mirror of https://github.com/ppy/osu
260 lines
9.2 KiB
C#
260 lines
9.2 KiB
C#
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
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// See the LICENCE file in the repository root for full licence text.
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using System;
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using System.IO;
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using System.Linq;
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using JetBrains.Annotations;
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using Microsoft.Win32;
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using osu.Framework.Allocation;
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using osu.Framework.Extensions.ObjectExtensions;
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using osu.Framework.Logging;
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using osu.Framework.Platform;
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using osu.Framework.Threading;
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using osu.Game.Beatmaps;
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using osu.Game.Beatmaps.Legacy;
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using osu.Game.Online.API;
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using osu.Game.Online.API.Requests;
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using osu.Game.Rulesets;
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using osu.Game.Tournament.Models;
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namespace osu.Game.Tournament.IPC
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{
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public class FileBasedIPC : MatchIPCInfo
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{
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public Storage IPCStorage { get; private set; }
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[Resolved]
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protected IAPIProvider API { get; private set; }
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[Resolved]
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protected RulesetStore Rulesets { get; private set; }
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[Resolved]
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private GameHost host { get; set; }
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[Resolved]
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private LadderInfo ladder { get; set; }
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[Resolved]
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private StableInfo stableInfo { get; set; }
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private int lastBeatmapId;
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private ScheduledDelegate scheduled;
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private GetBeatmapRequest beatmapLookupRequest;
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[BackgroundDependencyLoader]
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private void load()
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{
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var stablePath = stableInfo.StablePath ?? findStablePath();
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initialiseIPCStorage(stablePath);
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}
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[CanBeNull]
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private Storage initialiseIPCStorage(string path)
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{
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scheduled?.Cancel();
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IPCStorage = null;
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try
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{
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if (string.IsNullOrEmpty(path))
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return null;
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IPCStorage = new DesktopStorage(path, host as DesktopGameHost);
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const string file_ipc_filename = "ipc.txt";
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const string file_ipc_state_filename = "ipc-state.txt";
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const string file_ipc_scores_filename = "ipc-scores.txt";
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const string file_ipc_channel_filename = "ipc-channel.txt";
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if (IPCStorage.Exists(file_ipc_filename))
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{
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scheduled = Scheduler.AddDelayed(delegate
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{
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try
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{
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using (var stream = IPCStorage.GetStream(file_ipc_filename))
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using (var sr = new StreamReader(stream))
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{
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var beatmapId = int.Parse(sr.ReadLine().AsNonNull());
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var mods = int.Parse(sr.ReadLine().AsNonNull());
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if (lastBeatmapId != beatmapId)
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{
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beatmapLookupRequest?.Cancel();
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lastBeatmapId = beatmapId;
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var existing = ladder.CurrentMatch.Value?.Round.Value?.Beatmaps.FirstOrDefault(b => b.ID == beatmapId && b.BeatmapInfo != null);
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if (existing != null)
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Beatmap.Value = existing.BeatmapInfo;
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else
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{
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beatmapLookupRequest = new GetBeatmapRequest(new BeatmapInfo { OnlineBeatmapID = beatmapId });
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beatmapLookupRequest.Success += b => Beatmap.Value = b.ToBeatmap(Rulesets);
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API.Queue(beatmapLookupRequest);
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}
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}
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Mods.Value = (LegacyMods)mods;
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}
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}
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catch
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{
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// file might be in use.
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}
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try
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{
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using (var stream = IPCStorage.GetStream(file_ipc_channel_filename))
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using (var sr = new StreamReader(stream))
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{
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ChatChannel.Value = sr.ReadLine();
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}
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}
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catch (Exception)
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{
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// file might be in use.
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}
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try
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{
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using (var stream = IPCStorage.GetStream(file_ipc_state_filename))
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using (var sr = new StreamReader(stream))
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{
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State.Value = (TourneyState)Enum.Parse(typeof(TourneyState), sr.ReadLine().AsNonNull());
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}
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}
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catch (Exception)
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{
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// file might be in use.
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}
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try
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{
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using (var stream = IPCStorage.GetStream(file_ipc_scores_filename))
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using (var sr = new StreamReader(stream))
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{
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Score1.Value = int.Parse(sr.ReadLine());
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Score2.Value = int.Parse(sr.ReadLine());
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}
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}
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catch (Exception)
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{
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// file might be in use.
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}
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}, 250, true);
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}
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}
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catch (Exception e)
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{
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Logger.Error(e, "Stable installation could not be found; disabling file based IPC");
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}
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return IPCStorage;
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}
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/// <summary>
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/// Manually sets the path to the directory used for inter-process communication with a cutting-edge install.
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/// </summary>
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/// <param name="path">Path to the IPC directory</param>
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/// <returns>Whether the supplied path was a valid IPC directory.</returns>
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public bool SetIPCLocation(string path)
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{
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if (path == null || !ipcFileExistsInDirectory(path))
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return false;
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var newStorage = initialiseIPCStorage(stableInfo.StablePath = path);
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if (newStorage == null)
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return false;
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stableInfo.SaveChanges();
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return true;
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}
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/// <summary>
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/// Tries to automatically detect the path to the directory used for inter-process communication
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/// with a cutting-edge install.
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/// </summary>
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/// <returns>Whether an IPC directory was successfully auto-detected.</returns>
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public bool AutoDetectIPCLocation() => SetIPCLocation(findStablePath());
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private static bool ipcFileExistsInDirectory(string p) => p != null && File.Exists(Path.Combine(p, "ipc.txt"));
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[CanBeNull]
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private string findStablePath()
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{
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var stableInstallPath = findFromEnvVar() ??
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findFromRegistry() ??
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findFromLocalAppData() ??
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findFromDotFolder();
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Logger.Log($"Stable path for tourney usage: {stableInstallPath}");
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return stableInstallPath;
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}
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private string findFromEnvVar()
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{
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try
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{
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Logger.Log("Trying to find stable with environment variables");
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string stableInstallPath = Environment.GetEnvironmentVariable("OSU_STABLE_PATH");
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if (ipcFileExistsInDirectory(stableInstallPath))
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return stableInstallPath;
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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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private string findFromLocalAppData()
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{
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Logger.Log("Trying to find stable in %LOCALAPPDATA%");
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string stableInstallPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), @"osu!");
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if (ipcFileExistsInDirectory(stableInstallPath))
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return stableInstallPath;
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return null;
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}
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private string findFromDotFolder()
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{
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Logger.Log("Trying to find stable in dotfolders");
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string stableInstallPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile), ".osu");
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if (ipcFileExistsInDirectory(stableInstallPath))
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return stableInstallPath;
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return null;
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}
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private string findFromRegistry()
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{
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Logger.Log("Trying to find stable in registry");
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try
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{
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string stableInstallPath;
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using (RegistryKey key = Registry.ClassesRoot.OpenSubKey("osu"))
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stableInstallPath = key?.OpenSubKey(@"shell\open\command")?.GetValue(string.Empty)?.ToString()?.Split('"')[1].Replace("osu!.exe", "");
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if (ipcFileExistsInDirectory(stableInstallPath))
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return stableInstallPath;
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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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}
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}
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