minetest/src/serverlist.cpp

186 lines
4.5 KiB
C++
Raw Normal View History

/*
Minetest-c55
Copyright (C) 2011 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"
#if USE_CURL
#include <curl/curl.h>
#endif
namespace ServerList
{
std::string getFilePath()
{
std::string serverlist_file = g_settings->get("serverlist_file");
std::string rel_path = std::string("client") + DIR_DELIM
+ "serverlist" + DIR_DELIM
+ serverlist_file;
std::string path = porting::path_share + 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(), std::ios::binary);
if(istream.is_open())
{
std::ostringstream ostream;
ostream << istream.rdbuf();
liststring = ostream.str();
istream.close();
}
}
return ServerList::deSerialize(liststring);
}
#if USE_CURL
static size_t WriteCallback(void *contents, size_t size, size_t nmemb, void *userp)
{
((std::string*)userp)->append((char*)contents, size * nmemb);
return size * nmemb;
}
std::vector<ServerListSpec> getOnline()
{
std::string liststring;
CURL *curl;
curl = curl_easy_init();
if (curl)
{
CURLcode res;
curl_easy_setopt(curl, CURLOPT_URL, g_settings->get("serverlist_url").c_str());
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, ServerList::WriteCallback);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, &liststring);
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);
}
return ServerList::deSerialize(liststring);
}
#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;
while (std::getline(stream, line))
{
std::transform(line.begin(), line.end(),line.begin(), ::toupper);
if (line == "[SERVER]")
{
ServerListSpec thisserver;
std::getline(stream, thisserver.name);
std::getline(stream, thisserver.address);
std::getline(stream, thisserver.port);
std::getline(stream, thisserver.description);
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 + "\n";
liststring += i->address + "\n";
liststring += i->port + "\n";
liststring += i->description + "\n";
liststring += "\n";
}
return liststring;
}
} //namespace ServerList