TShock/TShockAPI/UpdateManager.cs
2012-02-21 15:56:34 +00:00

102 lines
No EOL
2.8 KiB
C#

/*
TShock, a server mod for Terraria
Copyright (C) 2011 The TShock Team
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, 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 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/>.
*/
using System;
using System.Collections.Generic;
using System.Net;
using System.Threading;
using Newtonsoft.Json;
namespace TShockAPI
{
internal class UpdateManager
{
private static string updateUrl = "http://shankshock.com/tshock-update.json";
public static DateTime lastcheck = DateTime.MinValue;
/// <summary>
/// Check once every X minutes.
/// </summary>
private static readonly int CheckXMinutes = 30;
public static void UpdateProcedureCheck()
{
if ((DateTime.Now - lastcheck).TotalMinutes >= CheckXMinutes)
{
ThreadPool.QueueUserWorkItem(CheckUpdate);
lastcheck = DateTime.Now;
}
}
public static void CheckUpdate(object o)
{
var updates = ServerIsOutOfDate();
if (updates != null)
{
NotifyAdministrators(updates);
}
}
/// <summary>
/// Checks to see if the server is out of date.
/// </summary>
/// <returns></returns>
private static Dictionary<string, string> ServerIsOutOfDate()
{
using (var client = new WebClient())
{
client.Headers.Add("user-agent",
"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.0.3705;)");
try
{
string updatejson = client.DownloadString(updateUrl);
var update = JsonConvert.DeserializeObject<Dictionary<string, string>>(updatejson);
var version = new Version(update["version"]);
if (TShock.VersionNum.CompareTo(version) < 0)
return update;
}
catch (Exception e)
{
Log.Error(e.ToString());
}
return null;
}
}
private static void NotifyAdministrators(Dictionary<string, string> update)
{
var changes = update["changes"].Split(new[] {'\n'}, StringSplitOptions.RemoveEmptyEntries);
NotifyAdministrator(TSPlayer.Server, changes);
foreach (TSPlayer player in TShock.Players)
{
if (player != null && player.Active && player.Group.HasPermission(Permissions.maintenance))
{
NotifyAdministrator(player, changes);
}
}
}
private static void NotifyAdministrator(TSPlayer player, string[] changes)
{
player.SendMessage("The server is out of date.", Color.Red);
for (int j = 0; j < changes.Length; j++)
{
player.SendMessage(changes[j], Color.Red);
}
}
}
}