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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.IO;
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using System.Linq;
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using System.Net.Http;
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using System.Reflection;
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using System.Threading;
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using System.Threading.Tasks;
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using System.Web.Script.Serialization;
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namespace SotfModLoader
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{
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public static class ModInstaller
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{
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public const string SiteUrl = "https://justinoros.github.io/sotf-modloader/";
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public const string StateFile = "sotf-modloader.json";
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private const int Concurrency = 6;
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private static readonly HttpClient Http = CreateClient();
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public static Version AppVersion
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{
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get { return Assembly.GetExecutingAssembly().GetName().Version; }
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}
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private static HttpClient CreateClient()
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{
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var client = new HttpClient();
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client.Timeout = TimeSpan.FromMinutes(10);
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client.DefaultRequestHeaders.UserAgent.ParseAdd("SotfModLoader/" + AppVersion.ToString(3));
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return client;
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}
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private static JavaScriptSerializer Json()
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{
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return new JavaScriptSerializer { MaxJsonLength = int.MaxValue };
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}
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public static async Task<Manifest> LoadManifest()
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{
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var text = await Http.GetStringAsync(SiteUrl + "manifest.json?t=" + DateTime.UtcNow.Ticks);
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return Json().Deserialize<Manifest>(text);
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}
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public static bool IsGameRunning()
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{
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return Process.GetProcessesByName("SonsOfTheForest").Length > 0 ||
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Process.GetProcessesByName("SonsOfTheForestDS").Length > 0;
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}
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public static string FullPath(string gameDir, string relative)
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{
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var root = Path.GetFullPath(gameDir).TrimEnd(Path.DirectorySeparatorChar) + Path.DirectorySeparatorChar;
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var full = Path.GetFullPath(Path.Combine(root, relative.Replace('/', Path.DirectorySeparatorChar)));
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if (!full.StartsWith(root, StringComparison.OrdinalIgnoreCase))
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throw new InvalidOperationException("The mod list contains an unsafe path: " + relative);
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return full;
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}
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public static ModStatus Status(string gameDir, Package mod)
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{
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if (string.IsNullOrEmpty(mod.dll) || !File.Exists(FullPath(gameDir, mod.dll)))
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return new ModStatus();
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string version = null;
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if (!string.IsNullOrEmpty(mod.manifestPath))
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version = ReadValue(FullPath(gameDir, mod.manifestPath), "version");
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return new ModStatus { Installed = true, Version = version, Current = version == mod.version };
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}
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public static ModStatus RedLoaderStatus(string gameDir, Package redloader)
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{
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var installed = File.Exists(Path.Combine(gameDir, "version.dll")) &&
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Directory.Exists(Path.Combine(gameDir, "_Redloader"));
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if (!installed)
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return new ModStatus();
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var version = ReadValue(Path.Combine(gameDir, StateFile), "redloader");
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return new ModStatus { Installed = true, Version = version, Current = version == redloader.version };
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}
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private static string ReadValue(string file, string key)
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{
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try
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{
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if (!File.Exists(file))
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return null;
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var data = Json().DeserializeObject(File.ReadAllText(file)) as Dictionary<string, object>;
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object value;
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if (data != null && data.TryGetValue(key, out value) && value != null)
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return value.ToString();
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}
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catch
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{
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}
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return null;
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}
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public static void WriteRedLoaderVersion(string gameDir, string version)
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{
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var file = Path.Combine(gameDir, StateFile);
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Dictionary<string, object> data = null;
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try
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{
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if (File.Exists(file))
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data = Json().DeserializeObject(File.ReadAllText(file)) as Dictionary<string, object>;
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}
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catch
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{
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}
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if (data == null)
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data = new Dictionary<string, object>();
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data["redloader"] = version;
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File.WriteAllText(file, Json().Serialize(data));
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}
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private static string FileUrl(Package pkg, string path)
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{
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return SiteUrl + pkg.@base + string.Join("/", path.Split('/').Select(Uri.EscapeDataString));
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}
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public static async Task Install(string gameDir, Package pkg, IProgress<string> progress)
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{
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var label = pkg.name + " " + pkg.version;
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var total = pkg.files.Count;
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var data = new byte[total][];
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var done = 0;
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using (var gate = new SemaphoreSlim(Concurrency))
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{
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var tasks = new List<Task>();
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for (var i = 0; i < total; i++)
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{
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var index = i;
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tasks.Add(Task.Run(async () =>
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{
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await gate.WaitAsync().ConfigureAwait(false);
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try
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{
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data[index] = await Http.GetByteArrayAsync(FileUrl(pkg, pkg.files[index].path)).ConfigureAwait(false);
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var count = Interlocked.Increment(ref done);
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progress.Report(label + ": downloading " + count + " of " + total + " files");
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}
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finally
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{
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gate.Release();
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}
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}));
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}
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await Task.WhenAll(tasks);
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}
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if (pkg.roots != null)
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{
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foreach (var root in pkg.roots)
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Remove(gameDir, root);
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}
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for (var i = 0; i < total; i++)
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{
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progress.Report(label + ": writing " + (i + 1) + " of " + total + " files");
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var target = FullPath(gameDir, pkg.files[i].path);
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Directory.CreateDirectory(Path.GetDirectoryName(target));
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File.WriteAllBytes(target, data[i]);
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}
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}
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public static void Uninstall(string gameDir, Package pkg)
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{
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if (pkg.roots == null)
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return;
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foreach (var root in pkg.roots)
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Remove(gameDir, root);
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}
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private static void Remove(string gameDir, string relative)
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{
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var full = FullPath(gameDir, relative);
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if (Directory.Exists(full))
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Directory.Delete(full, true);
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else if (File.Exists(full))
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File.Delete(full);
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}
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public static void CountDownload(Package pkg)
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{
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if (string.IsNullOrEmpty(pkg.downloadUrl))
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return;
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Task.Run(async () =>
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{
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try
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{
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using (await Http.GetAsync(pkg.downloadUrl, HttpCompletionOption.ResponseHeadersRead).ConfigureAwait(false))
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{
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}
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}
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catch
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{
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}
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});
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}
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}
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}
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