liststring;
for(std::vector<ServerListSpec>::iterator i = serverlist.begin(); i != serverlist.end(); i++)
{
liststring += "[server]\n";
liststring += (*i)["name"].asString() + "\n";
liststring += (*i)["address"].asString() + "\n";
liststring += (*i)["port"].asString() + "\n";
liststring += (*i)["description"].asString() + "\n";
liststring += "\n";
}
return liststring;
}
std::string serializeJson(std::vector<ServerListSpec> serverlist)
{
Json::Value root;
Json::Value list(Json::arrayValue);
for(std::vector<ServerListSpec>::iterator i = serverlist.begin(); i != serverlist.end(); i++)
{
list.append(*i);
}
root["list"] = list;
Json::StyledWriter writer;
return writer.write( root );
}
#if USE_CURL
static size_t ServerAnnounceCallback(void *contents, size_t size, size_t nmemb, void *userp)
{
return 0;
//((std::string*)userp)->append((char*)contents, size * nmemb);
//return size * nmemb;
}
void sendAnnounce(std::string action, u16 clients, double uptime, std::string gameid) {
Json::Value server;
if (action.size())
server["action"] = action;
server["port"] = g_settings->get("port");
if (action != "del") {
server["name"] = g_settings->get("server_name");
server["description"] = g_settings->get("server_description");
server["address"] = g_settings->get("server_address");
server["version"] = VERSION_STRING;
server["url"] = g_settings->get("server_url");
server["creative"] = g_settings->get("creative_mode");
server["damage"] = g_settings->get("enable_damage");
server["dedicated"] = g_settings->get("server_dedicated");
server["password"] = g_settings->getBool("disallow_empty_password");
server["pvp"] = g_settings->getBool("enable_pvp");
server["clients"] = clients;
server["clients_max"] = g_settings->get("max_users");
if (uptime >=1) server["uptime"] = (int)uptime;
if (gameid!="") server["gameid"] = gameid;
}
if(server["action"] == "start")
actionstream << "announcing to " << g_settings->get("serverlist_url") << std::endl;
Json::StyledWriter writer;
CURL *curl;
curl = curl_easy_init();
if (curl)
{
CURLcode res;
curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1);
curl_easy_setopt(curl, CURLOPT_URL, (g_settings->get("serverlist_url")+std::string("/announce?json=")+curl_easy_escape(curl, writer.write( server ).c_str(), 0)).c_str());
//curl_easy_setopt(curl, CURLOPT_USERAGENT, "minetest");
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, ServerList::ServerAnnounceCallback);
//curl_easy_setopt(curl, CURLOPT_WRITEDATA, &liststring);
curl_easy_setopt(curl, CURLOPT_TIMEOUT, 1);
curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, 1);
res = curl_easy_perform(curl);
//if (res != CURLE_OK)
// errorstream<<"Serverlist at url "<<g_settings->get("serverlist_url")<<" not found (internet connection?)"<<std::endl;
curl_easy_cleanup(curl);
}
}
#endif
} //namespace ServerList
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